CN102955062A - Electronic device - Google Patents
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- CN102955062A CN102955062A CN2011102509173A CN201110250917A CN102955062A CN 102955062 A CN102955062 A CN 102955062A CN 2011102509173 A CN2011102509173 A CN 2011102509173A CN 201110250917 A CN201110250917 A CN 201110250917A CN 102955062 A CN102955062 A CN 102955062A
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Abstract
The invention relates to an electronic device. The electronic device comprises an alternating current source input end, a detection unit, a control unit and a power supply indicator circuit, wherein the alternating current source input end is used for receiving an alternating current source signal; the control unit is electrically connected with the detection unit and the power supply indicator circuit respectively; the detection unit is used for detecting whether the alternating current source input end receives the alternating current source signal; when the detection unit detects that the electronic device receives the alternating current source signal, the control unit outputs a control signal to control conduction of the power supply indicator circuit; and when the detection unit detects that the electronic device stops receiving the alternating current source signal, the control unit outputs the control signal to control cut-off of the power supply indicator circuit.
Description
Technical field
The present invention relates to a kind of electronic installation with power indicating circuit.
Background technology
Development along with science and technology, each electronic product (such as display, host computer, notebook computer, DVD, computer hard disc and audio/video player etc.) is little by little more and more used in people's work and life, has become an important problem so that receive power supply signal how for those electronic products of reminding user.
Present electronic product all needs to dispose a power indicating circuit usually, this power indicating circuit all is connected with the main power circuit that civil power alternating current source signal is changed in electronic product inside, and the automatic power supply circuit obtains a power supply signal after the user is with the power button switch gating on the electronic product, thereby send information, emission of light for example, perhaps after the user disconnects the power button switch on the electronic product, stop the automatic power supply circuit and obtain power supply signal, and stop emission of light.Yet, when electronic product in working order and alternating current source signal when inputting suddenly, because the electricity ring that the electronic component in the main power circuit is remaining needs a process of slowly discharging, then this power indicating circuit also will postpone certain hour and just can end and stop to send information, namely this power indicating circuit state that this alternating current source signal stops to input in the electronic installation that can't make an immediate response causes the user false judgment to occur when operation.
Summary of the invention
Can't the summary responses electronic installation whether receive the technical matters of alternating current source signal for solving the prior art power indicating circuit, be necessary to provide a kind of electronic installation, whether its power indicating circuit can receive the alternating current source signal by this electronic installation of immediate reaction.
A kind of electronic installation, it comprises an alternating current source input end, a detecting unit, a control module and a power indicating circuit.This alternating current source input end is used for receiving an alternating current source signal, this control module is electrically connected with this power indicating circuit with this detecting unit respectively, this detecting unit is used for this alternating current source input end of detecting and whether receives this alternating current source signal, when detecting unit detects this electronic installation when receiving this alternating current source signal, this control module is exported a control signal and is controlled this power indicating circuit conducting, when detecting unit detects this electronic installation when stopping to receive this alternating current source signal, this control module is exported this control signal and is controlled this power indicating circuit cut-off.
A kind of electronic installation, it comprises an alternating current source input end, a detecting unit, a control module, a power indicating circuit and a processing unit.This alternating current source input end is used for receiving an alternating current source signal, this control module respectively with this detecting unit, this processing unit is electrically connected, this processing unit is electrically connected with this power indicating circuit, this detecting unit is used for this alternating current source input end of detecting and whether receives this alternating current source signal, when detecting unit detects this electronic installation when receiving this alternating current source signal, this control module output one controls signal to this processing unit, this processing unit output one controls signal to this power indicating circuit and controls this power indicating circuit conducting, when detecting unit detects this electronic installation when stopping to receive this alternating current source signal, this control module stops to export this control signal, and this processing unit is exported this control signal and controlled this power indicating circuit cut-off.
Compared to prior art, detecting unit is directly detected electronic installation and whether is received the alternating current source signal, and control module is directly controlled diode in the power indicating circuit according to the detecting result and is lighted or extinguish, thereby according to electronic installation whether the input of alternating current source is arranged rapidly, exactly and control the duty of power indicating circuit, for example conducting is lighted or is ended and extinguish.
Description of drawings
Fig. 1 is the circuit block diagram of electronic installation one preferred embodiments of the present invention.
Fig. 2 is particularly circuit structure diagram of electronic installation shown in Figure 1.
Fig. 3 is the circuit block diagram of a kind of embodiment of change of electronic installation shown in Figure 1.
Fig. 4 is the particular circuit configurations figure of electronic installation shown in Figure 3.
