CN201781421U - Phase-shift energy saving circuit controlling current - Google Patents
Phase-shift energy saving circuit controlling current Download PDFInfo
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- CN201781421U CN201781421U CN 201020197728 CN201020197728U CN201781421U CN 201781421 U CN201781421 U CN 201781421U CN 201020197728 CN201020197728 CN 201020197728 CN 201020197728 U CN201020197728 U CN 201020197728U CN 201781421 U CN201781421 U CN 201781421U
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Abstract
The utility model relates to an energy saving circuit which is used for reducing input consumption when a power supply is in standby or non-loaded state in the power supply field. The energy saving circuit adopts a phase-shift component which is connected in series between an electric appliance and an alternating current power supply. A switch circuit is adopted and is connected with the phase-shift component in parallel. The switch circuit is controlled by the current control circuit. The current control circuit controls the on-off of the switch circuit and realizes the on-off of the phase-shift component. The current control circuit comprises a current detection circuit unit, a rectifying filter circuit unit, a gain adjusting circuit unit and a voltage comparison driving circuit unit. The output end of the voltage comparison driving circuit unit is connected with the switch circuit unit. The energy saving circuit can be connected between the electric appliance and the power supply conveniently as a module and saves electric energy resources.
Description
Technical field
The utility model relates to field of power supplies, specifically is meant can reduce power supply at standby or a kind of energy-saving circuit of input power consumption when non-loaded.
Background technology
Various electric equipment productss have been indispensable parts during people live, and the extensive application of electric equipment products has brought huge energy resource consumption.Show that according to the China's energy office data 2009, Chinese whole society power consumption reached 36,430 hundred million kilowatt hours, increases by 5.96% on a year-on-year basis, increasing degree improves 0.47 percentage point than the previous year.The electrical network power consumption is increasing substantially, and energy supply reduces day by day, in order to tackle this global problem, comprises that the national governments and the mechanism of China issued and energy-saving and emission-reduction relevant policy and rules in succession.External power source efficiency rules V4 and ERP as U.S. efficiency standard EPS V2.0, Chinese efficiency standard GB 20943-2007, European Union instructs, the MEPS in Australia, the MKE of Korea S etc., do not meet the power supply of these standard-requireds, can not enter these countries and sell.The requirement of these standards is mainly reflected in two aspects: the one, and stand-by power consumption; The 2nd, average efficiency.The stand-by power consumption of power supply is the loss of fixing, and reduces stand-by power consumption and can reduce the waste in vain of electric energy quilt, helps energy-saving and environmental protection.
Stand-by power consumption is do not work the constant power loss when being in holding state of the function of tonic chord part of electric equipment.For example, after we use a teleswitch closing television, also be the remote-control receiving circuit power supply because the standby power of television set inside still is in on-state with electrical network, so television set is still expending electric energy under standby or sleep pattern.Although the power that standby power, remote-control receiving circuit consume is very little, owing to adopt inefficient power supply (as linear power supply), can't reduce the power consumption under the holding state, the result tends to waste several watts power.
No-load power consumption is meant equipment employed electric energy when disconnecting with load and not carrying out any function.For example, patch the power supply adaptor, charger of the portable set on wall socket etc.,, but still can consume the power of 0.1W to 1W though do not link to each other with equipment, have in addition consume more than the 2-3W.Though it is insignificant that the idling consumption of individual equipment may seem, the standby consumed power of every household electrical appliances of all families adds up, and is very surprising numerical value.Estimate that according to International Energy Agency the household electrical appliance consumption of global 5-15% all produces under standby mode.Along with the increase of popularizing and having the new equipment of Electronic Control and multiple function of household electrical appliance, this problem also will become increasingly conspicuous.
Can be divided into high frequency switch power and power frequency linear power supply by the working method power supply, this power supply of two types has developed and had produced many years, in social economy and people's life, brought into play important function, but, these adopt the power supply of conventional art, and stand-by power consumption is higher relatively, and this class number of power sources in moving and using at present is hundreds of millions of, therefore, wasted a large amount of electric energy.Along with national governments and mechanism have issued and energy-saving and emission-reduction relevant policy and rules in succession, power supply manufacturer has designed and has produced standby power less than 0.3W even be lower than the Switching Power Supply product that 30mW can satisfy standard, but generally be used to mate new electric equipment products, these high energy consumption power supply purposes are very extensive, enormous amount wants to replace fully at short notice, and expensive is sizable, the wasting of resources is also huge, and is very unrealistic; And, in some field, because of the noise of Switching Power Supply more much bigger than linear power supply, to some specific function can cause disturb and work undesired.
