KR100684571B1 - Controll circuit for power source - Google Patents

Controll circuit for power source Download PDF

Info

Publication number
KR100684571B1
KR100684571B1 KR1020040017490A KR20040017490A KR100684571B1 KR 100684571 B1 KR100684571 B1 KR 100684571B1 KR 1020040017490 A KR1020040017490 A KR 1020040017490A KR 20040017490 A KR20040017490 A KR 20040017490A KR 100684571 B1 KR100684571 B1 KR 100684571B1
Authority
KR
South Korea
Prior art keywords
block
square wave
control
wave
resistor
Prior art date
Application number
KR1020040017490A
Other languages
Korean (ko)
Other versions
KR20050092327A (en
Inventor
공병성
공만혁
Original Assignee
공병성
공만혁
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 공병성, 공만혁 filed Critical 공병성
Priority to KR1020040017490A priority Critical patent/KR100684571B1/en
Publication of KR20050092327A publication Critical patent/KR20050092327A/en
Application granted granted Critical
Publication of KR100684571B1 publication Critical patent/KR100684571B1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/129—Polyhedrons, tetrapods or similar bodies, whether or not threaded on strings
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/14—Preformed blocks or slabs for forming essentially continuous surfaces; Arrangements thereof
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/025—Retaining or protecting walls made up of similar modular elements stacked without mortar
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0258—Retaining or protecting walls characterised by constructional features
    • E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
    • E04C1/39—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
    • E04C1/395—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra for claustra, fences, planting walls, e.g. sound-absorbing

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Conversion In General (AREA)
  • Control Of Electrical Variables (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

본 발명은 AC 전원의 제로 크로싱(zero crossing)부로부터 펄스를 발생시켜, AC 전원을 정(+), 부(-)의 반파를 별도로 제어하거나 정, 부 양파를 함께 제어하도록 하는 전원 제어회로를 제공한다.The present invention provides a power supply control circuit for generating a pulse from a zero crossing portion of the AC power supply to control the AC power separately from the positive and negative half waves or to control the positive and negative onions together. to provide.

본 발명의 특징적인 구성은 부하에 공급되는 교류전원(AC)을 제어하는 트라이액(TRIAC)의 게이트(G)에 트리거 전류제한저항(R1)을 연결하고, 상기 교류전원을 저항(R2)과 제너 다이오드(D1)로 구성되는 반파 클램핑부(블록D)에 의하여 반파정류하여 클램핑시키고, 상기 저항(R2)과 상기 제너다이오드(D1)의 접속점에 연결되는 구형파 변환회로부(블록A)가 상기 반파 클램핑부(블록D)에서 출력되는 클랭핑된 파형을 구형파로 변환시키고, 상기 구형파 변환회로부(블록A)에 연결되는 미분회로부(블록B)가 상기 구형파 변환회로부(블록A)로 부터 변환된 구형파를 미분하여 하나의 구형파로부터 제로크로싱(zero crossing)된 2개의 펄스를 발생시키되, 상기 미분회로부(블록B)를 제어하도록 연결된 제어부(블록C)의 제어를 받아 상기 발생된 펄스들중 특정의 펄스를 상기 전류제한저항(R1)에 입력시키는 것이다.A characteristic configuration of the present invention is to connect the trigger current limiting resistor R1 to the gate G of the triac TRIAC that controls the AC power supplied to the load, and connect the AC power to the resistor R2. Half-wave rectified and clamped by a half-wave clamping portion (block D) composed of a zener diode (D1), and the square wave conversion circuit portion (block A) connected to the connection point of the resistor (R2) and the zener diode (D1) is the half-wave. The square wave converted from the clamping waveform (block D) to the square wave, and the differential circuit portion (block B) connected to the square wave conversion circuit portion (block A) is converted from the square wave conversion circuit portion (block A). Differentially generate two pulses zero crossing from one square wave, and are controlled by a control unit (block C) connected to control the differential circuit unit (block B). Remind me It is to input to the limiting resistor (R1).

제로 크로싱, 제너다이오드, 펄스Zero Crossing, Zener Diode, Pulse

Description

전원 제어회로{controll circuit for power source}Control circuit for power source

도 1은 본 발명의 회로도.1 is a circuit diagram of the present invention.

