KR0127031B1 - Power saving circuits and control method - Google Patents

Power saving circuits and control method

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Publication number
KR0127031B1
KR0127031B1 KR1019940019741A KR19940019741A KR0127031B1 KR 0127031 B1 KR0127031 B1 KR 0127031B1 KR 1019940019741 A KR1019940019741 A KR 1019940019741A KR 19940019741 A KR19940019741 A KR 19940019741A KR 0127031 B1 KR0127031 B1 KR 0127031B1
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KR
South Korea
Prior art keywords
power
remote control
data
power supply
microcomputer
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KR1019940019741A
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Korean (ko)
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KR960009680A (en
Inventor
백운길
Original Assignee
구자홍
엘지전자주식회사
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Priority to KR1019940019741A priority Critical patent/KR0127031B1/en
Publication of KR960009680A publication Critical patent/KR960009680A/en
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Publication of KR0127031B1 publication Critical patent/KR0127031B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/036—Radio; TV
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Television Receiver Circuits (AREA)
  • Selective Calling Equipment (AREA)

Abstract

When the user designates the power control key of the remote control, the light receiving part(2) receives the power control data. As the data is transmitted to the power control part(3), it acts accordingly and feeds the AC power obtained by turning the semiconductor switch on or off, to the power rectifier(5). It is rectified therein, and as the rectified power is fed to the first phase coil of the SMPS trans(7), the switching IC(6) is put into a motion and by turning the transistor(Q1) on or off. The power supplied to the phase one of SMPS will be supplied to the internal circuit of TV and microcomputer(8), on the other hand, the microcomputer receives TV control data other than the power control data thru the optical coupler(9) and controls TV.

Description

절전형 전원회로 및 제어방법Power-saving power circuit and control method

제1도는 종래 전원회로의 핫샤시 구성블럭도.1 is a block diagram of a hot chassis of a conventional power supply circuit.

제2도는 종래 전원회로의 콜드샤시 구성블럭도.2 is a block diagram of a cold chassis of a conventional power supply circuit.

제3도는 본 발명 전원회로의 구성블럭도.3 is a block diagram of a power supply circuit of the present invention.

제4도는 본 발명 전원회로의 제어방법의 과정을 보인 플로우챠트.Figure 4 is a flow chart showing the process of the control method of the power supply circuit of the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1 : 스텐바이전원부2 : 리모콘수광부1: Standby power supply unit 2: Remote control light receiving unit

3 : 전원제어부4 : 반도체스위치3: power supply control unit 4: semiconductor switch

5 : 정류부6 : 스위칭IC5: rectifier 6: switching IC

7 : SMPS트랜스8 : 마이컴7: SMPS Trans 8: Microcomputer

9 : 광결합기9: optical coupler

본 발명은 소비전력을 최소화하기 위한 절전형 전원회로 및 제어방법에 관한 것이다.The present invention relates to a power-saving power supply circuit and a control method for minimizing power consumption.

종래 전원회로는 전원의 1차, 2차측의 그라운드(Ground)가 동일한 핫(Hot)샤시와 전원의 1차, 2차측의 접지분리형인 콜드(Cold)샤시 2가지의 구성으로 나눌 수 있는바, 먼저 제1도를 참조하여 핫샤시의 구성부터 설명하면 다음과 같다.Conventional power circuits can be divided into two configurations: a hot chassis having the same ground on the primary and secondary sides of the power supply and a cold chassis, which is a ground separation type on the primary and secondary sides of the power supply. First, the configuration of the hot chassis will be described with reference to FIG. 1 as follows.

