CN105578689A - Power saver with power line carrier unit - Google Patents
Power saver with power line carrier unit Download PDFInfo
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- CN105578689A CN105578689A CN201610102922.2A CN201610102922A CN105578689A CN 105578689 A CN105578689 A CN 105578689A CN 201610102922 A CN201610102922 A CN 201610102922A CN 105578689 A CN105578689 A CN 105578689A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a power saver with a power line carrier unit. The power saver comprises a first relay, a second relay, a first inductor and a second inductor which are connected in series, an MCU (Micro-programmed Control Unit) module, and a power supply module, an acquisition module, a power line carrier module and a driving unit which are connected with the MCU module respectively, wherein the first inductor is an overvoltage winding; the second inductor is a power-reducing winding; the power supply module is used for providing working voltage to the MCU module; the power line carrier module is used for receiving a power line carrier signal transmitted by an integrated controller, demodulating the power line carrier signal and transmitting the power line carrier signal to the MCU module; the power line carrier module is also used for receiving a feedback instruction fed back by the MCU module, converting the feedback instruction to the power line carrier signal, coupling the power line carrier signal to an alternating-current power line and then transmitting the power line carrier signal to the integrated controller; and the feedback instruction is working state information of a current discharging lamp. The power saver with the power line carrier unit has the advantages of simplicity in operation and convenience for utilization.
Description
Technical field
The present invention relates to a kind of electricity-saving appliance with power carrier unit.
Background technology
Along with improving constantly of living standard, the requirement of people to city illumination environment is also more and more higher, not only needs emergency lighting, also adds the illumination promoting city image.Relevant department specifies: in the normal illumination period, the illumination that the standard that should reach specifies, do not needing normal illumination period (such as the time after midnight), can only retain safe illumination, its brightness value generally rests in the half of standard.And several times of current city image illumination normal luminance often, considerably beyond national standard, when only needing to retain safe illumination, waste a large amount of energy.Therefore in the period not needing city image illumination, making illumination drop to safe illumination becomes inevitable to reach energy-conservation object.
Summary of the invention
The object of this invention is to provide a kind of electricity-saving appliance with power carrier unit, it can solve above-mentioned shortcoming of the prior art.
The present invention is by the following technical solutions:
There is an electricity-saving appliance for power carrier unit, comprising: the first relay, the second relay, the first inductance of series connection and the second inductance, MCU module, and the power module, acquisition module, power line carrier module and the driver element that are connected with MCU module respectively;
Wherein, described first inductance is overvoltage winding, and described second inductance is for falling power winding;
Described power module provides operating voltage for described MCU module;
Described power line carrier module receives the power carrier signal sent by Centralized Controller, and sends to MCU module after described power carrier signal is carried out demodulation process, and receive the feedback command of described MCU module feedback, and convert described feedback command to power carrier signal, and sent to described Centralized Controller by being coupled in AC power cord, described feedback command is the work state information of present discharge lamp: described power line carrier module comprises the first power carrier coupling channel, the second power carrier coupling channel, described first power carrier coupling channel is arranged between the live wire of ac cable and zero line, receives and send first carrier signal between the live wire and zero line of ac cable, described second power carrier coupling channel is arranged between the ground wire of ac cable and zero line, receive between the ground wire and zero line of ac cable and send the second carrier signal and also comprise filter circuit, power carrier treatment circuit and carrier power amplifier circuit, described first power carrier coupling channel, second power carrier coupling channel is in parallel and be connected with one end of described filter circuit, the other end of described filter circuit is connected with the input of power carrier treatment circuit, the output of described power carrier treatment circuit is connected with the input of carrier power amplifier circuit, the output of described carrier power amplifier circuit respectively with described first power carrier coupling channel, second power carrier coupling channel is connected,
The power carrier signal that described MCU module sends according to described power line carrier module, or the voltage signal after insulation blocking that the described acquisition module received gathers, generate corresponding MCU instruction;
Described driver element receives described MCU instruction, drive described first relay or second actuating of relay, and described driver element comprises, pulse square wave-generator and at least one driver module;
The output of described pulse square wave-generator connects the first input end of driver module, and this pulse square wave-generator is to the first input end input high frequency square wave pulse signal of driver module, described driver module also has the second input for inputting low frequency drive signal, this driver module comprises signaling conversion circuit unit and drive circuit unit, is connected between signaling conversion circuit unit and drive circuit unit by pulse transformer;
When the second input of described driver module is high level, inputted low frequency drive signal and high frequency square wave pulse signal are converted to ac high frequency pulse signal by described signaling conversion circuit unit, described pulse transformer to this ac high frequency pulse signal carry out isolation transformation after by described drive circuit unit outputting drive voltage signal; Described driver module is set at least two, and the first input end of each driver module connects the output of described pulse square wave-generator respectively, and the second input of each driver module is respectively used to input corresponding low frequency drive signal;
Described power module comprises, one voltage conversion unit, an Overvoltage protecting unit and a power supply unit, the input of described voltage conversion unit is connected to receive the first voltage that described power supply unit provides with described power supply unit, the output of described voltage conversion unit is connected with described electronic component; Described Overvoltage protecting unit comprises signal input part, signal processing circuit, low pressure amplitude limiter circuit, high pressure amplitude limiter circuit, and wherein, described signal input part is connected to input resistance; Described low pressure amplitude limiter circuit comprises the first amplitude limit control voltage, the first divider resistance, the second divider resistance, the first amplitude limit electric capacity and NPN bipolar transistor; Described high pressure amplitude limiter circuit comprises the second amplitude limit control voltage, the 3rd divider resistance, the 4th divider resistance, the second amplitude limit electric capacity and PNP bipolar transistor.
