As a "post-lithium battery", the highly anticipated competition for the practical use of all solid-state batteries has begun. Toyota, which is leading in patents, is discussing public trial production of cars in 2021. Volkswagen of Germany and Quantum Scape, a Silicon Valley start-up in the United States, will start producing batteries that can significantly extend the range of pure electric vehicles (EV) around 2024. Solid-state batteries are regarded as the next-generation key technology affecting the electric vehicle industry. Different from lithium-ion batteries and lithium-ion polymer batteries that are commonly used today, solid-state batteries use solid electrolytes instead of the electrolyte and diaphragm of traditional lithium-ion batteries. Why are solid-state batteries so popular? There are two major advantages. First, it is highly safe and will not catch fire or even explode under extreme conditions. Second, the high cruising range mainly reflects its greater energy density. These two points solve the shortcomings of liquid lithium batteries, and people have to look forward to solid lithium batteries as the next technology outlet to replace liquid lithium batteries. At present, solid-state batteries are still in a fairly laboratory-pilot stage, and they are also facing many technical obstacles, such as the formation of lithium dendrites, low coulombic efficiency caused by interface impedance, and side reactions between solid electrolytes and positive and negative electrodes. This will greatly affect the fast charging performance and cycle life of solid-state batteries. The basic problems that solid-state batteries used in new energy vehicles face in the market promotion mainly inc

In recent years, my country's coal and other conventional energy sources have been seriously in short supply, and environmental problems such as air pollution caused by coal burning have also become increasingly serious. The energy problems and environmental problems caused by the power system characterized by a centralized and single power supply method have attracted more and more attention from the society. With the development and utilization of new energy and the development of smart grid technology, a new form of grid structure-smart microgrid has emerged, which is the mainstream direction of future grid development. The concept of "carbon neutrality" has changed from "avant-garde" to "mass", and the optical storage market has also ushered in a new round of overall development of the industry. The single string inverter has reached the power level of 300kW. In response to the increasing test needs of the photovoltaic industry, APM provides more complete test solutions for photovoltaic inverters, photovoltaic simulators, and microgrid systems. In this live broadcast, APM technical experts will combine the market prospects of microgrids and related policies to interpret related test technologies and solutions in the microgrid field (including grid-connected inverters, energy storage converters, and new energy vehicles). 1. Basic composition and typical structure of microgrid The development of microgrid technology is closely related to advanced power electronics technology, computer control technology, and communication technology. In all microgrid systems, the basic component is the power source. The power supply must meet the load requirements in the microgrid, such as capacity, and other technical and economic considerations. Among them, distributed photovoltaics have received widespread attention. I

In the application process of polyoxymethylene, it usually has the dual advantages of performance and cost, which makes the balance of material selection bias towards polyoxymethylene POM. Let's take a look at some of the products that POM can replace. 1. Replace polyester PBT Polyoxymethylene performs better than PBT in some typical applications of PBT (based on better heat and drug resistance), and its electrical properties are sufficient, and the cost advantage is prominent at this time. In high-end car applications, the cost difference reaches 20%. Therefore, in the competition between PBT and reinforced polyamide, polycarbonate and polyoxymethylene in the field of automobile manufacturing, polyoxymethylene cannibalize its market frequently. 2. Replace polycarbonate PC In the automotive industry, PC has a long history of use in interior and exterior decorative parts, but the inherent properties of POM plus the possibility and cost difference brought by related new technologies have made it replace a large number of PC structural solutions in the category of interior and exterior decorative parts. 3. Replace polyamide PA There are many varieties of polyamide, the application started early, and the foundation of industrial application is good. However, in a situation where POM is slightly better in terms of a series of characteristics, it does have the potential to replace nylon in many situations. In the intake manifold, the use of reinforced polyoxymethylene instead of nylon was implemented by leading automobile companies such as BMW Ford, and other structural par

