Title:
CURRENT CONTROLLED CURRENT SOURCE AND LOAD CURRENT DRIVER INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2021/020703
Kind Code:
A1
Abstract:
According to an exemplary embodiment of the present disclosure, a load current driver may comprise: a current controlled current source for generating a load current that fluctuates according to a control current; and a control current generator for generating a control current, wherein the current controlled current source comprises: an operational amplifier having a non-inverting input for receiving a reference voltage; a transistor which has a control electrode connected to an output of the operational amplifier, and through which the load current passes; a source resistor which is connected to the transistor at a source node, and through which the load current passes; and a feedback resistor connected to the source node and an inverting input of the operational amplifier, wherein the control current flows to the source node through the feedback resistor.
Inventors:
JEONG DONG YOUL (KR)
Application Number:
PCT/KR2020/006350
Publication Date:
February 04, 2021
Filing Date:
May 14, 2020
Export Citation:
Assignee:
WELLANG CO LTD (KR)
International Classes:
G05F1/56; H05B44/00
Foreign References:
| KR20080087819A | 2008-10-01 | |||
| JP6308994B2 | 2018-04-11 | |||
| JP2009016460A | 2009-01-22 | |||
| KR20070085518A | 2007-08-27 | |||
| JP2011166724A | 2011-08-25 |
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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