Remote control circuits for lamps or other applications
Source: InternetPublisher:拿铁三分糖 Keywords: Power supply other power circuits Updated: 2021/02/15
This circuit uses the raw current from a small 6.3V filament transformer to drive a triac and provide energy to the load. When switch S1 is in the 6V secondary winding of the transformer, a small magnetizing current flows through the primary winding. This magnetizing current may be large enough to trigger the triac. Therefore, a shunt resistor R1 needs to be used to prevent triggering from occurring.
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