One end that the tie point that described first relay is connected with the second relay is connected with described first inductance and the second inductance is connected; The other end of described first inductance is connected with the first fixed contact of described first relay, and the other end of described second inductance is connected with the second fixed contact of described second relay; The moving contact of described first relay is connected with described acquisition module, and the moving contact of described second relay is connected with standard inductor.
Described voltage conversion unit comprises: power supply circuits, energy storage booster circuit, malleation produce circuit, negative voltage generating circuit and reference voltage generating circuit; Wherein, described energy storage booster circuit comprises boost chip and inductance;
The output of described power supply circuits is connected with the input of described boost chip and the first end of described inductance respectively;
Second end of described inductance produces the input of circuit with the control end of described boost chip, described malleation respectively, the input of described negative voltage generating circuit is connected with the input of described reference voltage generating circuit;
Described power supply circuits are used for providing unipolar input voltage;
The voltage at described inductance two ends for controlling the voltage at described inductance two ends, and is supplied to the generation of described malleation circuit, described negative voltage generating circuit and described reference voltage generating circuit by described boost chip respectively;
Described malleation produces circuit and is used for producing positive voltage according to the voltage at described inductance two ends;
Described negative voltage generating circuit is used for producing negative voltage according to the voltage at described inductance two ends;
Described reference voltage generating circuit is used for producing reference voltage according to the voltage at described inductance two ends.
It is the first charge pump circuit that described malleation produces circuit, and wherein, described first charge pump circuit is used for producing positive voltage according to the voltage at described inductance two ends, and described first charge pump circuit comprises N level charge pump circuit, N be more than or equal to 1 positive integer.
The N level charge pump circuit of described first charge pump circuit comprises the first electric capacity, the first diode and the second diode; Wherein,
The negative pole of described first electric capacity is connected with the second end of described inductance, and the positive pole of described first electric capacity is connected with the positive pole of described first diode and the negative pole of described secondth diode respectively; The positive pole of described second diode is connected with the negative pole of the first diode in the N-1 level charge pump circuit of described first charge pump circuit;
The negative pole of described first diode exports described positive voltage according to the cathode voltage of the voltage at described inductance two ends and described first electric capacity.
The emitter of described NPN bipolar transistor and the emitter of PNP bipolar transistor are all connected on the input of signal processing circuit; Described first divider resistance is series between the first amplitude limit control voltage and the base stage of NPN bipolar transistor; Described second divider resistance and the first amplitude limit Capacitance parallel connection, this second divider resistance is all connected with the base stage of NPN bipolar transistor with one end of the first amplitude limit electric capacity; The other end of described second divider resistance and the first amplitude limit electric capacity and the collector electrode of NPN bipolar transistor are all connected to reference on the ground; Described 3rd divider resistance is series between the second amplitude limit control voltage and the base stage of PNP bipolar transistor; Described 4th divider resistance and the second amplitude limit Capacitance parallel connection, the 4th divider resistance is all connected with the base stage of PNP bipolar transistor with one end of the second amplitude limit electric capacity; Described 4th divider resistance and the other end of the second amplitude limit electric capacity and the collector electrode of PNP bipolar transistor are all connected to reference on the ground.
Described first amplitude limit control voltage and the second amplitude limit control voltage are external dc voltage source, and the first amplitude limit control voltage is lower than reference ground voltage, and the second amplitude limit control voltage is higher than reference ground voltage.
Described negative voltage generating circuit is the second charge pump circuit, and wherein, described second charge pump circuit is used for exporting described negative voltage according to the voltage at described inductance two ends, and described second charge pump circuit comprises M level charge pump circuit, M be more than or equal to 1 positive integer.
Described signaling conversion circuit unit comprises NAND gate unit and full bridge inversion circuit unit, two outputs of described NAND gate unit connect two inputs of described full bridge inversion circuit unit respectively, described pulse transformer has former limit winding and secondary winding, two outputs of described full bridge inversion circuit unit connect two inputs of described former limit winding respectively, and two outputs of described secondary winding are connected with two inputs of described drive circuit unit respectively;
When the second input of described driver module is high level, described low frequency drive signal and high frequency square wave pulse signal are converted to the direct current high-frequency pulse signal of two-way complementation by described NAND gate unit, and the frequency of this direct current high-frequency pulse signal is identical with described high frequency square wave pulse signal with pulsewidth, the direct current high-frequency pulse signal inversion of two-way complementation is ac high frequency pulse signal by described full bridge inversion circuit unit.
In described NAND gate unit, the first input end of NAND gate device UA is the first input end IN1 of described driver module, second input of this NAND gate device UA connects the first input end of NAND gate device UB, the first input end of NAND gate device UB is the second input IN2 of described driver module, and second input of this NAND gate device UB connects the output of described NAND gate device UA.
Advantage of the present invention is: simple to operate, easy to use.
Accompanying drawing explanation
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail, wherein:
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structured flowchart of power circuit.
Fig. 3 is the circuit diagram of Fig. 2.
Fig. 4 is the structural representation of voltage conversion unit.
Fig. 5 is the circuit diagram of driver element of the present invention.
Fig. 6 is the circuit diagram of the driver module of Fig. 5.
Fig. 7 is the circuit diagram of power line carrier module of the present invention.
Embodiment
The specific embodiment of the present invention is set forth further below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of electricity-saving appliance with power carrier unit disclosed in embodiments of the invention, mainly comprises: the first relay K A1, the first inductance L 2, first relay coil 101, second relay K A2, the second inductance L 3, second relay coil 102, MCU module 103, power module 104, power line carrier module 105, acquisition module 106 and driver element 107.
