CN103425071A - Switching power energy efficiency control circuit - Google Patents
Switching power energy efficiency control circuit Download PDFInfo
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- CN103425071A CN103425071A CN2013103596869A CN201310359686A CN103425071A CN 103425071 A CN103425071 A CN 103425071A CN 2013103596869 A CN2013103596869 A CN 2013103596869A CN 201310359686 A CN201310359686 A CN 201310359686A CN 103425071 A CN103425071 A CN 103425071A
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Abstract
The invention relates to a switching power energy efficiency control circuit comprising a switching power circuit, an awakening circuit and a holding circuit. The switching power circuit is used for providing working voltage to the holding circuit in working condition. The awakening circuit is used for driving a switching circuit to be switched on in stand-by condition after receiving sound signals so as to enable a supply circuit to provide working voltage to a PWM (pulse width modulation) controller via the switching circuit. The holding circuit is used for driving the switching circuit to be switched on continuously in working condition after receiving concessive sound signals, and driving the switching circuit to be switched off after the sound signals can not be received in a preset time, so that the supply circuit can not provide working voltage to the PWM controller through the switching circuit. With the switching power energy efficiency control circuit, sound signals can be detected, normal switching power can be controlled directly, automatically stand-by and automatic awakening functions can be realized, and stand-by energy consumption can be maintained at a low level.
Description
Technical field
The present invention relates to the efficiency control circuit, be specifically related to Switching Power Supply efficiency control circuit.
Background technology
The implementation of Energy Efficiency Standard (such as ErP), proposed new requirement to the design of audio-frequency power amplifier.ErP requires audio-frequency power amplifier in obsolete situation, through certain hour, can automatically enter holding state, and requires power consumption now to be less than certain standard (such as 0.5W).In order to meet this requirement, usual way is to use to meet the Switching Power Supply of green standard, and the power amplifier chips with idle function.Yet such scheme has been raised the cost of product largely, and need to import a large amount of new materials, this has proposed larger challenge just to upgrading existing product line.
Summary of the invention
The object of the invention is to propose a kind of Switching Power Supply efficiency control circuit, it can the high problem of workout cost.
In order to achieve the above object, the technical solution adopted in the present invention is as follows:
Switching Power Supply efficiency control circuit, it comprises switching power circuit, wake-up circuit, holding circuit, on-off circuit and the feed circuit with PWM controller, switching power circuit, wake-up circuit and feed circuit Jun Yu city are electrically connected to;
Described switching power circuit, in working order the time, for holding circuit provides operating voltage;
Described wake-up circuit, for when the holding state, after receiving sound signal, the driving switch circuit turn-on, so that feed circuit provide operating voltage by on-off circuit for the PWM controller;
Described holding circuit, while being used in working order, when receiving lasting sound signal, driving switch circuit turn-on constantly, after in certain Preset Time, not receiving sound signal, the driving switch circuit is closed, so that feed circuit can not provide operating voltage for the PWM controller by on-off circuit;
Wherein,
Described duty is: PWM controller and holding circuit all work on power;
Described holding state is: the equal power down of PWM controller and holding circuit quits work.
Preferably, described holding circuit comprises chip IC 8, capacitor C 108, capacitor C 62, resistance R 132, resistance R 116, resistance R 117, resistance R 121, triode Q12, capacitor C 38, resistance R 122, resistance R 124, diode D4, triode Q4, resistance R 125, capacitor C 80, capacitor C 56, resistance R 130, diode D12 and resistance R 28; One end of capacitor C 62 is by capacitor C 108 ground connection, one end of capacitor C 62 is for received audio signal, the other end of capacitor C 62 is connected with the base stage of triode Q12 by resistance R 116, the other end of capacitor C 62 is by resistance R 132 ground connection, and the other end of capacitor C 62 also is connected with the collector of triode Q12 by resistance R 117; The grounded emitter of triode Q12, the collector of triode Q12 is connected with the feeder ear+VCC of switching power circuit by resistance R 121, and the collector of triode Q12 also is connected with the base stage of triode Q4 by capacitor C 38, resistance R 122 successively; The base stage of triode Q4 also is connected with the feeder ear+VCC of switching power circuit by resistance R 124, resistance R 28 successively, and diode D4 is in parallel with resistance R 124; The emitter of triode Q4 is connected with the feeder ear+VCC of switching power circuit by resistance R 28; The power end VDD of chip IC 8 all is connected with the emitter of triode Q4 with an end of capacitor C 80, the other end ground connection of capacitor C 80; One end of the input end IN of chip IC 8, an end of capacitor C 56 and resistance R 125 all is connected with the collector of triode Q4, the equal ground connection of the other end of the other end of capacitor C 56 and resistance R 125; The output terminal OUT of chip IC 8 is connected with the first input end of on-off circuit by resistance R 130, diode D12 successively; Described civil power comprises input end AC1 and input end AC2.
