CN102955062B - Electronic device - Google Patents
Electronic device Download PDFInfo
- Publication number
- CN102955062B CN102955062B CN201110250917.3A CN201110250917A CN102955062B CN 102955062 B CN102955062 B CN 102955062B CN 201110250917 A CN201110250917 A CN 201110250917A CN 102955062 B CN102955062 B CN 102955062B
- Authority
- CN
- China
- Prior art keywords
- circuit
- pole
- conduction
- signal
- voltage
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
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
Along with the development of science and technology, each electronic product (as display, host computer, notebook computer, DVD, computer hard disc and audio/video player etc.) is little by little more and more applied in the work of people and life, and how make has become an important problem to reminding those electronic products of user to receive power supply signal.
Current electronic product all needs configuration one power indicating circuit usually, the main power circuit that mains source signal carries out changing all is connected with electronic product inside by this power indicating circuit, and automatic power supply circuit obtains a power supply signal after user is by the power button switch gating on electronic product, thus send information, such as emission of light, or after the power button switch on electronic product disconnects by user, stop automatic power supply circuit to obtain power supply signal, and stop emission of light.But, when electronic product in working order and alternating current source signal inputs suddenly time, because the electric ring that the electronic component in main power circuit is remaining needs a process of slowly discharging, then delay certain hour also just can end and stop sending information by this power indicating circuit, namely this power indicating circuit this alternating current source signal in electronic installation that cannot make an immediate response stops the state of input, causes user to occur false judgment when operating.
Summary of the invention
Whether cannot receive the technical matters of alternating current source signal by summary responses electronic installation for solving prior art power indicating circuit, be necessary to provide a kind of electronic installation, whether its power indicating circuit can receive 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 for receiving an alternating current source signal, this control module is electrically connected with this power indicating circuit with this detecting unit respectively, whether this detecting unit receives this alternating current source signal for detecting this alternating current source input end, when detecting unit detect this electronic installation receive this alternating current source signal time, this control module exports a control signal and controls this power indicating circuit conducting, when detecting unit detects this electronic installation stopping this alternating current source signal of reception, this control module exports this control signal and controls the cut-off of this power indicating circuit.
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 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, whether this detecting unit receives this alternating current source signal for detecting this alternating current source input end, when detecting unit detect this electronic installation receive this alternating current source signal time, this control module exports one and 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 stopping this alternating current source signal of reception, this control module stops exporting this control signal, this processing unit exports this control signal and controls the cut-off of this power indicating circuit.
Compared to prior art, detecting unit is directly detected electronic installation and whether is received alternating current source signal, and control module is lighted according to the detecting result diode directly controlled in power indicating circuit or extinguishes, thus whether have the input of alternating current source according to electronic installation and control the duty of power indicating circuit rapidly, exactly, such as conducting is lighted or is ended extinguishing.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of electronic installation one better embodiment of the present invention.
Fig. 2 is the circuit structure diagram particularly of the electronic installation shown in Fig. 1.
Fig. 3 is a kind of circuit block diagram changing embodiment of the electronic installation shown in Fig. 1.
Fig. 4 is the particular circuit configurations figure of the electronic installation shown in Fig. 3.
Fig. 5 is the circuit block diagram of the another kind change embodiment of electronic installation shown in Fig. 1.
Fig. 6 is the particular circuit configurations figure of the electronic installation shown in Fig. 5.
Main element symbol description
Electronic installation 10
Power supply unit 101
Alternating current source signal receiving end 1011
Processing unit 102
Performance element 103
Detecting unit 100
Sense terminal 111
Detection signal output terminal 113
Circuit for detecting 110
First controls pole 115
First conduction pole 116
Second conduction pole 117
Rectification and voltage division circuit 112
Controlled voltage stabilizing diode D1
Diode D2
Divider resistance R1, R2
Mu balanced circuit 1121
Electric capacity C1, C2
Control module 200
Bigoted resistance R3, R4, R5, R6
Detection signal receiving end 201
First d. c. voltage signal input end 202
Control signal output terminal 203
First on-off circuit 210
Order wire circuit 230
First conduction terminals 231
Second reference edge 232
Second conduction terminals 233
3rd conduction terminals 234
Second d. c. voltage signal input end 235
Photoelectrical coupler P1
Power indicating circuit 300
Light emitting diode D3
First input circuit 270
Second switch circuit 250
First controls pole 251
First conduction pole 252
Second conduction pole 253
Second bigoted circuit 255
3rd on-off circuit 260
First controls pole 261
First conduction pole 262
Second conduction pole 263
Timing unit 105
First d. c. voltage signal VCC
Second d. c. voltage signal VDD
Transistor Q1, Q2, Q3
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, it is 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 for receiving an alternating current source signal, this alternating current source signal is carried out voltage transitions by this power supply unit 101, 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 the electric energy needed for work.Performance element 103 works 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 voltage conversion circuit for ac signal being converted to DC signal or voltage transitions integrated circuit, and performance element 103 can be that audio driven plays module, video drive plays module, backlight module etc.Processing unit 102 is for controlling the working condition of each module in performance element 103, and processing unit 102 can be microprocessor or micro-process integrated circuit.In the present embodiment, be that a display is described for this electronic installation 10, this alternating current source signal can be a mains signal.
