Simple switching control method changes power converter into a current source
Abstract
A switching converter with an LC output filter behaves as a loose-tolerance voltage-controlled current source if each switch closure is ended when switch current reaches an adjustable threshold. This converter is then combined with an external feedback to produce a precise output voltage. By generating a fixed voltage with a current source in this manner, the converter has many advantages including continuous protection of the switches, stable and equal load sharing when several converters are operated in parallel, inherent overload protection, automatic switch symmetry correction, and fast system response.
- Publication:
-
PESC 1978; Power Electronics Specialists Conference
- Pub Date:
- 1978
- Bibcode:
- 1978ppes.conf..300D
- Keywords:
-
- Current Regulators;
- Power Supply Circuits;
- Switching Circuits;
- Threshold Currents;
- Voltage Converters (Dc To Dc);
- Frequency Control;
- Lc Circuits;
- Semiconductors (Materials);
- Transient Response;
- Electronics and Electrical Engineering