Preferably, described wake-up circuit comprises capacitor C 58, capacitor C 59, diode D6, diode D5, diode D7, diode D8, capacitor C 107, capacitor C 101, stabilivolt ZD4, triode Q13, resistance R 104, capacitor C 112, diode D9, resistance R 109, resistance R 107, capacitor C 61, diode D10, resistance R 108, capacitor C 111, diode D3, resistance R 97, capacitor C 104, triode Q14, resistance R 98, resistance R 103, resistance R 102, resistance R 101, capacitor C 103, resistance R 106 and capacitor C 208; One end of capacitor C 103 is by capacitor C 208 ground connection, and an end of capacitor C 103 is for received audio signal, and the other end of capacitor C 103 is connected with the base stage of triode Q14 by resistance R 98, and the other end of capacitor C 103 is also by resistance R 106 ground connection; The grounded emitter of triode Q14; Described civil power comprises input end AC1 and input end AC2; Input end AC1 is connected with the emitter of triode Q13 by capacitor C 58, diode D8 successively, and capacitor C 58 is by diode D6 ground connection; Input end AC2 is connected with the emitter of triode Q13 by capacitor C 59, diode D7 successively, and capacitor C 59 is by diode D5 ground connection; The end of one end of capacitor C 107, an end of capacitor C 101 and stabilivolt ZD4 all is connected with the emitter of triode Q13; The equal ground connection of the other end of the other end of the other end of capacitor C 107, capacitor C 101 and stabilivolt ZD4; One end of resistance R 104 is connected with the collector of triode Q13, and the other end of resistance R 104 is by capacitor C 112 ground connection, and the other end of resistance R 104 also is connected with the first input end of on-off circuit; One end of resistance R 107 is connected with the feeder ear+VCC of switching power circuit, and the other end of resistance R 107 is successively by capacitor C 61, capacitor C 111 ground connection; The negative electrode of diode D10 is connected with the other end of electric capacity R104, and the anodic bonding of diode D10 is between capacitor C 61 and capacitor C 111, and resistance R 108 is in parallel with diode D10; The negative electrode of diode D3 is connected with the emitter of triode Q13, the anode of diode D3 is connected with the base stage of triode Q13, the anode of diode D3 also is connected with the collector of triode Q14 by resistance R 97, capacitor C 104 successively, and resistance R 103 is in parallel with diode D3; Feeder ear+the VCC of switching power circuit is also successively by diode D9, resistance R 109, resistance R 102, resistance R 101, resistance R 106 ground connection, and the collector of triode Q14 also is connected between resistance R 102 and resistance R 101; The emitter of triode Q13 also is connected between resistance R 109 and resistance R 102; The emitter of triode Q13 also is connected with the second input end of on-off circuit.