In sum, for waste and the Capital expenditure that reduces resource, also to satisfy society simultaneously to the requirement of energy savings, be necessary utility model go out a kind of do not destroy existing electric equipment power supply architecture and and the prerequisite of the annexation of power supply and electrical network be issued to the energy-saving circuit device of above-mentioned purpose.
The utility model content
The technical problem that the utility model need solve provides a kind of under the prerequisite of the annexation of not destroying existing electric equipment power supply architecture and power supply and electrical network, can reduce the energy-saving circuit of power supply in standby or the input power consumption when non-loaded.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: the phase-shift energy-saving circuit that a kind of Current Control is provided, comprise phase shifting component, described phase shifting component is series between power consumption equipment and the communication power supply, described phase shifting component is connected with the switching circuit unit, the switching circuit unit is connected with the current control circuit unit, and the switching circuit unit is controlled by access and the disconnection that phase shifting component was connected or turn-offed and then realized in the current control circuit unit.
Further, described energy-saving circuit also comprises the absorption circuit unit, and described absorption circuit unit is in parallel with phase shifting component.But described absorption circuit unit adopts the device of bidirectional flow overcurrent, comprises gas discharge tube or piezo-resistance or two-way TVS diode, the perhaps series circuit of being made up of resistance R and capacitor C.
Concrete, described current control circuit unit comprises the current detection circuit unit that is connected between communication power supply input port and the phase shifting component, the current rectifying and wave filtering circuit unit that is connected successively with the current detection circuit unit, gain adjusting circuit unit, voltage ratio are than drive circuit unit, and voltage ratio connects the switching circuit unit than the drive circuit unit output.Concrete, described phase shifting component adopts capacity cell or inductance element; Described current detection circuit unit is resistance or current transformer.
Further, the phase-shift energy-saving circuit of described Current Control further is included as the power circuit unit that inner each circuit unit provides working power.
Energy-saving circuit described in the utility model is connected in the input circuit of power supply as module, detect the size of current of reflected load amount through the current detection circuit unit of inside modules, detected current signal is used for the switch of control switch circuit unit after current rectifying and wave filtering circuit unit, gain adjusting circuit unit, the adjustment of voltage comparator circuit unit.When the load capacity of power supply is bigger, the current detection circuit unit detects current signal and exports after a series of processing the switching circuit unit is connected, phase shifting component is by the short circuit of switching circuit unit, and described energy-saving circuit module does not have influence substantially to the subscriber equipment power supply status; And when the subscriber equipment power supply is in zero load or no-load condition, the switching circuit unit disconnects, then phase shifting component is connected in series into power circuit, the phase shifting component owing to connected in the circuit, make not homophase of input current and input voltage, the product of voltage and electric current reduces, thereby reduces standby or the input power consumption when non-loaded, reaches purpose of energy saving.
The reduction power supply that skew takes place phase place at the phase place of inserting a kind of relative input voltage of input current that makes power supply between subscriber equipment power supply and the electric main or the relative input current of input voltage described in the utility model is in the energy-saving circuit module of standby or the input power consumption when non-loaded, make power supply significantly reduce in standby or the input power consumption when non-loaded, save electric energy, had remarkable social benefit and economic benefit.
With respect to prior art, the beneficial effect of circuit described in the utility model also is:
1), circuit is succinct, can realize modularization, is beneficial to large-scale production and installation, cost is low;
2), just need not to change and destroy in the structure of the existing power supply of utilization and operation and the annexation of power supply and electrical network, applying flexible facility;
3), make original stand-by power consumption after inserting this energy-conservation circuit, can satisfy requirements of saving energy than higher power supply product, and need not to reinvest design and make new energy-saving electric power and replace, reduced the waste and the financial resources input of resource.
Description of drawings
Fig. 1 is the phase-shift energy-saving circuit theory diagram of Current Control described in the utility model;
Fig. 2 is a kind of specific implementation schematic block circuit diagram that the phase-shift energy-saving circuit phase shifting component of Current Control described in the utility model is made up of inductance;
Fig. 3 is the another kind of specific implementation schematic block circuit diagram that the phase shifting component of the phase-shift energy-saving circuit module of Current Control described in the utility model is made up of electric capacity;
Fig. 4 is the absorption circuit unit built-up circuit schematic diagram of the phase-shift energy-saving circuit module of Current Control described in the utility model;
Fig. 5 is that the phase-shift energy-saving circuit of Current Control described in the utility model is implemented circuit theory diagrams;
Fig. 6 is that the phase-shift energy-saving circuit of Current Control described in the utility model is implemented two circuit theory diagrams.