In the present embodiment, electronic installation 10 also comprises detecting unit 100, 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 detecting unit 100 receives this alternating current source signal for the power supply unit 101 detecting electronic installation 10, and export detecting result to control module 200, control module 200 optionally makes power indicating circuit 300 conducting or cut-off according to this detecting result, and then make the pilot lamp in power indicating circuit light or extinguish, thus whether display electronics assemblies 10 receives 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 detection signal output terminal 113.Whether circuit for detecting 110 has the input of alternating current source signal for detecting the alternating current source signal receiving end 1011 be electrically connected with this sense terminal 111, and exports detecting result self-detection signal output part 113 to control module 200 accordingly.
Particularly, circuit for detecting 110 comprises one first and controls pole 115, and one first conduction pole 116 and one second conduction pole 117, first control pole 115 and is electrically connected on sense terminal 111, or as sense terminal 111; First conduction pole 116 is electrically connected on detection signal output terminal 113, or as detection signal output terminal 113; Second conduction pole 117 is electrically connected on earth terminal.When first control the electric signal that receives of pole 115 be less than first scheduled voltage time, this circuit for detecting 110 ends, and the first conduction pole 116 and second is conducted pole 117 and disconnected; When the electric signal received when the first control pole 115 is greater than or equal to this scheduled voltage, this circuit for detecting 110 conducting, the first conduction pole 116 and second is conducted pole 117 and is communicated with, and ground voltage is transferred to the first conduction pole 116 by the second conduction pole 117.In the present embodiment, circuit for detecting 110 can adopt a controlled voltage stabilizing diode D1 to realize, wherein, the control pole of this voltage stabilizing diode is as this first control pole 115, the negative electrode of controlled voltage stabilizing diode D1 is as the first conduction pole 116, the anode of controlled voltage stabilizing diode D1 is as the second conduction pole 117, and this first scheduled voltage can be the reverse turn-on voltages of this controlled voltage stabilizing diode, such as 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 circuit for detecting 110, carries out rectification and voltage division for this alternating current source signal.Wherein, this rectification and voltage division circuit 112 comprises a diode D2 and two divider resistance R1, R2, the anode electrical connection alternating current source signal receiving end 1011 of this diode D2, cathodic electricity and divider resistance R1, R2 of diode D2 sequentially connect ground connection, further, the node between divider resistance R1 and R2 controls pole 115 with first of circuit for detecting 110 and is electrically connected.
Preferably, rectification and voltage division circuit 112 also comprises a mu balanced circuit 1121 further, for the stable voltage signal loading on sense terminal 111.Mu balanced circuit 1121 comprises electric capacity C1, and electric capacity C1 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 rectification and voltage division circuit 112, carries out step-down for this alternating current source signal.Such as, this alternating current source signal AC is 220V, then the AC signal of this reduction voltage circuit 114 to be AC by its step-down be 30V.
Control module 200 comprises detection signal receiving end 201,1 first on-off circuit 210, order wire circuit 230 and a control signal output terminal 203.Detection signal receiving end 201 is electrically connected on detection signal output terminal 113, to receive this detecting result that circuit for detecting 110 exports, control module 200 exports a control signal according to this detecting result, thus control the state of power indicating circuit 300, such as control conducting or the cut-off of power indicating circuit 300.
