CN205336586U - Lighting circuit and remote controller - Google Patents

Lighting circuit and remote controller Download PDF

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Publication number
CN205336586U
CN205336586U CN201521136322.5U CN201521136322U CN205336586U CN 205336586 U CN205336586 U CN 205336586U CN 201521136322 U CN201521136322 U CN 201521136322U CN 205336586 U CN205336586 U CN 205336586U
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CN
China
Prior art keywords
circuit
resistance
pwm
pwm output
electric capacity
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Expired - Fee Related
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CN201521136322.5U
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Chinese (zh)
Inventor
王坚
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Shenzhen TCL New Technology Co Ltd
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Shenzhen TCL New Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

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  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The utility model discloses a lighting circuit and remote controller, lighting circuit include light, DC power supply circuit, inductance, energy -storage capacitor, PWM output circuit, a switch circuit, the 2nd switch circuit and steady voltage trigger circuit, PWM output circuit includes that power input end, messenger can hold, boost control holds and the output, the first end of inductance, a switch circuit's first end, PWM output circuit's the power input end and the output interconnection of DC power supply circuit, and a switch circuit's second end can be held with PWM output circuit's messenger and be connected, the anodal interconnection of PWM output circuit's output, energy -storage capacitor's energy storage end and light, the second end of PWM output circuit's boost control end, steady voltage trigger circuit's input and inductance interconnects, steady voltage trigger circuit's the 2nd switch circuit ground connection on the output warp, the 2nd switch circuit's output is connected with the negative pole of light. The utility model discloses technical scheme has the characteristics of low power dissipation.

Description

Lighting circuit and remote controller
Technical field
This utility model relates to automatic control technology field, particularly to a kind of lighting circuit and remote controller。
Background technology
Lighting circuit is exactly the illumination when controlling switch Guan Bi, does not illuminate when controlling to switch off。But, traditional lighting circuit, when controlling to switch off, still has smaller electric current to flow through, causes circuit loss between the both positive and negative polarity of illuminating lamp。
Utility model content
Main purpose of the present utility model is to provide a kind of lighting circuit, it is intended to reduce the power consumption of this lighting circuit。
For achieving the above object, the lighting circuit that the utility model proposes includes illuminating lamp, DC power supply circuit, inductance, storage capacitor, PWM output circuit, the first on-off circuit, second switch circuit and voltage stabilizing and triggers circuit;Described PWM output circuit includes power input, Enable Pin, boosting rectifier control end and outfan, first end of described inductance, the first end of described first on-off circuit, described PWM output circuit power input be connected with the outfan of described DC power supply circuit respectively, the second end of described first on-off circuit is connected with the Enable Pin of described PWM output circuit;The outfan of described PWM output circuit, the energy storage end of described storage capacitor and the positive pole of described illuminating lamp interconnect, and the boosting rectifier control end of described PWM output circuit and described voltage stabilizing trigger the input of circuit and the second end interconnection of described inductance;Described voltage stabilizing triggers the outfan of circuit and is connected with the triggering end of described second switch circuit, and the input end grounding of described second switch circuit, the outfan of described second switch circuit is connected with the negative pole of described illuminating lamp;
Wherein, described voltage stabilizing triggers circuit, for when described first on-off circuit disconnects, blocking the current path between the both positive and negative polarity of described illuminating lamp;Described PWM output circuit, produces induced voltage for output pwm signal to control described inductance, causes described voltage stabilizing to trigger the current path that circuit stops blocking between the both positive and negative polarity of described illuminating lamp。
Preferably, described voltage stabilizing triggers circuit and includes Zener diode, and the negative electrode of described Zener diode is input, and anode is outfan。
Preferably, described first on-off circuit includes electrical switch and the first resistance, first end that first end is described on-off circuit of described electrical switch, the Enable Pin interconnection of the second end of described electrical switch and the first end of described first resistance, described PWM output circuit, the second end ground connection of described first resistance。