Embodiment
For the ease of those skilled in the art will recognize that technical solutions of the utility model are described in further detail below in conjunction with specific embodiment and accompanying drawing.
The mentality of designing of energy-saving circuit described in the utility model is: adopt a phase shifting component, phase shifting component is series between power consumption equipment and the communication power supply, and adopt a switching circuit in parallel with this phase shifting component, described switching circuit is controlled by current control circuit, by switching on and off of current control circuit control switch circuit, and then the access and the disconnection of realization phase shifting component.And current control circuit comprises current detection circuit unit, current rectifying and wave filtering circuit unit, gain adjusting circuit unit, voltage ratio than drive circuit unit, and voltage ratio connects the switching circuit unit than the drive circuit unit output.Described energy-saving circuit inserts between various power consumption equipments and the power supply easily as module, the saving of flexible realization power resource.
As shown in Figure 1, described energy-saving circuit comprises ac input end mouth Vin1, Vin2 and output port Vo at least as modular form.Described energy-saving circuit module is concatenated into the point of cut-off place of any electric power connection line of original subscriber equipment power supply and electric main, the ac input end mouth Vin2 of described module and city are electrically connected, and the output end vo of module is connected with intercepted this root power input line of subscriber equipment power supply; Another root that the ac input end mouth Vin1 of module is connected to original subscriber equipment power supply and electric main is not blocked on the electric power connection line.
The concrete operation principle of the described energy-saving circuit of Fig. 1 is as follows: described current detection circuit unit and phase shifting component are to be serially connected in the power supply input circuit of subscriber equipment, the current detection circuit unit detects the size of current in the power supply input circuit, through the rectification of current rectifying and wave filtering circuit unit is that level and smooth direct current is after the gain adjusting circuit unit amplifies small voltage, input voltage compares drive circuit unit then, compare with a voltage reference, positive voltage of drive circuit output or no-voltage are gone the switch in the control switch circuit unit to disconnect or are closed, when the power supply of subscriber equipment does not have load or volt under very clear situation, electric current in the input circuit is very faint, resulting level deficiency after full-wave rectifier filter circuit unit and gain adjusting circuit cell processing is so that voltage ratio is exported positive driving voltage than drive circuit unit, switch Be Controlled in the switching circuit unit disconnects, this moment, the phase shifting component of inside modules was to be connected in the power supply input circuit of subscriber equipment, the power supply input current phase place of subscriber equipment is moved relative to input voltage phase generation hysteresis, the power input voltage phase place of subscriber equipment is moved relative to electric current generation hysteresis, make the power supply input current of subscriber equipment and the product of input current reduce, be that power has been reduced, thereby the power consumption when having realized reducing the zero load of power supply of subscriber equipment or standby, when the input current of the power supply of subscriber equipment reaches certain value, resulting level makes voltage ratio than the positive driving voltage of drive circuit unit output after full-wave rectifier filter circuit unit and gain adjusting circuit cell processing, switch in the switching circuit unit is closed, with the phase shifting component short circuit of inside modules, the output of the power supply of subscriber equipment there is not influence substantially.
During concrete enforcement, the phase shifting component of energy-saving circuit described in the utility model can adopt inductance element, as shown in Figure 2.Described inductance one end is connected with output end vo, switching circuit unit and the absorption circuit unit of module, the other end is connected with current detection circuit unit, switching circuit unit and absorption circuit unit, inductance is used for the phase-shift energy-saving circuit module of this Current Control, make this module after serial connection is gone into the power supply input circuit, the impedance of power supply input circuit is perception, the phase place of the current phase hysteresis input voltage of power supply input circuit, make the product of electric current and voltage reduce, promptly import effective power and be reduced, thereby realized reducing the function of stand-by power consumption.
As shown in Figure 3, the phase shifting component of described energy-saving circuit also can adopt capacity cell, and the link position of electric capacity is identical with above-mentioned inductance position.Electric capacity is used for the phase-shift energy-saving circuit module of this Current Control, make this module after serial connection is gone into the power supply input circuit, the impedance of power supply input circuit is capacitive, the phase place of the voltage-phase hysteresis input current of power supply input circuit, make the product of electric current and voltage reduce, promptly import effective power and be reduced, realized reducing the function of stand-by power consumption equally.