Power module 104, power line carrier module 105, acquisition module 106, driver element 107 is connected with MCU module 103 respectively, this power module 104 receives electrical network, and (L in Fig. 1 represents live wire, N represents zero line) in the voltage of interchange AC220V ± 20%, and the photovoltaic conversion received is become the operating voltage of MCU module 103, so that MCU module 103 normally works.Power line carrier module 105 carries out communication with the Centralized Controller (not indicating in figure) at discharge lamp control cabinet place, for sending and receiving power carrier signal.When Centralized Controller sends power carrier signal to electricity-saving appliance of the present invention, the power carrier signal of Centralized Controller transmission is received by power line carrier module 105, and this power carrier signal is sent to MCU module 103 after demodulation, corresponding MCU instruction is generated again, drive output signal by MCU module 103.When MCU module 103 needs to feed back corresponding information to Centralized Controller, the i.e. work state information of present discharge lamp, dependent instruction is sent to power line carrier module 105 by MCU module 103, the instruction transformation received is become power carrier signal by this power line carrier module 105, and is sent in Centralized Controller by being coupled in AC power cord.Carry out communication by power line carrier module 105 and Centralized Controller, the Long-distance Control to discharge lamp 108 can be realized, namely complete the Based Intelligent Control that discharge lamp 108 throws light on.
Sampling module 106 is mainly used in gathering the voltage signal in circuit, and the voltage signal collected is sent to MCU module 103 after insulation blocking.MCU module 103 is mainly used in the power carrier signal receiving voltage signal and power line carrier module 105 transmission processed through sampling module 106, and generate corresponding MCU instruction according to the signal received, and by the work state information of power line carrier module 105 to Centralized Controller feedback present discharge lamp 108.
Driver element 107 is mainly used in the MCU instruction receiving MCU module 103 transmission, then makes the first relay coil 101 or the second relay coil 102 obtain electric, dead electricity according to this MCU instruction, and then drives the first relay K A1 or the second relay K A2 action.As shown in fig. 1, the first relay coil 101 is connected with driver element 107 respectively with the second relay coil 102.
First relay K A1 and the second relay K A2, has three contacts, i.e. moving contacts, the first fixed contact and the second fixed contact.In embodiment disclosed by the invention, second fixed contact of the first relay K A1 is connected with first fixed contact of the second relay K A2, first inductance L 2 is connected with the second inductance L 3, and the tie point place that the first relay K A1 is connected with the second relay K A2 is connected with one end that described first inductance L 2 and the second inductance L 3 are connected, as shown in Figure 1.
In addition, the other end of the first inductance L 2 is then connected with first fixed contact of the first relay K A1, and the other end of the second inductance L 3 is then connected with second fixed contact of the second relay K A2; The moving contact of the first relay K A1 is then connected with acquisition module 106, and the moving contact of the second relay K A2 is then connected with standard inductor L1 original in discharge lamp circuit.
It should be noted that, the first inductance L 2 is overvoltage winding, when line voltage distribution is too high, sends corresponding MCU instruction by MCU module 103, makes driver element 107 drive the first relay K A1 action, the first inductance L 2 be linked in circuit.
In addition, the second inductance L 3, for falling power winding, when needs reduce discharge lamp power, controls the second relay K A2 action by MCU module 103, the second inductance L 3 is linked in circuit.
As shown in Figure 2,3, described power module 10 comprises voltage conversion unit 12, Overvoltage protecting unit 16 and a power supply unit 18.Described voltage conversion unit 12 is connected with described Overvoltage protecting unit 16.Described power supply unit 18 is all connected with described voltage conversion unit 12 and described Overvoltage protecting unit 16.Described voltage conversion unit 12 becomes operating voltage for the first voltage transitions provided by described power supply unit 18, and is exported from the output of described voltage conversion unit 12 by the voltage after conversion.When described Overvoltage protecting unit 16 is greater than operating voltage for the voltage exported at the output of described voltage conversion unit 12, controls described power supply unit 18 and stop voltage exporting, thus to protecting.
Described Overvoltage protecting unit 16 comprises overvoltage crowbar, and overvoltage crowbar includes signal input part Vs, signal processing circuit, low pressure amplitude limiter circuit, high pressure amplitude limiter circuit, and wherein, described signal input part Vs is connected to input resistance Ri; Described low pressure amplitude limiter circuit comprises the first amplitude limit control voltage Ve, the first divider resistance R11, the second divider resistance R12, the first amplitude limit electric capacity C11 and NPN bipolar transistor Q1; Described high pressure amplitude limiter circuit comprises the second amplitude limit control voltage Vc, the 3rd divider resistance R13, the 4th divider resistance R14, the second amplitude limit electric capacity C12 and PNP bipolar transistor Q2; The emitter of described NPN bipolar transistor Q1 and the emitter of PNP bipolar transistor Q2 are all connected on the input Vi of signal processing circuit; Described first divider resistance R1 is series between the first amplitude limit control voltage Ve and the base stage of NPN bipolar transistor Q1; Described second divider resistance R2 is in parallel with the first amplitude limit electric capacity C11, and this second divider resistance R12 is all connected with the base stage of NPN bipolar transistor Q1 with one end of the first amplitude limit electric capacity C11; The other end of described second divider resistance R12 and the first amplitude limit electric capacity C11 and the collector electrode of NPN bipolar transistor Q1 are all connected to reference on ground GND; Described 3rd divider resistance R13 is series between the base stage of the second amplitude limit control voltage Vc and PNP bipolar transistor Q2; Described 4th divider resistance R14 is in parallel with the second amplitude limit electric capacity C12, and the 4th divider resistance R14 is all connected with the base stage of PNP bipolar transistor Q2 with one end of the second amplitude limit electric capacity C12; The other end of described 4th divider resistance R14 and the second amplitude limit electric capacity C12 and the collector electrode of PNP bipolar transistor Q2 are all connected to reference on ground GND.
