Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Patent
1999-02-25
1999-12-14
Nguyen, Matthew
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
363 17, 363132, H02M 744, H02M 75387
Patent
active
060026030
ABSTRACT:
A DC to DC converter includes a first transistor having a first power terminal connected to one side of a DC power supply and a second power terminal connected to one end of an inductor. A second transistor has a first power terminal connected to the other end of the inductor and a second power terminal connected to the other side of the DC power supply. A pair of capacitors is connected in series and defined therebetween a node which is connected to a ground potential. A third transistor has a first power terminal connected to the one end of the inductor and a second power terminal connected to one end of the pair of capacitors. A fourth transistor has a first power terminal connected to the other end of the pair of capacitors and a second power terminal connected to the other end of the inductor. Each transistor includes a diode connected between the first power terminal and the second power terminal thereof. Each diode is oriented to conduct current in a direction opposite its corresponding transistor. A controller is connected to a control terminal of each transistor for controlling the switching thereof. The DC to DC converter can be operated to increase or decrease a DC voltage between the DC power supply and the pair of capacitors connected in series. Connecting the ground potential to the node between the pair of capacitors avoids generating large potential differences between the DC power supply and the pair of capacitors.
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Elliott Energy Systems, Inc.
Nguyen Matthew
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