핫샤시의 구성은 제1도에 도시된 바와 같이 입력되는 AC전원을 마이컴(18)에 전원을 인가하는 스텐바이전원부(11)와, 마이컴(18)에 제어신호에 의해 온, 오프스위칭하여 정류부(13)로 전원을 인가하는 릴레이스위치(12)와, 상기 릴레이스위치(12)의 온, 오프스위칭에 의해 입력되는 AC전원을 정류하는 정류부(13)와, 상기 정류부(13)에서 정류된 전원을 정전압 유지하여 티브이 내부회로로 출력하는 정전원부(14)와, 외부입력단자에 연결되어 외부입력단자와 그라운드를 분리하는 광결합기(15)와, 마이컴(18)의 제어신호에 의해 선택스위칭하여 영상신호와 음성신호를 출력하는 A/V스위치(16)와, 리모콘에서 발생되는 적외선신호를 입력받는 리모콘수광부(17)와, 상기 리모콘수광부(17)에서 입력받은 신호에 의해 각 블럭을 제어하는 마이컴(18)으로 구성된다.As shown in FIG. 1, the hot chassis has a standby power supply unit 11 for supplying power to the microcomputer 18 and an on / off-switching of the microcomputer 18 by a control signal. A relay switch 12 for applying power to (13), a rectifier 13 for rectifying AC power input by on and off switching of the relay switch 12, and a power source rectified by the rectifier 13 Selective switching by the control signal of the micro-communication unit 14, the optical coupler 15 connected to the external input terminal to separate the external input terminal and the ground, and the microcomputer 18 to maintain a constant voltage to output to the TV internal circuit Each block is controlled by an A / V switch 16 for outputting a video signal and an audio signal, a remote control receiver 17 receiving an infrared signal generated from a remote controller, and a signal received from the remote controller receiver 17. It consists of the microcomputer 18.

미설명부호 R11, R12는 저항, D11, D12는 다이오드, C11은 콘덴서이다.Reference numerals R11 and R12 denote resistors, D11 and D12 denote diodes, and C11 denotes capacitors.

그리고, 제2도를 참조하여 콜드샤시의 구성을 설명하면, 입력되는 AC전원을 마이컴(27)에 인가하는 스텐바이 전원트랜스(21)와, 마이컴(27)의 제어신호에 의해 온, 오프스위칭하여 입력되는 AC전원을 정류부(23)로 인가하는 릴레이스위치(22)와, 입력되는 AC전원을 정류하는 정류부(23)와, 트랜지스터(Q21)을 온, 오프스위칭 제어하여 SMPS트랜스(25)가 동작하도록 하는 스위칭 IC(24)와, 상기 스위칭 IC(24)의 동작에 의해 정류부(23)에서 정류된 전류를 재정류하여 티브이 내부회로에 출력하는 SMPS트랜스(25)와, 리모콘에서 출력되는 적외선신호를 받아들이는 리모콘수광부(26)와, 상기 리모콘수광부(26)에서 받아들인 신호에 의해 각 블럭을 제어하는 마이컴(27)으로 구성된다.Referring to FIG. 2, a cold chassis configuration will be described. On and off switching is performed by the standby power transformer 21 for applying the input AC power to the microcomputer 27 and the control signals of the microcomputer 27. FIG. The SMPS transformer 25 turns on and off switching control of the relay switch 22 for supplying the AC power inputted to the rectifier 23, the rectifier 23 for rectifying the input AC power, and the transistor Q21. The switching IC 24 to operate, the SMPS transformer 25 to rectify the current rectified by the rectifier 23 by the operation of the switching IC 24 and output to the TV internal circuit, and the infrared ray output from the remote controller The remote control light receiving unit 26 which receives a signal and the microcomputer 27 which controls each block by the signal received by the said remote control light receiving unit 26 are comprised.

미설명부호 R21은 저항, C21∼C24는 콘덴서, D21∼D25는 다이오드이다.Reference numeral R21 denotes a resistor, C21-C24 denotes a capacitor, and D21-D25 denotes a diode.

