Title:
DEVICE FOR DRIVING SEMICONDUCTOR SWITCH
Document Type and Number:
WIPO Patent Application WO/2019/031699
Kind Code:
A1
Abstract:
The present invention relates to a technology for driving a semiconductor switch element and, particularly, to a technology for enabling a relay circuit to be easily replaced by a semiconductor switch and a driving device to be implemented by one semiconductor element (one chip). The present invention comprises: a semiconductor switch, which performs a switching operation by means of a gate driving voltage so as to transmit, to a load connected to a second switch terminal, main power connected to a first switch terminal; a control signal generation unit, which detects a change in control signal input power so as to output a control signal according thereto, wherein the control signal is generated and outputted on the basis of a lower negative voltage between a negative voltage of the main power and a negative voltage of the control signal input power; a control signal detection unit, which detects the control signal so as to output a driving control signal according thereto; a gate driving voltage generation unit driven by means of the driving control signal so as to output the gate driving voltage (GDV); and an internal power generation unit, which receives the main power so as to generate a power source voltage required for the semiconductor switch, the control signal generation unit, the control signal detection unit, and the gate driving voltage generation unit when the semiconductor switch is in a turn-off state.
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Inventors:
CHO IN SUN (KR)
KIM JUNG HWAN (KR)
KIM JUNG HWAN (KR)
Application Number:
PCT/KR2018/006647
Publication Date:
February 14, 2019
Filing Date:
June 12, 2018
Export Citation:
Assignee:
ACMEX CO LTD (KR)
International Classes:
H03K17/16; H03K17/0412; H03K17/687
Foreign References:
| KR20030030452A | 2003-04-18 | |||
| JP2005151767A | 2005-06-09 | |||
| KR101467717B1 | 2014-12-01 | |||
| KR20110101076A | 2011-09-15 | |||
| KR20170009126A | 2017-01-25 |
Other References:
See also references of EP 3667916A4
None
None
Attorney, Agent or Firm:
LEE, Cheol Hee (KR)
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