Title:
CONTROLLER AND CONTROL METHOD FOR THERMOELECTRICALLY COOLED HEATER
Document Type and Number:
WIPO Patent Application WO/2022/048445
Kind Code:
A1
Abstract:
Disclosed by the present application are a controller and control method for a thermoelectrically cooled heater. The controller comprises: a switching power supply, connected to said thermoelectrically cooled heater to provide a first drive current; and a constant-current constant-voltage power supply, connected to said thermoelectrically cooled heater to provide a second drive current, wherein, according to a temperature detection signal, one of said switching power supply and said constant-current constant-voltage power supply operates; said first drive current is a continuous drive current and flows from the positive end of the thermoelectrically cooled heater to the negative end, and said second drive current is a pulse drive current and flows from the positive end of the thermoelectrically cooled heater to the negative end; the controller uses the switching power supply to provide a continuous output in cooled mode to improve monotonicity, and the constant-current constant-voltage power supply is used to provide pulsed output in the heating mode to improve circuit efficiency and provide protection.
Inventors:
TAN LEI (CN)
Application Number:
PCT/CN2021/113309
Publication Date:
March 10, 2022
Filing Date:
August 18, 2021
Export Citation:
Assignee:
SG MICRO CORP (CN)
International Classes:
G05D23/24
Foreign References:
| CN109656281A | 2019-04-19 | |||
| CN104614674A | 2015-05-13 | |||
| CN202424532U | 2012-09-05 | |||
| US3815668A | 1974-06-11 | |||
| US5088098A | 1992-02-11 | |||
| US6089310A | 2000-07-18 | |||
| CN202406025U | 2012-08-29 |
Attorney, Agent or Firm:
TOWIN INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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