CN1423479A - Television receiver power source capable of cold cut off and hot start - Google Patents
Television receiver power source capable of cold cut off and hot start Download PDFInfo
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- CN1423479A CN1423479A CN 01139782 CN01139782A CN1423479A CN 1423479 A CN1423479 A CN 1423479A CN 01139782 CN01139782 CN 01139782 CN 01139782 A CN01139782 A CN 01139782A CN 1423479 A CN1423479 A CN 1423479A
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Abstract
This invention strips away power control function from TV function control circuit and designs a superlow power cost stand-by circuit supplied by battery matching with relay AC master loop to provide a power supply of either cold switch-off of heat starting with the advantage of keeping all operational functions of TV remote controller, and increases stand-by safety performance greatly for cold switch-off greatly simplifies low power cost circuit design.
Description
The invention belongs to TV technology, relate in particular to a kind of can cold shutoff again can warm start TV set power.
Remote-controlled TV set power system is made of ac main circuit control, main power source, accessory power supply etc. usually, and main power source is to the functional circuit power supply of system, and accessory power supply is powered to function control circuit.Function control circuit after receiving the shutdown command of remote controller, thereby stop the normal function of television set by the Alternating Current Power Supply that driver cuts off main power source.Accessory power supply then need keep to function control circuit power supply, makes television set also can accept at any time to start once more from the order of remote controller under holding state.
This shutdown mode that is called as the heat shutoff provides very big convenience for the user.But because the complexity of function control circuit, the electric energy that consumes during standby is still considerable, must adopt ac power supply; Under abominable electrical network condition, the television set of standby may produce the problem that is difficult to estimate.Patent ZL98228226.5 " a kind of television set AC power complete closedown device " has proposed not establish the solution of standby power: after television set is received shutdown command, directly cut off civil power and enter cold off state with relay, this greatly improves the standby safety performance of television set.But after each shutdown, just can not can only start shooting with the switch on the TV set panel with remote controller again.This has brought inconvenience for the user who more and more gets used to the remote controller operation.
The objective of the invention is: the deficiency that exists at prior art and propose a kind of can cold shutoff can warm start TV set power.
Concrete technical measures of the present invention are: the power control function in the television set function control circuit is peeled off out, designing one can be by the stand-by circuit of the super low-power consumption of battery and main power source dual power supply, the major loop controlling schemes that cooperates relay, can guarantee that cold pass has no progeny, battery-powered stand-by circuit still can be realized the warm start to television set.
Stand-by circuit of the present invention and major loop controlling schemes realize by taking following technical scheme: main power source provides one tunnel DC power supply to stand-by circuit; The standby power that this power supply, reserve battery and power supply switch circuit constitute is received order respectively and is received on head, intelligent electric source controller, the auxiliary relay; Also directly receive the input port of intelligent electric source controller simultaneously; The output that order receives head links to each other with the intelligent electric source controller with level matching circuit, and the television set function control circuit is received in the output of level matching circuit, and level matching circuit and television set function control circuit adopt same power supply; The output of intelligent electric source controller connects the coil of auxiliary relay by driver, and the coil of the contact power controlling relay of auxiliary relay is again by the electric main of the contact control main power source of power relay.
Introduce the accompanying drawing of the embodiment of the invention below, and describe the present invention in conjunction with the accompanying drawings.
Fig. 1 is the theory diagram of the embodiment of the invention
Wherein: 1-stand-by circuit, 2-main power source, 3-reserve battery, the 4-power supply switches, and the 5-order receives head, 6-intelligent electric source controller, the 7-function control circuit, 8-driver, 9-level match, the 10-auxiliary relay, 11-standby power, 12-contact, 13,14-contact, 15-power relay, the 16-functional circuit, the 17-push-button switch.
Fig. 2 is the stand-by circuit schematic diagram of the embodiment of the invention
Below in conjunction with accompanying drawing the present invention is described further:
In Fig. 1, main power source 2 is respectively to functional circuit 16, function control circuit 7 power supplies; Main power source 2 provides one tunnel DC power supply Vccl to stand-by circuit 1 simultaneously; The output of the standby power 11 that this power supply, reserve battery 3 and power supply switch circuit 4 constitute receives respectively that order receives 5, on the coil J of intelligent electric source controller 6, auxiliary relay 10; Vccl also directly receives the input port of intelligent electric source controller 6; Order receives 5 output and links to each other with intelligent electric source controller 6 with level match 9 circuit, and television set function control circuit 7 is received in the output of level matching circuit 9, level match 9 circuit and the same power Vcc 2 of television set function control circuit 7 employings; The output of intelligent electric source controller 6 meets the coil J of auxiliary relay 10 by driver 8, and the coil ZC of the contact 12 power controlling relays 15 of auxiliary relay 10 is again by the electric main of contact 13, the 14 control main power sources 2 of power relay 15.
