70-watt switching power supply integrated circuit diagram based on KA2S0880
Source: InternetPublisher:supremeOne Keywords: switching power supply circuit diagram integrated circuit PLUSMN Updated: 2020/09/30
The schematic shows a 70W stereo amplifier power converter that is built on a chip KA2S0880, which includes all the necessary components to build the main power supply capabilities of the power supply. The chip is very stable in operation and has all necessary protections.
Features:
Input voltage: 220 - 240 V AC
Output voltage (no load): ± 16,5 V
Full load: ± 15 V... . ± 15.5 V
long-term maximum power output, it is a chip in the world: 70W
Operating frequency: 20kHz
Power efficiency: 90...93%
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