First on-off circuit 210 is electrically connected between detection signal receiving end 201, order wire circuit 230 and one first d. c. voltage signal input end 202, and the first d. c. voltage signal input end 202 is for receiving one first d. c. voltage signal VCC.First on-off circuit 210 optionally exports one first switching signal to order wire circuit 230 according to this detecting result, thus controls conducting and the cut-off of order wire circuit 230.First on-off circuit 210 comprises one first control end 212,1 first reference edge 213 and the first switching signal output terminal 214.First control end 212 is electrically connected on detection signal receiving end 201, first reference edge 213 and is electrically connected on the first d. c. voltage signal input end 202, first switching signal output terminal 214 and is electrically connected on order wire circuit 230.
Wherein, when the difference of the voltage being loaded on the first control end 212 and the first reference edge 213 is less than or equal to second predetermined value, first on-off circuit 210 conducting, first reference edge 213 is communicated with the first switching signal output terminal 214, this first d. c. voltage signal VCC that first reference edge 213 loads conducts to the first switching signal output terminal 214, and is exported as the first switching signal by this first d. c. voltage signal VCC; When the difference of the voltage being loaded on the first control end 212 and the first reference edge 213 is greater than this second predetermined value, first on-off circuit 210 ends, first reference edge 213 and the first switching signal output terminal 214 disconnect, and the first switching signal output terminal 214 stops exporting 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 one first conduction pole 216 and one second, control pole 215,1 first and conducts pole 217.First controls pole 215 is electrically connected on the first control end 212, or as the first control end 212; First conduction pole 216 is electrically connected on the first reference edge 213, or as the first reference edge 213; Second conduction pole 217 is electrically connected on the first switching signal output terminal 214, or as the first switching signal output terminal 214.
Preferably, switching transistor Q1 can adopt a P-type crystal pipe to realize, wherein, the base stage of this transistor Q1 is as this first control pole 215, the emitter of this transistor Q1 is as the first conduction pole 216, the collector of this transistor Q1 is as the second conduction pole 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, for the driving force of raising first on-off circuit 210.Wherein, bigoted circuit 211 comprises two bigoted resistance R3, R4, and resistance R3 is electrically connected between the first d. c. voltage signal input end 202 and the first control end 212, and resistance R4 is electrically connected between the first d. c. voltage signal input end 202 and the first reference edge 213.
Order wire circuit 230 optionally exports one according to the first switching signal that the first on-off circuit 210 exports and controls signal to power indicating circuit 300, to control power indicating circuit 300 conducting or cut-off.
Particularly, order wire circuit 230 comprises the first conduction terminals 231, second reference edge 232, second conduction terminals 233 and the 3rd conduction terminals 234.When the difference of the voltage that the first conduction terminals 231 and the second reference edge 232 load is greater than or equal to the 3rd predetermined value, order wire circuit 230 conducting, the second conduction terminals 233 is communicated with the 3rd conduction terminals 234; When the difference of the voltage that the first conduction terminals 231 and the second reference edge 232 load is less than the 3rd predetermined value, order wire circuit 230 ends, and this second conduction terminals 233 and the 3rd conduction terminals 234 disconnect.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; Second reference edge 232 ground connection; 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; 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 conducting, second d. c. voltage signal VDD transfers to the 3rd conduction terminals the 234, three conduction terminals 234 from the second conduction terminals 233 and is exported as this control signal by this second d. c. voltage signal VDD; When the first conduction terminals 231 does not receive this first switching signal, order wire circuit 230 ends, and the second conduction terminals 233 and the 3rd conduction terminals 234 disconnect, and the 3rd conduction terminals 234 stops exporting 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.
Whether power indicating circuit 300, receive this alternating current source signal for showing alternating current source signal receiving end 1011.Power indicating circuit 300 comprises a light emitting diode D3, and the anode of light emitting diode D3 is electrically connected on the 3rd conduction terminals 234 of this order wire circuit 230, and the cathodic electricity of light emitting diode D3 is connected to earth terminal.Particularly, when the anode of light-emittingdiode receives the second d. c. voltage signal VDD, light emitting diode D3 conducting and lighting, when the anode of light emitting diode D3 does not receive the second d. c. voltage signal VDD, light emitting diode D3 extinguishes.
Compared to prior art, whether detecting unit 100 directly detecting electronic installation 10 receives alternating current source signal, and control module 200 is lighted according to the detecting result diode directly controlled in power indicating circuit 300 or extinguishes, thus whether have the input of alternating current source according to electronic installation 10 and control the duty of power indicating circuit 300 rapidly, exactly, such as conducting is lighted or is ended extinguishing.