도 2는 본 발명의 각 부분의 파형 타임 차드도.2 is a waveform time chart of each portion of the invention.

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

본 발명은 AC 전원의 제로 크로싱(zero crossing)에서 펄스를 발생시켜, AC 전원의 정(+), 부(-)의 반파를 별도로 제어하거나 정, 부 양파를 함께 제어하도록 하는 전원 제어회로에 관한 것이다.The present invention relates to a power supply control circuit for generating a pulse at zero crossing of an AC power supply to separately control the positive and negative half waves of the AC power supply or to control the positive and negative onions together. will be.

종래 트라이액을 트리거(Trigger)하려면, 포터커플러(Photo Coupler)나 트랜스포머(Transformer) 또는 단접합트랜지스터(UniJunction Ttransister)등을 사용하여 트리거신호를 인가하기 때문에 회로구성이 복잡하여 제작비가 많이 들어 비경제적인 결점이 있었다.In order to trigger a conventional triac, a trigger signal is applied using a photo coupler, a transformer, or a UniJunction Ttransister. There was a flaw.

본 발명은 상기의 문제점을 해결하기 위한 것으로, 간단한 회로구성에 의하여 교류전원의 제로 크로싱(zero crossing)과 동기된 펄스를 이용하여 교류전원의 정(+), 부(-)의 일방향 전원제어, 양방향 전원제어가 가능하도록 하는 전원제어회로를 제공한다.
본 발명의 다른 목적은 미세전력이 소요되는 좁은 펄스를 사용하여 전원을 제어함으로써 경제성을 높이도록 하기 위한 것이다.
본 발명의 다른 목적은 정(+), 부(-)의 일방향 전원제어가 가능하도록 함으로써 직류모터의 가역회전을 제어하도록 하기 위한 것이다. The present invention is to solve the above problems, the positive and negative one-way power control of the AC power supply using a pulse synchronized with the zero crossing of the AC power supply by a simple circuit configuration, Provided is a power supply control circuit that enables bidirectional power supply control.
Another object of the present invention is to increase the economics by controlling the power supply using a narrow pulse that takes a minute power.
Another object of the present invention is to control the reversible rotation of the DC motor by enabling the positive (+), negative (-) one-way power control.

