KR20050067618A - Pwm 컨버터의 전원위상 검출장치 - Google Patents
Pwm 컨버터의 전원위상 검출장치 Download PDFInfo
- Publication number
- KR20050067618A KR20050067618A KR1020030098609A KR20030098609A KR20050067618A KR 20050067618 A KR20050067618 A KR 20050067618A KR 1020030098609 A KR1020030098609 A KR 1020030098609A KR 20030098609 A KR20030098609 A KR 20030098609A KR 20050067618 A KR20050067618 A KR 20050067618A
- Authority
- KR
- South Korea
- Prior art keywords
- clock signal
- counter
- zero crossing
- power
- frequency
- Prior art date
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- 238000001514 detection method Methods 0.000 claims abstract description 33
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
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- Rectifiers (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims (2)
- PWM 컨버터로 입력되는 입력 전원의 제로 크로싱(zero crossing) 상태를 검출하는 제로크로싱검출부;일정 클럭신호를 카운트하는 카운터;상기 제로크로싱검출부에서 제로 크로싱 상태가 검출되면, 일정 기준값과 상기 카운터 값의 차이에 따라 주파수가 결정되는 클럭신호를 생성하여 상기 카운터의 클럭신호로 인가하는 클럭신호생성부; 및상기 카운터값을 이용하여 상기 입력 전원의 위상각을 계산하는 전원위상각계산부를 포함하는 것을 특징으로 하는 PWM 컨버터의 전원위상 검출장치.
- 제 1 항에 있어서, 상기 클럭신호생성부는상기 제로크로싱검출부에서 제로 크로싱 상태가 검출되면, 이 때의 카운터 값과 상기 기준값을 비교하여 위상오차를 검출하는 위상오차검출부;상기 위상오차에 따라 일정 제어신호를 생성하는 PI 제어부; 및상기 PI 제어부에서 생성한 제어신호에 따라 일정 주파수의 클럭신호를 생성하는 펄스발생부를 포함하는 것을 특징으로 하는 PWM 컨버터의 전원위상 검출장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030098609A KR100581095B1 (ko) | 2003-12-29 | 2003-12-29 | Pwm 컨버터의 전원위상 검출장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030098609A KR100581095B1 (ko) | 2003-12-29 | 2003-12-29 | Pwm 컨버터의 전원위상 검출장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050067618A true KR20050067618A (ko) | 2005-07-05 |
KR100581095B1 KR100581095B1 (ko) | 2006-05-17 |
Family
ID=37258255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020030098609A KR100581095B1 (ko) | 2003-12-29 | 2003-12-29 | Pwm 컨버터의 전원위상 검출장치 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100581095B1 (ko) |
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2003
- 2003-12-29 KR KR1020030098609A patent/KR100581095B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR100581095B1 (ko) | 2006-05-17 |
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