The launch of Apple's first-generation Airpods in September 2016 promoted the transformation of the headset industry and opened the era of wireless headsets. From the original Bluetooth 4.0 and 4.2 to today's Bluetooth 5.0, the Bluetooth version is constantly being updated iteratively, and Bluetooth headsets are also changing accordingly. TWS headset is a new smart wearable product produced by applying TWS technology to the field of Bluetooth headsets. It is mainly composed of a charging box part and a wireless headset part. It has the characteristics of true wireless, intelligent, active noise reduction and diversified interaction methods. . However, due to the small size and small battery capacity of the TWS headset, and the user's pursuit of the headset's connection stability, battery life, sound quality, etc., the Bluetooth headset design stage is to ensure faster transmission speed and more stable connection ability. Under the premise, it is necessary to continuously optimize and reduce power consumption to extend battery life. Moreover, in order to define the performance and quality of the headset, TWS headsets need to undergo a lot of testing during the R&D and production stages. Bluetooth headset RF performance verification is one of the very important content. Due to the very low power consumption of the Bluetooth headset, the power of the headset speaker unit is generally 3mW or 5mW, which also brings new challenges to the test. Users need to select a high-precision power supply to power the Bluetooth headset to improve the accuracy of the test results. , To avoid misjudgment. However, the challenge faced by engineers is much more than that. Because Bluetooth headsets are powered by batteries, the voltage of the battery in use does not maintain a constant output, but as the SOC decreases, the output voltage gradually decreases until the

Function Description: In the process of daily testing, engineers need to record the voltage, current, power and other conventional electrical parameters of the DUT when it is working, and sometimes it is necessary to measure the internal/surface temperature of the DUT when it is working, so as to analyze the temperature of the object under test after the test. Various characteristic curves that vary with current, temperature with voltage, and temperature with time. Users can connect the DUT and TC inputs on the front panel with optional accessories (including thermocouple K-type temperature probe adapter), use the menu function to measure and display the temperature of the object to be measured, and also set the safety threshold of DUT temperature protection, such as setting 50℃ protection, when the temperature is reached, an alarm message will be issued and the power supply will stop output. Application market: Semiconductor switching devices (such as MOSFET, IGBT), analog/digital circuit ICs, automotive IC chips, wireless devices (such as wireless mice, Bluetooth headsets), smart wearable devices (such as sports bracelets, smart watches), Internet of Things devices (such as IOT watt-hour meter), automotive electronics (such as car speakers, lighting, driving lights, turn signals) and other temperature rise/life testing.

UAVs are widely used in various industries and fields due to their advantages such as no human intervention and rapid deployment. However, the UAV has a short flight time. This shortcoming limits the large-scale application of UAVs. Most drones use airborne rechargeable lithium batteries, which rarely last for more than one hour. However, in some fields, such as emergency communications, on-site monitoring, on-site command and other fields, drones are required to be left empty for long periods of time. Therefore, UAVs powered by ground power through wires, that is, tethered UAVs, came into being. Tethered UAV systems are generally divided into a ground part and an air part. The two parts are connected by cables. The ground part is generally composed of power and control parts, and the air part is generally composed of batteries, fuselage, sensors and other parts. Compared with other types of UAVs, tethered UAVs can stay in the air for a long time without being limited by electric energy because of the existence of cables. It has obvious advantages in emergency communication, high-altitude monitoring, environmental monitoring and other scenarios, and can be fixed. Installation or vehicle installation and can move with the vehicle. Tethered drones are expensive to build and the application scenarios are more complicated. Once the power system has a problem, it is likely to cause damage to the precision sensing or flight control system on the aircraft, and in some cases there is a risk of crashing. In order to avoid the occurrence of high losses, the engineers who designed the drone have put forward higher requirements on the quality of the power supply. After multiple comparison tests, a drone manufacturer engineer finally chose APM high-power DC power supply. APM high-power DC power supply has high power density, high reliability, high precision, perfect operation port, and internal integration of powerful test functions, which can more comprehensively

The annual PCIM Europe was held in nuremberg, Germany from May 7 to 9. The exhibition covers four themes, power electronics, intelligent motion, renewable energy, and energy management. With the fields of research and industry together, PCIM is a one-stop shop for technical knowledge, market trends, customer attraction and valuable contacts. In PCIM Europe, APM exhibits programmable DC power supply, programmable AC power supply and upcoming new products such as high-power DC power supply (6U up to 36kW) and DC electronic load (1/2 2u-13u, 300w-28.8kw). APM always adheres to the enterprise spirit of "keep improving, pursue excellence", and constantly improves products and expands product lines to meet customers' different requirements. While ensuring the quality of products, we are committed to providing customers with better service. For single unit, the delivery period of products can reach 3-7 days, allowing customers to save more time and cost. In addition, we also have a professional customer service team, which is composed of technical engineers, who can directly connect with customers and provide customers with professional and clear answers at once.

