Title:
LEVEL CONVERSION CIRCUIT AND FINGERPRINT RECOGNITION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/188017
Kind Code:
A1
Abstract:
A level conversion circuit and a fingerprint recognition device. The level conversion circuit comprises: a complementary signal generating unit (10), a high voltage pulse generating unit (20), and a converting and latching unit (30). The high voltage pulse generating unit (20) is connected to the complementary signal generating unit (10) and to the converting and latching unit (30). The complementary signal generating unit (10) is used for receiving a target signal in a low voltage domain and outputting a complementary signal of the target signal and the target signal. The high voltage pulse generating unit (20) is used for generating a high voltage pulse on the basis of the target signal and of the complementary signal. The converting and latching unit (30) is used for converting the target signal from the low voltage domain to a high voltage domain when the high voltage pulse is generated and is used for latching and outputting the target signal in the high voltage domain. The level conversion circuit reduces static power consumption while transmitting the target signal at a high speed.
Inventors:
LI BO (CN)
Application Number:
PCT/CN2017/080421
Publication Date:
October 18, 2018
Filing Date:
April 13, 2017
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
H03K19/0175
Foreign References:
| CN101488742A | 2009-07-22 | |||
| CN103178829A | 2013-06-26 | |||
| CN101312342A | 2008-11-26 | |||
| US20120169395A1 | 2012-07-05 |
Other References:
See also references of EP 3435544A4
Attorney, Agent or Firm:
SHANGHAI CHENHAO INTELLECTUAL PROPERTY LAW FIRM GENERAL PARTNERSHIP (CN)
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