Title:
CONTROL APPARATUS AND METHOD FOR LASER APPARATUS, AND LASER MEASURING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/134531
Kind Code:
A1
Abstract:
The present disclosure relates to a control apparatus for controlling the temperature of a laser device. The control apparatus comprises: a pulse width modulation signal generator configured to generate a pulse width modulation signal; a temperature acquisition circuit configured to acquire the temperature of a laser device and convert same into a measurement voltage; a voltage comparator configured to compare the acquired measurement voltage associated with the temperature of the laser device with a temperature threshold voltage, and output a comparison result signal; and a logic circuit configured to generate, on the basis of the pulse width modulation signal and the comparison result signal, a driving signal so as to drive the laser device.
Inventors:
ZHU CHAO (CN)
SHI XIN (CN)
XING DAVID (US)
SHI XIN (CN)
XING DAVID (US)
Application Number:
PCT/CN2021/104703
Publication Date:
June 30, 2022
Filing Date:
July 06, 2021
Export Citation:
Assignee:
NORTHWEST INSTR INC (US)
NORTHWEST INSTR SHANGHAI CO LTD (CN)
NORTHWEST INSTR SHANGHAI CO LTD (CN)
International Classes:
G05D23/24; H03K7/08; H03K19/21
Foreign References:
| CN112731989A | 2021-04-30 | |||
| CN107664496A | 2018-02-06 | |||
| CN209897312U | 2020-01-03 | |||
| CN110340516A | 2019-10-18 | |||
| CN103208736A | 2013-07-17 | |||
| US20060239316A1 | 2006-10-26 |
Attorney, Agent or Firm:
NTD UNIVATION INTELLECTUAL PROPERTY AGENCY LTD. (CN)
Download PDF: