Title:
AUTO-CALIBRATION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2024/063224
Kind Code:
A1
Abstract:
The present application relates to an auto-calibration circuit comprising: an oscillator unit; a PWM generator unit for receiving a serial data input; a frequency trimming unit for maintaining the output frequency of the oscillator unit to be constant; an output current driving unit driven for each channel by means of the PWM generator unit; and a channel output port having a constant current synchronized by means of the output current driving unit, wherein the frequency trimming unit compares the output frequency of the oscillator unit to the frequency included in a serial data input signal so as to output a value corresponding to the comparison result, and the comparison is performed after the output frequency of the oscillator unit is lowered.
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Inventors:
CHO GEA OK (KR)
KIM YONG GEUN (KR)
KIM MIN SEON (KR)
KIM YONG GEUN (KR)
KIM MIN SEON (KR)
Application Number:
PCT/KR2023/001285
Publication Date:
March 28, 2024
Filing Date:
January 27, 2023
Export Citation:
Assignee:
GLOBAL TECH CO LTD (KR)
International Classes:
G05F1/565; H03B5/12; H03K7/08; H05B45/345
Foreign References:
| JP2013102218A | 2013-05-23 | |||
| KR20220085971A | 2022-06-23 | |||
| KR20110060460A | 2011-06-08 | |||
| KR20160029593A | 2016-03-15 | |||
| KR20120072734A | 2012-07-04 |
Attorney, Agent or Firm:
LEE, Cheol Hee (KR)
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