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Charge pump system

A charge pump and electrical connection technology, which is applied in the electronic field, can solve problems such as redundant clock signals, and achieve the effect of avoiding the risk of overvoltage and improving performance

Active Publication Date: 2020-11-10
GIGADEVICE SEMICON (BEIJING) INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An embodiment of the present invention provides a charge pump system to solve the problem of redundant clock signals in the charge pump system, avoid the risk of overvoltage caused by redundant clock signals to the system, and improve the performance of the charge pump system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 2 It is a structural block diagram of a charge pump system provided in Embodiment 1 of the present invention. This embodiment is applicable to the case of improving the clock signal of the charge pump system. Refer to figure 2 , the charge pump system specifically includes:

[0025] Comparator 100, first flip-flop 200, oscillator 300, first gate circuit 400, second flip-flop 500, selector 600, first inverter 700, charge pump 800 and voltage divider circuit 900;

[0026] The comparator 100 comprises a first input terminal 101, a second input terminal 102 and an output terminal 103, the charge pump 800 comprises a clock signal input terminal 801 and an output terminal 802, and the output terminal 802 of the charge pump 800 is electrically connected to the comparator through a voltage divider circuit 900 The first input terminal 101 of the comparator 100 and the second input terminal 102 of the comparator 100 are used to input the reference voltage VREF;

[0027...

Embodiment 2

[0044] Figure 4 It is a structural block diagram of a charge pump system provided in Embodiment 2 of the present invention. This embodiment is applicable to the case of improving the clock signal of the charge pump system. Optionally, refer to Figure 4 , on the basis of the above technical solution, the second trigger 500 includes:

[0045] Two second trigger units (second trigger unit 510 and second trigger unit 520) and a second inverter 530;

[0046] Each second trigger unit includes a first input terminal, a second input terminal, a first output terminal and a second output terminal, and the first input terminal 511 of the first second trigger unit 510 is used as the first input terminal of the second trigger unit 500. Input terminal, the first input terminal 511 of the first second trigger unit 510 is electrically connected to the first output terminal 523 of the second second trigger unit 520, and the second input terminal 512 of the first second trigger unit 510 is p...

Embodiment 3

[0094] Image 6 It is a structural block diagram of a charge pump system provided in Embodiment 3 of the present invention. This embodiment is applicable to the case of improving the clock signal of the charge pump system. Optionally, refer to Image 6 , on the basis of the above technical solution, the oscillator 300 includes: a third switching tube 310, a delay module 320 and a second gate circuit 330;

[0095]The delay module 320 includes an input end 321 and an output end 322, the second gate circuit 330 includes a first input end 331, a second input end 332 and an output end 333, the input end 321 of the delay module 320 and the third switching tube 310 The second terminal 313 is electrically connected, and the output terminal 322 of the delay module 320 is electrically connected to the first input terminal 331 of the second gate circuit 330;

[0096] The control terminal 311 of the third switching tube 310 is used as the input terminal of the oscillator 300, and the fir...

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PUM

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Abstract

The embodiment of the invention discloses a charge pump system. The charge pump system comprises a comparator, a first trigger, an oscillator, a first gate circuit, a second trigger, a selector, a first inverter, a charge pump and a voltage division circuit. The output end of the first gate circuit is electrically connected with the second input end of the second trigger; the first input end of the second trigger is electrically connected with the first output end of the second trigger, and the second output end of the second trigger is electrically connected with the control end of the selector; the first input end of the selector is electrically connected with the output end of the oscillator, the second input end of the selector is electrically connected with the output end of the firstinverter, and the output end of the selector is electrically connected with the clock signal input end of the charge pump. According to the charge pump system provided by the embodiment of the invention, the problem that redundant clock signals appear in the charge pump system is solved, the overvoltage risk brought to the system by the redundant clock signals is avoided, and the performance of the charge pump system is improved.

Description

technical field [0001] Embodiments of the present invention relate to electronic technology, and in particular to a charge pump system. Background technique [0002] A charge pump is a type of electrical energy converter widely used in systems that require a power source, such as cellular phones, pagers, Bluetooth systems, and portable electronic devices. [0003] The charge pump system generally realizes electric energy conversion through switch arrays, oscillators, logic circuits, and comparison controllers. required output power. [0004] During the working process of the charge pump system, redundant driving signals will appear, which will bring overvoltage risk to the system and affect the performance of the charge pump system. Contents of the invention [0005] An embodiment of the present invention provides a charge pump system to solve the problem of redundant clock signals in the charge pump system, avoid the overvoltage risk brought by the redundant clock signa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/32H02M3/07H03K3/356H03K5/01H03K17/51
CPCH02M1/32H02M3/07H03K3/356104H03K5/01H03K17/51H02M1/0041
Inventor 孙锋锋刘亚平刘铭
Owner GIGADEVICE SEMICON (BEIJING) INC