이와 같이 구성된 종래 전원회로의 핫샤시는 사용자가 리모콘의 전원제어코드를 지정하면 리모콘수광부(17)에서 받아들여 마이컴(18)에 인가하고, 마이컴(18)에서는 스텐바이 전원부(11)로부터 AC전원을 인가받아 동작하며, 상기 리모콘수광부(17)로부터 입력된 전원제어 코드에 의하여 릴레이스위치(12)를 온, 오프시켜 정류부(13)에 입력되는 AC전원은 인가하게 하고, 상기 릴레이스위치(12)에 의하여 인가된 AC전원을 정류부(13)에서 정류하여 정전원부(14)를 통하여 티브이 내부회로에 인가되며, 광결합기(15)에서는 외부입력단자(비디오단자등)의 그라운드를 분리하여 준다.The hot chassis of the conventional power circuit configured as described above is accepted by the remote control receiver 17 when the user designates the power control code of the remote controller, and applied to the microcomputer 18. The microcomputer 18 supplies the AC power from the standby power supply unit 11. It operates by being applied to, the relay switch 12 by the power control code input from the remote control light receiving unit 17 to turn on, off the AC power input to the rectifier 13, the relay switch 12 AC power applied by the rectifier is rectified by the rectifier 13 is applied to the TV internal circuit through the electrostatic source unit 14, the optical coupler 15 separates the ground of the external input terminal (video terminal, etc.).

또한, 콜드샤시는 리모콘에서 출력되는 전원제어코드를 리모콘수광부(26)에서 받아들여 마이컴(27)에 인가하면, 마이컴(27)에서는 릴레이스위치(22)를 온, 오프시켜 입력되는 AC전원이 정류부(23)에 입력하게 하고, 상기 릴레이스위치(22)부에 의해 입력되는 AC전원을 정류부(23)에서는 정류하여 SMPS트랜스(25)의 1차측 코일에 인가하면 스위칭 IC(24)의 동작에 의해 트랜지스터(Q21)가 온, 오프스위칭하므로서 SMPS트랜스(25)의 2차측에 유기되어 재정류되어 티브이 내부회로에 공급되게 되는 것이다.In addition, when the cold chassis receives the power control code output from the remote control from the remote control light receiving unit 26 and applies it to the microcomputer 27, the microcomputer 27 turns on and off the relay switch 22 so that the AC power inputted from the remote control unit is rectified. (23), AC power inputted by the relay switch 22 is rectified by the rectifier 23, and applied to the primary coil of the SMPS transformer 25 by the operation of the switching IC 24. As the transistor Q21 is turned on and off, it is induced on the secondary side of the SMPS transformer 25 to be rearranged and supplied to the TV internal circuit.

그러나, 종래 전원제어회로는 핫샤시의 경우는 티브이의 내부, 외부의 동일한 그라운드에 의한 감전위험등으로 대형티브이의 경우에 부적합하며, 콜드샤시의 경우는 감전위험등의 문제는 없으나 티브이의 내부와 외부의 그라운드분리를 위하여 1차와 2차가 분리된 릴레이스위치(22)를 사용하게 됨에 따라 릴레이스위치(22)를 구동하기 위한 스텐바이전원이 필요하므로 스텐바이시 전력손실의 문제점이 있었다.However, the conventional power supply control circuit is unsuitable for the case of large TVs due to the risk of electric shock due to the same ground inside and outside of the TV in the case of a hot chassis, and there is no problem of electric shock risk in the case of a cold chassis. As the primary and secondary relay switches 22 are used for external ground separation, there is a problem of standby power loss because a standby power source for driving the relay switch 22 is required.

본 발명의 이와 같은 종래의 문제점을 해결하기 위하여 전원의 1차측에 반도체 스위치를 이용하여 전원 온, 오프제어소자인 마이컴을 구성하여 전원을 온, 오프 제어를 할 수 있도록 하므로서 스텐바이시 소비전력을 최소화 할 수 있도록 한 것이다.In order to solve the conventional problems of the present invention, by using a semiconductor switch on the primary side of the power supply, a microcomputer, which is a power on and off control element, is configured to enable power on and off control, thereby reducing standby power consumption. It is to be minimized.