During concrete enforcement, but described energy-saving circuit absorbs the device that circuit unit adopts the bidirectional flow overcurrent, comprise gas discharge tube CDT, piezo-resistance VSR, two-way TVS diode, the 4th kind that perhaps is made up of the series circuit of resistance R and capacitor C absorbs circuit unit, as shown in Figure 4.
As Fig. 5 is the phase-shift energy-saving circuit one specific embodiment circuit diagram of Current Control described in the utility model.
In the present embodiment, in the energy-saving circuit module, the current detection circuit unit adopts resistance R 1; The switching circuit unit adopts bidirectional triode thyristor Q1; Absorb circuit unit and adopt piezo-resistance VSR1; Phase shifting component adopts inductance L 1; The power circuit unit comprises capacitor C 1, C2, C3 and diode D1, D2; Described current rectifying and wave filtering circuit unit comprises operational amplifier A, resistance R 2, R3, R4, diode D3, D4 and capacitor C 4; Described gain adjusting circuit unit comprises operational amplifier B, resistance R 5, R6, R7, R8; Described voltage ratio comprises operational amplifier C, D than drive circuit unit, resistance R 9, R10, R11, R12, R13, R14, diode D5, D6, D7 and capacitor C 5; Described capacitor C 1 one ends are connected with communication power supply input Vin1, and the other end is connected with diode D1 negative electrode, diode D2 anode; The negative terminal tie point V-of the anode of D1 and capacitor C 2 and the V-of operational amplifier A, B, C, D end are connected, and the anodal tie point V+ of the negative electrode of D2 and capacitor C 3 is connected with the positive power source terminal V+ of operational amplifier A, B, C, D; The anode of capacitor C 2 with receive module after the negative terminal of C3 links together exchange input Vin2 end; Current sense resistor R1 one another input of termination communication power supply Vin2, the other end all are connected with an end of resistance R 2, an end of inductance L 1, the end of absorber element piezo-resistance VSR1 and the T2 utmost point points of common connection of bidirectional triode thyristor Q1; The other end of resistance R 2 is connected with an end of operational amplifier A inverting input, diode D3 anode and resistance R 4, the D3 negative electrode connects the output and the diode D4 anode of operational amplifier A, one end of the anode of the other end of D4 negative electrode and R4, capacitor C 4, resistance R 5 and the homophase input+end of operational amplifier B are connected, and the other end of the negative terminal of capacitor C 4, resistance R 5 is received the interchange input Vin2 end of described module; The in-phase end of operational amplifier A connects by resistance R 3 and exchanges input Vin2 end; Homophase input+the end of operational amplifier B connects by resistance R 6 and exchanges input Vin2 end, the output of operational amplifier B connects the homophase input+end of operational amplifier C and connects interchange input Vin2 end by resistance R 8 by resistance R 12, the output of operational amplifier B also connects anti-phase input-end of operational amplifier D by resistance R 13, resistance R 7 is connected across anti-phase input-end and output of operational amplifier B; Resistance R 14 is connected across anti-phase input-end of operational amplifier D and the interchange of module is imported between the Vin2 end, homophase input+terminating diode D5 the anode of operational amplifier D, the output terminating diode D7 negative electrode of operational amplifier D, diode D7 anode connects the homophase input+end of operational amplifier C, diode D5 negative electrode is received the interchange input Vin2 end of module, one end of the anode of D5 and resistance R 9, anti-phase input-end of operational amplifier C links to each other, another termination V+ end points of resistance R 9, the output of operational amplifier C connects the anode of diode D6, the end of the negative electrode series resistor R10 of D6, the R10 other end and resistance R 11, capacitor C 5, the control utmost point G of bidirectional triode thyristor Q1 is connected, the other end of resistance R 11 and capacitor C 5 is connected with the T2 utmost point of bidirectional triode thyristor Q1, the T1 utmost point of bidirectional triode thyristor Q1 and the T2 utmost point are in parallel with piezo-resistance VSR1 and inductance L 1, the output Vo end of the T1 utmost point connection module of Q1, the T2 utmost point of Q1 is connected with resistance R 1.
