Title:
CURRENT DETECTION CIRCUIT FOR MONITORING CURRENT SOURCE, AND INTEGRATED CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2022/193881
Kind Code:
A1
Abstract:
A current detection circuit (300) for monitoring a current source (301), and an integrated circuit. The current detection circuit (300) comprises: a sensing resistor (Rsense), which is connected at one end of the current source (301); and a shunting unit (310), which is connected to the sensing resistor (Rsense) in parallel, wherein when a sensing voltage (Vsense) of the sensing resistor (Rsense) exceeds a first predetermined voltage (Vth1), the shunting unit (310) is started to keep the sensing voltage (Vsense) constant. The current detection circuit (300) can effectively and accurately detect the current of the current source (301), can detect relatively small current, and can also allow for a relatively small voltage drop when a large current flows through. In addition, the current detection circuit also has the beneficial effects of being simple in terms of structure and easy to implement.
Inventors:
VAN DONGEN MARIJN (NL)
SCHOLTENS PETER (NL)
SU ZHAOMING (CN)
SCHOLTENS PETER (NL)
SU ZHAOMING (CN)
Application Number:
PCT/CN2022/076004
Publication Date:
September 22, 2022
Filing Date:
February 11, 2022
Export Citation:
Assignee:
DATANG NXP SEMICONDUCTORS XUZHOU CO LTD (CN)
International Classes:
G01R15/00
Foreign References:
| CN110632355A | 2019-12-31 | |||
| CN110907790A | 2020-03-24 | |||
| JP2020129867A | 2020-08-27 | |||
| CN109039064A | 2018-12-18 | |||
| CN1936807A | 2007-03-28 | |||
| CN109975590A | 2019-07-05 | |||
| JP2000235424A | 2000-08-29 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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