Described first amplitude limit control voltage Ve and the second amplitude limit control voltage Vc is external dc voltage source, and the first amplitude limit control voltage Ve is lower than reference ground GND voltage, and the second amplitude limit control voltage Vc is higher than reference ground GND voltage.
Given first amplitude limit control voltage Ve and the second amplitude limit control voltage Vc, the base voltage of NPN bipolar transistor Q1 is fixed on Va, Va=Ve × R12/ (R11+R12), the base voltage of PNP bipolar transistor Q2 is fixed on Vb, Vb=Vc × R14/ (R13+R14); As base voltage Va lower than NPN bipolar transistor Q1 of the input terminal voltage Vi of signal processing circuit, the emitter junction positively biased of NPN bipolar transistor Q1, collector junction are reverse-biased, NPN bipolar transistor Q1 is operated in magnifying state, and the base voltage Va that the input terminal voltage Vi of signal processing circuit is restricted to NPN bipolar transistor Q1 deducts its emitter junction junction voltage; As base voltage Vb higher than PNP bipolar transistor Q2 of the input terminal voltage Vi of signal processing circuit, emitter junction positively biased, the collector junction of PNP bipolar transistor Q2 are reverse-biased, PNP bipolar transistor Q2 is operated in magnifying state, and the base voltage Vb that the input terminal voltage Vi of signal processing circuit is restricted to PNP bipolar transistor Q2 adds its emitter junction junction voltage.First amplitude limit electric capacity C11 and the second amplitude limit electric capacity C12 plays filter action to Va and Vb respectively.The advantage of overvoltage crowbar is that circuit structure is simple, and amplitude limit precision is high, can conveniently change limiting voltage size.
As shown in Figure 4, negative voltage generating circuit 4 is 1 grade of charge pump circuit that can produce negative voltage, wherein, electric capacity C2 and diode D2, D3 form a charge pump circuit, then the second electric capacity is C2, and the left end of the second electric capacity C2 is positive pole, and right-hand member is negative pole, 3rd diode is D2, and the 4th diode is D3.The positive pole of the second electric capacity C2 is connected with the right-hand member of inductance L 1, and the negative pole of the second electric capacity C2 is connected with the positive pole of the 3rd diode D2 and the negative pole of the 4th diode D3 respectively, and the positive pole of the 4th diode D3 exports negative voltage, the minus earth of the 3rd diode D2.The specific works principle of negative voltage generating circuit 4 is as follows: first charged to electric capacity C2 by the output voltage of inductance L 1, and electric capacity C2 polarity is left positive right negative, then disconnects inductance L 1 pair of electric capacity C2 charging path; Because the voltage at electric capacity C2 two ends can not suddenly change, therefore, the cathode voltage on the right will be exported by diode D3 and obtain negative voltage VGL.If M is more than or equal to 2, then the negative pole of the 3rd diode D2 is connected with the positive pole of the 3rd diode in M-1 level charge pump circuit, so forms multiple-stage charge pump.Negative voltage generating circuit 4 can also increase electric capacity C3 and voltage stabilizing didoe D8, electric capacity C3 at the output of M level charge pump circuit and be used for carrying out filtering process to the negative voltage of output, and voltage stabilizing didoe D8 realizes voltage stabilizing and exports.Reference voltage generating circuit comprises at least one voltage stabilizing didoe, and the positive pole of voltage stabilizing didoe is connected with the second end of inductance, and the negative pole of voltage stabilizing didoe is according to the cathode voltage output reference voltage of voltage stabilizing didoe.
Reference voltage generating circuit 5 comprises voltage stabilizing didoe D1, and the positive pole of voltage stabilizing didoe D1 is connected with the right-hand member of inductance L 1, and negative pole exports negative voltage VGL.Reference voltage generating circuit 5 can also increase an electric capacity C1, and the negative voltage that electric capacity C1 is used for exporting carries out filtering process.
The voltage conversion circuit that the present embodiment provides, adopt multiple-stage charge pump to realize the output of positive voltage, negative voltage respectively, change the positive voltage of output and the size of negative voltage by the progression changing charge pump circuit, circuit structure is simple, and adjustable flexibly.This drive circuit realizes by design of integer electro-circuit utilizing pulse transformer to carry out signal isolation, thus the signal isolation method of photoelectric coupling is adopted compared with conventional driving circuit, drive circuit of the present invention without the need to extra independent current source, thus can save power supply, its better working stability.
As shown in Figure 5,6, driver element of the present invention comprises, a kind of drive circuit, comprises an a pulse square wave-generator MD1 and driver module MD2; The output OUT of pulse square wave-generator MD1 connects the first input end IN1 of driver module MD2, driver module MD2 also has the second input IN2 for inputting low frequency drive signal DRIVEA, this driver module comprises signaling conversion circuit unit 100 and drive circuit unit 200, is connected between signaling conversion circuit unit 100 and drive circuit unit 200 by pulse transformer T1.
Signaling conversion circuit unit 100 comprises two inputs that NAND gate unit 111 and two outputs of full bridge inversion circuit unit 112 NAND gate unit 101 are connected full bridge inversion circuit unit 112 respectively, pulse transformer T1 has former limit winding and secondary winding, two outputs of full bridge inversion circuit unit 112 connect two inputs of former limit winding respectively, and two outputs of secondary winding are connected with two inputs of drive circuit unit 200 respectively; Above-mentioned drive circuit unit 200 comprises full bridge rectifier 201 and output circuit 202, full bridge rectifier 201 is connected with two outputs of pulse transformer T1 secondary winding, this full bridge rectifier 201 has cathode output end and cathode output end, and output circuit 202 is connected with cathode output end with described cathode output end.