Circuit working principle embodiment illustrated in fig. 5 is as follows: the interior power supply circuit unit of the phase-shift energy-saving circuit module of described Current Control is by capacitor C 1, C2, C3, elements such as diode D1, D2 are formed the negative and positive dual power of symmetrical voltage amplitude, for full-wave rectifier filter circuit unit, gain adjusting circuit unit, the voltage ratio of the phase-shift energy-saving circuit inside modules of Current Control provides the power supply supply than drive circuit unit; The current detection circuit unit of the phase-shift energy-saving circuit module of described Current Control is made up of resistance R 1, the phase shifting component of described module is made up of inductance L 1, the Vo end is held and exported to resistance R 1 with the input Vin2 that exchanges that inductance L 1 is serially connected in the phase-shift energy-saving circuit module of described Current Control, the resistance R 1 detected current signal that flows through this series loop is sent into by operational amplifier A, resistance R 2, R3, R4, diode D3, D4, the full-wave rectifier filter circuit unit that capacitor C 4 is formed carries out full-wave rectifier filter, the electric current that flows through because of resistance R 1 is interchange and very faint, can not adopt the full-wave rectifying circuit of diode merely, usually the conducting voltage of ordinary silicon diode is wanted more than the 0.6V, the pressure drop deficiency that produces in resistance R 1 is so that the silicon diode conducting, with the variation that detects less than electric current, if increase the R1 resistance value, will produce very big loss, lower efficiency.Resistance R 1 detected current signal is exported very faint DC level behind the full-wave rectifier filter circuit unit, need through by by operational amplifier B, resistance R 5, R6, R7, R8 forms to such an extent that the gain adjusting circuit unit amplifies this faint DC level, be input to then by by operational amplifier C, D, resistance R 9, R10, R11, R12, R13, R14, diode D5, D6, D7, the voltage ratio that capacitor C 5 is formed compares than drive circuit unit and the voltage reference of being made up of resistance R 9 and diode D5, bidirectional switch in the switching circuit unit that voltage ratio goes to be made up of bidirectional triode thyristor Q1 in the control module than the drive circuit unit output signal disconnects or closes, be connected in parallel on forming phase shifting component by inductance L 1 and just realizing that electric current and voltage-phase by the function of phase shift or by the bidirectional switch short circuit, lose the function of phase shift of two ends, switching circuit unit; Voltage ratio than in the drive circuit unit by operational amplifier D, resistance R 13, R14, it is when load current surpasses set point that the local circuit that diode D7 forms mainly acts on, higher voltage is compared in operational amplifier B output, input operational amplifier D after resistance R 13, R14 decay, operational amplifier D output low level, the input of operational amplifier C is blocked, operational amplifier C output low level then, the bidirectional switch of switching circuit unit disconnects, phase shifting component is started working, and load current is reduced, and plays overcurrent protection; The absorption circuit unit of being made up of piezo-resistance VSR1 that is connected in parallel on the phase shifting component two ends is mainly used to absorb because of the bidirectional switch snap switch causes the mutation voltage that produces at the inductance two ends, and the circuit element of protection inside and outside is not damaged and personal safety.
As Fig. 6 is another specific embodiment circuit diagram of phase-shift energy-saving circuit of Current Control described in the utility model.
In the present embodiment, in the described energy-saving circuit module, the current detection circuit unit adopts inductance TR1; The switching circuit unit adopts bidirectional triode thyristor Q2; Absorb circuit unit and adopt piezo-resistance VSR2; Phase shifting component adopts inductance L 2; The power circuit unit comprises capacitor C 6, C7, diode D12, D13; Described current rectifying and wave filtering circuit unit comprises diode D8, D9, D10, D11, capacitor C 8; Described gain adjusting circuit unit comprises resistance R 15, R16, R17, R18, R19; Described voltage ratio comprises operational amplifier E, F than drive circuit unit, resistance R 20, R21, R22, diode D14, D15, D16 and capacitor C 9.Described capacitor C 6 one ends are connected with ac input end Vin1, the other end is connected with diode D12 negative electrode and diode D13 anode, the D12 anode is connected with ac input end Vin2, the anode tie point V+ of D13 negative electrode and capacitor C 7 is connected to operational amplifier power pins V+ end, and the negative terminal of capacitor C 7 meets ac input end Vin2; The a termination that is used for the current transformer TR1 of current detecting exchanges input Vin2 end, b end and inductance L 2 series connection, and the c end is connected with diode D8 negative electrode and D10 anode, and the d end is connected with diode D9 negative electrode and D11 anode; Be connected with ac input end Vin2 after the anode of diode D8, D9 is connected together, be connected with resistance R 15, R16, R18 and capacitor C 8 anodes after the negative electrode of diode D10, D11 is connected together; Homophase input+the end of one end of resistance R 16 other ends and resistance R 17, diode D14 anode and operational amplifier E links to each other, anti-phase input-end of one end of resistance R 18 other ends and resistance R 19 and operational amplifier F links to each other, and the other end of the negative terminal of capacitor C 8 and resistance R 15, R17, R19 and diode D15 negative electrode link together afterwards and the input Vin2 end that exchanges of module is connected; The output of calculating amplifier F connects the negative electrode of diode D14; One end of the anode of diode D15 and resistance R 20, anti-phase input-the end of operational amplifier E and the homophase input+end of operational amplifier E link to each other, another termination V+ end points of resistance R 20, the output of operational amplifier E connects the anode of diode D16, the negative electrode series resistor R21 of D16, the R21 other end and resistance R 22, capacitor C 9, the control utmost point G of bidirectional triode thyristor Q2 is connected, the other end of resistance R 21 and capacitor C 9 is connected with the T2 utmost point of bidirectional triode thyristor Q2, the T1 utmost point of bidirectional triode thyristor Q2 and the T2 utmost point are in parallel with piezo-resistance VSR2 and inductance L 2, the output Vo end of the T1 utmost point connection module of Q2, the T2 utmost point of Q2 and the b of TR1 end are connected.
