Currently on the market, sales of the largest, the most common car inverter output power is 70W-150W, inverter circuit mainly uses TL494 or KA7500 chip-based pulse vehicle power inverters width modulation circuit.
The entire circuit-board inverter can be divided into two parts, each part of the adoption of a TL494 or KA7500 chips control circuit, including the role of the first part of the circuit is 12V DC car battery, etc. will be provided by high-frequency PWM (pulse width modulation) switching power supply technology to convert into a 30kHz-50kHz, AC 220V or so; the role of the second part of the circuit is the use of the bridge rectifier, filter, pulse-width modulation and switching power output and other technologies, the 30kHz ~ 50kHz, 220V alternating current into Solar power inverters alternating current of about 50Hz, 220V in.
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