Preferably, described on-off circuit comprises resistance R 92, resistance R 105, capacitor C 106, stabilivolt ZD2, triode Q10, triode Q9, resistance R 111, resistance R 110, photoelectrical coupler IC9, resistance R 114, resistance R 115, resistance R 99, capacitor C 39, resistance R 86, triode Q5, triode Q8, resistance R 112, resistance R 85, stabilivolt ZD5, triode Q7 and resistance R 77; One end of resistance R 92 is connected with the emitter of triode Q13, and the other end of resistance R 92 is connected with the electrode input end of photoelectrical coupler IC9 by resistance R 105, and the cathode output end of photoelectrical coupler IC9 is connected with resistance R 92 by stabilivolt ZD2; One end of capacitor C 106 is connected with the electrode input end of photoelectrical coupler IC9, and the other end of capacitor C 106 is connected with the cathode output end of photoelectrical coupler IC9; The emitter of triode Q10 is connected with the cathode output end of photoelectrical coupler IC9, the base stage of triode Q10 is connected with the collector of triode Q9, the collector of triode Q10 is connected with the emitter of triode Q9 by resistance R 111, the grounded collector of triode Q10; The base stage of triode Q9 is by resistance R 110 ground connection; One end of resistance R 92 is as the second input end of on-off circuit, and the base stage of triode Q9 is as the first input end of on-off circuit; The emitter output terminal of photoelectrical coupler IC9 is by resistance R 115 ground connection; The collector input end of photoelectrical coupler IC9 is connected with the base stage of triode Q8 by resistance R 114, the collector input end of photoelectrical coupler IC9 also is connected with the base stage of triode Q5 by resistance R 114, resistance R 99, resistance R 112 successively, the emitter of triode Q5 is connected between resistance R 99 and resistance R 112, the collector of triode Q5 is connected with the base stage of triode Q8, the grounded emitter of triode Q8; The base stage of triode Q8 is also by resistance R 86 ground connection, and the collector of triode Q5 is also by capacitor C 39 ground connection; The collector of triode Q7 is connected with the emitter of triode Q5 by resistance R 85, and the emitter of triode Q7 is by resistance R 77 ground connection, and the base stage of triode Q7 is by stabilivolt ZD5 ground connection, and the base stage of triode Q7 also is connected with the emitter of triode Q5; The voltage output end VDD of described feed circuit is connected with the collector of triode Q7 by a resistance R 113, and the emitter of triode Q7 is connected with the power end VDD of PWM controller.
Preferably, described feed circuit comprise resistance R 222, resistance R 123, diode D40, resistance R 119, resistance R 120, resistance R 118, capacitor C 37 and capacitor C 36; Input end AC1 is connected with resistance R 113 by resistance R 22, diode D40, resistance R 119, resistance R 120 successively, and the connected node of resistance R 120 and resistance R 113 is as the voltage output end VDD of feed circuit; Input end AC1 also is connected between resistance R 222 and diode D40 by resistance R 123; Resistance R 120 is also respectively by resistance R 118, capacitor C 37, capacitor C 36 ground connection.
The present invention has following beneficial effect:
By the detection to sound signal, directly common Switching Power Supply is controlled, realize the function that automatically enters holding state and automatically wake up, and make standby energy consumption maintain very low level.During use, only needing directly to connect efficiency control circuit of the present invention on common switching power circuit gets final product, the switching power source chip that meets green standard without replacing, the power amplifier chips that there is idle function without replacing, can to original non-ErP product, be upgraded easily, both larger providing cost savings, also accelerated the construction cycle.
The accompanying drawing explanation
Fig. 1 is the functional-block diagram that the present invention applies in audio-frequency power amplifier;
The functional-block diagram that Fig. 2 is Switching Power Supply efficiency control circuit of the present invention;
The circuit diagram that Fig. 3 is Switching Power Supply efficiency control circuit of the present invention;
The enlarged drawing that Fig. 4 is the switching power circuit in Fig. 3;
The enlarged drawing that Fig. 5 is the feed circuit in Fig. 3 (part-structure is in Fig. 4);
The enlarged drawing that Fig. 6 is the on-off circuit in Fig. 3;
The enlarged drawing that Fig. 7 is the wake-up circuit in Fig. 3;
The enlarged drawing that Fig. 8 is the holding circuit in Fig. 3.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the invention will be further described.
As shown in Figure 1, the present embodiment can be applicable in audio-frequency power amplifier.Efficiency control circuit 1 is according to the duty that has or not to come gauge tap power circuit 2 of sound signal 100, switching power circuit 2 is for driving audio-frequency power amplifier 3 work, so that 3 pairs of sound signals 100 of audio-frequency power amplifier are processed, thereby play music.It should be noted that, the switching power circuit 2 of the present embodiment is common switching power source chip, does not have the switching power source chip of green functional, and audio-frequency power amplifier 3 is also the common audio-frequency power amplifier that does not possess idle function.
