2014年3月27日星期四

Car inverter circuit

Car 12 volt inverter of the whole circuit can be divided into two parts, each part adopts one TL494 or KA7500 chip to form a control circuit, wherein the first part of the circuit is the role of the car battery to provide 12V DC, by the high frequency PWM (pulse width modulation) technique of switching power supply into 30kHz50kHz, about 220V alternating current; the second part of the circuit function is to use the bridge rectifier, filter, pulse width modulation and switching power output technology, 30kHz ~ 50kHz, 220V AC into 50Hz, 220V alternating current.



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