Fig. 5 is the circuit block diagram of the another kind change embodiment of electronic installation shown in Figure 1.
Fig. 6 is the particular circuit configurations figure of electronic installation shown in Figure 5.
The main element symbol description
Electronic installation 10
Alternating current source signal receiving end 1011
Detecting unit 100
Sense terminal 111
Detection signal output terminal 113
Circuit for detecting 110
The first control utmost point 115
The first conduction utmost point 116
The second conduction utmost point 117
Rectification and voltage division circuit 112
Controlled voltage stabilizing diode D1
Diode D2
Divider resistance R1, R2
Mu balanced circuit 1121
Capacitor C 1, C2
Bigoted resistance R 3, R4, R5, R6
Detection signal receiving end 201
The first d. c. voltage signal input end 202
Control signal output terminal 203
The first on-off circuit 210
The first conduction terminals 231
The second reference edge 232
The second conduction terminals 233
The 3rd conduction terminals 234
The second d. c. voltage signal input end 235
Photoelectrical coupler P1
Light emitting diode D3
The first input circuit 270
The first control utmost point 251
The first conduction utmost point 252
The second conduction utmost point 253
The second bigoted circuit 255
The 3rd on-off circuit 260
The first control utmost point 261
The first conduction utmost point 262
The second conduction utmost point 263
The first d. c. voltage signal VCC
The second d. c. voltage signal VDD
Transistor Q1, Q2, Q3
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
See also Fig. 1, it is for the circuit block diagram of electronic installation one embodiment of the present invention.This electronic installation 10 comprises a power supply unit 101, processing unit 102 and performance element 103.
Wherein, this power supply unit 101 is electrically connected with this processing unit 102 and performance element 103 respectively, and this performance element 103 is electrically connected with this processing unit 102.This power supply unit 101 comprises an alternating current source signal receiving end 1011, it is used for receiving an alternating current source signal, this power supply unit 101 carries out voltage transitions with this alternating current source signal, and export the alternating current source signal after turning to processing unit 102 and performance element 103, think that processing unit 102 and performance element 103 provide work required electric energy.Performance element 103 is worked under the control of processing unit 102.Particularly, this electronic installation 10 can be a computer monitor, a host computer, a TV or audio/video playing device.This power supply unit 101 can be for the voltage conversion circuit that ac signal is converted to dc signal or voltage transitions integrated circuit, and performance element 103 can be that audio driven is play module, video drive is play module, backlight module etc.Processing unit 102 is used for the working condition of control performance element 103 each module, and processing unit 102 can be microprocessor or little processing integrated circuit.In the present embodiment, describe as a display as example take this electronic installation 10, this alternating current source signal can be a civil power AC signal.
In the present embodiment, electronic installation 10 also comprises a detecting unit 100, a control module 200 and a power indicating circuit 300.Control module 200 is electrically connected with detecting unit 100 and power indicating circuit 300 respectively.Whether the power supply unit 101 that detecting unit 100 is used for detecting electronic installation 10 receives this alternating current source signal, and will detect the result and export control module 200 to, control module 200 is detected the result optionally so that power indicating circuit 300 conductings or cut-off according to this, and then so that the pilot lamp in the power indicating circuit light or extinguish, thereby whether display electronics assemblies 10 receives the alternating current source signal.
See also Fig. 2, detecting unit 100 comprises a sense terminal 111, detection signal output terminal 113 and a circuit for detecting 110, this sense terminal 111 is electrically connected on alternating current source signal receiving end 1011, detection signal output terminal 113 is electrically connected on control module 200, and circuit for detecting 110 is electrically connected between this sense terminal 111 and the detection signal output terminal 113.Whether circuit for detecting 110 is used for the alternating current source signal receiving end 1011 that detecting is electrically connected with this sense terminal 111 input of alternating current source signal, and will detect accordingly as a result that self-detection signal output part 113 exports control module 200 to.