As shown in Figure 2, a kind of Switching Power Supply efficiency control circuit of the present embodiment, it comprises switching power circuit 2, wake-up circuit 11, holding circuit 12, on-off circuit 13 and the feed circuit 14 with PWM controller 21, and switching power circuit 2, wake-up circuit 11 and feed circuit 14Jun Yu city are electrically connected to.Described switching power circuit 2, in working order the time, for holding circuit 12 provides operating voltage; Described wake-up circuit 11, for when the holding state, after receiving sound signal 100,13 conductings of driving switch circuit, so that feed circuit 14 provide operating voltage by on-off circuit 13 for PWM controller 21; Described holding circuit 12, while being used in working order, when receiving lasting sound signal 100, driving switch circuit 13 conductings constantly, after in certain Preset Time, not receiving sound signal 100, driving switch circuit 13 is closed, so that feed circuit 14 can not provide operating voltage for PWM controller 21 by on-off circuit 13, switching power circuit 2 is also because 21 power down of PWM controller quit work.Wherein, described duty is: PWM controller 21 and holding circuit 12 all work on power; Described holding state is: PWM controller 21 and the equal power down of holding circuit 12 quit work.
As Fig. 3 to Fig. 8, it is the particular circuit configurations of a kind of Switching Power Supply efficiency control circuit of the present embodiment.
Described holding circuit 12 comprises chip IC 8, capacitor C 108, capacitor C 62, resistance R 132, resistance R 116, resistance R 117, resistance R 121, triode Q12, capacitor C 38, resistance R 122, resistance R 124, diode D4, triode Q4, resistance R 125, capacitor C 80, capacitor C 56, resistance R 130, diode D12 and resistance R 28; One end of capacitor C 62 is by capacitor C 108 ground connection, one end of capacitor C 62 is for received audio signal 100, the other end of capacitor C 62 is connected with the base stage of triode Q12 by resistance R 116, the other end of capacitor C 62 is by resistance R 132 ground connection, and the other end of capacitor C 62 also is connected with the collector of triode Q12 by resistance R 117; The grounded emitter of triode Q12, the collector of triode Q12 is connected with the feeder ear+VCC of switching power circuit 2 by resistance R 121, and the collector of triode Q12 also is connected with the base stage of triode Q4 by capacitor C 38, resistance R 122 successively; The base stage of triode Q4 also is connected with the feeder ear+VCC of switching power circuit 2 by resistance R 124, resistance R 28 successively, and diode D4 is in parallel with resistance R 124; The emitter of triode Q4 is connected with the feeder ear+VCC of switching power circuit 2 by resistance R 28; The power end VDD of chip IC 8 all is connected with the emitter of triode Q4 with an end of capacitor C 80, the other end ground connection of capacitor C 80; One end of the input end IN of chip IC 8, an end of capacitor C 56 and resistance R 125 all is connected with the collector of triode Q4, the equal ground connection of the other end of the other end of capacitor C 56 and resistance R 125; The output terminal OUT of chip IC 8 is connected with the first input end of on-off circuit 13 by resistance R 130, diode D12 successively; Described civil power comprises input end AC1 and input end AC2.
Described wake-up circuit 11 comprises capacitor C 58, capacitor C 59, diode D6, diode D5, diode D7, diode D8, capacitor C 107, capacitor C 101, stabilivolt ZD4, triode Q13, resistance R 104, capacitor C 112, diode D9, resistance R 109, resistance R 107, capacitor C 61, diode D10, resistance R 108, capacitor C 111, diode D3, resistance R 97, capacitor C 104, triode Q14, resistance R 98, resistance R 103, resistance R 102, resistance R 101, capacitor C 103, resistance R 106 and capacitor C 208, one end of capacitor C 103 is by capacitor C 208 ground connection, and an end of capacitor C 103 is for received audio signal 100, and the other end of capacitor C 103 is connected with the base stage of triode Q14 by resistance R 98, and the other end of capacitor C 103 is also by resistance R 106 ground connection, the grounded emitter of triode Q14, input end AC1 is connected with the emitter of triode Q13 by capacitor C 58, diode D8 successively, and capacitor C 58 is by diode D6 ground connection, input end AC2 is connected with the emitter of triode Q13 by capacitor C 59, diode D7 successively, and capacitor C 59 is by diode D5 ground connection, the end of one end of capacitor C 107, an end of capacitor C 101 and stabilivolt ZD4 all is connected with the emitter of triode Q13, the equal ground connection of the other end of the other end of the other end of capacitor C 107, capacitor C 101 and stabilivolt ZD4, one end of resistance R 104 is connected with the collector of triode Q13, and the other end of resistance R 104 is by capacitor C 112 ground connection, and the other end of resistance R 104 also is connected with the first input end of on-off circuit 13, one end of resistance R 107 is connected with the feeder ear+VCC of switching power circuit 2, and the other end of resistance R 107 is successively by capacitor C 61, capacitor C 111 ground connection, the negative electrode of diode D10 is connected with the other end of electric capacity R104, and the anodic bonding of diode D10 is between capacitor C 61 and capacitor C 111, and resistance R 108 is in parallel with diode D10, the negative electrode of diode D3 is connected with the emitter of triode Q13, the anode of diode D3 is connected with the base stage of triode Q13, the anode of diode D3 also is connected with the collector of triode Q14 by resistance R 97, capacitor C 104 successively, and resistance R 103 is in parallel with diode D3, feeder ear+the VCC of switching power circuit 2 is also successively by diode D9, resistance R 109, resistance R 102, resistance R 101, resistance R 106 ground connection, and the collector of triode Q14 also is connected between resistance R 102 and resistance R 101, the emitter of triode Q13 also is connected between resistance R 109 and resistance R 102, the emitter of triode Q13 also is connected with the second input end of on-off circuit 13.