Philippine, as the largest Semiconductor and Electronics market in South-east Asia, has been a growth point for APM market in South-east Asia. Thus, APM keep promotion in Philippine. PSECE, the most professional Semiconductor and Electronics exhibition in south-east Asia market, is the good choice. Different with the previous exhibition to promote APM in Philippine, APM has an important target in this exhibition. APM will have forecast of new product in PSECE. New product contains DC E-load and high power DC source. DC E-load will be a new and key product of APM in the next half year especially in Southeast Asia market. We have already get plenty of potential demand from Southeast Asia market. APM DC load covers from 300W to 28800W, including 3 voltages for selection, 150V, 600V and 1200V. For rack, APM DC load could reach to 13U. According to customer`s request, we especially design a 1/2 2U. Half width make APM unit more convenient to use in testing and manufacture. Comparing with the past, power range of APM DC source single unit is 4000W. When customer has demand in high power range. Parallel or series connect in a cabinet is a solution. It could say that power range beyond 4000

Vietnam, due to international economic situation and industrial transfer from surrounding countries, has been a growth point for APM market in South-east Asia. Thus, APM keep promotion in Vietnam. NEPCON, the most professional Semiconductor and Electronics exhibition in Vietnam domestic market, is a good choice. Different with the previous exhibition to promote APM in Vietnam, APM has an important target in this exhibition which officially showed exact model of new product in NECPON. New product contains DC E-load and high power DC source. DC E-load is a new and key product of APM in the coming days especially in Vietnam market. We have already got plenty of potential demand from Southeast Asia market. APM DC load covers from 300W to 26400W, including 3 voltages for selection, 200V, 600V and 1200V. For rack, APM DC load could reach to 13U. Among of series, 600V is already to available to sale officially. 1200V will be next series. Comparing with the past, power range of APM DC source single unit is 4000W. When customer has demand in high power range. Parallel or series connect in a cabinet is a solution. It could say that power range beyond 4000W is a slab of APM, one of the slab is the rack. Now, with the releasing of high power DC source, APM become more competitive in the power range higher than 4000W. 18000W only need 3U rack. It is more space-efficient than usual. On this stage, 80V, 165V and 250V series are already to sale. Demo unit is available at the meanwhile. APM

India, as a country with second large population in the world, is a market in South Asia with strong industry potential. India is one of the traditional market of APM and India is one of the earliest market of APM programmable power supply sold in Asia. Thus, India and Electronica means a lot to APM. To develop further in India market, Electronica is a good platform for promotion. Electronica, as the most famous electron exhibition in the world. It attracts lots of exhibitors, buyer and electron industry professional. It is an exhibition full of chance and latest information. Different with the previous exhibition of APM in 2019, APM first show DC E-load in oversea exhibition.In this exhibition, there will be one E-load in the booth,modelEL600VDC4400W. DC E-load will be a new and key product of APM in coming years` development. It is definitely will open a new market for APM not only in India but also the world. There will be more chance for APM to known by world. Because E-load has wider application area.

Congratulations to APM Russia Distributor PARAMERUS attend the event at 16th International exhibition Power Electronics on 22–24 October 2019 at Crocus Expo, Moscow, Russia. This year we show out our new product high power DC power supply and DC E-load ,welcome for the new inquiries. APM DC load covers from 300W to 26400W, including 3 voltages for selection, 200V, 600V and 1200V. For rack, APM DC load could reach to 13U. Among of series, 600V is already to available to sale officially. 1200V/200V will be next series.High power DC power supply 80V, 165V and 250V series are also already open to sale,40V/250V/500V/1000W/1500V will come out very soon. APM will keep high efficiency, high precision and high stability in our new product and we believe APM could earn more approval from different customer from the world by good quality and good service.

Nov 12-15, 2019, APM exhibits at productronica, Munich, Germany. As one of the most famous exhibitions, productronica gathering well-known brands from the global electronics-related industry. Following the market trend, APM has participated in the exhibition for three times-promoting our brand and improving our technologies. APM has six main products: All-day technology currently mainly promotes six categories of products: DC power supply (0.6-4kw), high-power DC power supply (6-36kw), AC source (0.6-5kw), DC system (up to 180kw), three-phase AC source (1.8-15kw), and DC electronic load (3.4-26.4kw). The products are accurate and efficient. A All products need to pass hundreds of ATE reviews and dozens of manual inspections, to ensure stable use. A test report containing all inspection content will be shipped with the product. The L/T of APM`s products is short. It can be 3 days for DC and AC source, considerably reducing the time cost. Also, a customer service team with engineers good at English always stands by, to provide professional technical services in time. Adhering to providing 24 hours a day of continuing services to our customers, APM always welcomes consulting from you.