Refer to Fig. 3, it is the one change embodiment of the electronic installation 10 shown in Fig. 1.Particularly, the electronic installation 10 shown in Fig. 3 is mainly with the difference of the electronic installation shown in Fig. 1: detecting unit 100 is integrated into power supply unit 101 with the first on-off circuit 210 in control module 200; In control module 200, the second conduction terminals 233 of order wire circuit 230 is electrically connected to processing unit 102.The duty of control module 200 power indicating circuit 300 under the control of processing unit 102, such as, control power indicating circuit 300 conducting 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 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 exports a drive singal extremely from second switch circuit 250, and export this drive singal to power indicating circuit 300 as control signal from controlling signal output part 203, to control conducting or the cut-off of power indicating circuit 300.
Preferably, control module 200 also comprises the bigoted circuit 255 of the second bigoted circuit 255, second and is connected between processing unit 102 and second switch circuit 250, to improve the driving force of second switch circuit 250.Second bigoted circuit 255 comprises two bigoted resistance R5, R6, and wherein, resistance R5 is electrically connected on processing unit 102 and first and controls between pole 251, and resistance R6 is electrically connected on processing unit 102 and first and conducts between pole 252.
Preferably, electronic installation 10 also comprises first input end 271 and 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 power indicating circuit 300, the control signal that processing unit 102 exports according to order wire circuit 230 and the first input circuit 270 input the first input signal, are controlled conducting and the cut-off of power indicating circuit 300 by second switch circuit 250.
Refer to Fig. 4, it is the particular circuit configurations schematic diagram of the electronic installation 10 shown in Fig. 3.Particularly, first conduction terminals 231 of order wire circuit 230 is electrically connected on the first switching signal output terminal 214, second reference edge 232 ground connection, second conduction terminals 233 is electrically connected to second switch circuit 250 and the second bigoted circuit 255,3rd conduction terminals 234 ground connection, and there is ground connection reference voltage, 0V.When the first conduction terminals 231 receives the first switching signal of ground signalling, the first d. c. voltage signal VCC(3V that its first conduction terminals 231 loads) difference of ground signalling (0V) that loads with the second reference edge 232 is greater than the second predetermined value, order wire circuit 230 conducting, second conduction terminals 233 is communicated with the 3rd conduction terminals 234, second conduction terminals 233 exports a conducted signal to second switch circuit 250, to control second switch circuit 250 conducting.When this first conduction terminals 231 does not receive this first switching signal, order wire circuit 230 ends, and stops exporting this conducted signal to this second switch circuit 250.
Second switch circuit 250 comprises one first and controls pole 251,1 first and conduct pole 252 and the second conduction pole 253, second switch circuit 250 according to its whether receive that order wire circuit 230 exports using ground signalling as conducted signal and optionally conducting or cut-off.Wherein, the first control pole 251 is electrically connected on the second conduction terminals 233, first conduction pole 252 and is electrically connected on processing unit 102, and the second conduction pole 253 is electrically connected on this control signal output terminal 203.When the first control pole 251 receives ground signalling, this second switch circuit 250 conducting, first conduction pole 252 and second is conducted pole 253 and is communicated with, when the first control pole 251 does not receive this conducted signal, this second switch circuit 250 ends, and the first conduction pole 252 and second is conducted pole 253 and disconnected.Preferably, this second switch circuit 250 adopts a P-type crystal pipe Q2 to realize, and wherein, the base stage of transistor Q2 controls pole 251 as first, and the emitter of transistor Q2 is as the first conduction pole 252, and the collector of transistor Q2 is as the second conduction pole 253.
Further, this first input circuit 270 comprises a keyswitch K1, and when keyswitch K1 closes, this first input circuit 270 exports the first input signal of an electronegative potential to processing unit 102 by first input end 271; When keyswitch K1 disconnects, this first input end 271 has a noble potential and exports processing unit 102 to as the first input signal.In the present embodiment, this keyswitch can be power switch on display K1.