Described on-off circuit 13 comprises resistance R 92, resistance R 105, capacitor C 106, stabilivolt ZD2, triode Q10, triode Q9, resistance R 111, resistance R 110, photoelectrical coupler IC9, resistance R 114, resistance R 115, resistance R 99, capacitor C 39, resistance R 86, triode Q5, triode Q8, resistance R 112, resistance R 85, stabilivolt ZD5, triode Q7 and resistance R 77; One end of resistance R 92 is connected with the emitter of triode Q13, and the other end of resistance R 92 is connected with the electrode input end of photoelectrical coupler IC9 by resistance R 105, and the cathode output end of photoelectrical coupler IC9 is connected with resistance R 92 by stabilivolt ZD2; One end of capacitor C 106 is connected with the electrode input end of photoelectrical coupler IC9, and the other end of capacitor C 106 is connected with the cathode output end of photoelectrical coupler IC9; The emitter of triode Q10 is connected with the cathode output end of photoelectrical coupler IC9, the base stage of triode Q10 is connected with the collector of triode Q9, the collector of triode Q10 is connected with the emitter of triode Q9 by resistance R 111, the grounded collector of triode Q10; The base stage of triode Q9 is by resistance R 110 ground connection; One end of resistance R 92 is as the second input end of on-off circuit 13, and the base stage of triode Q9 is as the first input end of on-off circuit 13; The emitter output terminal of photoelectrical coupler IC9 is by resistance R 115 ground connection; The collector input end of photoelectrical coupler IC9 is connected with the base stage of triode Q8 by resistance R 114, the collector input end of photoelectrical coupler IC9 also is connected with the base stage of triode Q5 by resistance R 114, resistance R 99, resistance R 112 successively, the emitter of triode Q5 is connected between resistance R 99 and resistance R 112, the collector of triode Q5 is connected with the base stage of triode Q8, the grounded emitter of triode Q8; The base stage of triode Q8 is also by resistance R 86 ground connection, and the collector of triode Q5 is also by capacitor C 39 ground connection; The collector of triode Q7 is connected with the emitter of triode Q5 by resistance R 85, and the emitter of triode Q7 is by resistance R 77 ground connection, and the base stage of triode Q7 is by stabilivolt ZD5 ground connection, and the base stage of triode Q7 also is connected with the emitter of triode Q5; The voltage output end VDD of described feed circuit 14 is connected with the collector of triode Q7 by a resistance R 113, and the emitter of triode Q7 and PWM controller 21(i.e. chip IC 40 in figure) power end VDD be connected.
Described feed circuit comprise resistance R 222, resistance R 123, diode D40, resistance R 119, resistance R 120, resistance R 118, capacitor C 37 and capacitor C 36; Input end AC1 is connected with resistance R 113 by resistance R 22, diode D40, resistance R 119, resistance R 120 successively, and the connected node of resistance R 120 and resistance R 113 is as the voltage output end VDD of feed circuit 14; Input end AC1 also is connected between resistance R 222 and diode D40 by resistance R 123; Resistance R 120 is also respectively by resistance R 118, capacitor C 37, capacitor C 36 ground connection.
