×

Power supply device and recording apparatus

  • US 7,746,049 B2
  • Filed: 03/26/2008
  • Issued: 06/29/2010
  • Est. Priority Date: 03/30/2007
  • Status: Expired due to Fees
First Claim
Patent Images

1. A power supply device comprising:

  • a DC-DC converter configured to regulate an output voltage based on an externally input instruction; and

    a discharge circuit connected to an output capacitor of the DC-DC converter, wherein the discharge circuit includes,a switch element configured to switch between a conductive state and a nonconductive state according to an instruction; and

    a capacitor-resistor (C-R) circuit configured to charge electric charge accumulated in the output capacitor of the DC-DC converter when the switch element is conductive and to discharge the electric charge to ground while the switch element is nonconductive.

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