상기 목적을 달성하기 위한 본 발명의 특징은 부하에 공급되는 교류전원(AC)을 제어하는 트라이액(TRIAC)의 게이트(G)에 트리거 전류제한저항(R1)을 연결하고, 상기 교류전원을 저항(R2)과 제너 다이오드(D1)로 구성되는 반파 클램핑부(블록D)에 의하여 반파정류하여 클램핑시키고, 상기 저항(R2)과 상기 제너다이오드(D1)의 접속점에 연결되는 구형파 변환회로부(블록A)가 상기 반파 클램핑부(블록D)에서 출력되는 클랭핑된 파형을 구형파로 변환시키고, 상기 구형파 변환회로부(블록A)에 연결되는 미분회로부(블록B)가 상기 구형파 변환회로부(블록A)로 부터 변환된 구형파를 미분하여 하나의 구형파로부터 제로크로싱(zero crossing)된 2개의 펄스를 발생시키되, 상기 미분회로부(블록B)를 제어하도록 연결된 제어부(블록C)의 제어를 받아 상기 발생된 펄스들중 특정의 펄스를 상기 전류제한저항(R1)에 입력시키는 것이다.
이하, 첨부된 도면에 따라서 본 발명을 상세히 설명하기로 한다.A characteristic of the present invention for achieving the above object is to connect a trigger current limiting resistor (R1) to the gate (G) of the triac (TRIAC) for controlling the AC power supply (AC) supplied to the load, the AC power supply resistor Half-wave rectified and clamped by a half-wave clamping portion (block D) consisting of (R2) and a zener diode (D1), and a square wave conversion circuit portion (block A) connected to a connection point of the resistor (R2) and the zener diode (D1). ) Converts the cranked waveform output from the half-wave clamping unit (block D) into a square wave, and a differential circuit unit (block B) connected to the square wave conversion circuit unit (block A) to the square wave conversion circuit unit (block A). The generated square waves are differentiated from the generated square wave to generate two zero-crossed pulses from one square wave, and are controlled by a control unit (block C) connected to control the differential circuit unit (block B). Of specific The pulse is to input to the current-limiting resistor (R1).
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 회로도이고, 도 2는 본 발명의 회로의 각부분의 파형챠트도이다.
도 2의 W1과 같은 교류전원(AC)은 트라이액(Q1)의 게이트(G)의 공급되는 펄스에 의하여 도통되어 부하(LOAD)에 공급되게 된다. 또한, 교류전원은 전압제한저항(R2)와 제너다이오드(D1)로 이루어진 반파클램핑부(블록D)에 공급된다. 제너다이오드(D1)와 전압제한저항(R2)의 접속점에 인가되는 전압파형은 부(-)극성의 전원이 제너다이오드(D1)에 인가될 때 제너다이오드(D1)는 도통되고, 제너전압이상의 정(+)의 전압이 인가되는 경우는 클램핑되기 때문에 도 2의 W2와 같이 된다.
또한, 반파 클램핑부(블록D)의 제너다이오드(D1)와 전압제한저항(R2)의 접속점에 연결되는 구형파 변환회로부(블록A)는 반파 클램핑부(블록D)로 부터 출력되는 반파의 클램핑된 파형을 구형파로 변환하며, 클램핑된 파형을 구형파로 변환하기 위해서는 공지의 슈미트 트리거회로를 사용한다.
구형파 변환회로부(블록A)에서 출력되는 구형파는 도 2의 W3의 파형과 같이, 구형파의 업 에지(up-edge)와 다운 에지(down-edge)는 교류전원이 0전위되는 제로크로싱(zero crossing) 점과 일치한다.
구형파 변환회로부(블록A)는 미분회로부(블록B)와 연결되어 있어 입력되는 구형파를 미분시킴으로써 하나의 입력 구형파에 대하여 2개의 펄스를 얻으며, 이 2개의 펄스는 제로크로싱점에서 발생되게 된다.
또한, 미분회로부(블록B)는 제어부(블록C)와 트라이액(Q1)의 게이트(G)의 트리거 전류제한저항(R1)과 연결되어 있어, 제어부(블록C)의 제어를 받아 특정의 펄스를 전류제한저항(R1)에 공급하도록 하여 트라이액(Q1)을 도통시킨다.
도 2의 W4는 제어부(블록C)의 제어를 받아 미분회로부(블록B)에서 출력되는 펄스를 나타내고, W5는 부하에 공급되는 전원의 파형을 나타낸다.
미분회로부(블록B)는 제어부(블록C)의 제어를 받아 전류제한저항(R1)에 W4와 같은 펄스를 공급하게 되면, 펄스가 발생된 시점으로부터 반 싸이클(half-cycle)동안은 트라이액(Q1)은 도통되게 되고, 그 다음 제로크로싱점에서 펄스가 발생되지 않게 되면 트라이액(Q1)은 불통되게 되어 W5와 같은 부하의 공급전원 파형을 형성하게 된다.
도 2의 W5에서 C5-1은 정(+), 부(-) 전압 모두가 부하에 공급되는 전원을 나타내고 있으며, C5-2는 정(+) 전압 만이 부하에 공급되는 것을 나타내고, C5-3은 부(-) 전압만이 부하에 공급되는 것을 나타낸다. Fig. 1 is a circuit diagram of the present invention, and Fig. 2 is a waveform chart of each part of the circuit of the present invention.
The AC power source AC such as W1 of FIG. 2 is turned on by the pulse supplied from the gate G of the triac Q1 to be supplied to the load LOAD. In addition, AC power is supplied to the half-wave clamping part (block D) consisting of the voltage limiting resistor R2 and the zener diode D1. The voltage waveform applied to the connection point of the zener diode D1 and the voltage limiting resistor R2 is such that when a negative polarity power is applied to the zener diode D1, the zener diode D1 is turned on, and When a positive voltage is applied, it is clamped, which is the same as W2 in FIG.
In addition, the square wave conversion circuit portion (block A) connected to the connection point of the zener diode D1 and the voltage limiting resistor R2 of the half wave clamping portion (block D) is a half wave clamped portion output from the half wave clamping portion (block D). The waveform is converted into a square wave, and a known Schmitt trigger circuit is used to convert the clamped waveform into a square wave.
The square wave output from the square wave converting circuit unit (block A) has a zero crossing in which the up-edge and down-edge of the square wave are zero-potential as shown in the waveform of W3 of FIG. 2. ) Coincides with the dot.
The square wave converting circuit portion (block A) is connected to the differential circuit portion (block B) to obtain two pulses for one input square wave by differentiating the input square wave, and these two pulses are generated at the zero crossing point.
In addition, the differential circuit unit (B) is connected to the control unit (block C) and the trigger current limiting resistor R1 of the gate G of the triac Q1, and under the control of the control unit (block C) a specific pulse is generated. Is supplied to the current limiting resistor R1 to conduct the triac Q1.
W4 of FIG. 2 shows the pulse output from the differential circuit part (block B) under control of the control part (block C), and W5 shows the waveform of the power supply supplied to a load.
When the differential circuit unit (B) supplies a pulse such as W4 to the current limiting resistor R1 under the control of the controller C, the triac (half-cycle) is generated during the half-cycle. Q1) becomes conductive, and when no pulse is generated at the zero crossing point, triac Q1 becomes non-conforming, forming a supply power waveform of a load such as W5.
In W5 of FIG. 2, C5-1 represents a power supply in which both positive and negative voltages are supplied to the load, and C5-2 represents that only a positive voltage is supplied to the load, and C5-3 Indicates that only negative voltage is supplied to the load.