Characteristics and application of electronic loads Enterprises and research institutions always use variable resistors to simulate load for simple experiments. It is cumbersome that different variable resistors should be used for different load currents. When the test voltage changes, the value of the load current just adjusted must be changed and readjusted. With low efficiency, it is almost impossible to complete the test of power supply, adapter and battery. The electronic load can simulate the load like electrical appliances, accurately detecting the load voltage and adjusting the load current. It can also simulate the short circuit of the load, the resistance and capacitance load, and the rise time of capacitive load current, etc-Electronic load has become a powerful tool in design, development, production and testing. Operating principle of electronic load An electronic load is the "load" function realized by electronic devices, whose output port conforms to ohm's law. Specifically, the electronic load is a device that dissipates power and consumes electrical energy by controlling the flux of the internal power device MOSFET or transistor. Generally, it contains CC, CV, CR, CP, short circuit and dynamic load mode, which allow it simulates different load conditions. Electronic load function With CC,CV,CP,CP, constant impedance, dynamic current, dynamic resistance, frequency sweep function and list mode, APM high power DC

APM Programmable DC Load is equipped with complete protection function including internal and external protection. These two types of protection have their own characteristic. Internal protection contains: OVP, OCP, OPP, Reverse Voltage and OTP; External protection contains OVP, OPP, On load overvoltage protection and Low Voltage Protection. User should select suitable programmable E-Load according to the output characteristic of equipment under test. Module of E-load could work independently or parallel operation. Series connection is dangerous for module operation. The ideal status is operation within the measuring range of single module. Then, it is parallel connection operation. It means voltage range of the selected module must match test requirement. The sum of current and voltage for single module or multiple parallel modules should match test requirement. At the meanwhile, it should be careful to select the E-load with true protection function according to actual situation. It could avoid exception occur. In these years, function of programmable E-load is increasingly known by people including various production line (phone charger, phone battery, automobile battery, switch

Normally, programmable power supply has two operation mode, CV and CC mode. Operation mode is determined by setting of power source and load. When the load is large in circuit, output current could not reach to limited value. Then power source operates in CV mode. Output voltage value will be equal to setting voltage value. If lower the load in circuit, output current of power source will reach to limited value. Power source will enter CC mode. According to Ohm law, U=IR, output voltage will lower than setting voltage. As the load become lower, output voltage will decrease according to law to maintain constancy of output current. How to set CC mode? Enter sub interface of Protection could set the power source to enter CC mode when output current is higher than OCP setting value.

With the development of technology, more and more power electronic products are able to operate under DC + AC input conditions, which are not supported by all power supply in the market. However, APM technologies AC power supply can realize seamless AC to DC switching and provide AC + DC output mode, which not only shortens the AC to DC conversion period, but also reduces the loss and improves the energy efficiency. ● High speed DSP+CPLD control, high frequency PWM power technology, high output efficiency Adopt the current high-end power supply DSP + CPLD control technology, strengthen the internal data and logic operation ability, and control faster, product operation more stable. Quickly set and read various waveforms, generate harmonic analysis, and support remote software upgrade and update. ● Built in power meter can measure 15 electrical parameters such as voltage, current and frequency A high-precision power meter

Electronic load has the testing function. It is used as a firmare to simulate the electrical environment and electrical equipment. The simulation state parameters can be changed arbitrarily, so as to test the performance of electrical equipment in various ordinary States and limit states. It is composed of resistance, inductance, capacitance, transistor and integrated circuit. DC Electronic load is to control the flux of power devices or transistors through internal control to let work A device that consumes power or electricity. It is an indispensable instrument for power supply production and battery performance test. Generally speaking, electronic load needs constant current(CC), constant resistance(CR), constant power(CP), constant voltage(CV), short circuit test mode, dynamic current, dynamic resistance and other working mode, which can simulate different loads. APM technologies programmable DC electronic load has perfect protection function, with OCP, OPP, OTP,OVP, reverse alarm, to ensure the test safety.

The company is headquartered in France and the order is from Brazil office. The application is for vehicle motor test. Customers spent months testing the product's performance, stability and reaction speed, and finally firmly chose APM technologies programmable DC power supply. Test subjects(Part) Customer test scene (Part) The testing process includes the following equipment: The motor to be tested is placed in a constant temperature and humidity box whose te

With the continuous development and maturity of switching power supply technology, the demand for switching power supply in various application fields is also growing. Switching power supply has gradually replaced the market position of traditional linear power supply. Power is higher, while volume and weight are significantly reduced, providing more cost-effective options for many space constrained areas. As we all know, switching power supply will bring electromagnetic interference, which will pollute the power grid and directly affect the normal operation of other equipment. As radiation interference, it will also cause electromagnetic pollution to the space. Therefore, the electromagnetic compatibility of power supply must be considered when purchasing power supply. Electromagnetic compatibility refers to the ability of equipment or system to work normally in its electromagnetic environment without any intolerable electromagnetic disturbance. APM programmable AC power supply series adopts active PFC circuit with power factor up to 0.99. With soft start and relay on timing control, it can effectively suppress the generation of surge current and reduce the amplitude of harmonic current. The input filter can suppress or remove electromagnetic interference and achieve the purpose of electromagnetic compatibility. Zero voltage / zero current conduction type is select

In order to further improve the user's operation experience of APM Power Supply, the following summary shares some user-friendly menu instructions, solves your daily questions, and makes your operation easier. 1. Function of limit setting After setting the maximum and minimum limits of voltage or current, you can safely turn the knob to adjust the voltage or current on our AC power supply or DC power supply, without worrying about unexpected operation leading to over or below the required parameter output, Nice! 2. Function of quick recall function Common voltage of daily test or debugging circuit, user stores the frequently used data 3.3V, 5V, 12V, 24V, 48V, etc. in the power supply's memory. When switching the test voltage, user can press the numeric key directly after entering the quick recall mode, can quick recall the data which are stored in [1]~[9], Nice!

The DC-DC Conversion Module is a common power converter, which can realize the conversion of high/low Direct Current. After conversion, it can realize a single output or multi-channel output of different specifications. Widely used in electric automobile, aviation, military industry, industrial automation, LED lighting, communications, information and medical industries, etc. The functional verification of the DC-DC Conversion Module is very crucial, as for the traditional handcraft testing, has been unable to meet the growing market demand, no matter in efficiency or accuracy. The advantages of the automatic test system gradually replacing the traditional handcraft testing become more and more obvious, and it can also bring huge benefits to companies: 1) Reduce manpower expense After the implementation of the automatic test system, it reduced the test engineers' manpower and time investment; 2) Improve efficiency

As the power supply equipment of electronic products or batteries, in addition to the performance to meet the requirements of power supply products, its own protection measures are also very important. For example, OVP, OCP, OPP, OTP, over-current protection point test, that is, OCP (over current protection) test. It used to adjust the current manually and observe the current manually. But the reaction speed of hands and eyes and other factors lead to multiple measurements to determine. The OCP and OPP test functions of the programmable DC electronic load developed and designed by APM technology solve this problem well. Under this menu, the user can set the start value, end value, steps, time of each step of current or power, and also set the upper and lower limit of trigger voltage and specification. In the OCP (OPP) test mode, the electronic load works according to the start value, the current (power) increases according to the step value every certain time, and at the same time, the load input voltage is detected to determine whether the OCP (OPP) occurs. If the load input voltage is higher than the trigger voltage, indicating that OCP (OPP) has not occurred, continue the current (power) step operation until the end of operation. If the load input voltage is lower than

Electronic load is a kind of electronic equipment which simulates the real load. It is often used in the design verification and quality inspection of power drive equipment such as power supply. 1) Various static loads can be simulated by constant current(CC), constant voltage(CV), constant power(CP) and constant resistance(CR); 2) The complex dynamic load in reality can be simulated by dynamic and programmable loading modes; 3) It can measure voltage, current, time and other parameters, realize intelligent analysis and automatic test and other complex applications. Precautions for electronic load selection:

Fuel cell is one of the best alternatives to traditional energy, and it has developed rapidly in recent years. It has the characteristics of fast start-up, high conversion efficiency, and low operating temperature and so on. In order to test the performance of the fuel cell, the performance of the electronic load is also required: the minimum operating voltage, high resolution, high precision, wide voltage range, remote control, stable operation under high power load, etc. At present, the common electronic load in the market cannot fully meet the test requirements. However, with the development of APM technologies, a programmable DC electronic load for fuel cell testing has been developed from scratch, and now it is popular at domestic and abroad. The new high power DC electronic load has the advantages of high precision, good stability, high reliability and complete functions. Therefore, an enterprise chooses APM technologies DC electronic load EL600VDC26400W when testing the fuel cell and two loads operate in parallel.