Particularly, circuit for detecting 110 comprises that the one first control utmost point, 115, the one first conduction utmost points 116 and the one second conduction utmost point, 117, the first control utmost points 115 are electrically connected on sense terminal 111, perhaps as sense terminal 111; The first conduction utmost point 116 is electrically connected on detection signal output terminal 113, perhaps as detection signal output terminal 113; The second conduction utmost point 117 is electrically connected on earth terminal.When the first electric signal of receiving of the control utmost point 115 during less than first scheduled voltage, these circuit for detecting 110 cut-offs, the first conduction utmost point 116 and 117 disconnections of the second conduction utmost point; When the first electric signal of receiving of the control utmost point 115 is greater than or equal to this scheduled voltage, these circuit for detecting 110 conductings, the first conduction utmost point 116 is communicated with the second conduction utmost point 117, and second conducts the utmost point 117 transfers to first with ground voltage and conducts the utmost point 116.In the present embodiment, circuit for detecting 110 can adopt a controlled voltage stabilizing diode D1 to realize, wherein, the control utmost point of this voltage stabilizing diode is as this first control utmost point 115, the negative electrode of controlled voltage stabilizing diode D1 is as the first conduction utmost point 116, the anode of controlled voltage stabilizing diode D1 is as the second conduction utmost point 117, and this first scheduled voltage can be the reverse-conducting voltage of this controlled voltage stabilizing diode, for example 3V.
Preferably, detecting unit 100 also comprises a rectification and voltage division circuit 112, and this rectification circuit is electrically connected between alternating current source signal receiving end 1011 and the circuit for detecting 110, to be used for that this alternating current source signal is carried out rectification and voltage division.Wherein, this rectification and voltage division circuit 112 comprises a diode D2 and two divider resistance R1, R2, the anode of this diode D2 is electrically connected alternating current source signal receiving end 1011, the cathodic electricity of diode D2 and divider resistance R1, the R2 ground connection of sequentially connecting, and divider resistance R1 controls the utmost point 115 with the node between the R2 with first of circuit for detecting 110 and is electrically connected.
Preferably, rectification and voltage division circuit 112 also further comprises a mu balanced circuit 1121, to be used for the stable voltage signal that loads on sense terminal 111.Mu balanced circuit 1121 comprises capacitor C 1, and capacitor C 1 is electrically connected on the two ends of divider resistance R2.
Further, detecting unit 100 also comprises a reduction voltage circuit 114, this reduction voltage circuit 114 comprises a coupling capacitance C2, and this coupling capacitance C2 is electrically connected between alternating current source signal receiving end 1011 and the rectification and voltage division circuit 112, to be used for that this alternating current source signal is carried out step-down.For example, this alternating current source signal AC is 220V, and then this reduction voltage circuit 114 is that AC is the AC signal of 30V with its step-down.
The first on-off circuit 210 is electrically connected between detection signal receiving end 201, order wire circuit 230 and the one first d. c. voltage signal input end 202, and the first d. c. voltage signal input end 202 is used for receiving one first d. c. voltage signal VCC.The first on-off circuit 210 optionally exports one first switching signal to order wire circuit 230 according to this detecting result, thus conducting and the cut-off of control order wire circuit 230.The first on-off circuit 210 comprises one first control end 212, one first reference edge 213 and the first switching signal output terminal 214.The first control end 212 is electrically connected on detection signal receiving end 201, the first reference edges 213 and is electrically connected on the first d. c. voltage signal input end 202, the first switching signal output terminals 214 and is electrically connected on order wire circuit 230.
Wherein, when the difference of the voltage that is loaded on the first control end 212 and the first reference edge 213 is less than or equal to second predetermined value, 210 conductings of the first on-off circuit, the first reference edge 213 is communicated with the first switching signal output terminal 214, this first d. c. voltage signal VCC that the first reference edge 213 loads conducts to the first switching signal output terminal 214, and this first d. c. voltage signal VCC is exported as the first switching signal; When the difference of the voltage that is loaded on the first control end 212 and the first reference edge 213 during greater than this second predetermined value, 210 cut-offs of the first on-off circuit, the first reference edge 213 and the first switching signal output terminal 214 disconnect, and the first switching signal output terminal 214 stops to export this first switching signal.In the present embodiment, this second predetermined value is preferably 0.7V.
Particularly, the first on-off circuit 210 comprises a switching transistor Q1, and this switching transistor comprises the one first control utmost point 215, the one first conduction utmost point 216 and the one second conduction utmost point 217.The first control utmost point 215 is electrically connected on the first control end 212, perhaps as the first control end 212; The first conduction utmost point 216 is electrically connected on the first reference edge 213, perhaps as the first reference edge 213; The second conduction utmost point 217 is electrically connected on the first switching signal output terminal 214, perhaps as the first switching signal output terminal 214.
Preferably, switching transistor Q1 can adopt a P transistor npn npn to realize, wherein, the base stage of this transistor Q1 is as this first control utmost point 215, the emitter of this transistor Q1 is as the first conduction utmost point 216, the collector of this transistor Q1 is as the second conduction utmost point 217, and this second predetermined value can be ground voltage 0.7V.