Wherein, in above-mentioned NAND gate unit 111, the first input end of NAND gate device UA is the first input end IN1 of driver module MD2, second input of this NAND gate device UA connects the first input end of NAND gate device UB, the first input end of NAND gate device UB is the second input IN2 of driver module MD2, and second input of this NAND gate device UB connects the output of NAND gate device UA.In above-mentioned full bridge inversion circuit unit 112, gate electrode resistance R101 is connected with the output of NAND gate device UB respectively with one end of gate electrode resistance R103, the other end of gate electrode resistance R101 connects the gate pole of P-channel field-effect transistor (PEFT) pipe V1, the source electrode of P-channel field-effect transistor (PEFT) pipe V1 connects one end of current-limiting resistance R105, the other end of current-limiting resistance R105 connects power supply VCC, power supply VCC is also connected with current-limiting resistance R106, the other end of this current-limiting resistance R106 connects the source electrode of P-channel field-effect transistor (PEFT) pipe V2, the gate pole connection door electrode resistance R102 of P-channel field-effect transistor (PEFT) pipe V2, the other end of gate electrode resistance R102 connects the output of NAND gate device UA, the output also connection door electrode resistance R104 of this NAND gate device UA, the other end of gate electrode resistance R104 connects the gate pole of N channel field-effect pipe V4, the source electrode of this N channel field-effect pipe V4 connects power supply ground, the other end of gate electrode resistance R103 is connected with the gate pole of N channel field-effect pipe V3, the source electrode of this N channel field-effect pipe V3 also connects power supply ground, the drain electrode of P-channel field-effect transistor (PEFT) pipe V2 is connected with one end of pulse transformer T1 former limit winding respectively with the drain electrode of N channel field-effect pipe V4, the drain electrode of P-channel field-effect transistor (PEFT) pipe V1 is connected with the other end of pulse transformer T1 former limit winding respectively with the drain electrode of N channel field-effect pipe V3.
Above-mentioned full bridge rectifier 201 comprises four diode D101, D102, D10103, D104, one end of pulse transformer T1 secondary winding connects the anode of diode D101 and the negative electrode of diode D10103 respectively, the negative electrode of diode D101 connects the negative electrode of diode D102, the anode of diode D102 is connected the other end of pulse transformer T1 secondary winding respectively with the negative electrode of diode D104, the anode of diode D104 is connected with the anode of diode D10103, in this full bridge rectifier 201, the anode of diode D101 or diode D102 is above-mentioned cathode output end, the negative electrode of diode D10103 or diode D104 is above-mentioned cathode output end.
Above-mentioned output circuit 202 comprises diode D105, P-channel field-effect transistor (PEFT) pipe V5, resistance R107 and resistance R108, diode D105 _ anode connects above-mentioned cathode output end, the gate pole of P-channel field-effect transistor (PEFT) pipe V5 and resistance R107, the other end of resistance R107 connects the drain electrode of above-mentioned cathode output end and P-channel field-effect transistor (PEFT) pipe V5, drive voltage signal output is formed between the source electrode of negative electrode connection P-channel field-effect transistor (PEFT) pipe V5 of diode D105 and the other end G of resistance R108, resistance R108 and above-mentioned cathode output end E.Field effect transistor V1, V2, V3, V4 and V5 can be MOSFET.
This drive circuit, mainly the operation principle of driver module is: the first input end IN1 of driver module MD2 is connected with the output OUT of pulse square wave-generator MD1, the second input IN2 of driver module MD2 is connected with external low frequency drive singal, under normal circumstances, the frequency range of pulse square wave that pulse square wave-generator MD1 exports be tens KHz to tens KHz, and the frequency range of the external low frequency drive singal DRIVEA be connected with input IN2 is between zero point several hertz to hundreds of hertz; Under the second input IN2 of driver module MD2 is the condition of high level: when the first input end IN1 of driver module MD2 is high level, the output pin of NAND gate device UA is low level, and the output pin of NAND gate device UB is then high level; When the first input end IN1 of driver module MD2 is low level, the output pin of NAND gate device UA is high level, and the output pin of NAND gate device UB is then low level.So when input IN2 is high level, the output pin of NAND gate device UA with UB exports the two-way frequency direct current high-frequency impulse complementary signal identical with described first input end IN1 with pulsewidth, the signal of this two-way complementation is by gate electrode resistance R101, R102, R103 and R104 drives by P-channel field-effect transistor (PEFT) pipe V1, V2 and N ditch place where Taoist rites are performed effectiveness pipe V3, the full bridge inverter that V4 forms, and then be ac high frequency pulse signal by the inversion of direct current high-frequency pulse signal, ac high frequency pulse signal isolates transformation via pulse transformer T1 again, the ac high frequency pulse signal that pulse transformer T1 exports is through diode D101, D102, after full bridge rectifier 201 rectification of D10103 and D104 composition, its cathode output end then has positive voltage to export, now P-channel field-effect transistor (PEFT) pipe V5 is in cut-off state because gate pole is identical with source voltage, so now just have driving voltage on drive voltage signal output G and E, finally make driven power tube conducting, under the second input IN2 of driver module MD2 is low level condition: the output pin of NAND gate device UA and UB all exports high level, thus make the field effect transistor V3 in inverter bridge and V4 conducting, thus winding two ends, pulse transformer T1 former limit all with power supply be connected and no-voltage, now pulse transformer T1 output does not have voltage yet, cause and produce voltage difference between the gate pole of P-channel field-effect transistor (PEFT) pipe V5 and source electrode and make its conducting, make drive voltage signal output G and E by R108 conducting, namely voltage is lost between G and E, driven power tube is finally caused to be in blocking state.In a word, the drive voltage signal exported between drive voltage signal output G and E follows the low frequency drive signal on driver module MD2 second input IN2, when this second input IN2 is high level, G and E of driver module just there is drive singal, otherwise then without drive singal, thus achieve the object of drive circuit.The voltage conversion circuit that the present embodiment provides, adopt multiple-stage charge pump to realize the output of positive voltage, negative voltage respectively, change the positive voltage of output and the size of negative voltage by the progression changing charge pump circuit, circuit structure is simple, and adjustable flexibly.This drive circuit realizes by design of integer electro-circuit utilizing pulse transformer to carry out signal isolation, thus the signal isolation method of photoelectric coupling is adopted compared with conventional driving circuit, drive circuit of the present invention without the need to extra independent current source, thus can save power supply, its better working stability.
As shown in Figure 7, first power carrier coupling channel 1051, second power carrier coupling channel 1052, filter circuit 1053, power carrier treatment circuit 1054 and carrier power amplifier circuit 1055, described first power carrier coupling channel 1051 is arranged between the live wire AC_L of ac cable and zero line AC_N, receives and send first carrier signal between the live wire AC_L and zero line AC_N of ac cable; Described second power carrier coupling channel 1052 is arranged between the ground wire AC_PE of ac cable and zero line AC_N, receives and send the second carrier signal between the ground wire AC_PE and zero line AC_N of ac cable.Because existing Noise and Interference is mainly between live wire and zero line, high-frequency interferencing signal is relatively more serious, couples a signal on zero line and ground wire, because do not have voltage between zero line and ground wire or do not have High-frequency Interference, comparatively speaking, do not have the interference signal between live wire and zero line large.Power carrier signal is after carrier power amplifier circuit sends, power carrier signal is coupled to the first power carrier coupling channel 1051 simultaneously, in second power carrier coupling channel 1,052 two passage, if the interference signal between live wire and zero line is larger, so power carrier signal can by the channel transfer of zero line and ground wire in next equipment, have received the coupled signal of two passages in next equipment simultaneously, as long as there is a passage capable of being normally to receive signal, so communication will go on, when well avoiding single channel transmission data, because of interference, cause cannot the problem of transmission information.Meanwhile, as long as this circuit increases by a road power carrier coupling channel, namely can realize multichannel carrier coupling, little to the transformation of available circuit, cost is little.
Simultaneously because two passages can signal transmission, also transfer of data can be carried out at direct current or when there is no voltage between ground wire AC_PE and zero line AC_N, just can only can carry out transfer of data when having alternating current with existing, expanding practicality.
Described first power carrier coupling channel 1051 comprises inductance L the 51, the 1 electric capacity C51 and the first coupling transformer T1 on May Day, described May Day, inductance L 51 was connected with electric capacity C51 on May Day and one end is connected with live wire AC_L, the other end is connected with the first coupling transformer T1, the side of described first coupling transformer T1 is connected with zero line AC_N with live wire AC_L respectively, and output, the filter circuit 1053 of opposite side and carrier power amplifier circuit 1055 are connected.Described second power carrier coupling channel 1052 comprises the second inductance L 52, five or two electric capacity C52 and the second coupling transformer T2, described second inductance L 52 is connected with the five or two electric capacity C52 and one end is connected with ground wire AC_PE, the other end is connected with the second coupling transformer T2, the side of described second coupling transformer T2 is connected with zero line AC_N with ground wire AC_PE respectively, and output, the filter circuit 1053 of opposite side and carrier power amplifier circuit 1055 are connected.
Coupled modes of the present invention can carry out high-low pressure isolation, and dielectric voltage withstand can reach 4KV.Have employed triple insulated wire two-wire and rich mode simultaneously.Because the present invention is 1:1 coupling, noise or interference can not be amplified, utilize triple insulated wire to carry out two-wire simultaneously and have mercy on, comparing traditional independent winding mode, can interference be reduced, ensure that signal is undistorted.Described first power carrier coupling channel 1051, second power carrier coupling channel 1052 is in parallel and be connected with one end of described filter circuit 1053, the other end of described filter circuit 1053 is connected with the input of power carrier treatment circuit 1054, the output of described power carrier treatment circuit 1054 is connected with the input of carrier power amplifier circuit 1055, and the output of described carrier power amplifier circuit 1055 is connected with described first power carrier coupling channel 1051, second power carrier coupling channel 1052 respectively.
Described filter circuit comprises high resistant low-resistance three rank filter, attenuator and amplitude limiter circuit, described high resistant low-resistance three rank filter comprises: the May 4th electric capacity C54 in parallel and the May 4th inductance L 54, five or five electric capacity C55 in parallel and the five or five inductance L 55, five or six electric capacity C56 in parallel and the 6th inductance L 6, five or seven electric capacity C57 and the five or eight electric capacity C58, five or five electric capacity C55 of described parallel connection is connected with earth terminal with the five or five inductance L 55 one end, one end of the other end and the May 4th electric capacity C54 in parallel and the May 4th inductance L 54, one end of five or eight electric capacity C58 is connected, one end of described five or seven electric capacity C57 is connected with coupling channel, the described other end of the five or seven electric capacity C57 is connected with the other end of the May 4th inductance L 54 with the May 4th electric capacity C54 of parallel connection, the described other end of the five or eight electric capacity C58 is connected with one end of the five or six inductance L 56 with the five or six electric capacity C56 of parallel connection.The present embodiment adopts three T-shaped rank filters to carry out filtering, and bandwidth ratio is wider, and filter effect is better, in other embodiments, also can adopt traditional π type filtering.Described the May 4th inductance L 54 is in parallel with the May 4th electric capacity C54, and the five or six inductance L 56 is in parallel with the five or six electric capacity C56, has intercepted the high frequency waves of more than 140K; Five or five inductance L 55 is in parallel with the five or five electric capacity C55, has intercepted the high frequency waves of below 120K, thus achieves the filtering of high resistant low-resistance.