The operation principle of circuit embodiment illustrated in fig. 6 is as follows: the interior power supply circuit unit of the phase-shift energy-saving circuit module of described Current Control is by capacitor C 6, C7, and elements such as diode D12, D13 are formed positive supply and provided the power supply supply than drive circuit unit for voltage ratio; The current detection circuit unit of the phase-shift energy-saving circuit module of described Current Control is made up of current transformer TR1, the phase shifting component of described module is made up of inductance L 2, current transformer TR1 holds and exports the Vo end with the input Vin2 that exchanges that inductance L 2 is serially connected in the phase-shift energy-saving circuit module of described Current Control, the detected current signal that flows through this series loop of the elementary winding of current transformer TR1, current transformer TR1 magnetic core adopts high permeability, the magnetic core of high saturation magnetic flux, if the secondary load impedance of current transformer is than higher, compare higher voltage secondary will the inducing of current transformer, process is by diode D8, D9, D10, D11, capacitor C 8, the direct voltage of exporting behind the full-wave rectifier filter circuit unit that resistance R 15 is formed passes through by resistance R 16 again, the gain that R17 forms is adjusted to appropriate level less than 1 gain adjusting circuit unit with voltage amplitude, be input to then by operational amplifier E, F, resistance R 18, R19, R20, R21, R22, diode D14, D15, D16, the voltage ratio that capacitor C 9 is formed compares than drive circuit unit and the voltage reference of being made up of resistance R 20 and diode D15, bidirectional switch in the switching circuit unit that voltage ratio goes to be made up of bidirectional triode thyristor Q2 in the control module than the drive circuit unit output signal disconnects or closes, be connected in parallel on forming phase shifting component by inductance L 2 and just realizing that electric current and voltage-phase are by the function of phase shift or by the bidirectional switch short circuit of two ends, switching circuit unit, lose the function of phase shift, in addition, by operational amplifier F, resistance R 18, R19, the voltage ratio that elements such as diode D14 are formed can realize the function of overcurrent protection than the drive circuit unit local circuit; The absorption circuit unit of being made up of piezo-resistance VSR2 that is connected in parallel on the phase shifting component two ends is mainly used to absorb because of the bidirectional switch snap switch causes the mutation voltage that produces at the inductance two ends, and the circuit element of protection inside and outside is not damaged and personal safety.
Need to prove; above-mentioned execution mode only is the preferable embodiment of the utility model; it can not be interpreted as restriction to written or printed documents utility model protection scope; do not breaking away under this utility model design prerequisite, any equalization that this utility model is done changes the protection range that all belongs to this utility model with modification.
Claims (9)
1. the phase-shift energy-saving circuit of a Current Control, comprise phase shifting component, described phase shifting component is series between power consumption equipment and the communication power supply, it is characterized in that: described phase shifting component is connected with the switching circuit unit, the switching circuit unit is connected with the current control circuit unit, and the switching circuit unit is controlled by access and the disconnection that phase shifting component was connected or turn-offed and then realized in the current control circuit unit.
2. the phase-shift energy-saving circuit of Current Control according to claim 1, it is characterized in that: also comprise the absorption circuit unit, described absorption circuit unit is in parallel with phase shifting component.
