KR970060704A - Ultrasonic oscillation control circuit - Google Patents
Ultrasonic oscillation control circuit Download PDFInfo
- Publication number
- KR970060704A KR970060704A KR1019960001104A KR19960001104A KR970060704A KR 970060704 A KR970060704 A KR 970060704A KR 1019960001104 A KR1019960001104 A KR 1019960001104A KR 19960001104 A KR19960001104 A KR 19960001104A KR 970060704 A KR970060704 A KR 970060704A
- Authority
- KR
- South Korea
- Prior art keywords
- phase
- voltage
- square wave
- unit
- sensing
- Prior art date
Links
- 230000010355 oscillation Effects 0.000 title claims abstract description 10
- 239000002184 metal Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0215—Driving circuits for generating pulses, e.g. bursts of oscillations, envelopes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
초음파 금속용접기에 적용되는 초음파 발진 제어회로를 공개한다. 그 회로는 입력 전압의 위상에 대응되는 구형파를 발생하는 전압 위상 감지 및 구형파 발생부; 입력 전류의 위상에 대응되는 구형파를 발생하는 전류위상 감지 및 구형파 발생부; 위상차 신호를 DC 전압으로 변환하기 위한 저역 통과 필터; 상기 저역 통과 필터의 출력 DC전압과 소정 최대 및 최소 주파수에 대응되는 DC전압과 비교하는 주파수 비교부; 상기 주파수비교부의 출력에 따라 대응되는 전압 제어 발진 신호를 상기 위상 동기 루프로 선택하는 스위칭부; 및 상기 전압 위상 감지 및 구형파 발생부와 상기 전류 위상 감지 및 구형파 발생부의 각 구형파를 입력받아 비교 연산함에 의해 위상차에 대응되는 상기 위상차 신호를 발생하고, 상기 전압 제어 발진 신호에 따라 대응되는 구형파를 발생하는 위상 동기 루프를 구비한 것을 특징으로 한다. 본 발명에 의하면, 공진점을 벗어나는 초음파 발진의 발생을 억제함에 의해 전력 손실을 방지하고, 전압 및 전류의 위상을 동일하게 유지함에 의해 최대의 출력 효율을 유지할 수 있다.Discloses an ultrasonic oscillation control circuit applied to an ultrasonic metal welder. The circuit includes: a voltage phase sensing and square wave generating unit for generating a square wave corresponding to a phase of an input voltage; A current phase sensing and square wave generating unit for generating a square wave corresponding to a phase of an input current; A low-pass filter for converting the phase difference signal into a DC voltage; A frequency comparator for comparing the output DC voltage of the low-pass filter with a DC voltage corresponding to a predetermined maximum and minimum frequency; A switching unit for selecting a voltage controlled oscillation signal corresponding to an output of the frequency comparator as the phase locked loop; And generating the phase difference signal corresponding to the phase difference by performing the comparison operation of the voltage phase sensing and square wave generating unit and the square wave of the current phase sensing and the square wave generating unit to generate a corresponding square wave according to the voltage control oscillation signal, And a phase-locked loop for outputting the phase-locked loop. According to the present invention, it is possible to prevent power loss by suppressing the generation of ultrasonic oscillation deviating from the resonance point, and to maintain the maximum output efficiency by keeping the voltage and current phases the same.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제1도는 본 발명에 따른 초음파 발진 제어회로를 설명하기 위한 구성 블럭도.FIG. 1 is a block diagram for explaining an ultrasonic oscillation control circuit according to the present invention; FIG.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960001104A KR0155943B1 (en) | 1996-01-19 | 1996-01-19 | Supersonic oscillating control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960001104A KR0155943B1 (en) | 1996-01-19 | 1996-01-19 | Supersonic oscillating control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970060704A true KR970060704A (en) | 1997-08-12 |
KR0155943B1 KR0155943B1 (en) | 1998-12-15 |
Family
ID=19449744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960001104A KR0155943B1 (en) | 1996-01-19 | 1996-01-19 | Supersonic oscillating control circuit |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0155943B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100937366B1 (en) * | 2009-04-22 | 2010-01-19 | 세메스 주식회사 | Oscillation control apparatus of scriber using ultrasonic transducer |
-
1996
- 1996-01-19 KR KR1019960001104A patent/KR0155943B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0155943B1 (en) | 1998-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100334048B1 (en) | Inverter control device | |
KR970055156A (en) | Resonant Converter Control System | |
US4309675A (en) | Control circuit for providing a synchronized drive signal to an oscillating system | |
KR910005546A (en) | Control device of pulse width modulated boost converter | |
KR970019089A (en) | Clock generator unilizing phase locked loop circuit | |
KR970060704A (en) | Ultrasonic oscillation control circuit | |
JPH0761013B2 (en) | Cesium atomic oscillator | |
JP4512721B2 (en) | Oscillation control circuit of multi-frequency ultrasonic cleaner | |
US7911283B1 (en) | Low noise oscillator and method | |
JPH06196940A (en) | Pulse width modulating and amplifying circuit | |
KR20020014652A (en) | PWM Circuit Irrespective of Voltage Variation of Power Supply | |
KR960027247A (en) | Oscillation circuit | |
JP2603532Y2 (en) | Exciter for AC generator | |
KR940005282Y1 (en) | Arrangement for starting sensorless motor | |
SU1624113A1 (en) | Device for power supply of magnetostriction vibration exciter of drilling rig | |
JPS63110914A (en) | Method and apparatus for supplying high voltage to impedance type load | |
KR960015575B1 (en) | Circuit for generating fm carrier wave signal | |
JP2001319767A (en) | High-frequency heating device | |
SU758097A1 (en) | Ac voltage stabilizer | |
JPH03250814A (en) | Frequency synthesizer | |
JP3461647B2 (en) | Drive device for piezoelectric transformer | |
RU2059282C1 (en) | Apparatus for controlling electromagnetic vibrator | |
KR960001941A (en) | Constant voltage generator circuit and method | |
JPS59198881A (en) | Control system of inverter | |
JPH06255740A (en) | Device for controlling drive of vibrating feeder |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20050629 Year of fee payment: 8 |
|
LAPS | Lapse due to unpaid annual fee |