Preferably, the first on-off circuit 210 also comprises one first bigoted circuit 211, to be used for improving the driving force of the first on-off circuit 210.Wherein, bigoted circuit 211 comprises two bigoted resistance R 3, R4, and resistance R 3 is electrically connected between the first d. c. voltage signal input end 202 and the first control end 212, and resistance R 4 is electrically connected between the first d. c. voltage signal input end 202 and the first reference edge 213.
Particularly, order wire circuit 230 comprises the first conduction terminals 231, the second reference edge 232, the second conduction terminals 233 and the 3rd conduction terminals 234.When the difference of the voltage that loads when the first conduction terminals 231 and the second reference edge 232 is greater than or equal to the 3rd predetermined value, order wire circuit 230 conductings, the second conduction terminals 233 is communicated with the 3rd conduction terminals 234; The difference of the voltage that loads when the first conduction terminals 231 and the second reference edge 232 is during less than the 3rd predetermined value, order wire circuit 230 cut-offs, this second conduction terminals 233 and 234 disconnections of the 3rd conduction terminals.The 3rd predetermined value can be 0.2V.
In the present embodiment, the first conduction terminals 231 is electrically connected on the first switching signal output terminal 214 of this first on-off circuit 210, to receive this first switching signal; The second reference edge 232 ground connection; The second conduction terminals 233 is electrically connected on one second d. c. voltage signal input end 235, to receive one second d. c. voltage signal VDD; The 3rd conduction terminals 234 is electrically connected on control signal output terminal 203.When the first conduction terminals 231 receives the first d. c. voltage signal VCC as this first switching signal, order wire circuit 230 conductings, the second d. c. voltage signal VDD transfers to the 3rd conduction terminals 234, the three conduction terminals 234 from the second conduction terminals 233 this second d. c. voltage signal VDD is exported as this control signal; When the first conduction terminals 231 does not receive this first switching signal, order wire circuit 230 cut-offs, the second conduction terminals 233 and the 3rd conduction terminals 234 disconnect, and the 3rd conduction terminals 234 stops to export this control signal.
In the present embodiment, order wire circuit 230 adopts a photoelectrical coupler P1 to realize, and this photoelectrical coupler P1 adopts the array mode of light emitting diode (not shown) and phototriode (not shown), wherein, the anode of this light emitting diode is as the first conduction terminals 231, the negative electrode of this light emitting diode is as the second reference edge 232, and the collector of phototriode is as the second conduction terminals 233, and the emitter of phototriode is as the 3rd conduction terminals 234.
Compared to prior art, whether detecting unit 100 directly detecting electronic installation 10 receives the alternating current source signal, and control module 200 is directly controlled diode in the power indicating circuit 300 according to the detecting results and is lighted or extinguish, thereby according to electronic installation 10 whether the input of alternating current source is arranged rapidly, exactly and control the duty of power indicating circuit 300, for example conducting is lighted or is ended and extinguish.
See also Fig. 3, it is a kind of change embodiment of electronic installation 10 shown in Figure 1.Particularly, electronic installation shown in Figure 3 10 mainly is with the difference of electronic installation shown in Figure 1: detecting unit 100 is integrated into power supply unit 101 with the first on-off circuit 210 in the control module 200; The second conduction terminals 233 of order wire circuit 230 is electrically connected to processing unit 102 in the control module 200.The duty of control module 200 power indicating circuit 300 under the control of processing unit 102 is for example controlled power indicating circuit 300 conductings or cut-off.
Preferably, control module 200 also comprises a second switch circuit 250, second switch circuit 250 is electrically connected on this order wire circuit 230, between processing unit 102 and the control signal output terminal 203, this second switch circuit 250 is optionally conducting or cut-off under the control of order wire circuit 230, and when second switch circuit 250 is in conducting state, processing unit 102 outputs one drive signal extremely from second switch circuit 250, and should drive signal and export power indicating circuit 300 as control signal to from controlling signal output part 203, with conducting or the cut-off of control power indicating circuit 300.
Preferably, control module 200 comprises that also the second bigoted circuit 255, the second bigoted circuit 255 are connected between processing unit 102 and the second switch circuit 250, to improve the driving force of second switch circuit 250.The second bigoted circuit 255 comprises two bigoted resistance R 5, R6, and wherein, resistance R 5 is electrically connected between processing unit 102 and the first control utmost point 251, and resistance R 6 is electrically connected between processing unit 102 and the first conduction utmost point 252.
Preferably, electronic installation 10 also comprises a first input end 271 and the first input circuit 270.This first input circuit 270 is electrically connected with processing unit 102 by first input end 271.
This second switch circuit 250 is electrically connected between order wire circuit 230, processing unit 102 and the power indicating circuit 300, processing unit 102 is according to control signal and the first input circuit 270 inputs first input signal of order wire circuit 230 outputs, by conducting and the cut-off of second switch circuit 250 control power indicating circuits 300.
See also Fig. 4, it is the particular circuit configurations synoptic diagram of electronic installation 10 shown in Figure 3.Particularly, the first conduction terminals 231 of order wire circuit 230 is electrically connected on the first switching signal output terminal 214, the second reference edge 232 ground connection, the second conduction terminals 233 is electrically connected to second switch circuit 250 and the second bigoted circuit 255, the 3rd conduction terminals 234 ground connection, and has the ground connection reference voltage, 0V.When the first conduction terminals 231 receives the first switching signal of ground signalling, the difference of the ground signalling (0V) that the first d. c. voltage signal VCC(3V that its first conduction terminals 231 loads) loads with the second reference edge 232 is greater than the second predetermined value, order wire circuit 230 conductings, the second conduction terminals 233 is communicated with the 3rd conduction terminals 234, the second conduction terminals 233 outputs one conducted signal is to second switch circuit 250, with 250 conductings of control second switch circuit.When this first conduction terminals 231 does not receive this first switching signal, order wire circuit 230 cut-offs stop to export this conducted signal to this second switch circuit 250.
Further, this first input circuit 270 comprises a keyswitch K1, and when keyswitch K1 was closed, this first input circuit 270 was exported the first input signal of an electronegative potential to processing unit 102 by first input end 271; When keyswitch K1 disconnected, this first input end 271 had a noble potential and exports processing unit 102 to as the first input signal.In the present embodiment, this keyswitch can be K1 power switch on the display.
See also Fig. 5, it is the another kind change embodiment of electronic installation 10 shown in Figure 1.Particularly, electronic installation shown in Figure 5 10 mainly is with the difference of electronic installation shown in Figure 1: detecting unit 100 and the first on-off circuit 210 are integrated into power supply unit 101; Order wire circuit 230 is electrically connected to control signal output terminal 203, and control signal output terminal 203 is electrically connected on processing unit 102.
Preferably, control module 200 also comprises one the 3rd on-off circuit 260, the 3rd on-off circuit 260 is electrically connected between the first on-off circuit 210 and the order wire circuit 230, to be used for receiving this first switching signal of this first on-off circuit output, and export one the 3rd switching signal to order wire circuit 230 according to this first switching signal, order wire circuit 230 according to the 3rd switching signal output corresponding control signal to control signal output terminal 203 and processing unit 102.
See also Fig. 6, it is the particular circuit configurations figure of electronic installation 10 shown in Figure 5.
Particularly, the 3rd on-off circuit 260 comprises the first control utmost point 261, the first conduction utmost point 262 and the second conduction utmost point 263, this the first control utmost point 261 is electrically connected on these the first switching signal output terminal 214, the first conduction utmost points 262 and is electrically connected on the second reference edge 232, the second conduction utmost points 263 ground connection.Wherein, when this first control utmost point 261 receives this first d. c. voltage signal VCC as this first switching signal, 260 conductings of the 3rd on-off circuit, this the first conduction utmost point 262 and second conducts the utmost point 263 and is communicated with, and with this ground signalling as second reference edge 232 of the 3rd switching signal to order wire circuit 230; When this first control utmost point 261 does not receive this first switching signal, the cut-off of the 3rd on-off circuit 260, this first conduction utmost point 262 and 263 disconnections of the second conduction utmost point stop to export the 3rd switching signal.Preferably, the 3rd on-off circuit adopts a N-type metal-oxide-semiconductor Q3 to realize, wherein, the grid of metal-oxide-semiconductor Q3 is as this first control utmost point 261, and the source electrode of metal-oxide-semiconductor Q3 is as this first conduction utmost point 262, and the drain electrode of metal-oxide-semiconductor is as this second conduction utmost point 263.
The first conduction terminals of order wire circuit 230 is electrically connected on this first d. c. voltage signal input end 202, this second reference edge 232 is electrically connected on the 3rd on-off circuit 260 and receives the 3rd switching signal, the second conduction terminals 233 is electrically connected on processing unit 102, the three conduction terminals 234 ground connection.When the second reference edge 232 receives the 3rd switching signal of ground signalling conduct, the difference of the ground signalling (0V) that the first d. c. voltage signal VCC(3V that its first conduction terminals 231 loads) loads with the second reference edge 232 is greater than the second predetermined value, order wire circuit 230 conductings, the second conduction terminals 233 is communicated with the 3rd conduction terminals 234, and the second conduction terminals 233 output ground signallings are for controlling signal to control signal output terminal 203.