Because the switching power circuit 2 of the present embodiment is the normal conventional circuit, do not repeat them here its principle of work.The course of work of the Switching Power Supply efficiency control circuit of the present embodiment is as follows:
1, normal operating conditions
2, enter holding state
While there is no sound signal 100, triode Q4 cut-off, the input signal of the input end IN of chip IC 8 is low level.The timer initiation of control chip IC8 inside now, if input signal is continuously low level over after certain Preset Time (as 60 minutes), the output terminal OUT output low level of chip IC 8, there is no again the driving of sound signal 100 due to wake-up circuit 11, make triode Q9 and triode Q10 cut-off, the diode of photoelectrical coupler IC9 does not have electric current to pass through, photoelectrical coupler IC9 cut-off, thereby make triode Q5 and triode Q8 conducting, triode Q7 cut-off.The supply line of PWM controller 21 is cut off, and feed circuit 14 provide operating voltage can not to PWM controller 21.Voltage drop on capacitor C 43 is after the under-voltage voltage of PWM controller 21, and PWM controller 21 quits work, and switching power circuit 2 is stopped power supply, thereby makes the stand-by power consumption of whole system maintain very little level.
3, wake up
When system during in holding state, the rectification circuit be comprised of capacitor C 58, capacitor C 59, diode D5, diode D6, diode D7, diode D8, capacitor C 107, capacitor C 101 and stabilivolt ZD4 is maintaining a voltage secondary, power supply is provided to wake-up circuit 11.If music signal 100 inputs are arranged, sound signal 100 is amplified through triode Q14, thus turn-on transistor Q13, and then turn-on transistor Q9 and triode Q10.Now the diode of photoelectrical coupler IC9 has electric current to pass through, photoelectrical coupler IC9 conducting, triode Q5 and triode Q8 cut-off, triode Q7 conducting, the power end VDD of PWM controller 21 obtains normal power supply, when the voltage on capacitor C 43 rises to the trigger voltage of PWM controller 21 by resistance R 52, resistance R 65, triode Q7, whole system is recovered normal operation.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and the distortion all should belong to the protection domain of the claims in the present invention within.
Claims (5)
1. Switching Power Supply efficiency control circuit, is characterized in that, comprises switching power circuit, wake-up circuit, holding circuit, on-off circuit and feed circuit with PWM controller, and switching power circuit, wake-up circuit and feed circuit Jun Yu city are electrically connected to;
Described switching power circuit, in working order the time, for holding circuit provides operating voltage;
Described wake-up circuit, for when the holding state, after receiving sound signal, the driving switch circuit turn-on, so that feed circuit provide operating voltage by on-off circuit for the PWM controller;
Described holding circuit, while being used in working order, when receiving lasting sound signal, driving switch circuit turn-on constantly, after in certain Preset Time, not receiving sound signal, the driving switch circuit is closed, so that feed circuit can not provide operating voltage for the PWM controller by on-off circuit;
Wherein,
Described duty is: PWM controller and holding circuit all work on power;
Described holding state is: the equal power down of PWM controller and holding circuit quits work.
2. Switching Power Supply efficiency control circuit as claimed in claim 1, it is characterized in that, described holding circuit comprises chip IC 8, capacitor C 108, capacitor C 62, resistance R 132, resistance R 116, resistance R 117, resistance R 121, triode Q12, capacitor C 38, resistance R 122, resistance R 124, diode D4, triode Q4, resistance R 125, capacitor C 80, capacitor C 56, resistance R 130, diode D12 and resistance R 28; One end of capacitor C 62 is by capacitor C 108 ground connection, one end of capacitor C 62 is for received audio signal, the other end of capacitor C 62 is connected with the base stage of triode Q12 by resistance R 116, the other end of capacitor C 62 is by resistance R 132 ground connection, and the other end of capacitor C 62 also is connected with the collector of triode Q12 by resistance R 117; The grounded emitter of triode Q12, the collector of triode Q12 is connected with the feeder ear+VCC of switching power circuit by resistance R 121, and the collector of triode Q12 also is connected with the base stage of triode Q4 by capacitor C 38, resistance R 122 successively; The base stage of triode Q4 also is connected with the feeder ear+VCC of switching power circuit by resistance R 124, resistance R 28 successively, and diode D4 is in parallel with resistance R 124; The emitter of triode Q4 is connected with the feeder ear+VCC of switching power circuit by resistance R 28; The power end VDD of chip IC 8 all is connected with the emitter of triode Q4 with an end of capacitor C 80, the other end ground connection of capacitor C 80; One end of the input end IN of chip IC 8, an end of capacitor C 56 and resistance R 125 all is connected with the collector of triode Q4, the equal ground connection of the other end of the other end of capacitor C 56 and resistance R 125; The output terminal OUT of chip IC 8 is connected with the first input end of on-off circuit by resistance R 130, diode D12 successively; Described civil power comprises input end AC1 and input end AC2.
