Charge pump circuit and gate drive circuit
A technology of charge pump and circuit, which is applied in the direction of high-efficiency power electronic conversion, electrical components, and conversion equipment without intermediate conversion to AC, and can solve problems such as large power consumption
Inactive Publication Date: 2019-08-06
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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- Application Information
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Problems solved by technology
In the second phase cycle, the switches S2 and S3 are turned off and the switches S1 and S4 are turned on to provide a double boost voltage, and a higher voltage corresponds to greater power consumption
Method used
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[0038] In order to make the above and other objectives, features, and advantages of the present disclosure more comprehensible, preferred embodiments of the present disclosure will be exemplified below in detail with reference to the attached drawings. Furthermore, the direction terms mentioned in this disclosure, such as up, down, top, bottom, front, back, left, right, inside, outside, side layer, surrounding, center, horizontal, transverse, vertical, longitudinal, axial , radial direction, the uppermost layer or the lowermost layer, etc., are only directions for referring to the attached drawings. Therefore, the directional terms used are used to explain and understand the present disclosure, but not to limit the present disclosure.
[0039] In the figures, structurally similar units are denoted by the same reference numerals.
[0040] refer to figure 2 , the present disclosure provides a charge pump circuit 10, comprising: an input terminal V IN , an output terminal V ...
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The invention discloses a charge pump circuit and a gate drive circuit, which achieves an effect of reducing the power consumption. The charge pump circuit comprises a first single-pole double-throw switch, a second single-pole double-throw switch, a third single-pole double-throw switch, a fourth single-pole double-throw switch, a first capacitor, a second capacitor, an input capacitor and an output capacitor, wherein one end of the first capacitor is electrically connected to a common electrode of the first single-pole double-throw switch, and the other end is electrically connected to a common electrode of the second single-pole double-throw switch; one end of the second capacitor is electrically connected to a common electrode of the third single-pole double-throw switch, and the otherend is electrically connected to a common electrode of the fourth single-pole double-throw switch; an input terminal is electrically connected to endpoints of the input capacitor, the first single-pole double-throw switch, the second single-pole double-throw switch and the fourth single-pole double-throw switch; an output terminal is electrically connected to endpoints of the output capacitor, the first single-pole double-throw switch and the third single-pole double-throw switch; the other endpoint of the second single-pole double-throw switch is electrically connected to the other endpointof the third single-pole double-throw switch; and the other endpoint of the fourth single-pole double-throw switch is electrically connected to the ground.
Description
[0001] 【Technical field】 [0002] The disclosure relates to the field of display technology, in particular to a charge pump circuit and a gate drive circuit. [0003] 【Background technique】 [0004] In mobile devices, such as mobile phones, in order to increase the standby time, etc., it is necessary to optimize the power consumption. Power consumption is generally divided into three parts, the power consumption of Panel EL / power consumption of DIC / power consumption of TIC. figure 1 Shown is a conventional charge pump circuit and its equivalent circuit. During the first phase period, the switches S2, S3 are turned on and the switches S1, S4 are turned off. During the second phase period, the switches S2 and S3 are turned off and the switches S1 and S4 are turned on to provide a double boost voltage, and a higher voltage corresponds to greater power consumption. [0005] Therefore, there is a need to provide a charge pump circuit and a gate drive circuit to solve the problems ...
Claims
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Login to View More IPC IPC(8): H02M3/07H02M1/088
CPCH02M1/088H02M3/07H02M1/0054Y02B70/10
Inventor 蔡昆岳
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD