L lexdean New Member Jul 11, 2009 #1 Has any one seen a circuit that regulates or limits AC current. That is overall current used. Uses a Trac or SCR in its design. This is for a transformer or Motor. I wish to adapt it so it has adjustable current limit.
Has any one seen a circuit that regulates or limits AC current. That is overall current used. Uses a Trac or SCR in its design. This is for a transformer or Motor. I wish to adapt it so it has adjustable current limit.
Hero999 Banned Jul 11, 2009 #2 If depends on what you want. Do you need a constant current source or just over load protection? For now I'll assume you need overload protection. If it's <50VAC then you can get Poly switches (PTC resistors) which go high impedance when an overload is encountered. At higher voltages you'll need to use a circuit breaker, most are manula reset but you can buy ones that auto reset.
If depends on what you want. Do you need a constant current source or just over load protection? For now I'll assume you need overload protection. If it's <50VAC then you can get Poly switches (PTC resistors) which go high impedance when an overload is encountered. At higher voltages you'll need to use a circuit breaker, most are manula reset but you can buy ones that auto reset.