Synchronized parallel running power converter
AssigneeMicro-Star Int'l Co., Ltd.
InventorsChien-Chi Hsu, Wen-Chi Hsieh, Fu-Kang Cheng
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Abstract
In prior arts, additional pulse-width modulators and more costs are needed for increasing the current output. The invention provides a synchronized parallel running power converter. The power converter includes multiple power converters controlled by single-phase or double-phase pulse-width modulators. Each power converter includes a first pulse input port, a second pulse input port and a current output port. Each first pulse input ports are coupled, and each second pulse input ports are coupled also, so that each power converter is controlled by the same pulse signal and provide a same output current to be added as several times of current output.
Claims20
A synchronized parallel running power converter, controlled by a single-phase pulse-width modulator;
- said single-phase pulse-width modulator having a first pulse output port and a second pulse output port for pulse outputs, said power converter comprising:
- a first power converter, having a first pulse input port, a second pulse input port and a current output port;
- said first pulse input port is coupled to said first pulse output port of said single-phase pulse-width modulator;
- said second pulse input port is coupled to said second pulse output port of said single-phase pulse-width modulator;
- and
- a second power converter, having a first pulse input port, a second pulse input port and a current output port;
- said first pulse input port is coupled to said first pulse output port of said single-phase pulse-width modulator;
- said second pulse input port is coupled to said second pulse output port of said single-phase pulse-width modulator;
- wherein said power converters are synchronized by controlling said single-phase pulse-width modulator thereby equalizing the output currents from said current output ports.
A synchronized parallel running power converter, controlled by a double-phase pulse-width modulator, said double-phase pulse-width modulator having a first pulse output port, a second pulse output port, a third pulse output port and a fourth pulse output port for pulse outputs, said power converter comprising:
- a first power converter, having a first pulse input port, a second pulse input port and a current output port;
- said first pulse input port is coupled to said first pulse output port of said double-phase pulse-width modulator;
- said second pulse input port is coupled to said second pulse output port of said double-phase pulse-width modulator;
- and
- a second power converter, having a first pulse input port, a second pulse input port and a current output port;
- said first pulse input port is coupled to said first pulse output port of said double-phase pulse-width modulator;
- said second pulse input port is coupled to said second pulse output port of said double-phase pulse-width modulator;
- a third power converter, having a first pulse input port, a second pulse input port and a current output port;
- said first pulse input port is coupled to said third pulse output port of said double-phase pulse-width modulator;
- said second pulse input port is coupled to said fourth pulse output port of said double-phase pulse-width modulator;
- and
- a fourth power converter, having a first pulse input port, a second pulse input port and a current output port;
- said first pulse input port is coupled to said third pulse output port of said double-phase pulse-width modulator;
- said second pulse input port is coupled to said fourth pulse output port of said double-phase pulse-width modulator;
- wherein said power converters are synchronized by controlling said double-phase pulse-width modulator thereby equalizing the output currents from said current output ports.
Dependencies are inferred from the claim text.