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Title:
N-TYPE MOS HIGH-SIDE DRIVER CIRCUIT HAVING CONTROLLABLE SLEW RATE
Document Type and Number:
WIPO Patent Application WO/2021/232579
Kind Code:
A1
Abstract:
Disclosed is an N-type MOS high-side driver circuit that has a controllable slew rate, which belongs to the technical field of driver circuits and which uses a controllable current for the charging and discharging of the gate of a switch. When charging and discharging are complete, the gate undergoes strong opening or strong closing so as to prevent voltage perturbations in the gate; all MNxs are NMOS devices isolated from a substrate, M0 is a high-side N-type MOS switch requiring driving, and VHIGH is a driving power supply. MN0-MN3 at the leftmost side are provided with a bias circuit, M1 is a source-level follower structure which limits the charging voltage of the gate of the M0, which achieves the functions of high-side driving and controllable slew rate.

Inventors:
WANG, Fei (No.136 Kaiyuan Avenue Guangzhou Development Zon, Guangzhou Guangdong 0, CN)
WANG, Yun (No.136 Kaiyuan Avenue Guangzhou Development Zon, Guangzhou Guangdong 0, CN)
ZHENG, Kunkun (No.136 Kaiyuan Avenue Guangzhou Development Zon, Guangzhou Guangdong 0, CN)
HAO, Bingxian (No.136 Kaiyuan Avenue Guangzhou Development Zon, Guangzhou Guangdong 0, CN)
REN, Guanghui (No.136 Kaiyuan Avenue Guangzhou Development Zon, Guangzhou Guangdong 0, CN)
XUE, Jing (No.136 Kaiyuan Avenue Guangzhou Development Zon, Guangzhou Guangdong 0, CN)
WANG, Guilei (No.136 Kaiyuan Avenue Guangzhou Development Zon, Guangzhou Guangdong 0, CN)
RADAMSON, Henry Homayoun (No.136 Kaiyuan Avenue Guangzhou Development Zon, Guangzhou Guangdong 0, CN)
Application Number:
PCT/CN2020/103960
Publication Date:
November 25, 2021
Filing Date:
July 24, 2020
Export Citation:
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Assignee:
GUANGDONG GREATER BAY AREA INSTITUTE OF INTEGRATED CIRCUIT AND SYSTEM (No.136 Kaiyuan Avenue Guangzhou Development Zon, Guangzhou Guangdong 0, CN)
International Classes:
H03K3/356
Attorney, Agent or Firm:
BEIJING IP PATENT AGENCY CO., LTD. (Floor 16 Building No. 1, No. 120, Zhushikou West Road, Xicheng District, Beijing 0, CN)
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