Preferably, described second switch circuit includes the second resistance, the 3rd resistance, the second electric capacity, the 4th electric capacity, audion, metal-oxide-semiconductor;First end of described second resistance is the triggering end of described second switch circuit, second end of described second resistance is connected with the base stage of described audion, the grounded emitter of described audion, the colelctor electrode of described audion is connected with described second end of the 4th electric capacity and the source electrode of described metal-oxide-semiconductor respectively;The input that first end of described 4th electric capacity triggers circuit with described voltage stabilizing is connected, and the grid of described metal-oxide-semiconductor is connected with the first end of described 3rd resistance, the second end ground connection of described 3rd resistance;The drain electrode of described metal-oxide-semiconductor is connected with the negative pole of described second electric capacity, the outfan that link node is described second switch circuit of described metal-oxide-semiconductor and described second electric capacity, the input of the just extremely described second switch circuit of described second electric capacity。
Preferably, described PWM output circuit includes PWM pio chip, the 4th resistance, the 5th resistance and the first diode;The input of described PWM pio chip is the input of described PWM output circuit, the Enable Pin of described PWM pio chip is the Enable Pin of described PWM output circuit, the feedback end of described PWM pio chip is connected with the first end of described 4th resistance and the first end of described 5th resistance respectively, the earth terminal of described PWM pio chip and the second end ground connection of described 5th resistance;The outfan of described PWM pio chip is connected with the anode of described first diode, and the negative electrode of described first diode is connected with the second end of described 4th resistance;The boosting rectifier control end that link node is described PWM output circuit of described PWM pio chip and described first diode, the outfan that link node is described PWM output circuit of described first diode and described 4th resistance。
Preferably, described illuminating lamp is LED。
Preferably, described DC power supply circuit includes the first battery, the second battery and the 3rd electric capacity, the positive pole of described first battery is connected with the first end of described 3rd electric capacity, the positive output end that link node is described DC power supply circuit of described 3rd electric capacity and described first battery;The negative pole of described first battery is connected with the positive pole of described second battery, and the negative pole of described second battery is connected with the second end of described 3rd electric capacity, the negative output terminal that link node is described DC power supply circuit of described 3rd electric capacity and described second battery。
This utility model also proposes a kind of remote controller, described remote controller includes lighting circuit as above, wherein, described lighting circuit includes illuminating lamp, DC power supply circuit, inductance, storage capacitor, PWM output circuit, the first on-off circuit, second switch circuit and voltage stabilizing triggering circuit;Described PWM output circuit includes power input, Enable Pin boosting rectifier control end and outfan, first end of described inductance, the first end of described first on-off circuit, described PWM output circuit power input be connected with the outfan of described DC power supply circuit respectively, the second end of described first on-off circuit is connected with the Enable Pin of described PWM output circuit;The outfan of described PWM output circuit, the energy storage end of described storage capacitor and the positive pole of described illuminating lamp interconnect, and the boosting rectifier control end of described PWM output circuit and described voltage stabilizing trigger the input of circuit and the second end interconnection of described inductance;Described voltage stabilizing triggers the outfan of circuit and is connected with the triggering end of described second switch circuit, and the input end grounding of described second switch circuit, the outfan of described second switch circuit is connected with the negative pole of described illuminating lamp;Described voltage stabilizing triggers circuit, for when described first on-off circuit disconnects, blocking the current path between the both positive and negative polarity of described illuminating lamp;Described PWM output circuit, produces induced voltage for output pwm signal to control described inductance, sufficiently large with the second end output voltage causing described inductance, causes described voltage stabilizing to trigger the current path that circuit stops blocking between the both positive and negative polarity of described illuminating lamp。
Technical solutions of the utility model set up voltage stabilizing triggering circuit by adopting in lighting circuit, are controlled the break-make of PWM output circuit by the first on-off circuit。When the first on-off circuit disconnects, PWM output circuit does not work, and voltage stabilizing triggers circuit and can not be triggered so that second switch circuit turns off, and causes that the negative pole of illuminating lamp is without input, cannot form current path between the both positive and negative polarity of illuminating lamp, and illuminating lamp goes out。And when the first on-off circuit Guan Bi, PWM output circuit works, voltage stabilizing triggers circuit and is triggered so that second switch circuit turn-on, and the negative pole of illuminator obtains input, forms current path between the both positive and negative polarity of illuminating lamp, and illuminating lamp is bright。Owing to when the first on-off circuit disconnects, between illuminator is positive and negative, no current flows through, and naturally also will not produce thermal losses。Accordingly, with respect to prior art, technical solutions of the utility model have feature low in energy consumption。
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to the structure according to these accompanying drawings obtains other accompanying drawing。
Fig. 1 is the high-level schematic functional block diagram of this utility model lighting circuit one embodiment。
Drawing reference numeral illustrates:
Label Title Label Title
10 DC power supply circuit C1 Storage capacitor
20 PWM output circuit C2 Second electric capacity
30 Illuminating lamp C3 3rd electric capacity
L Inductance C4 4th electric capacity
K On-off circuit R1 First resistance
U PWM pio chip R2 Second resistance
Q1 Audion R3 3rd resistance
Q2 Metal-oxide-semiconductor R4 4th resistance
D1 First diode R5 5th resistance
Df Zener diode R6 6th resistance
40 First on-off circuit 50 Voltage stabilizing triggers circuit
60 Second switch circuit
The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing。
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments。Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection。
This utility model relates to the description of " first ", " second " etc. only for descriptive purposes, and it is not intended that indicate or imply its relative importance or the implicit quantity indicating indicated technical characteristic。Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature。Additionally; technical scheme between each embodiment can be combined with each other; but must be based on those of ordinary skill in the art are capable of; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme is absent from, also not this utility model require protection domain within。
The utility model proposes a kind of lighting circuit。
With reference to the electrical block diagram that Fig. 1, Fig. 1 are this utility model lighting circuit one embodiment。
As it is shown in figure 1, in this utility model embodiment, this lighting circuit includes illuminating lamp 30, DC power supply circuit 10, inductance L, storage capacitor C1, PWM output circuit the 20, first on-off circuit 40, second switch circuit 60 and voltage stabilizing and triggers circuit 50;Described PWM output circuit 20 includes power input, Enable Pin, boosting rectifier control end and outfan, first end of described inductance L, the first end of described first on-off circuit 40, described PWM output circuit 20 power input be connected with the outfan of described DC power supply circuit 10 respectively, the second end of described first on-off circuit 40 is connected with the Enable Pin of described PWM output circuit 20;The outfan of described PWM output circuit 20, the energy storage end of described storage capacitor C1 and the positive pole of described illuminating lamp 30 interconnect, and the boosting rectifier control end of described PWM output circuit 20 and described voltage stabilizing trigger the input of circuit 50 and the second end interconnection of described inductance L;Described voltage stabilizing triggers the outfan of circuit 50 and is connected with the triggering end of described second switch circuit 60, and the input end grounding GND1 of described second switch circuit 60, the outfan of described second switch circuit 60 is connected with the negative pole of described illuminating lamp 30;Wherein, described voltage stabilizing triggers circuit 50, for when described first on-off circuit 40 disconnects, blocking the current path between the both positive and negative polarity of described illuminating lamp 30;Described PWM output circuit 20, induced voltage is produced to control described inductance L for output pwm signal, sufficiently large with the second end output voltage of causing described inductance L, cause described voltage stabilizing to trigger the current path that circuit 50 stops blocking between the both positive and negative polarity of described illuminating lamp。
When described first on-off circuit 40 is off, described PWM output circuit 20 does not work, the voltage swing that the output voltage of second end of described inductance L exports with the positive output end of described DC power supply circuit 10 is identical, and the positive pole of described illuminating lamp 30 obtains and the described DC power supply circuit 10 an equal amount of forward voltage of output voltage。Meanwhile, owing to the undertension of described DC power supply circuit 10 output is so that described voltage stabilizing triggers circuit 50 and triggers, described second switch circuit 60 ends, and the negative pole of described illuminating lamp 30 is without input voltage, between the both positive and negative polarity of described illuminating lamp 30, no current flows through, and described illumination 30 lamp goes out。
When described first on-off circuit 40 is in closure state, described PWM output circuit 20 works, the voltage that the second outfan output voltage of described inductance L exports more than the positive output end of described DC power supply circuit 10, the positive pole of described illuminating lamp 30 obtains the forward voltage more than described DC power supply circuit 10 output voltage。Meanwhile, owing to the voltage of second end of described inductance L is sufficiently large, described voltage stabilizing triggers circuit 50 and triggers, described second switch circuit 60 turns on, the negative pole of described illuminating lamp 30 obtains negative voltage input, has electric current to flow through between the both positive and negative polarity of described illuminating lamp 30, and described illuminating lamp 30 is bright。
