The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2025
Filed:
Aug. 18, 2021
SG Micro Corp, Beijing, CN;
Lei Tan, Beijing, CN;
SG MICRO CORP, Beijing, CN;
Abstract
Disclosed is a controller and a control method of a thermoelectric cooler-heater device. The controller includes a switching power supply coupled to the thermoelectric cooler-heater device to provide a first driving current; and a constant-current constant-voltage power supply coupled to the thermoelectric cooler-heater device to provide a second driving current. According to a temperature detection signal, one of the switching power supply and the constant-current constant-voltage power supply operates, the first driving current is a continuous driving current flowing from an anode end to a cathode end of the thermoelectric cooler-heater device, the second driving current is a pulse driving current flowing from the cathode end to the anode end. In cooling mode, the controller uses the switching power supply to provide continuous output to improve monotonicity; in heating mode, the controller uses the constant-current constant-voltage power supply to provide pulse output to improve circuit efficiency and provide protection function.