×

Self synchronizing power converter apparatus and method suitable for auxiliary bias for dynamic load applications

  • US 8,824,167 B2
  • Filed: 07/18/2011
  • Issued: 09/02/2014
  • Est. Priority Date: 07/18/2011
  • Status: Active Grant
First Claim
Patent Images

1. A bias voltage supply to supply multiple regulated bias supply potentials to dynamic loads, comprising:

  • a DC/DC converter including a transformer having at least a first winding, a second winding and a core, the first winding coupled at a first node to receive an input at a first input potential and coupled at a second node to provide a first output potential and a second output potential with an output voltage which is higher than an input voltage supplied to the DC/DC converter, the DC/DC converter also including a converter switch operable to selectively couple the second node of the first winding to a ground reference node;

    an error circuit coupled to control the converter switch through the second winding of the transformer based at least in part on a difference between the first output potential and a reference potential; and

    a synchronization capacitance electrically coupled in parallel with the diode between the first winding and the VCC output node that in response to a dynamic load condition provides a signal that is reflected by the first winding across the transformer to the second winding to drive the converter switch to synchronize operation with a periodic load demand.

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