6V Power Supply With 12V Relay Circuit
Description :
This ambit allows a 12v broadcast to accomplish on a 6v or 9v supply. Most 12v relays charge about 12v to "pull-in" but will "hold" on about 6v. The 220u accuse via the 2k2 and basal diode. When an ascribe aloft 1.5v is activated to the ascribe of the schema, both transistors are angry ON and the 5v beyond the electrolytic causes the abrogating end of the electro to go beneath the 0v abuse by about 4.5v and this puts about 10v beyond the relay.
This ambit allows a 12v broadcast to accomplish on a 6v or 9v supply. Most 12v relays charge about 12v to "pull-in" but will "hold" on about 6v. The 220u accuse via the 2k2 and basal diode. When an ascribe aloft 1.5v is activated to the ascribe of the schema, both transistors are angry ON and the 5v beyond the electrolytic causes the abrogating end of the electro to go beneath the 0v abuse by about 4.5v and this puts about 10v beyond the relay.
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