본 발명 절전형 전원제어회로의 구성은 제3도에 도시된 바와 같이 입력되는 AC전원을 전원제어부(3) 인가하는 스텐바이전원부(1)와, 리모콘에서 출력되는 적외선신호를 받아들이는 리모콘수광부(2)와, 상기 리모콘수광부(2)에서 받아들인 신호에 의해 반도체스위치(4)를 제어하는 전원제어부(3)과, 상기 전원제어부(3)의 제어를 받아 온, 오프스위칭하여 입력되는 AC전원을 정류부(5)에 인가하는 반도체스위치(4)와, 입력되는 AC전원을 정류하여 SMPS트랜스(7)의 1차측에 인가하는 정류부(5)와, 트랜지스터(Q1)을 온, 오프스위칭 제어하여 SMPS제어부를 동작시키는 스위칭 IC(6)와, 상기 스위칭 IC(6)에 의해 동작하여 1차측에 유기된 전원을 재정류하여 마이컴(8)과 티브이 내부회로로 출력하는 SMPS트랜스(7)와, 리모콘수광부(2)에서 받아들인 신호를 1차와 2차로 분리하여 마이컴(8)으로 인가하는 광결합기(9)와, 전원이 온되었을 때 티브이를 제어하는 마이컴(8)으로 구성된다.The configuration of the power-saving power control circuit of the present invention includes a standby power supply unit 1 for applying an AC power input to the power control unit 3 as shown in FIG. 3, and a remote control light receiving unit 2 for receiving infrared signals output from the remote control unit. ), A power supply control unit 3 for controlling the semiconductor switch 4 by a signal received from the remote control light receiving unit 2, and AC power input by being switched on and off under the control of the power supply control unit 3 The semiconductor switch 4 to be applied to the rectifier 5, the rectifier 5 to rectify the AC power input to be applied to the primary side of the SMPS transformer 7, and the transistor Q1 on and off switching control SMPS A switching IC 6 for operating the control unit, an SMPS transformer 7 operating by the switching IC 6 to rectify the induced power on the primary side and outputting the microcomputer 8 to the TV internal circuit; The signal received by the light receiving unit 2 is separated into primary and secondary The optical coupler 9 applied to the microcomputer 8 and the microcomputer 8 for controlling the TV when the power is turned on.

미설명부호 R1, R2는 저항, C1∼C4는 콘덴서, D1∼D3는 다이오드이다.Reference numerals R1 and R2 denote resistors, C1 to C4 capacitors, and D1 to D3 diodes.

그리고 본 발명 절전형 전원회로의 제어방법의 구성은 제4도에 도시된 바와 같이 리모콘수광부(2)로부터 리모콘의 데이타가 있는가를 판단하는 제1과정과, 상기 제1과정 판단결과 리모콘데이타가 있으면 리모콘 데이타를 디코딩하여 디코딩된 리모콘 데이타가 전원 온, 오프데이타 인가를 판단하는 제2과정과, 상기 제2과정 판단결과 디코딩된 리모콘 데이타가 전원 온, 오프데이타이면 전원제어부(3)의 A단자에서 하이 신호 출력중인가를 판단하는 제3과정과, 상기 제3과정 판단결과 전원제어부(3)의 A단자에 하이인가 출력중이면 A단자에서 로우신호를 출력하도록 하고, A단자에 하이신호가 출력되지 않고 있으면 A단자에 하이신호를 출력하도록 하는 제4과정으로 구성된다.The control method of the power saving circuit of the present invention includes a first process of determining whether there is data of the remote controller from the remote control receiver 2 as shown in FIG. 4, and the remote control data if the remote control data is present as a result of the first process determination. A second process of determining whether the decoded remote control data is powered on or off data; and if the decoded remote control data is powered on or off data, a high signal is detected at terminal A of the power controller 3. The third process of determining whether the output is being output, and if the output of the third process is high or output to the A terminal of the power supply control unit 3, the low signal is output from the A terminal, and the high signal is not output to the A terminal. If so, a fourth process is provided to output a high signal to terminal A.

이와 같이 구성된 본 발명 절전형 제어회로 및 제어방법을 제3도와 제4도를 참조하여 작용효과를 설명하면 다음과 같다.Referring to FIG. 3 and FIG. 4, the power saving control circuit and the control method of the present invention configured as described above will be described as follows.