Can more specifically understand the operation principle of stand-by circuit 1 from Fig. 2.One tunnel DC power supply Vcc1 of main power source 2 outputs links to each other with the anode of diode D1, D2, D3, the negative electrode of D3 links to each other with rechargeable battery B1, diode D4 through resistance R 1, the negative electrode of D4 with receive single-chip microcomputer U1 after the negative electrode of D1 links to each other, order receives on the coil J of a U3, power monitoring chip U2 and relay 10, so just can guarantee stand-by circuit power supply supply under any circumstance.The input of the negative electrode connecting resistance R2 of D2 and U1, the output of U2 connects another input of U1, just can make U1 can discern the situation of external ac power source and battery.The drain electrode connecting resistance R3 of T2 and function control circuit 7, another termination power Vcc 2 of R3 constitutes level match 9 circuit, and the signal level between stand-by circuit 1 and the function control circuit 7 is consistent.The grid of T2 is received in the output of U3 and the input of U1 is imported as order.The output of single-chip microcomputer U1 is received driver 8 grid of T1 just, the drain electrode of T1 is received on the end of auxiliary relay 10 coil J, the ends A of the contact 12 of relay 10, B receive respectively on the input of the end of coil ZC of power relay 15 and AC power, and two contacts 13,14 of power relay 15 are connected on respectively on two AC power incoming lines of main power source 2.Single-chip microcomputer U1 is according to AC power, DC power supply, control command and last state decision of the ordering control to AC power.
As long as auxiliary relay 10 is energized, it is electric that its contact 12 closures just make power relay 15 get, and power relay contact 13,14 closures insert civil power the input side of main power source 2.Otherwise just can cut off being electrically connected of television set and city's electrical network.
At the beginning of television set starts,, can not accept any order because function control circuit 7 does not have power supply to supply with; Intelligent electric source controller 6 will receive a power command decoding of 5 after driver 8 excitation auxiliary relays 10 from order, contact 12 closures, if civil power exists, power relay 15 is energized, civil power is connected in its contact 13,14, start main power source 2, functional circuit 16 is restored electricity, function control circuit 7 gets the electric command function treatment state that enters; DC power supply Vcc1 takes over reserve battery 3 to stand-by circuit 1 power supply through power supply switch circuit 4 simultaneously.
After intelligent electric source controller 6 is received shutdown command, promptly cancel the excitation to middle relay 10, open contact 12, power relay 15 loses excitation, contact 13,14 disconnects civil power, and the power supply of functional circuit 16 and function control circuit 7 disappears thereupon, the function stop of equipment; Reserve battery 3 switches 4 circuit through power supply takes over the power supply that DC power supply Vcc1 keeps stand-by circuit 1 automatically, and equipment enters standby mode of operation, waits for and accepts next power supply control command.
The push-button switch 17 in parallel with auxiliary relay contact 12 was used for direct-drive power relay 15 when reserve battery 3 lost efficacy, start television set.
According to concrete application, the Alternating Current Power Supply Vcc1 of standby power 11 can directly replace with photocell.
Standby power 11 can also directly adopt general dry battery, at this moment can remove diode D1, D2, D3, D4 and resistance R 1, R2.
Technical scheme of the present invention can also be directly used in other electronic equipment with similar operational mode.Effect of the present invention:
Guaranteed television set to be carried out the global function operation, for the user provides operation to greatest extent convenient with remote controller; Because power control function is separated from function control circuit, super low-power consumption stand-by circuit is achieved, and stand-by power consumption drops to has only following extremely low-level of several milliwatts, uses battery to become possibility as the standby power of television set; The design complexity of low-power consumption standby circuit and accessory power supply greatly reduces simultaneously, and the design of circuit is simplified; Adopt the control model of relay, can reduce the excitation power consumption of standby power greatly, can select for use power relay to increase the insulation spacing of contact again relay.Under standby mode, disconnect and being electrically connected of city's electrical network, increased substantially the standby safety performance of television set.
Obvious social benefit: because easy to operate, safer, the competitiveness of product in market strengthens, and the economic benefit of producer is promoted; Reliability of products improves, and spoilage descends, and has reduced the expenditure of producer and user's maintenance cost.