Described attenuator comprise resistance R51 on May Day, the five or two resistance R52, May Day switching tube Q51 and control signal end CAGC, described May Day resistance R51 one end ground connection, described May Day resistance R51 the other end and control signal end CAGC, May Day switching tube Q51 control be connected, described May Day switching tube Q51 one end ground connection, the other end is connected with one end of the five or two resistance R52, and the other end of described five or two resistance R52 connects power carrier treatment circuit 1054.Power carrier signal can be passed through this circuit decay 60db, with the interference signal that decays by attenuator.
Described amplitude limiter circuit comprises contrary and diode D51 and D52 of parallel connection of both direction, one end ground connection of the diode of described parallel connection, another termination power carrier treatment circuit.Conducting voltage due to diode is 0.7V, by carrier signal amplitude limit within 0.7V, in order to avoid signal is excessive burn carrier chip.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. there is an electricity-saving appliance for power carrier unit, it is characterized in that, comprising: the first relay, second relay, first inductance of series connection and the second inductance, MCU module, and the power module, acquisition module, power line carrier module and the driver element that are connected with MCU module respectively;
Wherein, described first inductance is overvoltage winding, and described second inductance is for falling power winding;
Described power module provides operating voltage for described MCU module;
Described power line carrier module receives the power carrier signal sent by Centralized Controller, and sends to MCU module after described power carrier signal is carried out demodulation process, and receive the feedback command of described MCU module feedback, and convert described feedback command to power carrier signal, and sent to described Centralized Controller by being coupled in AC power cord, described feedback command is the work state information of present discharge lamp: described power line carrier module comprises the first power carrier coupling channel, the second power carrier coupling channel, described first power carrier coupling channel is arranged between the live wire of ac cable and zero line, receives and send first carrier signal between the live wire and zero line of ac cable, described second power carrier coupling channel is arranged between the ground wire of ac cable and zero line, receive between the ground wire and zero line of ac cable and send the second carrier signal and also comprise filter circuit, power carrier treatment circuit and carrier power amplifier circuit, described first power carrier coupling channel, second power carrier coupling channel is in parallel and be connected with one end of described filter circuit, the other end of described filter circuit is connected with the input of power carrier treatment circuit, the output of described power carrier treatment circuit is connected with the input of carrier power amplifier circuit, the output of described carrier power amplifier circuit respectively with described first power carrier coupling channel, second power carrier coupling channel is connected,
The power carrier signal that described MCU module sends according to described power line carrier module, or the voltage signal after insulation blocking that the described acquisition module received gathers, generate corresponding MCU instruction;
Described driver element receives described MCU instruction, drive described first relay or second actuating of relay, and described driver element comprises, pulse square wave-generator and at least one driver module;
The output of described pulse square wave-generator connects the first input end of driver module, and this pulse square wave-generator is to the first input end input high frequency square wave pulse signal of driver module, described driver module also has the second input for inputting low frequency drive signal, this driver module comprises signaling conversion circuit unit and drive circuit unit, is connected between signaling conversion circuit unit and drive circuit unit by pulse transformer;
When the second input of described driver module is high level, inputted low frequency drive signal and high frequency square wave pulse signal are converted to ac high frequency pulse signal by described signaling conversion circuit unit, described pulse transformer to this ac high frequency pulse signal carry out isolation transformation after by described drive circuit unit outputting drive voltage signal; Described driver module is set at least two, and the first input end of each driver module connects the output of described pulse square wave-generator respectively, and the second input of each driver module is respectively used to input corresponding low frequency drive signal;
Described power module comprises, one voltage conversion unit, an Overvoltage protecting unit and a power supply unit, the input of described voltage conversion unit is connected to receive the first voltage that described power supply unit provides with described power supply unit, the output of described voltage conversion unit is connected with described electronic component; Described Overvoltage protecting unit comprises signal input part, signal processing circuit, low pressure amplitude limiter circuit, high pressure amplitude limiter circuit, and wherein, described signal input part is connected to input resistance; Described low pressure amplitude limiter circuit comprises the first amplitude limit control voltage, the first divider resistance, the second divider resistance, the first amplitude limit electric capacity and NPN bipolar transistor; Described high pressure amplitude limiter circuit comprises the second amplitude limit control voltage, the 3rd divider resistance, the 4th divider resistance, the second amplitude limit electric capacity and PNP bipolar transistor.
2. have the electricity-saving appliance of power carrier unit according to claim 1, it is characterized in that, one end that the tie point that described first relay is connected with the second relay is connected with described first inductance and the second inductance is connected; The other end of described first inductance is connected with the first fixed contact of described first relay, and the other end of described second inductance is connected with the second fixed contact of described second relay; The moving contact of described first relay is connected with described acquisition module, and the moving contact of described second relay is connected with standard inductor.
3. the electricity-saving appliance with power carrier unit according to claim 2, is characterized in that, described voltage conversion unit comprises: power supply circuits, energy storage booster circuit, malleation produce circuit, negative voltage generating circuit and reference voltage generating circuit; Wherein, described energy storage booster circuit comprises boost chip and inductance;
The output of described power supply circuits is connected with the input of described boost chip and the first end of described inductance respectively;
Second end of described inductance produces the input of circuit with the control end of described boost chip, described malleation respectively, the input of described negative voltage generating circuit is connected with the input of described reference voltage generating circuit;
Described power supply circuits are used for providing unipolar input voltage;
The voltage at described inductance two ends for controlling the voltage at described inductance two ends, and is supplied to the generation of described malleation circuit, described negative voltage generating circuit and described reference voltage generating circuit by described boost chip respectively;
Described malleation produces circuit and is used for producing positive voltage according to the voltage at described inductance two ends;
Described negative voltage generating circuit is used for producing negative voltage according to the voltage at described inductance two ends;
Described reference voltage generating circuit is used for producing reference voltage according to the voltage at described inductance two ends.