삭제delete

삭제delete

삭제delete

삭제delete

이와 같이 된 본 발명은 교류전원을 제어함에 있어서 전원주파수에 동기된 제로크로싱에서 좁은 펄스 2개를 발생시켜 히터의 발열량 제어, 직류모터의 회전방향전환 및 전자석 극성전환 솔레노이드(Solenoid)의 가역작동 등 다양한 제어를 간단한 회로로 가능케 하여 제작비를 절감하여 경제성을 높일 수 있는 효과가 있다.Thus, the present invention generates two narrow pulses in zero crossings synchronized with the power frequency in controlling the AC power, thereby controlling the heating value of the heater, switching the rotational direction of the DC motor, and reversing operation of the solenoid polarity switching solenoid (Solenoid). It is possible to increase the economic efficiency by reducing the manufacturing cost by enabling various controls with a simple circuit.

Claims (3)

부하에 공급되는 교류전원(AC)을 제어하는 트라이액(TRIAC)의 게이트(G)에 트리거 전류제한저항(R1)을 연결하고, The trigger current limiting resistor R1 is connected to the gate G of the triac TRIAC that controls the AC power supplied to the load. 상기 교류전원을 저항(R2)과 제너 다이오드(D1)로 구성되는 반파 클램핑부(블록D)에 의하여 반파정류하여 클램핑시키고, The AC power is clamped by half-wave rectifying by a half-wave clamping unit (block D) composed of a resistor (R2) and a zener diode (D1), 상기 저항(R2)과 상기 제너다이오드(D1)의 접속점에 연결되는 구형파 변환회로부(블록A)가 상기 반파 클램핑부(블록D)에서 출력되는 클랭핑된 파형을 구형파로 변환시키고, A square wave conversion circuit unit (block A) connected to the connection point of the resistor R2 and the zener diode D1 converts the cranked waveform output from the half wave clamping unit (block D) into a square wave, 상기 구형파 변환회로부(블록A)에 연결되는 미분회로부(블록B)가 상기 구형파 변환회로부(블록A)로부터 변환된 구형파를 미분하여 하나의 구형파로부터 제로크로싱(zero crossing)된 2개의 펄스를 발생시키되, 상기 미분회로부(블록B)를 제어하도록 연결된 제어부(블록C)의 제어를 받아 발생된 펄스들중 특정의 펄스를 상기 전류제한저항(R1)에 입력시켜 상기 트라이액을 도통시키는 것을 특징으로 하는 전원제어회로.The differential circuit portion (B) connected to the square wave conversion circuit portion (block A) differentiates the square wave converted from the square wave conversion circuit portion (block A) to generate two pulses zero crossing from one square wave. And conducting the triac by conducting a specific pulse among the pulses generated under the control of the control unit (block C) connected to control the differential circuit unit (block B) to the current limiting resistor R1. Power control circuit. 삭제delete 삭제delete
KR1020040017490A 2004-03-15 2004-03-15 Controll circuit for power source KR100684571B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020040017490A KR100684571B1 (en) 2004-03-15 2004-03-15 Controll circuit for power source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040017490A KR100684571B1 (en) 2004-03-15 2004-03-15 Controll circuit for power source