Further, processing unit 102 also includes timing unit 105, timing unit 105 is used for that processing unit 102 is begun to receive the time that time of this control signal and processing unit 102 stop to receive this control signal and carries out timing, and after timing is finished again corresponding output drive signal to power indicating circuit 300, thereby control power indicating circuit 300 conducting or cut-off.Timing unit 105 can adopt hardware timer to realize, also can adopt the timing of software program to realize.The timing time of timing unit 105 can be 2 seconds (2S).
Claims (16)
1. electronic installation, it is characterized in that: this electronic installation comprises an alternating current source input end, one detecting unit, one control module and a power indicating circuit, this alternating current source input end is used for receiving an alternating current source signal, this control module is electrically connected with this power indicating circuit with this detecting unit respectively, this detecting unit is used for this alternating current source input end of detecting and whether receives this alternating current source signal, when detecting unit detects this electronic installation when receiving this alternating current source signal, this control module is exported a control signal and is controlled this power indicating circuit conducting, when detecting unit detects this electronic installation when stopping to receive this alternating current source signal, this control module is exported this control signal and is controlled this power indicating circuit cut-off.
2. electronic installation according to claim 1, it is characterized in that, this detecting unit comprises a sense terminal, one detection signal output terminal and a circuit for detecting, this circuit for detecting comprises the one first control utmost point, the first conduction utmost point and the second conduction utmost point, this the first control utmost point is electrically connected on this sense terminal, this the second conduction utmost point ground connection, this the first conduction utmost point is electrically connected on the detection signal output terminal, when this sense terminal receives this alternating current source signal and during greater than first predetermined value, this circuit for detecting conducting, this the first conduction utmost point is communicated with the second conduction utmost point, and the first conduction utmost point obtains ground voltage and exports this ground voltage to control module as the detecting result from this detection signal output terminal from the second conduction utmost point; When this detecting first conduction utmost point does not receive this alternating current source signal or this alternating current source signal less than this first predetermined value, this circuit for detecting cut-off, this detection signal output terminal stops to export this detecting result.
3. electronic installation according to claim 2, it is characterized in that, this detecting unit also comprises a rectification and voltage division circuit, this rectification and voltage division circuit comprises a diode and two divider resistances, the anode of this diode is electrically connected on this alternating current source input end, the negative electrode of this diode ground connection of connecting with these two divider resistances successively, and the node in these two resistance is electrically connected with the first control utmost point of this circuit for detecting.
4. electronic installation according to claim 3 is characterized in that, this rectification and voltage division circuit also comprises a mu balanced circuit, and this mu balanced circuit comprises an electric capacity of voltage regulation, and electric capacity of voltage regulation one end is electrically connected the other end ground connection of this electric capacity of voltage regulation with this first control utmost point.
5. according to claim 3 or 4 described electronic installations, it is characterized in that, this circuit for detecting is a controlled voltage stabilizing diode, the control utmost point of this controlled voltage stabilizing diode is as the first control utmost point, the anode of this zener diode is as this first conduction utmost point, and the negative electrode of this voltage stabilizing diode is as the second conduction utmost point.
6. electronic installation according to claim 1, it is characterized in that, this control module comprises one first on-off circuit, this on-off circuit comprises one first control end, one first reference edge and the first switching signal output terminal, the first control end of this on-off circuit is electrically connected with this circuit for detecting, this first reference edge is electrically connected with one first dc supply input, and receive one first d. c. voltage signal, this the first switching signal output terminal is used for output one first switching signal, when the difference of the voltage that is loaded on the first control end and the first reference edge is less than or equal to second predetermined value, the first on-off circuit conducting, the first reference edge is communicated with the first switching signal output terminal, this first dc power signal that the first reference edge loads conducts to the first switching signal output terminal, and this first d. c. voltage signal is exported as the first switching signal; When the difference of the voltage that is loaded on the first control end and the first reference edge during greater than this second predetermined value, the cut-off of the first on-off circuit, the first reference edge and the disconnection of the first switching signal output terminal, the first switching signal output terminal stops to export this first switching signal.
