Title:
ADJUSTABLE CIRCUIT DEVICE AND VOLTAGE MEASURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/032754
Kind Code:
A1
Abstract:
An adjustable circuit device, comprising: a first adjustment circuit (5), a second adjustment circuit (6), a signal conditioner (2), an analog-to-digital converter (3) and a processor (4). The processor (4) receives an output signal converted by the signal conditioner (2) and the analog-to-digital converter (3), analyzes the digital signal according to preset rules, and sends, according to the analysis results, control signals to control the on and off states of each switch in the first adjustment circuit (5), so as to achieve the incorporation or cut off of an adjustable capacitor, thereby adjusting the equivalent capacitance of the first adjustment circuit (5); and to control the tap-position connection state of the multiplexer in the second adjustment circuit (6), so as to change the position of a tap of a connected voltage divider resistor network, thereby adjusting the voltage across the fixed capacitor, such that the fixed capacitor is simulated to be an adjustable capacitor. The invention achieves the automatic adjustment of the voltage divider capacitor by means of program control, reducing the need for human input and greatly improving work efficiency.
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Inventors:
ZHOU LIGONG (CN)
Application Number:
PCT/CN2017/076396
Publication Date:
February 22, 2018
Filing Date:
March 13, 2017
Export Citation:
Assignee:
GUANGZHOU ZHIYUAN ELECTRONICS CO LTD (CN)
International Classes:
G01R15/04; G01R19/00
Foreign References:
| CN106353549A | 2017-01-25 | |||
| CN102901864A | 2013-01-30 | |||
| CN101762733A | 2010-06-30 | |||
| CN102590573A | 2012-07-18 | |||
| CN105008936A | 2015-10-28 | |||
| US20050036344A1 | 2005-02-17 | |||
| GB2273365A | 1994-06-15 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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