×

Ultra-wide input range switching power supply for circuit protection devices

  • US 6,583,997 B1
  • Filed: 01/30/2002
  • Issued: 06/24/2003
  • Est. Priority Date: 01/30/2002
  • Status: Active Grant
First Claim
Patent Images

1. A wide input range switching power supply apparatus for a circuit protection device for protecting an external circuit, the power supply comprising:

  • a supply input;

    a rectifier circuit for rectifying an AC line voltage at the supply input;

    a switch-mode DC-to-DC converter coupled to the rectifier circuit for providing a low voltage DC power to a load at a supply output, the converter comprising a switch having an open state and a closed state and a control circuit for controlling the state of the switch; and

    a solenoid coil also operative for driving a trip mechanism of said circuit protection device;

    wherein the control circuit is operatively coupled to receive operating power from the supply output.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×