×

Electronic inductive switching power amplifier

  • US 5,781,067 A
  • Filed: 04/26/1996
  • Issued: 07/14/1998
  • Est. Priority Date: 04/26/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. An Electronic Inductive Switching Power Amplifier in combination with a Direct current power source comprising,(a) An electronic pulse width modulator circuitry in electrical communication with primary semiconductor switches in further communication with a high frequency switching transformer;

  • (b) A direct current primary power source electrically connected to the said pulse width modulator, further connected to primary winding on said high frequency switching transformer and to the said primary semiconductor switches through a current sensing circuit;

    (c) A thermal sensing circuit in thermal communication with the said semiconductor switches and electrically connected to shutdown said pulse width modulator when thermal limits are exceeded;

    (d) A multifunction preamplifier electrically connected to an input signal source and further connected to a direct current power source;

    (e) The said multifunction preamplifier providing two output signals, one connected to an electrical signal isolator and the second output connected to an output driver circuit;

    (f) Said signal isolator is electrically connected to input of said pulse width modulator;

    (g) A secondary winding on said high frequency switching transformer is in electrical communication with a full wave rectifier in further communication with output semiconductor switches;

    (h) An electronic low pass filter circuit connected to an electrical power take off point receiving signal from said output semiconductor switches and thereby connected;

    (i) Said output driver circuit producing complimentary outputs electrically operates said output semiconductor switches alternately switching signal from said power take off point through said low pass filter to further operate an electrical load; and

    (j) An electrical feedback signal from said power take off point connected to said multifunction preamplifier for further stability and linearity of signal amplification.

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