7. described electronic installation according to claim 6, it is characterized in that, this control module also comprises an order wire circuit, this order wire circuit comprises one first conduction terminals, one second reference edge, one second conduction terminals and one the 3rd conduction terminals, this first conduction terminals is electrically connected with this first switching signal output terminal, this the second reference edge ground connection, this second conduction terminals is electrically connected one second d. c. voltage signal input end, this the second dc power signal input end is used for receiving one second d. c. voltage signal, the 3rd conduction terminals is electrically connected on this power indicating circuit, when the difference of the voltage that loads when this first conduction terminals and this second reference edge is greater than or equal to the 3rd predetermined value, this order wire circuit conducting, this second conduction terminals is communicated with the 3rd conduction terminals, and the 3rd conduction terminals exports this second d. c. voltage signal to this power indicating circuit as this control signal; The difference of the voltage that loads when this first conduction terminals and this second reference edge is during less than the 3rd predetermined value, this order wire circuit cut-off, and this second conduction terminals and the disconnection of the 3rd conduction terminals, the 3rd conduction terminals stops to export this control signal.
8. described electronic installation according to claim 7, it is characterized in that, this order wire circuit is a photoelectrical coupler, this photoelectrical coupler comprises a light emitting diode and a phototriode, the anode of this light emitting diode is as this first conduction terminals, the negative electrode of this light-emitting diode is as this first reference edge, and the collector of this phototriode is as this two conduction terminals, and the emitter of this phototriode is as the 3rd conduction terminals.
9. electronic installation according to claim 6, it is characterized in that: this electronic installation further comprises a processing unit, this control module is electrically connected with this processing unit, this control module detects at this detecting unit and exports a conducted signal to processing unit when this electronic installation receives this alternating current source signal, this processing unit is after receiving this conducted signal, output one drives signal to control module, this control module should drive signal and export power indicating circuit to, control conducting or the cut-off of this power indicating circuit, this control module detects this electronic installation when not receiving this alternating current source signal at this detecting unit, this control module.
10. electronic installation according to claim 9, it is characterized in that, this control module also comprises an order wire circuit, this order wire circuit comprises one first conduction terminals, one second reference edge, one second conduction terminals and one the 3rd conduction terminals, this first conduction terminals is electrically connected with this first switching signal output terminal, this the second reference edge ground connection, this second conduction terminals is electrically connected on this processing unit, the 3rd conduction terminals ground connection, this electronic installation further comprises one first input circuit, when the difference of the voltage that loads when this first conduction terminals and this second reference edge is greater than or equal to the 3rd predetermined value, this order wire circuit conducting, this second conduction terminals is communicated with the 3rd conduction terminals, the 3rd conduction terminals exports a ground signalling to processing unit as conducted signal, and when this first input circuit was exported an input signal, this processing unit output one drove signal, and this control module should drive signal and export this power indicating circuit to and drive this power indicating circuit conducting or cut-off; The difference of the voltage that loads when this first conduction terminals and this second reference edge is during less than the 3rd predetermined value, this order wire circuit cut-off, this second conduction terminals and the 3rd conduction terminals disconnect, and the 3rd conduction terminals stops to export this conducted signal, and this control module is controlled this power indicating circuit cut-off.
11. electronic installation according to claim 10, it is characterized in that, this control module also comprises a second switch circuit, this second switch circuit comprises the one first control utmost point, the one first conduction utmost point and the second conduction utmost point, this the first control utmost point is electrically connected on the second conduction terminals, the first conduction utmost point is electrically connected on processing unit, the second conduction utmost point is electrically connected on power indicating circuit, when the first control utmost point receives this control signal, this second switch circuit turn-on, the first conduction utmost point is communicated with the second conduction utmost point, when the first control utmost point does not receive this conducted signal, this second switch circuit cut-off, the first conduction utmost point and the second conduction and disconnection.
12. electronic installation, it is characterized in that: this electronic installation comprises an alternating current source input end, one detecting unit, one control module, one power indicating circuit and a processing unit, this alternating current source input end is used for receiving an alternating current source signal, this control module respectively with this detecting unit, this processing unit is electrically connected, this processing unit is electrically connected with this power indicating circuit, this detecting unit is used for this alternating current source input end of detecting and whether receives this alternating current source signal, when detecting unit detects this electronic installation when receiving this alternating current source signal, this control module output one controls signal to this processing unit, this processing unit output one controls signal to this power indicating circuit and controls this power indicating circuit conducting, when detecting unit detects this electronic installation when stopping to receive this alternating current source signal, this control module stops to export this control signal, and this processing unit is exported this control signal and controlled this power indicating circuit cut-off.
13. electronic installation according to claim 12, it is characterized in that, this control module comprises one first on-off circuit, this on-off circuit comprises one first control end, one first reference edge and the first switching signal output terminal, the first control end of this on-off circuit is electrically connected with this circuit for detecting, this first reference edge is electrically connected with one first dc supply input, and receive one first d. c. voltage signal, this the first switching signal output terminal is used for output one first switching signal, when the difference of the voltage that is loaded on the first control end and the first reference edge is less than or equal to second predetermined value, the first on-off circuit conducting, the first reference edge is communicated with the first switching signal output terminal, this first dc power signal that the first reference edge loads conducts to the first switching signal output terminal, and this first d. c. voltage signal is exported as the first switching signal; When the difference of the voltage that is loaded on the first control end and the first reference edge during greater than this second predetermined value, the cut-off of the first on-off circuit, the first reference edge and the disconnection of the first switching signal output terminal, the first switching signal output terminal stops to export this first switching signal.
14. electronic installation according to claim 13, it is characterized in that, this control module also comprises an order wire circuit and one the 3rd on-off circuit, the 3rd on-off circuit is electrically connected on this first switching signal output terminal, this order wire circuit comprises one first conduction terminals, one second reference edge, one second conduction terminals and one the 3rd conduction terminals, this first conduction terminals is electrically connected one second dc power signal input end, this second reference edge is by the 3rd on-off circuit ground connection, this second conduction terminals is electrically connected on this processing unit, the 3rd conduction terminals ground connection, this processing unit is electrically connected with this power indicating circuit, this electronic installation further comprises one first input circuit, when the 3rd on-off circuit receives this first switching signal, the 3rd on-off circuit conducting, and export a ground signalling to this first reference edge as the 3rd switching signal, when the 3rd on-off circuit does not receive this first switching signal, the cut-off of the 3rd on-off circuit, the 3rd on-off circuit stops to export the 3rd switching signal to this first reference edge, when the difference of the voltage that loads when this first conduction terminals and this second reference edge is greater than or equal to the 3rd predetermined value, this order wire circuit conducting, this second conduction terminals is communicated with the 3rd conduction terminals, the 3rd conduction terminals exports a ground signalling to processing unit as this control signal, and when this first input circuit was exported an input signal, this processing unit was controlled this power indicating circuit conducting; The difference of the voltage that loads when this first conduction terminals and this second reference edge is during less than the 3rd predetermined value, this order wire circuit cut-off, this second conduction terminals and the 3rd conduction terminals disconnect, and the 3rd conduction terminals stops to export this control signal, and this processing unit is controlled this power indicating circuit cut-off.
15. electronic installation according to claim 14, it is characterized in that, the 3rd on-off circuit comprises the first control utmost point, the first conduction utmost point and the second conduction utmost point, this the first control utmost point is electrically connected on this first switching signal output terminal, this the first conduction utmost point is electrically connected on this second reference edge, this the second conduction utmost point ground connection, when this first control utmost point receives this first switching signal, the 3rd on-off circuit conducting, this the first conduction utmost point is communicated with the second conduction utmost point, and exports this ground signalling to second reference edge as the 3rd switching signal; When this first control utmost point does not receive this detection signal, the 3rd on-off circuit cut-off, this first conduction utmost point and the second conduction utmost point disconnection stop to export the 3rd switching signal.
16. electronic installation according to claim 12, it is characterized in that, this processing unit also comprises a timing unit, this timing unit is used for that this processing unit is begun to receive the time that time of this control signal and this processing unit stop to receive this conducted signal and carries out timing, and after timing is finished, this processing unit is exported this and is controlled signal to power indicating circuit, controls conducting or the cut-off of this power indicating circuit.
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| CN201110250917.3A CN102955062B (en) | 2011-08-29 | 2011-08-29 | Electronic device |
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| CN201110250917.3A CN102955062B (en) | 2011-08-29 | 2011-08-29 | Electronic device |
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| CN101436939A (en) * | 2007-11-13 | 2009-05-20 | 鸿富锦精密工业（深圳）有限公司 | Sensing apparatus for AC power supply |
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| DE2619639A1 (en) * | 1976-05-04 | 1977-11-17 | Licentia Gmbh | Electric load time or current monitoring - switches on timer only when current is being drawn by that load |
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| CN102955062B (en) | 2015-03-18 |
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Address after: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Applicant after: Qunkang Technology (Shenzhen) Co., Ltd. Applicant after: Innolux Display Group Address before: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Applicant before: Qunkang Technology (Shenzhen) Co., Ltd. Applicant before: Chimei Optoelectronics Co., Ltd. |
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