4. the electricity-saving appliance with power carrier unit according to claim 3, it is characterized in that, it is the first charge pump circuit that described malleation produces circuit, wherein, described first charge pump circuit is used for producing positive voltage according to the voltage at described inductance two ends, and described first charge pump circuit comprises N level charge pump circuit, N be more than or equal to 1 positive integer.
5. the electricity-saving appliance with power carrier unit according to claim 4, is characterized in that, the N level charge pump circuit of described first charge pump circuit comprises the first electric capacity, the first diode and the second diode; Wherein,
The negative pole of described first electric capacity is connected with the second end of described inductance, and the positive pole of described first electric capacity is connected with the positive pole of described first diode and the negative pole of described secondth diode respectively; The positive pole of described second diode is connected with the negative pole of the first diode in the N-1 level charge pump circuit of described first charge pump circuit;
The negative pole of described first diode exports described positive voltage according to the cathode voltage of the voltage at described inductance two ends and described first electric capacity.
6. the electricity-saving appliance with power carrier unit according to claim 5, is characterized in that, the emitter of described NPN bipolar transistor and the emitter of PNP bipolar transistor are all connected on the input of signal processing circuit; Described first divider resistance is series between the first amplitude limit control voltage and the base stage of NPN bipolar transistor; Described second divider resistance and the first amplitude limit Capacitance parallel connection, this second divider resistance is all connected with the base stage of NPN bipolar transistor with one end of the first amplitude limit electric capacity; The other end of described second divider resistance and the first amplitude limit electric capacity and the collector electrode of NPN bipolar transistor are all connected to reference on the ground; Described 3rd divider resistance is series between the second amplitude limit control voltage and the base stage of PNP bipolar transistor; Described 4th divider resistance and the second amplitude limit Capacitance parallel connection, the 4th divider resistance is all connected with the base stage of PNP bipolar transistor with one end of the second amplitude limit electric capacity; Described 4th divider resistance and the other end of the second amplitude limit electric capacity and the collector electrode of PNP bipolar transistor are all connected to reference on the ground.
7. the electricity-saving appliance with power carrier unit according to claim 6, it is characterized in that, described first amplitude limit control voltage and the second amplitude limit control voltage are external dc voltage source, and the first amplitude limit control voltage is lower than reference ground voltage, and the second amplitude limit control voltage is higher than reference ground voltage.
8. the electricity-saving appliance with power carrier unit according to claim 7, it is characterized in that, described negative voltage generating circuit is the second charge pump circuit, wherein, described second charge pump circuit is used for exporting described negative voltage according to the voltage at described inductance two ends, and described second charge pump circuit comprises M level charge pump circuit, M be more than or equal to 1 positive integer.
9. the electricity-saving appliance with power carrier unit according to claim 8, it is characterized in that, described signaling conversion circuit unit comprises NAND gate unit and full bridge inversion circuit unit, two outputs of described NAND gate unit connect two inputs of described full bridge inversion circuit unit respectively, described pulse transformer has former limit winding and secondary winding, two outputs of described full bridge inversion circuit unit connect two inputs of described former limit winding respectively, two outputs of described secondary winding are connected with two inputs of described drive circuit unit respectively,
When the second input of described driver module is high level, described low frequency drive signal and high frequency square wave pulse signal are converted to the direct current high-frequency pulse signal of two-way complementation by described NAND gate unit, and the frequency of this direct current high-frequency pulse signal is identical with described high frequency square wave pulse signal with pulsewidth, the direct current high-frequency pulse signal inversion of two-way complementation is ac high frequency pulse signal by described full bridge inversion circuit unit.
10. the electricity-saving appliance with power carrier unit according to claim 9, it is characterized in that, in described NAND gate unit, the first input end of NAND gate device UA is the first input end IN1 of described driver module, second input of this NAND gate device UA connects the first input end of NAND gate device UB, the first input end of NAND gate device UB is the second input IN2 of described driver module, and second input of this NAND gate device UB connects the output of described NAND gate device UA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610102922.2A CN105578689A (en) | 2016-02-25 | 2016-02-25 | Power saver with power line carrier unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610102922.2A CN105578689A (en) | 2016-02-25 | 2016-02-25 | Power saver with power line carrier unit |
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| CN201610102922.2A Pending CN105578689A (en) | 2016-02-25 | 2016-02-25 | Power saver with power line carrier unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711922A (en) * | 2017-02-17 | 2017-05-24 | 中领世能（天津）科技有限公司 | Electrical shock protection device and power supply system |
| CN106711923A (en) * | 2017-02-17 | 2017-05-24 | 中领世能（天津）科技有限公司 | Isolation protection device and power supply system |
| CN109814399A (en) * | 2019-01-30 | 2019-05-28 | 吕树人 | The smart home system of carrier wave between a kind of zero curve based on ground |
-
2016
- 2016-02-25 CN CN201610102922.2A patent/CN105578689A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711922A (en) * | 2017-02-17 | 2017-05-24 | 中领世能（天津）科技有限公司 | Electrical shock protection device and power supply system |
| CN106711923A (en) * | 2017-02-17 | 2017-05-24 | 中领世能（天津）科技有限公司 | Isolation protection device and power supply system |
| CN109814399A (en) * | 2019-01-30 | 2019-05-28 | 吕树人 | The smart home system of carrier wave between a kind of zero curve based on ground |
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