3. the phase-shift energy-saving circuit of Current Control according to claim 2, it is characterized in that: described current control circuit unit comprises the current detection circuit unit that is connected between communication power supply input port and the phase shifting component, the current rectifying and wave filtering circuit unit that is connected successively with the current detection circuit unit, gain adjusting circuit unit, voltage ratio are than drive circuit unit, and voltage ratio connects the switching circuit unit than the drive circuit unit output.
4. the phase-shift energy-saving circuit of Current Control according to claim 3, it is characterized in that: but described absorption circuit unit adopts the device of bidirectional flow overcurrent, comprise gas discharge tube or piezo-resistance or two-way TVS diode, perhaps adopt the series circuit of forming by resistance and electric capacity.
5. the phase-shift energy-saving circuit of Current Control according to claim 4 is characterized in that: described phase shifting component employing capacity cell or inductance element.
6. the phase-shift energy-saving circuit of Current Control according to claim 5, it is characterized in that: described current detection circuit unit is resistance R 1 or current transformer TR1.
7. the phase-shift energy-saving circuit of Current Control according to claim 6 is characterized in that: the phase-shift energy-saving circuit of described Current Control further is included as the power circuit unit that inner each circuit unit provides power supply.
8. the phase-shift energy-saving circuit of Current Control according to claim 7 is characterized in that: described current detection circuit unit employing resistance R 1; Described switching circuit unit adopts bidirectional triode thyristor Q1; Described absorption circuit unit adopts piezo-resistance VSR1; Described phase shifting component adopts inductance L 1; Described power circuit unit comprises capacitor C 1, C2, C3 and diode D1, D2; Described current rectifying and wave filtering circuit unit comprises operational amplifier A, resistance R 2, R3, R4, diode D3, D4 and capacitor C 4; Described gain adjusting circuit unit comprises operational amplifier B, resistance R 5, R6, R7, R8; Described voltage ratio comprises operational amplifier C, D than drive circuit unit, resistance R 9, R10, R11, diode D5, D6 and capacitor C 5; Described capacitor C 1 one ends are connected with communication power supply input Vin1, and the other end is connected with diode D1 negative electrode, diode D2 anode; The negative terminal tie point V-of the anode of D1 and capacitor C 2 and the V-of operational amplifier A, B, C, D end are connected, and the anodal tie point V+ of the negative electrode of D2 and capacitor C 3 is connected with the positive power source terminal V+ of operational amplifier A, B, C, D; The anode of capacitor C 2 with receive phase-shift energy-saving circuit after the negative terminal of C3 links together exchange input Vin2 end; Current sense resistor R1 one another input of termination communication power supply Vin2, the other end all are connected with an end of resistance R 2, an end of inductance L 1, the end of absorber element piezo-resistance VSR1 and the T2 utmost point points of common connection of bidirectional triode thyristor Q1; The other end of resistance R 2 is connected with an end of operational amplifier A inverting input, diode D3 anode and resistance R 4, the D3 negative electrode connects the output and the diode D4 anode of operational amplifier A, one end of the anode of the other end of D4 negative electrode and R4, capacitor C 4, resistance R 5 and the homophase input+end of operational amplifier B are connected, and the other end of the negative terminal of capacitor C 4, resistance R 5 is received the interchange input Vin2 end of described phase-shift energy-saving circuit; The in-phase end of operational amplifier A connects by resistance R 3 and exchanges input Vin2 end; Homophase input+the end of operational amplifier B connects by resistance R 6 and exchanges input Vin2 end, the output of operational amplifier B connects the homophase input+end of operational amplifier C and connects interchange input Vin2 end by resistance R 8 by resistance R 12, the output of operational amplifier B also connects anti-phase input-end of operational amplifier D by resistance R 13, resistance R 7 is connected across anti-phase input-end and output of operational amplifier B; Resistance R 14 is connected across anti-phase input-end of operational amplifier D and the interchange of phase-shift energy-saving circuit is imported between the Vin2 end, homophase input+terminating diode D5 the anode of operational amplifier D, the output terminating diode D7 negative electrode of operational amplifier D, diode D7 anode connects the homophase input+end of operational amplifier C, diode D5 negative electrode is received the interchange input Vin2 end of phase-shift energy-saving circuit, one end of the anode of D5 and resistance R 9, anti-phase input-end of operational amplifier C links to each other, another termination V+ end points of resistance R 9, the output of operational amplifier C connects the anode of diode D6, the end of the negative electrode series resistor R10 of D6, the R10 other end and resistance R 11, capacitor C 5, the control utmost point G of bidirectional triode thyristor Q1 is connected, the other end of resistance R 11 and capacitor C 5 is connected with the T2 utmost point of bidirectional triode thyristor Q1, the T1 utmost point of bidirectional triode thyristor Q1 and the T2 utmost point are in parallel with piezo-resistance VSR1 and inductance L 1, the T1 utmost point of Q1 connects the output Vo end of phase-shift energy-saving circuit, and the T2 utmost point of Q1 is connected with resistance R 1.
