A common car inverter circuit and principle

Car Inverter indicators: Input voltage: DC 10V ~ 14.5V; Output Voltage: AC 200V ~ 220V 10%; Output frequency: 50Hz 5%; Output power: 70W ~ 150W; conversion efficiency: more tha

n 85%; the inverter operating frequency: 30kHz ~ 50kHz. Currently on the market sales of the largest, the most common car inverter output power of 70W-150W, the inverter circuit mainly uses TL494 or KA7500 chip-based pulse width modulation circuit. One of the most common car inverter circuit schematic shown in Figure 1.

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