3. Switching Power Supply efficiency control circuit as claimed in claim 1, it is characterized in that, described wake-up circuit comprises capacitor C 58, capacitor C 59, diode D6, diode D5, diode D7, diode D8, capacitor C 107, capacitor C 101, stabilivolt ZD4, triode Q13, resistance R 104, capacitor C 112, diode D9, resistance R 109, resistance R 107, capacitor C 61, diode D10, resistance R 108, capacitor C 111, diode D3, resistance R 97, capacitor C 104, triode Q14, resistance R 98, resistance R 103, resistance R 102, resistance R 101, capacitor C 103, resistance R 106 and capacitor C 208, one end of capacitor C 103 is by capacitor C 208 ground connection, and an end of capacitor C 103 is for received audio signal, and the other end of capacitor C 103 is connected with the base stage of triode Q14 by resistance R 98, and the other end of capacitor C 103 is also by resistance R 106 ground connection, the grounded emitter of triode Q14, described civil power comprises input end AC1 and input end AC2, input end AC1 is connected with the emitter of triode Q13 by capacitor C 58, diode D8 successively, and capacitor C 58 is by diode D6 ground connection, input end AC2 is connected with the emitter of triode Q13 by capacitor C 59, diode D7 successively, and capacitor C 59 is by diode D5 ground connection, the end of one end of capacitor C 107, an end of capacitor C 101 and stabilivolt ZD4 all is connected with the emitter of triode Q13, the equal ground connection of the other end of the other end of the other end of capacitor C 107, capacitor C 101 and stabilivolt ZD4, one end of resistance R 104 is connected with the collector of triode Q13, and the other end of resistance R 104 is by capacitor C 112 ground connection, and the other end of resistance R 104 also is connected with the first input end of on-off circuit, one end of resistance R 107 is connected with the feeder ear+VCC of switching power circuit, and the other end of resistance R 107 is successively by capacitor C 61, capacitor C 111 ground connection, the negative electrode of diode D10 is connected with the other end of electric capacity R104, and the anodic bonding of diode D10 is between capacitor C 61 and capacitor C 111, and resistance R 108 is in parallel with diode D10, the negative electrode of diode D3 is connected with the emitter of triode Q13, the anode of diode D3 is connected with the base stage of triode Q13, the anode of diode D3 also is connected with the collector of triode Q14 by resistance R 97, capacitor C 104 successively, and resistance R 103 is in parallel with diode D3, feeder ear+the VCC of switching power circuit is also successively by diode D9, resistance R 109, resistance R 102, resistance R 101, resistance R 106 ground connection, and the collector of triode Q14 also is connected between resistance R 102 and resistance R 101, the emitter of triode Q13 also is connected between resistance R 109 and resistance R 102, the emitter of triode Q13 also is connected with the second input end of on-off circuit.
