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Inrush Current Limiter |
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| Q1 is an npn Darlington and Q2 is
a pnp Darlington. MOV1 is a metal-oxide varistor and R8 is an NTC thermistor for limiting
inrush current. This circuit limits ac line current to a load. When a predetermined interval has passed, RY1 shorts out thermistor or resistance RB. R4 can be 150 kW if R9 is not used. If power is removed, the circuit is ready for immediate restart. |
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