Frequency modulation and voltage regulation power supply design

The national power currently standards are not uniform, it can be used for all kinds of transport such as cars, various types of ships, and the vehicle's voltage regulator power inverter using widely. In the field of solar and wind power, the regulator power inverter plays an irreplaceable role. With the voltage regulator power inverter, we can use the direct current (batteries, switching power supply, fuel cells, etc.) into alternating current to provide a stable and reliable power for the electrical. Voltage and variable frequency power supply's studying in the current national economic development is of great significance. The purpose of this design is the design voltage and variable frequency power supply, use the intelligent control chip AT89C51 as the control of the core components of the PWM control signal. Combined with CPT technology in the converter, in isolation for the drive circuit to achieve power on-off controlling. To realize the power supply voltage and frequency adjustable.