Back to results
US 10,186,968 B2Granted
Direct current converter
AssigneeBoe Technology Group Co., Ltd.
InventorsEnhui Guan, Shuo Chen
Life of this patent
Estimating the term…
Abstract
The present application discloses a direct current (DC) converter including a voltage divider for dividing a voltage provided by a DC voltage source, having a positive DC voltage input terminal, a negative DC voltage input terminal, and a divided voltage output terminal; a conversion circuit having a first switch, a second switch, an inductor unit, a first unidirectional conductor, and a second unidirectional conductor; a positive converted voltage output terminal; and a negative converted voltage output terminal.
Claims19
A direct current (DC) converter, comprising:
- a voltage divider for dividing a voltage provided by a DC voltage source, having a positive DC voltage input terminal, a negative DC voltage input terminal, and a divided voltage output terminal;
- a conversion circuit having a first switch, a second switch, an inductor unit, a first unidirectional conductor, and a second unidirectional conductor;
- a positive converted voltage output terminal;
- and
- a negative converted voltage output terminal;
- wherein the first switch is coupled between the positive DC voltage input terminal and the positive converted voltage output terminal;
- the second switch is coupled between the negative DC voltage input terminal and the negative converted voltage output terminal;
- the first unidirectional conductor is coupled between the divided voltage output terminal and the positive converted voltage output terminal;
- the second unidirectional conductor is coupled between the divided voltage output terminal and the negative converted voltage output terminal;
- the inductor unit is coupled between the positive converted voltage output terminal and the negative converted voltage output terminal;
- the inductor unit comprises a controller and at least two switchable inductors;
- and
- the controller is configured to control the at least two switchable inductors to be coupled in parallel to each other between the positive converted voltage output terminal and the negative converted voltage output terminal upon the first switch and the second switch are both turned on;
- and configured to control the at least two switchable inductors to be coupled in series between the positive converted voltage output terminal and the negative converted voltage output terminal upon one of the first switch and the second switch is turned on and the other is turned off;
- wherein the inductor unit comprises at least two inductor modules coupled in parallel to each other, and one or more connecting diode, each of which between two adjacent inductor modules;
- and
- an anode of each connecting diode is coupled to the negative converted voltage output terminal, a cathode of each coupled diode is coupled to the positive converted voltage output terminal.
14 more elements
A direct current (DC) converter, comprising:
- a voltage divider for dividing a voltage provided by a DC voltage source, having a positive DC voltage input terminal, a negative DC voltage input terminal, and a divided voltage output terminal;
- a conversion circuit having a first switch, a second switch, an inductor unit, a first unidirectional conductor, and a second unidirectional conductor;
- a positive converted voltage output terminal;
- and
- a negative converted voltage output terminal;
- wherein the first switch is coupled between the positive DC voltage input terminal and the positive converted voltage output terminal;
- the second switch is coupled between the negative DC voltage input terminal and the negative converted voltage output terminal;
- the first unidirectional conductor is coupled between the divided voltage output terminal and the positive converted voltage output terminal;
- the second unidirectional conductor is coupled between the divided voltage output terminal and the negative converted voltage output terminal;
- the inductor unit is coupled between the positive converted voltage output terminal and the negative converted voltage output terminal;
- the inductor unit comprises a controller and at least two switchable inductors;
- the controller is configured to control the at least two switchable inductors to be coupled in parallel to each other between the positive converted voltage output terminal and the negative converted voltage output terminal upon the first switch and the second switch are both turned on;
- and configured to control the at least two switchable inductors to be coupled in series between the positive converted voltage output terminal and the negative converted voltage output terminal upon one of the first switch and the second switch is turned on and the other is turned off;
- wherein the inductor unit comprises an inductor module having a first switchable inductor, a second switchable inductor, a first switching diode, a second switching diode, and a third switching diode;
- a first terminal of the first switchable inductor is coupled to the positive converted voltage output terminal, a second terminal of the first switchable inductor is coupled to an anode of the first switching diode;
- a cathode of the first switching diode is coupled to the negative converted voltage output terminal;
- an anode of the second switching diode is coupled to the positive converted voltage output terminal, a cathode of the second switching diode is coupled to a first terminal of the second switchable inductor;
- a second terminal of the second switchable inductor is coupled to the negative converted voltage output terminal;
- and
- an anode of the third switching diode is coupled to an anode of the first switching diode, a cathode of the third switching diode is coupled to a cathode of the second switching diode.
17 more elements
Dependencies are inferred from the claim text.