Processing unit 102 receives this conducted signal from controlling signal output part 203, simultaneously when the first input signal of the electronegative potential that the first input circuit 270 inputs, this processing unit 102 exports the drive singal of a noble potential to second switch circuit 250, and, this second switch circuit 250 from the second conduction terminals 233 of order wire circuit receive this ground signalling as conducted signal and be in conducting state, this second switch circuit 250 exports this drive singal to control signal output terminal 203 as control signal, and then export power indicating circuit 300 to from controlling signal output part 203, thus control this power indicating circuit 300 conducting, light emitting diode D3 lights.If when processing unit 102 only receives the first input signal of the low-potential signal of this conducted signal or the input of the first input circuit 270, this processing unit 102 exports the drive singal of electronegative potential to second switch circuit 250, thus control this indicating circuit 300 and end, light emitting diode D3 extinguishes.
Refer to Fig. 5, its another kind for the electronic installation 10 shown in Fig. 1 changes embodiment.Particularly, the electronic installation 10 shown in Fig. 5 is mainly with the difference of the electronic installation shown in Fig. 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 260,3rd on-off circuit 260 is electrically connected between the first on-off circuit 210 and order wire circuit 230, for this first switching signal receiving the output of this first on-off circuit, and export one the 3rd switching signal to order wire circuit 230 according to this first switching signal, order wire circuit 230 controls signal to control signal output terminal 203 and processing unit 102 according to the 3rd switching signal output correspondence.
Refer to Fig. 6, it is the particular circuit configurations figure of electronic installation 10 shown in Fig. 5.
Particularly, 3rd on-off circuit 260 comprises the first control pole 261, first and conducts pole 262 and the second conduction pole 263, this the first control pole 261 is electrically connected on this first switching signal output terminal 214, first conduction pole 262 and is electrically connected on the second reference edge 232, second conduction pole 263 ground connection.Wherein, when this first control pole 261 receives this first d. c. voltage signal VCC as this first switching signal, 3rd on-off circuit 260 conducting, this the first conduction pole 262 and second is conducted pole 263 and is communicated with, and using second reference edge 232 of this ground signalling as the 3rd switching signal to order wire circuit 230; When this first controls pole 261 and do not receive this first switching signal, the 3rd on-off circuit 260 ends, and this first conduction pole 262 and second conduct pole 263 and disconnected, stopping output the 3rd switching signal.Preferably, the 3rd on-off circuit adopts a N-type metal-oxide-semiconductor Q3 to realize, and wherein, the grid of metal-oxide-semiconductor Q3 is as this first control pole 261, and the source electrode of metal-oxide-semiconductor Q3 is as this first conduction pole 262, and the drain electrode of metal-oxide-semiconductor is as this second conduction pole 263.
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, second conduction terminals 233 is electrically connected on processing unit 102, the 3rd conduction terminals 234 ground connection.When the second reference edge 232 receive ground signalling as the 3rd switching signal time, the first d. c. voltage signal VCC(3V that its first conduction terminals 231 loads) difference of ground signalling (0V) that loads with the second reference edge 232 is greater than the second predetermined value, order wire circuit 230 conducting, second conduction terminals 233 is communicated with the 3rd conduction terminals 234, and the second conduction terminals 233 exports ground signalling for controlling signal to control signal output terminal 203.
Processing unit 102 receives this control signal from controlling signal output part 203, and exports corresponding drive singal to power indicating circuit 300 according to this control signal, the conducting of controlled processing unit 102 and cut-off.Such as, processing unit 102 exports drive singal driving power indicating circuit 300 conducting of noble potential, and the drive singal driving power indicating circuit 300 that processing unit 102 exports electronegative potential ends.
Further, processing unit 102 also includes timing unit 105, timing unit 105 carries out timing for time processing unit 102 being started to the time and/or this control signal of person's processing unit 102 stopping reception that receive this control signal, and corresponding output drive signal, to power indicating circuit 300, thus controls the conducting of power indicating circuit 300 or cut-off again after timing completes.Timing unit 105 can adopt hardware timer to realize, and the timing of software program also can be adopted to realize.The timing time of timing unit 105 can be 2 seconds (2S).
