DC to DC converter employing a free-running single stage blockin

Details DC to DC converter employing a free-running single stage blockin DC to DC converter employing a free-running single stage blockin

1992-01-17

1993-08-24

Sterrett, Jeffrey

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 89, 363 97, 363131, 323266, 323274, H02M 3335

Patent

active

052394530

ABSTRACT:
A DC to DC converter employs a single ended blocking oscillator which employs a transformer having a primary winding and a plurality of secondary windings. The transformer has a core which is of a square loop hysteresis type. The blocking oscillator is supplied operating voltage by means of a voltage regulator circuit which operates to regulate the voltage applied to the blocking oscillator according to both input voltage variations and output load variations. Due to circuit operation, the output voltage is extremely well regulated while having low ripple. An output secondary winding of the transformer is coupled to a rectifier. The rectifier output is fed back to the regulator to control the voltage applied to the blocking oscillator to cause the blocking oscillator to provide a waveform to maintain the output voltage constant.

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