Title:
DIRECT CURRENT TO DIRECT CURRENT CONSTANT VOLTAGE CONVERSION CIRCUIT AND METHOD
Document Type and Number:
WIPO Patent Application WO/2018/054078
Kind Code:
A1
Abstract:
A direct current to direct current constant voltage conversion circuit (1) and a method. The circuit comprises: a logic control and driving circuit (10); a voltage generating circuit (11) and a detection circuit (12) which are connected to the logic control and driving circuit, the detection circuit being connected to the voltage generating circuit and a power supply; and a signal generating circuit (13) and a charge/discharge switch (14) which are respectively connected to the logic control and driving circuit and the voltage generating circuit. The signal generating circuit is configured to perform a conversion on a previous charge/discharge voltage to generate a first modulation signal; the detection circuit is configured to detect the voltage value of the power supply and the current value of the voltage generating circuit, and generate a first logic signal according to the voltage value and the current value; the logic control and driving circuit is configured to change the state of the charge/discharge switch according to the first logic signal and the first modulation signal; the charge/discharge switch is configured to control the voltage generating circuit to perform charge/discharge operations; and the voltage generating circuit is configured to perform charge/discharge operations according to the state of the charge/discharge switch, and output a current charge/discharge voltage.
Inventors:
GE LIANG (CN)
Application Number:
PCT/CN2017/085231
Publication Date:
March 29, 2018
Filing Date:
May 19, 2017
Export Citation:
Assignee:
SANECHIPS TECH CO LTD (CN)
International Classes:
H02M3/158
Foreign References:
| TW556398B | 2003-10-01 | |||
| CN105958820A | 2016-09-21 | |||
| CN103947092A | 2014-07-23 | |||
| CN102323841A | 2012-01-18 | |||
| US6989997B2 | 2006-01-24 |
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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