Claims (14)
1. an 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 for receiving an alternating current source signal, this control module is electrically connected with this power indicating circuit with this detecting unit respectively, whether this detecting unit receives this alternating current source signal for detecting this alternating current source input end, when detecting unit detect this electronic installation receive this alternating current source signal time, this control module exports a control signal and controls this power indicating circuit conducting, when detecting unit detects this electronic installation stopping this alternating current source signal of reception, this control module exports this control signal and controls the cut-off of this power indicating circuit, wherein this detecting unit comprises a sense terminal, one detection signal output terminal and a circuit for detecting, this circuit for detecting comprises one first and controls pole, pole is conducted in first conduction pole and second, this the first control pole is electrically connected on this sense terminal, this the second conduction pole ground connection, this the first conduction pole is electrically connected on detection signal output terminal, when this sense terminal receives this alternating current source signal and is greater than first predetermined value, this circuit for detecting conducting, this the first conduction pole and second is conducted pole and is communicated with, first conduction pole obtains ground voltage from the second conduction pole and exports this ground voltage to control module as detecting result from this detection signal output terminal, when detecting first conduct pole do not receive this alternating current source signal or this alternating current source signal be less than this first predetermined value time, this circuit for detecting ends, this detection signal output terminal stops exporting this detecting result, this circuit for detecting is a controlled voltage stabilizing diode, the control pole of this controlled voltage stabilizing diode controls pole as first, the anode of this controlled voltage stabilizing diode is as this first conduction pole, and the negative electrode of this controlled voltage stabilizing diode is as the second conduction pole.
2. electronic installation according to claim 1, 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 is connected with these two divider resistances ground connection successively, and the node in these two resistance controls pole with first of this circuit for detecting is electrically connected.
3. electronic installation according to claim 2, 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 first controls pole be electrically connected with this, the other end ground connection of this electric capacity of voltage regulation.
4. electronic installation according to claim 1, it is characterized in that, this control module comprises one first on-off circuit, this first on-off circuit comprises one first control end, one first reference edge and the first switching signal output terminal, first control end of this first on-off circuit is electrically connected with this circuit for detecting, this first reference edge is electrically connected with one first d. c. voltage signal input end, and receive one first d. c. voltage signal, this the first switching signal output terminal is for exporting one first switching signal, when the difference of the voltage being loaded on the first control end and the first reference edge is less than or equal to second predetermined value, first on-off circuit conducting, first reference edge is communicated with the first switching signal output terminal, this first d. c. voltage signal that 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 being loaded on the first control end and the first reference edge is greater than this second predetermined value, the first on-off circuit cut-off, the first reference edge and the first switching signal output terminal disconnect, and the first switching signal output terminal stops exporting this first switching signal.
5. electronic installation according to claim 4, 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 electrical connection one second d. c. voltage signal input end, this the second d. c. voltage signal input end is for receiving one second d. c. voltage signal, 3rd conduction terminals is electrically connected on this power indicating circuit, when the difference of the voltage that this first conduction terminals and this second reference edge load 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, when the difference of the voltage that this first conduction terminals and this second reference edge load is less than the 3rd predetermined value, this order wire circuit ends, and this second conduction terminals and the 3rd conduction terminals disconnect, and the 3rd conduction terminals stops exporting this control signal.
6. electronic installation according to claim 5, 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 second reference edge, and the collector of this phototriode is as this second conduction terminals, and the emitter of this phototriode is as the 3rd conduction terminals.
7. electronic installation according to claim 4, it is characterized in that: this electronic installation comprises a processing unit further, this control module is electrically connected with this processing unit, this control module detects when this electronic installation receives this alternating current source signal at this detecting unit and exports a conducted signal to processing unit, this processing unit is after receiving this conducted signal, export a drive singal to control module, this control module exports this drive singal to power indicating circuit, control conducting or the cut-off of this power indicating circuit, this control module this detecting unit detect this electronic installation do not receive this alternating current source signal time, this control module stops exporting this conducted signal to this processing unit, and control the cut-off of this power indicating circuit.
8. electronic installation according to claim 7, 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, 3rd conduction terminals ground connection, this electronic installation comprises one first input circuit further, when the difference of the voltage that this first conduction terminals and this second reference edge load 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, 3rd conduction terminals exports a ground signalling to processing unit as conducted signal, and when this first input circuit exports an input signal, this processing unit exports a drive singal, this drive singal is exported to this power indicating circuit and drives this power indicating circuit conducting or cut-off by this control module, when the difference of the voltage that this first conduction terminals and this second reference edge load is less than the 3rd predetermined value, this order wire circuit ends, this second conduction terminals and the 3rd conduction terminals disconnect, and the 3rd conduction terminals stops exporting this conducted signal, and this control module controls the cut-off of this power indicating circuit.
