KR960009400A - Pulse Width Modulation (PWM) Generation Circuit - Google Patents

Pulse Width Modulation (PWM) Generation Circuit Download PDF

Info

Publication number
KR960009400A
KR960009400A KR1019940020223A KR19940020223A KR960009400A KR 960009400 A KR960009400 A KR 960009400A KR 1019940020223 A KR1019940020223 A KR 1019940020223A KR 19940020223 A KR19940020223 A KR 19940020223A KR 960009400 A KR960009400 A KR 960009400A
Authority
KR
South Korea
Prior art keywords
pwm
voltage
control unit
variable
power supply
Prior art date
Application number
KR1019940020223A
Other languages
Korean (ko)
Other versions
KR0130605B1 (en
Inventor
우상언
Original Assignee
배순훈
대우전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940020223A priority Critical patent/KR0130605B1/en
Publication of KR960009400A publication Critical patent/KR960009400A/en
Application granted granted Critical
Publication of KR0130605B1 publication Critical patent/KR0130605B1/en

Links

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/156—Arrangements in which a continuous pulse train is transformed into a train having a desired pattern
    • H03K5/1565—Arrangements in which a continuous pulse train is transformed into a train having a desired pattern the output pulses having a constant duty cycle

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Dc-Dc Converters (AREA)
  • Details Of Television Scanning (AREA)

Abstract

본 발명은 펄스 폭 변조 방식에 의해 전원변동을 요구하는 회로에 있어서, 마이컴의 F/V 출력단자의 전압을 이용하여 단안정 멀티바이브레이터에 인가되는 수평동기신호의 듀티폭을 변조시켜 PWM을 발생시킬 수 있게 한 PWM 발생회로에 관한 것으로, 마이컴의 F/V 전압을 이용하여 실제로 변화된 가변전원 B피드백과 F/V전압전압에 의한 차동입력 감산회로를 이용하여 F/V전압변동에 의한 PWM 펄스 듀티변화를 최소화함으로써 가변전원의 변동에 대한 오차를 최소화시키는 F/V에 의한 직류 제어부와, 플라이백 펄스에 비례하여 전수평모드에 대한 수평사이즈 제어를 수행하는 가변 제어부와, 상기 DC 제어부와 가변 제어부의 출력을 입력받아 PWM 펄스를 발생시키는 PWM 발생부를 포함하여 이루어진다.According to the present invention, in a circuit requiring power supply variation by a pulse width modulation method, PWM is generated by modulating the duty width of a horizontal synchronous signal applied to a monostable multivibrator using the voltage of the microcomputer's F / V output terminal. The PWM generating circuit which enables the PWM pulse duty by the F / V voltage fluctuation using the differential input subtraction circuit by the variable power supply B feedback and the F / V voltage voltage actually changed using the F / V voltage of the microcomputer. DC control unit by F / V which minimizes the variation of the variable power supply by minimizing the change, a variable control unit which performs horizontal size control for all horizontal modes in proportion to the flyback pulse, the DC control unit and the variable control unit It includes a PWM generator for receiving the output of the PWM pulses.

Description

펄스 폭 변조(PWM)발생회로Pulse Width Modulation (PWM) Generation Circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 펄스 폭 변조 발생회로의 블록도.2 is a block diagram of a pulse width modulation generating circuit according to the present invention.

제3도는 본 발명의 실시예를 나타낸 회로도.3 is a circuit diagram showing an embodiment of the present invention.

Claims (1)

마이컴의 F/V 전압을 이용하여 실제로 변화된 가변전원 B피드백과 F/V전압전압에 의한 차동입력 감산회로를 이용하여 F/V전압변동에 의한 PWM 펄스 듀티변화를 최소화함으로써 가변전원의 변동에 대한 오차를 최소화시키는 F/V에 의한 직류 제어부와, 플라이백 펄스에 비례하여 전수평모드에 대한 수평사이즈 제어를 수행하는 가변 제어부와, 상기 DC 제어부와 가변 제어부의 출력을 입력받아 PWM 펄스를 발생시키는 PWM 발생부를 포함하여 구성한 것을 특징으로 하는 펄스폭 변조 발생회로.The variable power supply B feedback actually changed using the microcomputer's F / V voltage and the differential input subtraction circuit by the F / V voltage voltage are used to minimize the PWM pulse duty change caused by the F / V voltage change. DC control by F / V to minimize the error, a variable control for performing a horizontal size control for the horizontal mode in proportion to the flyback pulse, and the output of the DC control and the variable control to generate a PWM pulse A pulse width modulation generator circuit comprising a PWM generator. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940020223A 1994-08-17 1994-08-17 Pulse width modulator KR0130605B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940020223A KR0130605B1 (en) 1994-08-17 1994-08-17 Pulse width modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940020223A KR0130605B1 (en) 1994-08-17 1994-08-17 Pulse width modulator

Publications (2)

Publication Number Publication Date
KR960009400A true KR960009400A (en) 1996-03-22
KR0130605B1 KR0130605B1 (en) 1998-10-01

Family

ID=19390488

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940020223A KR0130605B1 (en) 1994-08-17 1994-08-17 Pulse width modulator

Country Status (1)

Country Link
KR (1) KR0130605B1 (en)

Also Published As

Publication number Publication date
KR0130605B1 (en) 1998-10-01

Similar Documents

Publication Publication Date Title
KR910015098A (en) Power supply with improved power factor correction
KR950021481A (en) Internal step-down power circuit
KR960706222A (en) Switch-Mode Power Supplies for Bridged Linear Amplifiers
KR940006330A (en) Control device of power converter for converting DC voltage into AC phase voltage with three potentials of positive, zero and negative voltage and control device of electric vehicle using the same
KR930018824A (en) Control device of power converter
KR960012679A (en) PWM converter
FI952639A (en) Low-noise operation of a machine fed by a pulse inverter
KR900019322A (en) Control method of PWM converter device
ATE217204T1 (en) IONTOPHORETIC SYSTEM
CA2143367A1 (en) System and Method for Controlling DC to AC Voltage Inverter
KR970068111A (en) PWM controller of power converter
KR870006769A (en) Pulse fault circuit
KR880009484A (en) Method and circuit for generating triangular wave voltage
KR960009400A (en) Pulse Width Modulation (PWM) Generation Circuit
KR970055431A (en) Soft-Start Pulse Width Modulation Integrated Circuits
DE59705048D1 (en) Frequency converter for operating an asynchronous three-phase motor
KR960019947A (en) Output Compensation Circuit for Input Variation of Inverter
KR910008924A (en) Output voltage supply circuit and variable voltage generation method
SU712816A1 (en) Dc voltage pulsed stabilizer
KR970072611A (en) A plurality of constant voltage source generators
KR970012064A (en) Current source
SU941968A1 (en) Two-cycle converter pulse stabilization method
KR950009097A (en) Switching element driving power supply of inverter cooker
KR880013298A (en) Switching mode power controller
JPH07108221A (en) Ultrasonic generator

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20021031

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee