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Low-power consumption and high-efficiency power control power management integrated circuit (PMIC) driving circuit

A drive circuit and power control technology, applied in the direction of electric lamp circuit layout, electric light source, light source, etc., can solve the problems of energy loss, efficiency reduction, heat generation, etc., and achieve the effect of preventing the penetration of peak current

Inactive Publication Date: 2012-03-14
张伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The size of the buffer is also required to be large enough. When the signal level is converted, the driver will cause a peak leakage that is several times larger than the normal current, resulting in energy loss, reduced efficiency, and heat generation, resulting in serious noise

Method used

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  • Low-power consumption and high-efficiency power control power management integrated circuit (PMIC) driving circuit
  • Low-power consumption and high-efficiency power control power management integrated circuit (PMIC) driving circuit
  • Low-power consumption and high-efficiency power control power management integrated circuit (PMIC) driving circuit

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Embodiment Construction

[0021] see Figure 1~3 , The present invention relates to a low-power consumption, high-efficiency power supply control PMIC drive circuit, the drive circuit includes a preset drive stage, a feedback drive stage and a final drive stage, the preset drive stage is composed of a number of buffers connected in series.

[0022] The feedback driving stage is composed of two routes, the first route consists of a NAND gate and several inverters in series, and the sum of the numbers of the NAND gate and the inverters is an even number (2N, N is a natural number), and the second route An inverter, a NAND gate, and several inverters are connected in series, and the sum of the NAND gate and all inverters on this path is an odd number (2N+1, N is a natural number); at the same time, the last one in the first path is inverted The input end of the inverter is connected with the input end of the NAND gate in the second path, and the input end of the last inverter in the second path is connect...

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Abstract

The invention relates to a low-power consumption and high-efficiency power control power management integrated circuit (PMIC) driving circuit. The driving circuit comprises a preset driving stage, a feedback driving stage and an ultimate driving stage, wherein a clock signal is divided into two signals after passing through the preset driving stage; one signal is input into the end G of a P-channel metal oxide semiconductor (PMOS) in the ultimate driving stage after passing through a first path of the feedback driving stage; the other signal is input into the end G of an N-channel metal oxide semiconductor (NMOS) in the ultimate driving stage after passing through a second path of the feedback driving stage; and signals are transmitted to a subsequent circuit after the end D of the PMOS in the ultimate driving stage and the end D of the NMOS in the ultimate driving stage are connected. The low-power consumption and high-efficiency power control PMIC driving circuit has the advantages of high efficiency and low power consumption.

Description

technical field [0001] The invention relates to a driving circuit, in particular to a low power consumption and high efficiency power control PMIC driving circuit. Background technique [0002] Energy saving and low carbon are the general trend of environmental protection. And LED emitter is the most outstanding example of clean energy application. With the rapid development of electronic technology, LED lamps, billboards, and display screens are replacing traditional light sources, and their growth is extremely rapid. The older generation of energy-saving lighting such as fluorescent lamps and fluorescent energy-saving lamps contain highly toxic heavy metal mercury, which not only pollutes the environment, but also harms human health. LED light source is not only energy-saving, but also without any pollution. It is the best choice for civil lighting source, has a bright future, and has been recognized worldwide. [0003] As LED light sources are more and more widely used...

Claims

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Application Information

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IPC IPC(8): H05B37/02
Inventor 张伟陈锋
Owner 张伟