9. electronic installation according to claim 8, it is characterized in that, this control module also comprises a second switch circuit, this second switch circuit comprises one first and controls pole, one first conduction pole and the second conduction pole, this the first control pole is electrically connected on the second conduction terminals, first conduction pole is electrically connected on processing unit, second conduction pole is electrically connected on power indicating circuit, when the first control pole receives this conducted signal, this second switch circuit turn-on, first conduction pole and second is conducted pole and is communicated with, when the first control pole does not receive this conducted signal, this second switch circuit ends, first conduction pole and second is conducted and is disconnected.
10. an 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 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, whether this detecting unit receives this alternating current source signal for detecting this alternating current source input end, when detecting unit detect this electronic installation receive this alternating current source signal time, this control module exports one and controls signal to this processing unit, this processing unit exports a drive singal to this power indicating circuit and controls this power indicating circuit conducting, when detecting unit detects this electronic installation stopping this alternating current source signal of reception, this control module stops exporting this control signal, this processing unit exports this drive singal and controls the cut-off of this power indicating circuit, wherein this detecting unit comprises a sense terminal, one detection signal output terminal and a circuit for detecting, this circuit for detecting comprises one first and controls pole, pole is conducted in first conduction pole and second, this the first control pole is electrically connected on this sense terminal, this the second conduction pole ground connection, this the first conduction pole is electrically connected on detection signal output terminal, when this sense terminal receives this alternating current source signal and is greater than first predetermined value, this circuit for detecting conducting, this the first conduction pole and second is conducted pole and is communicated with, first conduction pole obtains ground voltage from the second conduction pole and exports this ground voltage to control module as detecting result from this detection signal output terminal, when this first conduction pole of detecting does not receive this alternating current source signal or this alternating current source signal is less than this first predetermined value, this circuit for detecting ends, this detection signal output terminal stops exporting this detecting result, this circuit for detecting is a controlled voltage stabilizing diode, the control pole of this controlled voltage stabilizing diode controls pole as first, the anode of this controlled voltage stabilizing diode is as this first conduction pole, and the negative electrode of this controlled voltage stabilizing diode is as the second conduction pole.
11. electronic installations according to claim 10, it is characterized in that, this control module comprises one first on-off circuit, this first on-off circuit comprises one first control end, one first reference edge and the first switching signal output terminal, first control end of this first on-off circuit is electrically connected with this circuit for detecting, this first reference edge is electrically connected with one first d. c. voltage signal input end, and receive one first d. c. voltage signal, this the first switching signal output terminal is for exporting one first switching signal, when the difference of the voltage being loaded on the first control end and the first reference edge is less than or equal to second predetermined value, first on-off circuit conducting, first reference edge is communicated with the first switching signal output terminal, this first d. c. voltage signal that 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 being loaded on the first control end and the first reference edge is greater than this second predetermined value, the first on-off circuit cut-off, the first reference edge and the first switching signal output terminal disconnect, and the first switching signal output terminal stops exporting this first switching signal.
12. electronic installations according to claim 11, it is characterized in that, this control module also comprises an order wire circuit and one the 3rd on-off circuit, 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 electrical connection one second d. c. voltage 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, 3rd conduction terminals ground connection, this processing unit is electrically connected with this power indicating circuit, this electronic installation comprises one first input circuit further, when the 3rd on-off circuit receives this first switching signal, 3rd on-off circuit conducting, and export a ground signalling to this second reference edge as the 3rd switching signal, when the 3rd on-off circuit does not receive this first switching signal, 3rd on-off circuit cut-off, 3rd on-off circuit stops exporting the 3rd switching signal to this second reference edge, when the difference of the voltage that this first conduction terminals and this second reference edge load 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, 3rd conduction terminals exports a ground signalling to processing unit as this control signal, and when this first input circuit exports an input signal, this processing unit controls this power indicating circuit conducting, when the difference of the voltage that this first conduction terminals and this second reference edge load is less than the 3rd predetermined value, this order wire circuit ends, this second conduction terminals and the 3rd conduction terminals disconnect, and the 3rd conduction terminals stops exporting this control signal, and this processing unit controls the cut-off of this power indicating circuit.
13. electronic installations according to claim 12, it is characterized in that, 3rd on-off circuit comprises the first control pole, the first conduction pole and the second conduction pole, this the first control pole is electrically connected on this first switching signal output terminal, this the first conduction pole is electrically connected on this second reference edge, this the second conduction pole ground connection, when this first control pole receives this first switching signal, 3rd on-off circuit conducting, this the first conduction pole and second is conducted pole and is communicated with, and exports this ground signalling to second reference edge as the 3rd switching signal; When this first control pole does not receive this first switching signal, the 3rd on-off circuit cut-off, this first conduction pole and second is conducted pole and is disconnected, and stops exporting the 3rd switching signal.
14. electronic installations according to claim 10, it is characterized in that, this processing unit also comprises a timing unit, this timing unit is used for carrying out timing to the time of time and/or this control signal of this processing unit stopping reception that this processing unit starts to receive this control signal, and after timing completes, this processing unit exports this drive singal to power indicating circuit, controls conducting or the cut-off of this power indicating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110250917.3A CN102955062B (en) | 2011-08-29 | 2011-08-29 | Electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110250917.3A CN102955062B (en) | 2011-08-29 | 2011-08-29 | Electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102955062A CN102955062A (en) | 2013-03-06 |
| CN102955062B true CN102955062B (en) | 2015-03-18 |
Family
ID=47764131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110250917.3A Active CN102955062B (en) | 2011-08-29 | 2011-08-29 | Electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102955062B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US4572973A (en) * | 1982-01-13 | 1986-02-25 | Tokyo Shibaura Denki Kabushiki Kaisha | AC Current detection circuit for a rotor driving supply source of a rotating anode X-ray tube |
| US5532626A (en) * | 1995-02-06 | 1996-07-02 | Unitrode Corporation | Off-line controller having a line voltage detector and a switched current bootstrap circuit |
| CN101311780A (en) * | 2007-05-25 | 2008-11-26 | 群康科技(深圳)有限公司 | Backlight system, liquid crystal display system adopting same and its drive method |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08240621A (en) * | 1995-03-07 | 1996-09-17 | Yokogawa Electric Corp | Ac voltage input circuit |
-
2011
- 2011-08-29 CN CN201110250917.3A patent/CN102955062B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US4572973A (en) * | 1982-01-13 | 1986-02-25 | Tokyo Shibaura Denki Kabushiki Kaisha | AC Current detection circuit for a rotor driving supply source of a rotating anode X-ray tube |
| US5532626A (en) * | 1995-02-06 | 1996-07-02 | Unitrode Corporation | Off-line controller having a line voltage detector and a switched current bootstrap circuit |
| CN101311780A (en) * | 2007-05-25 | 2008-11-26 | 群康科技(深圳)有限公司 | Backlight system, liquid crystal display system adopting same and its drive method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102955062A (en) | 2013-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8344743B2 (en) | Testing system for power supply unit | |
| CN101546962B (en) | Power supply device | |
| CN100555825C (en) | Electrode converting circuit | |
| CN102842893B (en) | Short-circuit protection and control circuit for LED (Lighnt emitting Diode) strip lamp | |
| CN101931249B (en) | Electronic device capable of indicating battery charged state | |
| CN205793566U (en) | A kind of single live wire switch | |
| US8797696B2 (en) | Current leakage protection circuit, power socket and electronic device using same | |
| CN102856940A (en) | Electronic device and charger capable of indicating battery charging state | |
| CN109152184A (en) | lamp control device and lighting system | |
| CN102487567A (en) | LED constant current drive circuit used for portable device | |
| CN202856317U (en) | LED light bar short circuit protection control circuit | |
| CN201812029U (en) | Key detection and display driving integrated circuit | |
| US9066398B2 (en) | Method for reducing standby power consumption | |
| CN102955062B (en) | Electronic device | |
| CN218003674U (en) | Flash-off state detection circuit and electronic device | |
| CN108279361B (en) | Test method and test circuit for charging port of intelligent terminal | |
| CN202435015U (en) | Power supply system | |
| CN105785168B (en) | Detection circuit and automatic detection device | |
| CN2665990Y (en) | Power supply socket with delayed-breaking-off function | |
| CN212726976U (en) | Display outage system and display | |
| CN115606870A (en) | System control circuit for driving indicator lamp, indicator assembly and electronic atomization device | |
| US9093858B2 (en) | Illumination system and illumination driving method | |
| TW201301013A (en) | Electrical device | |
| CN102438372B (en) | Intelligent lamp circuit and control method thereof | |
| CN202818730U (en) | Multifunctional working lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
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. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |