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Low power consumption and low power 10W power supply chip U9513B With the advent of single-chip control switching power supply, switching power supply adapters have also surpassed power frequency transformer adapters with a strong momentum of development. This phenomenon is more obvio
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01 Space vector SVPWM control Space vector SVPWM control technology is widely used in inverters. The chain becomes a circular rotating magnetic field, which causes the motor to generate a constant electromagnetic torque. Three-phase voltage bridge inverter
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Let’s summarize the existing answers first: (Please add if you haven’t said everything) 1. The power of the motor is greater than 10kW; 2. The power of the motor is greater than 50kW; 3. The power of the motor is greater than 20% of the transformer capacity;
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Digital Capacitance Tester: Capacitance is an essential electronic component in electronic design. It is widely used in electronic design. There are many types of capacitance, and the values of different types of capacitance From a few pf to a few F, it is very important to clarify th
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About the topic of the motor position sensor, the following two questions are often asked, and I will sort them out here:What is "hardware decoding"? What is "software decoding"? The resolver position sensor has 6 lead connectors, which are: input (excitation +, excitation -), ou
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The zero deflection angle of the motor position sensor (that is, the zero deflection angle or initial angle of the resolver) is crucial to the accuracy of the motor output torque. For the new energy 150KW drive motor, when the resolver zero deflection angle has an electrical angle offset of +/-2, it
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1. Overview:SVPWM is easy to digital control because of its high DC voltage utilization rate and low harmonic content. With the development of SVPWM in recent years, it has broken away from the original intention of AC motor flux trajectory control, forming a kind of PWM control method in power elec
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As an uninterruptible power supply, UPS has been widely used in various industries such as chemical industry, transportation, railway, power plant, substation, metallurgy, nuclear power plant, mobile communication, control equipment and its emergency protection system. It is used for computer and co
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1. Input voltageChina is generally 220V. Due to the instability of the grid voltage, a wide voltage input is often required, so it is designed to work normally at 90-270V. Usually the US electricity range is 110-130V, and Japan’s electricity range is 100V.2. The ripple of the output voltageSince th
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Ripple is mainly in five aspects: input low-frequency ripple, high-frequency ripple, common-mode ripple noise caused by parasitic parameters, ultra-high-frequency resonance noise generated during switching of power devices, and ripple caused by closed-loop regulation control. wave noise. 1. Low f
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（1）VP=6V（2）VP=4V（3）VP=2V################################ #########################Conduction angle: The conduction angle is the Inside, the conduction angle is controlled by the power electronic device. Alternating current is generally a sinusoidal waveform, and its cycle is 360 degrees, the p
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IntroductionAlthough battery electric vehicles (BEVs) currently account for a relatively small share of the overall market[1], it is expected that in the next 5 to 10 years, Battery electric vehicles (BEVs) will start to replace conventional powertrains and dominate the market after 2040 [2]. Howeve
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