4. Switching Power Supply efficiency control circuit as claimed in claim 2 or claim 3, it is characterized in that, described on-off circuit comprises resistance R 92, resistance R 105, capacitor C 106, stabilivolt ZD2, triode Q10, triode Q9, resistance R 111, resistance R 110, photoelectrical coupler IC9, resistance R 114, resistance R 115, resistance R 99, capacitor C 39, resistance R 86, triode Q5, triode Q8, resistance R 112, resistance R 85, stabilivolt ZD5, triode Q7 and resistance R 77; One end of resistance R 92 is connected with the emitter of triode Q13, and the other end of resistance R 92 is connected with the electrode input end of photoelectrical coupler IC9 by resistance R 105, and the cathode output end of photoelectrical coupler IC9 is connected with resistance R 92 by stabilivolt ZD2; One end of capacitor C 106 is connected with the electrode input end of photoelectrical coupler IC9, and the other end of capacitor C 106 is connected with the cathode output end of photoelectrical coupler IC9; The emitter of triode Q10 is connected with the cathode output end of photoelectrical coupler IC9, the base stage of triode Q10 is connected with the collector of triode Q9, the collector of triode Q10 is connected with the emitter of triode Q9 by resistance R 111, the grounded collector of triode Q10; The base stage of triode Q9 is by resistance R 110 ground connection; One end of resistance R 92 is as the second input end of on-off circuit, and the base stage of triode Q9 is as the first input end of on-off circuit; The emitter output terminal of photoelectrical coupler IC9 is by resistance R 115 ground connection; The collector input end of photoelectrical coupler IC9 is connected with the base stage of triode Q8 by resistance R 114, the collector input end of photoelectrical coupler IC9 also is connected with the base stage of triode Q5 by resistance R 114, resistance R 99, resistance R 112 successively, the emitter of triode Q5 is connected between resistance R 99 and resistance R 112, the collector of triode Q5 is connected with the base stage of triode Q8, the grounded emitter of triode Q8; The base stage of triode Q8 is also by resistance R 86 ground connection, and the collector of triode Q5 is also by capacitor C 39 ground connection; The collector of triode Q7 is connected with the emitter of triode Q5 by resistance R 85, and the emitter of triode Q7 is by resistance R 77 ground connection, and the base stage of triode Q7 is by stabilivolt ZD5 ground connection, and the base stage of triode Q7 also is connected with the emitter of triode Q5; The voltage output end VDD of described feed circuit is connected with the collector of triode Q7 by a resistance R 113, and the emitter of triode Q7 is connected with the power end VDD of PWM controller.
5. Switching Power Supply efficiency control circuit as claimed in claim 4, is characterized in that, described feed circuit comprise resistance R 222, resistance R 123, diode D40, resistance R 119, resistance R 120, resistance R 118, capacitor C 37 and capacitor C 36; Input end AC1 is connected with resistance R 113 by resistance R 22, diode D40, resistance R 119, resistance R 120 successively, and the connected node of resistance R 120 and resistance R 113 is as the voltage output end VDD of feed circuit; Input end AC1 also is connected between resistance R 222 and diode D40 by resistance R 123; Resistance R 120 is also respectively by resistance R 118, capacitor C 37, capacitor C 36 ground connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310359686.9A CN103425071B (en) | 2013-08-16 | 2013-08-16 | Switching Power Supply energy efficiency control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310359686.9A CN103425071B (en) | 2013-08-16 | 2013-08-16 | Switching Power Supply energy efficiency control circuit |
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| CN103425071A true CN103425071A (en) | 2013-12-04 |
| CN103425071B CN103425071B (en) | 2016-08-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105449991A (en) * | 2015-12-21 | 2016-03-30 | 广东美的厨房电器制造有限公司 | Low-power consumption standby device and electrical device |
| CN106300648A (en) * | 2016-10-21 | 2017-01-04 | 成都前锋电子仪器有限责任公司 | A kind of electric power management circuit |
| CN107456161A (en) * | 2017-08-25 | 2017-12-12 | 江苏美的清洁电器股份有限公司 | Dust catcher and the power control circuit for dust catcher |
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| CN203465544U (en) * | 2013-08-16 | 2014-03-05 | 深圳市茂宏电气有限公司 | Switch power supply energy efficiency control circuit |
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| CN2694667Y (en) * | 2004-03-22 | 2005-04-20 | 深圳创维－Rgb电子有限公司 | Standby circuit and TV set containing the circuit |
| WO2009154985A2 (en) * | 2008-05-27 | 2009-12-23 | Asic Advantage, Inc. | Power supply with standby power |
| CN201414082Y (en) * | 2009-05-05 | 2010-02-24 | 冠捷投资有限公司 | Power supply |
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| CN105449991A (en) * | 2015-12-21 | 2016-03-30 | 广东美的厨房电器制造有限公司 | Low-power consumption standby device and electrical device |
| CN105449991B (en) * | 2015-12-21 | 2018-06-08 | 广东美的厨房电器制造有限公司 | Low-power dissipation standby device and electrical equipment |
| CN106300648A (en) * | 2016-10-21 | 2017-01-04 | 成都前锋电子仪器有限责任公司 | A kind of electric power management circuit |
| CN107456161A (en) * | 2017-08-25 | 2017-12-12 | 江苏美的清洁电器股份有限公司 | Dust catcher and the power control circuit for dust catcher |
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| Publication number | Publication date |
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| CN103425071B (en) | 2016-08-10 |
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