9. the phase-shift energy-saving circuit of Current Control according to claim 7 is characterized in that: described current detection circuit unit employing inductance TR1; Described switching circuit unit adopts bidirectional triode thyristor Q2; Described absorption circuit unit adopts piezo-resistance VSR2; Described phase shifting component adopts inductance L 2; Described power circuit unit comprises capacitor C 6, C7 and diode D12, D13; Described current rectifying and wave filtering circuit unit comprises diode D8, D9, D10, D11 and capacitor C 8; Described gain adjusting circuit unit comprises resistance R 15, R16, R17, R18, R19; Described voltage ratio comprises operational amplifier E, F than drive circuit unit, resistance R 20, R21, R22, diode D14, D15, D16 and capacitor C 9; Described capacitor C 6 one ends are connected with ac input end Vin1, the other end is connected with diode D12 negative electrode and diode D13 anode, the D12 anode is connected with ac input end Vin2, the anode tie point V+ of D13 negative electrode and capacitor C 7 is connected to operational amplifier power pins V+ end, and the negative terminal of capacitor C 7 meets ac input end Vin2; The a termination that is used for the current transformer TR1 of current detecting exchanges input Vin2 end, b end and inductance L 2 series connection, and the c end is connected with diode D8 negative electrode and D10 anode, and the d end is connected with diode D9 negative electrode and D11 anode; Be connected with ac input end Vin2 after the anode of diode D8, D9 is connected together, be connected with resistance R 15, R16, R18 and capacitor C 8 anodes after the negative electrode of diode D10, D11 is connected together; Homophase input+the end of one end of resistance R 16 other ends and resistance R 17, diode D14 anode and operational amplifier E links to each other, anti-phase input-end of one end of resistance R 18 other ends and resistance R 19 and operational amplifier F links to each other, and the other end of the negative terminal of capacitor C 8 and resistance R 15, R17, R19 and diode D15 negative electrode link together afterwards and the input Vin2 end that exchanges of phase-shift energy-saving circuit is connected; The output of operational amplifier F connects the negative electrode of diode D14; One end of the anode of diode D15 and resistance R 20, anti-phase input-the end of operational amplifier E and the homophase input+end of operational amplifier E link to each other, another termination V+ end points of resistance R 20, the output of operational amplifier E connects the anode of diode D16, the negative electrode series resistor R21 of D16, the R21 other end and resistance R 22, capacitor C 9, the control utmost point G of bidirectional triode thyristor Q2 is connected, the other end of resistance R 21 and capacitor C 9 is connected with the T2 utmost point of bidirectional triode thyristor Q2, the T1 utmost point of bidirectional triode thyristor Q2 and the T2 utmost point are in parallel with piezo-resistance VSR2 and inductance L 2, the T1 utmost point of Q2 connects the output Vo end of phase-shift energy-saving circuit, and the T2 utmost point of Q2 and the b of TR1 end are connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020197728 CN201781421U (en) | 2010-05-18 | 2010-05-18 | Phase-shift energy saving circuit controlling current |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020197728 CN201781421U (en) | 2010-05-18 | 2010-05-18 | Phase-shift energy saving circuit controlling current |
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| CN201781421U true CN201781421U (en) | 2011-03-30 |
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| CN 201020197728 Expired - Lifetime CN201781421U (en) | 2010-05-18 | 2010-05-18 | Phase-shift energy saving circuit controlling current |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834536A (en) * | 2010-05-18 | 2010-09-15 | 天宝电子（惠州）有限公司 | Phase-shift energy-saving circuit controlled by current |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834536A (en) * | 2010-05-18 | 2010-09-15 | 天宝电子（惠州）有限公司 | Phase-shift energy-saving circuit controlled by current |
| CN101834536B (en) * | 2010-05-18 | 2012-05-23 | 天宝电子（惠州）有限公司 | Phase-shift energy-saving circuit controlled by current |
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Granted publication date: 20110330 Effective date of abandoning: 20120523 |