본 발명은 사용자가 리모콘의 전원제어 키이를 지정하면 리모콘수광부(2)에서는 전원제어 데이타를 받아들이고, 받아들인 데이타를 전원제어부(3)으로 인가하면, 전원제어부(3)에서는 스텐바이전원부(1)에서 입력된 전원에 의해 동작하여, 리모콘수광부(2)에서 받아들인 리모콘 데이타에 의하여 반도체스위치(4)를 온,오프시켜 입력되는 AC전원을 정류부(5)에 인가하게 되는바, 전원제어부(3)의 A단자에서 하이를 출력중이면 로우를 출력시켜 반도체스위치(4)를 오프시키고, A단자에서 로우를 출력중이면 하이를 출력시켜 반도체스위치(4)를 온시킨다.According to the present invention, when the user designates the power control key of the remote control, the remote control light receiving unit 2 receives the power control data, and when the received data is applied to the power control unit 3, the power supply control unit 3 receives the standby power supply unit 1. It operates by the power input from the power supply unit, and turns on and off the semiconductor switch 4 by the remote control data received from the remote control light receiving unit 2 to apply the input AC power to the rectifier 5, the power supply control unit 3 When the high terminal is outputting at the terminal A, the low level is output to turn off the semiconductor switch 4, and when the low level is output at the terminal A, the semiconductor switch 4 is turned off to turn on the semiconductor switch 4.

이후, 반도체스위치(4)가 온되어 입력되는 AC전원이 정류부(5)에 인가되고, 정류부(5)에서 정류하여 SMPS트랜스(7)의 1차측에 코일에 인가하면, 스위칭 IC(6)가 동작하여 트랜지스터(Q1)를 온, 오프시키므로서 SMPS트랜스(7)의 1차측에 인가된 전원을 2차측에 유기시켜 재정류하여 티브이 내부회로와 마이컴(8)에 인가한다.After that, when the semiconductor switch 4 is turned on and the AC power inputted is applied to the rectifier 5, rectified by the rectifier 5 and applied to the coil of the SMPS transformer 7, the switching IC 6 is applied. By operating the transistor Q1 to be turned on and off, the power applied to the primary side of the SMPS transformer 7 is induced to the secondary side and rearranged to be applied to the TV internal circuit and the microcomputer 8.

한편 마이컴(8)에서는 리모콘수광부(2)에서 받아들인 리모콘 데이타중 전원제어 데이타외에 기타 다른 티브이 제어데이타를 광결합기(9)를 통하여 인가받아 티브이를 제어한다.On the other hand, the microcomputer 8 receives TV control data other than the power supply control data among the remote control data received by the remote control receiver 2 to control the TV through the optical combiner 9.

이상에서 설명한 바와 같이 전원만을 온, 오프 제어하도록 하는 전원제어부(3)을 구성하여, 전원스텐바이시는 반도체스위치(4)를 온, 오프 스위칭 제어하므로서 소비전력을 최소화시키고, 전원 온시에는 SMPS트랜스(7)를 이용하여 전력의 효율을 높이므로서 소비전력을 줄일 수 있는 효과가 있는 것이다.As described above, the power control unit 3 is configured to control only the power supply, and thus, the power supply standby minimizes power consumption by controlling the semiconductor switch 4 on and off. By using (7) to increase the efficiency of the power is to reduce the power consumption.