Publications (2)

Publication Number Publication Date
KR20050092327A KR20050092327A (en) 2005-09-21
KR100684571B1 true KR100684571B1 (en) 2007-02-22

Family

ID=37273714

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020040017490A KR100684571B1 (en) 2004-03-15 2004-03-15 Controll circuit for power source

Country Status (1)

Country Link
KR (1) KR100684571B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497840A (en) 1978-01-18 1979-08-02 Mitsubishi Electric Corp Glow discharge heater
JPS5566761A (en) 1978-06-19 1980-05-20 Matsushita Electric Ind Co Ltd Detecting method and its device for source voltage zero point
JPS6096923A (en) 1983-11-01 1985-05-30 Nec Corp Triac drive circuit
KR920006456B1 (en) * 1988-03-08 1992-08-06 미쓰비시전기 주식회사 Pressure detecting apparatus
JP2002125385A (en) 2000-10-12 2002-04-26 Fujisoku:Kk Phase control circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497840A (en) 1978-01-18 1979-08-02 Mitsubishi Electric Corp Glow discharge heater
JPS5566761A (en) 1978-06-19 1980-05-20 Matsushita Electric Ind Co Ltd Detecting method and its device for source voltage zero point
JPS6096923A (en) 1983-11-01 1985-05-30 Nec Corp Triac drive circuit
KR920006456B1 (en) * 1988-03-08 1992-08-06 미쓰비시전기 주식회사 Pressure detecting apparatus
JP2002125385A (en) 2000-10-12 2002-04-26 Fujisoku:Kk Phase control circuit

Also Published As

Publication number Publication date
KR20050092327A (en) 2005-09-21

Similar Documents

Publication Publication Date Title
WO1997047070A1 (en) Ac/ac converter
RU2001113945A (en) Power Source (Options)
MY116811A (en) Converter circuit
EP2654376A1 (en) Illumination device with adjustable luminance and luminance adjustment method thereof
JP2005522177A5 (en)
WO2003085813A3 (en) Line frequency switching regulator
EP1102387A2 (en) DC power supply apparatus
WO2001065347A3 (en) Haptic feedback gaming device with integral power supply
JP5007966B2 (en) AC-DC converter
KR100684571B1 (en) Controll circuit for power source
KR101920843B1 (en) Apparatus of generating scr gating signal for thyristor controller
ATA89291A (en) METHOD FOR CONTROLLING PERMANENTLY EXCITED ELECTRICALLY SINGLE-PHASE AC POWER MACHINES
KR20070090740A (en) Method for switching low-power using ac and system for performing the same and power supply for using the system
AU2011200252A1 (en) Method for controlling low- voltage using waves AC and system for performing the same
JP2704519B2 (en) DC power supply
JPH07312898A (en) Three-phase electric inverter of variable-speed motor and its driving method
EP1033805A3 (en) Power unit
Rafique A universal and optimized embedded system to control firing angle of thyristors with double-sided isolation
JPH0564451A (en) Power source apparatus
ATE426942T1 (en) CIRCUIT ARRANGEMENT FOR CONTROLLING TWO INDEPENDENT LOADS THAT CAN BE OPERATED WITH A RECTIFIED AC VOLTAGE
RU2266608C2 (en) Method for stepless ac voltage regulation and its phase variation
KR910004131Y1 (en) Stand-by circuit of remote receiver
KR100239448B1 (en) clock oscillator
JPH0116315Y2 (en)
SU1376190A1 (en) Power supply apparatus

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130207

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20140711

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20141223

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20160121

Year of fee payment: 10

FPAY Annual fee payment

Payment date: 20170112

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20180202

Year of fee payment: 12

FPAY Annual fee payment

Payment date: 20190128

Year of fee payment: 13

FPAY Annual fee payment

Payment date: 20200128

Year of fee payment: 14