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US 11,238,827 B2Granted
Voltage regulation circuit supplying reference voltage to display device
AssigneesHkc Corporation Limited, Chongqing Hkc Optoelectronics Technology Co., Ltd.
InventorXiaoyu Huang
Life of this patent
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Abstract
A voltage regulator circuit includes a power chip, a controlling chip, and a regulating chip. The controlling chip is configured to transmit a control signal, the regulating chip is configured to regulate an outputted voltage from the power chip to a preset voltage according to the control signal. The controlling chip is further configured to convert the preset voltage to a reference voltage.
Claims17
A voltage regulator circuit, comprising:
- a power chip;
- a controlling chip, configured to transmit a control signal;
- and
- a regulating chip, connected to the power chip and the controlling chip, and configured to regulate an outputted voltage from the power chip to a preset voltage according to the control signal, and transmit the preset voltage to the controlling chip;
- wherein the controlling chip is further configured to convert the preset voltage to a reference voltage,
- wherein the regulating chip comprises:
- a first gate circuit connected to the controlling chip, and configured to receive the controlling signal;
- a second gate circuit connected to the controlling chip, and configured to receive the controlling signal;
- and
- a bias circuit, wherein the first gate circuit is connected in parallel with the second gate circuit and the connected first gate circuit and second gate circuit are in series with the bias circuit, and the first gate circuit, second gate circuit, and the bias circuit is located between a voltage output terminal of the power chip and ground;
- wherein the control signal comprises:
- a first control signal turning on the first gate circuit while turning off the second gate circuit, and a second control signal turning off the first gate circuit while turning on the second gate circuit.
9 more elements
A voltage regulator circuit, comprising:
- a power chip;
- a controlling chip, configured to transmit a control signal;
- and
- a regulating chip, comprising:
- a first gate circuit connected to the controlling chip, and configured to receive the controlling signal;
- a second gate circuit connected to the controlling chip, and configured to receive the controlling signal;
- and
- a bias circuit, wherein the first gate circuit is connected in parallel with the second gate circuit and the connected first gate circuit and second gate circuit are in series with the bias circuit, and the first gate circuit, second gate circuit, and the bias circuit are located between a voltage output terminal of the power chip and ground;
- wherein the control signal comprises:
- a first control signal turning on the first gate circuit while turning off the second gate circuit, and a second control signal turning off the first gate circuit while turning on the second gate circuit;
- the first gate circuit converts an outputted voltage from the power chip to a first preset voltage according to the first control signal;
- the second gate circuit converts the outputted voltage from the power chip to a second preset voltage according to the second control signal;
- and
- the controlling chip is further configured to convert the first preset voltage to a first reference voltage, and convert the second preset voltage to a second reference voltage.
11 more elements
Dependencies are inferred from the claim text.