Claims (2)

입력되는 AC전원을 전원제어부(3)에 인가하는 스텐바이전원부(1)와, 리모콘에서 출력되는 적외선 신호를 받아들이는 리모콘수광부(2)와, 상기 리모콘수광부(2)에서 받아들인 신호에 의해 반도체스위치(4)를 제어하는 전원제어부(3)과, 상기 전원제어부(3)의 제어를 받아 온, 오프스위칭하여 입력되는 AC전원을 정류부(5)에 인가하는 반도체스위치(4)와, 입력되는 AC전원을 정류하여 SMPS트랜스(7)의 1차측에 인가하는 정류부(5)와, 트랜지스터(Q1)을 온, 오프스위칭 제어하여 SMPS제어부를 동작시키는 스위칭 IC(6)와, 상기 스위칭 IC(6)에 의해 동작하여 1차측에 유기된 전원을 재정류하여 마이컴(8)과 티브이 내부회로로 출력하는 SMPS트랜스(7)와, 리모콘수광부(2)에서 받아들인 신호를 1차와 2차로 분리하여 마이컴(8)으로 인가하는 광결합기(9)와, 전원이 온 되었을 때 티브이를 제어하는 마이컴(8)으로 구성된 것을 특징으로 하는 절전형 전원회로.The standby power supply unit 1 for applying the input AC power to the power supply control unit 3, the remote control light receiving unit 2 for receiving the infrared signal output from the remote control, and the signal received by the remote control light receiving unit 2 A power supply control section 3 for controlling the switch 4, a semiconductor switch 4 for applying AC power input to the rectifying section 5 by being switched on and off under the control of the power supply control section 3, and A rectifier 5 for rectifying AC power and applying it to the primary side of the SMPS transformer 7, a switching IC 6 for operating the SMPS controller by turning on and off switching the transistor Q1; and the switching IC 6 And the SMPS transformer 7 for outputting to the microcomputer 8 and the TV internal circuit by rectifying the induced power on the primary side, and separating the signals received from the remote control receiver 2 into primary and secondary. The optical coupler 9 applied to the microcomputer 8 and the tee when the power is turned on Power saving type power supply circuit, characterized in that composed of a microcomputer (8) for controlling the V. 리모콘수광부(2)로부터 리모콘의 데이타가 있는가를 판단하는 제1과정과, 상기 제1과정 판단결과 리모콘 데이타가 있으면 리모콘 데이타를 디코딩하여 디코딩된 리모콘 데이타가 전원 온, 오프데이타 인가를 판단하는 제2과정과, 상기 제2과정 판단결과 디코딩된 리모콘 데이타가 전원 온, 오프데이타이면 전원제어부(3)의 A단자에서 하이신호 출력중 인가를 판단하는 제3과정과, 상기 제3과정 판단결과 전원제어부(3)의 A단자에 하이신호가 출력중이면 A단자에서 로우신호를 출력하도록 하고, A단자에 하이신호가 출력되지 않고 있으면 A단자에 하이신호를 출력하도록 하는 제4과정으로 구성된 것을 특징으로 하는 절전형 전원제어방법.A first step of determining whether there is data of the remote controller from the remote control receiver 2, and a second step of determining whether the decoded remote control data is powered on or off data by decoding the remote control data if the remote control data is found as a result of the first step determination And a third process of determining whether the decoded remote controller data is powered on or off data during the high signal output at the A terminal of the power controller 3, and the power controller (3). And a fourth process for outputting a low signal at terminal A if a high signal is being output to terminal A of step 3) and for outputting a high signal to terminal A if a high signal is not being output at terminal A. Power-saving power control method.
KR1019940019741A 1994-08-10 1994-08-10 Power saving circuits and control method KR0127031B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040007002A (en) * 2002-07-16 2004-01-24 삼성전자주식회사 Device for removing standby power in appliances using power line communication
KR100670587B1 (en) * 1999-11-22 2007-01-17 삼성전자주식회사 A power-saving circuit in a video display system
KR20180005731A (en) 2018-01-08 2018-01-16 주식회사 디지텍 Switching Mode Power Supply in lighting controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100670587B1 (en) * 1999-11-22 2007-01-17 삼성전자주식회사 A power-saving circuit in a video display system
KR20040007002A (en) * 2002-07-16 2004-01-24 삼성전자주식회사 Device for removing standby power in appliances using power line communication
KR20180005731A (en) 2018-01-08 2018-01-16 주식회사 디지텍 Switching Mode Power Supply in lighting controller

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