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Patent Searching and Data


Title:
CAPACITOR ARRAY CIRCUIT, CHARGING AND DISCHARGING CIRCUIT, AND RC OSCILLATION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2022/047673
Kind Code:
A1
Abstract:
Disclosed in the present application is a capacitor array circuit, comprising N capacitors and N MOS transistors corresponding one to one to the N capacitors, a drain of each MOS transistor is connected to one end of a corresponding capacitor by means of a different metal line, a source of each MOS transistor is grounded, and a gate of each MOS transistor is used to receive a control signal to respectively control the on and off of each MOS transistor. The other ends of the N capacitors are connected to a common terminal. The capacitance value Cn-1 of an (n-1)th capacitor among the N capacitors is a times the capacitance value Cn of an nth capacitor. The sum of the on-resistance of an (n-1)th MOS transistor among the N MOS transistors and the resistance of a metal line between the (n-1)th capacitor and the (n-1)th MOS transistor is a times the sum of the on-resistance of an nth MOS transistor and the resistance of a metal line between the nth capacitor and the nth MOS transistor.

Inventors:
YANG JIANG (CN)
HUA CHAO (CN)
LING QIUCHAN (CN)
Application Number:
PCT/CN2020/113056
Publication Date:
March 10, 2022
Filing Date:
September 02, 2020
Export Citation:
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Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
H03B5/12
Foreign References:
CN103873048A2014-06-18
CN109525197A2019-03-26
CN110995161A2020-04-10
US20070285185A12007-12-13
CN106796259A2017-05-31
Other References:
See also references of EP 4024702A4
Attorney, Agent or Firm:
UNI-INTEL PATENT AND TRADEMARK LAW FIRM (CN)
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