Low-power and high-output voltage charge pump

A charge pump and high-output technology, which is applied to output power conversion devices, electrical components, and conversion equipment without intermediate conversion to AC. It can solve problems such as difficult bias voltage, and achieve adjustable output voltage and huge application space. , reliable performance

Active Publication Date: 2016-09-07
苏州昆泰芯微电子科技有限公司
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As integrated circuit technology continues to advance, supply voltages continue to shrink with typical dimensions, making it increasingly difficult to generate higher bias voltages

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-power and high-output voltage charge pump
  • Low-power and high-output voltage charge pump
  • Low-power and high-output voltage charge pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] like figure 1 As shown, a charge pump with low power consumption and high output voltage disclosed by the present invention includes a bias circuit, a digital-to-analog conversion circuit, a charge pump main circuit connected in sequence, and a digital I connected to the digital-to-analog conversion circuit. 2 C circuit, the digital-to-analog conversion circuit is based on the bandgap reference voltage vbg output by the bias circuit, and is simultaneously affected by the digital I 2 The input control of the C circuit outputs the analog voltage dac_out; the main circuit of the charge pump takes the analog voltage dac_out as the reference, and under the control of the sequential clock, generates the final high voltage through the multi-stage charge pump unit.

[0028] like figure 2 As shown, the main circuit of the charge pump includes a clock oscillator and several stages of charge pump units cascaded in sequence. 2 The input control of the C circuit, the analog volta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a low-power and high-output voltage charge pump. The output voltage amplitude can be digitally controlled. The circuit comprises a bias circuit, a digital-to-analogue conversion circuit, a charge pump main body circuit and a digital I<2>C circuit, which are sequentially connected, wherein the digital I<2>C circuit is connected with the digital-to-analogue conversion circuit; the charge pump main body circuit comprises a clock oscillator and charge pump units; the charge pump units are sequentially cascaded; an analogue voltage generated by the digital-to-analogue conversion circuit is simultaneously taken as a working voltage of the clock oscillator and an input voltage of the first stage of charge pump unit; the clock oscillator generates two groups of non-overlapping clocks; the first group of non-overlapping clocks are connected with a switch of each charge pump unit; and the second group of non-overlapping clocks are connected to terminals among various stages of charge pump units through capacitors C among the pumps respectively. By the low-power and high-output voltage charge pump, a relatively high output voltage is achieved; the output voltage is adjustable; the circuit structure is simplified; the power consumption is reduced; charges are transferred by creatively adopting a forward conduction mode of an MOS tube drain-substrate diode; and the stabilization time of a system is greatly reduced.

Description

technical field [0001] The invention relates to a charge pump, in particular to a charge pump with low power consumption and high output voltage. Background technique [0002] A charge pump is a circuit that generates a high DC voltage from a low voltage. Charge pumps are widely used in many circuit systems, for example: non-volatile memory requires higher voltage than conventional circuits, volatile memory requires high voltage to achieve faster operating speed, LCD screen requires high voltage to control contrast etc. [0003] In recent years, the rapid development of portable battery-driven consumer electronics has put forward higher requirements on the power consumption of the charge pump. As integrated circuit technology continues to advance, supply voltages continue to shrink with typical dimensions, making it increasingly difficult to generate higher bias voltages. Therefore, it is particularly important to design a charge pump circuit with low power consumption an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/07
CPCH02M3/07H02M1/0012H02M1/007
Inventor 武建峰
Owner 苏州昆泰芯微电子科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap