×

Method and apparatus for trimming current limit and frequency to maintain a constant maximum power

  • US 7,109,696 B2
  • Filed: 09/28/2005
  • Issued: 09/19/2006
  • Est. Priority Date: 08/31/2001
  • Status: Expired due to Fees
First Claim
Patent Images

1. A circuit, comprising:

  • a transistor coupled between first and second terminals;

    a control circuit coupled to the transistor;

    an oscillator coupled to the control circuit;

    a control current sensor circuit coupled to a control terminal and to the control circuit, the control current sensor circuit to sense an excess control current through the control terminal, the control circuit to switch the transistor in response to the oscillator and the control current sensor;

    a current limit circuit coupled to the transistor and the control circuit to limit a current through the transistor; and

    a trim circuit coupled to the oscillator and the current limit circuit, the trim circuit to be trimmed during manufacture of the circuit to determine a maximum deliverable power value of a power supply.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×