Claims (5)
- One kind can cold shutoff again can warm start TV set power, it is characterized in that: main power source 2 provides one tunnel DC power supply to stand-by circuit 1; Standby power 11 its outputs that this power supply, reserve battery 3 and power supply switch circuit 4 constitute receive respectively that order receives 5, on the coil J of intelligent electric source controller 6, auxiliary relay 10; This power supply is also directly received the input port of intelligent electric source controller 6; Order receives 5 output and links to each other with intelligent electric source controller 6 with level match 9 circuit, and television set function control circuit 7 is received in the output of level matching circuit 9, level match 9 circuit and the same power supply of television set function control circuit 7 employings; The output of intelligent electric source controller 6 meets the coil J of auxiliary relay 10 by driver 8, and the coil ZC of the contact 12 power controlling relays 15 of auxiliary relay 10 is again by the electric main of contact 13, the 14 control main power sources 2 of power relay 15.
- 2. according to claim 1 a kind of can cold shutoff again can warm start TV set power, it is characterized in that: one tunnel DC power supply Vccl of main power source 2 outputs links to each other with the anode of diode D1, D2, D3, the negative electrode of D3 links to each other with rechargeable battery B1, diode D4 through resistance R 1, the negative electrode of D4 with receive single-chip microcomputer U1 after the negative electrode of D1 links to each other, order receives on the coil J of a U3, power monitoring chip U2 and relay 10.The input of the negative electrode connecting resistance R2 of D2 and U1, the output of U2 connects another input of U1.The drain electrode connecting resistance R3 of T2 and function control circuit 7, another termination power Vcc 2 of R3 constitutes level match 9 circuit.The grid of T2 and the input of U1 are received in the output of U3.The output of single-chip microcomputer U1 is received driver 8 grid of T1 just, the drain electrode of T1 is received on the end of auxiliary relay 10 coil J, the ends A of the contact 12 of relay 10, B receive respectively on the input of the end of coil ZC of power relay 15 and AC power, and two contacts 13,14 of power relay 15 are connected on respectively on two AC power incoming lines of main power source 2.
- 3. according to claim 1 a kind of can cold shutoff again can warm start TV set power, it is characterized in that: the Alternating Current Power Supply Vcc1 of standby power 11 can directly replace with photocell.
- 4. according to claim 1 a kind of can cold shutoff again can warm start TV set power, it is characterized in that: standby power 11 can directly adopt general dry battery.
- 5. according to claim 1 a kind of can cold shutoff again can warm start TV set power, it is characterized in that: technical scheme of the present invention can also be directly used in other electronic equipment with similar operational mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01139782 CN1423479A (en) | 2001-12-03 | 2001-12-03 | Television receiver power source capable of cold cut off and hot start |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01139782 CN1423479A (en) | 2001-12-03 | 2001-12-03 | Television receiver power source capable of cold cut off and hot start |
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| Publication Number | Publication Date |
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| CN1423479A true CN1423479A (en) | 2003-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01139782 Pending CN1423479A (en) | 2001-12-03 | 2001-12-03 | Television receiver power source capable of cold cut off and hot start |
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| CN (1) | CN1423479A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466702C (en) * | 2004-06-28 | 2009-03-04 | 三星电子株式会社 | Display device and control method thereof |
| US8159621B2 (en) | 2005-12-08 | 2012-04-17 | Princeton Technology Corporation | Video and audio system capable of saving electric power |
| CN102474188A (en) * | 2009-07-02 | 2012-05-23 | 罗姆股份有限公司 | Power-supply control device, power supply system, and electronic device |
| CN1988630B (en) * | 2005-12-20 | 2012-06-20 | 普诚科技股份有限公司 | Power-saving audio-visual system |
-
2001
- 2001-12-03 CN CN 01139782 patent/CN1423479A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466702C (en) * | 2004-06-28 | 2009-03-04 | 三星电子株式会社 | Display device and control method thereof |
| US8159621B2 (en) | 2005-12-08 | 2012-04-17 | Princeton Technology Corporation | Video and audio system capable of saving electric power |
| CN1988630B (en) * | 2005-12-20 | 2012-06-20 | 普诚科技股份有限公司 | Power-saving audio-visual system |
| CN102474188A (en) * | 2009-07-02 | 2012-05-23 | 罗姆股份有限公司 | Power-supply control device, power supply system, and electronic device |
| CN102474188B (en) * | 2009-07-02 | 2015-06-10 | 罗姆股份有限公司 | Power-supply control device, power supply system, and electronic device |
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