Technical solutions of the utility model set up voltage stabilizing triggering circuit 50 by adopting in lighting circuit, are controlled the break-make of PWM output circuit 20 by the first on-off circuit 40。When the first on-off circuit 40 disconnects, PWM output circuit 20 does not work, and voltage stabilizing triggers circuit 50 and can not be triggered, second switch circuit 60 is turned off, causing that the negative pole of illuminating lamp 30 is without input, cannot form current path between the both positive and negative polarity of illuminating lamp 30, illuminating lamp 30 goes out。And when the first on-off circuit 40 closes, PWM output circuit 20 works, voltage stabilizing triggers circuit 50 and is triggered so that second switch circuit 60 turns on, and the negative pole of illuminating lamp 30 obtains input, forms current path between the both positive and negative polarity of illuminating lamp 30, and illuminating lamp 30 is bright。Owing to when the first on-off circuit 40 disconnects, between illuminating lamp 30 is positive and negative, no current flows through, and naturally also will not produce thermal losses。Accordingly, with respect to prior art, technical solutions of the utility model have feature low in energy consumption。
Preferably, described voltage stabilizing triggers circuit 50 and includes Zener diode Df, and the negative electrode of described Zener diode Df is input, and anode is outfan。
Described first on-off circuit 40 includes electrical switch K and the first resistance R1, first end of described electrical switch K is the first end of described first on-off circuit 40, the Enable Pin interconnection of second end of described electrical switch K and first end of described first resistance R1, described PWM output circuit 20, the second end GND1 ground connection of described first resistance R1。It is noted that described electrical switch K can be light-operated switch can also be audio-switch, do not limit herein。In the present embodiment, described electrical switch K is key switch。
Described second switch circuit 60 includes the second resistance R2, the 3rd resistance R3, the second electric capacity C2, the 4th electric capacity C4, audion Q1, metal-oxide-semiconductor Q2;The triggering end that first end is described second switch circuit 60 of described second resistance R2, second end of described second resistance R2 is connected with the base stage of described audion Q1, the grounded emitter GND2 of described audion Q1, the colelctor electrode of described audion Q1 is connected with second end of described 4th electric capacity C4 and the source electrode of described metal-oxide-semiconductor Q2 respectively;The input that first end of described 4th electric capacity C4 triggers circuit 50 with described voltage stabilizing is connected, and the grid of described metal-oxide-semiconductor Q2 is connected with first end of described 3rd resistance R3, the second end ground connection GND1 of described 3rd resistance R3;The drain electrode of described metal-oxide-semiconductor Q2 is connected with the negative pole of described second electric capacity C2, the outfan that link node is described second switch circuit 60 of described metal-oxide-semiconductor Q2 and described second electric capacity C2, the input of the just extremely described second switch circuit 60 of described second electric capacity C2。It should be noted that in the present embodiment, described audion Q1 is NPN type triode, described metal-oxide-semiconductor Q2 is enhancement mode NMOS tube。
Described PWM output circuit 20 includes PWM pio chip U, the 4th resistance R4, the 5th resistance R5 and the first diode D1;The input that input IN is described PWM output circuit 20 of described PWM pio chip U, the Enable Pin that Enable Pin EN is described PWM output circuit 20 of described PWM pio chip U, the feedback end FB of described PWM pio chip U is connected with first end of described 4th resistance R4 and first end of described 5th resistance R5 respectively, the second end ground connection GND1 of the earth terminal GND and described 5th resistance R5 of described PWM pio chip U;The anode of the boosting rectifier control end SW of described PWM pio chip U and described first diode D1 is connected, and the negative electrode of described first diode D1 is connected with second end of described 4th resistance R4;The boosting rectifier control end that link node is described PWM output circuit 20 of described PWM pio chip U and described first diode D1, the outfan that link node is described PWM output circuit 20 of described first diode D1 and described 4th resistance R4。
Described DC power supply circuit 10 includes the first battery, the second battery and the 3rd electric capacity C3, the positive pole of described first battery is connected with first end of described 3rd electric capacity C3, the positive output end that link node is described DC power supply circuit 10 of described 3rd electric capacity C3 and described first battery;The negative pole of described first battery is connected with the positive pole of described second battery, and the negative pole of described second battery is connected with second end of described 3rd electric capacity C3, the negative output terminal that link node is described DC power supply circuit 10 of described 3rd electric capacity C3 and described second battery。
When the described lighting circuit illumination that need not use, described key switch K is off, the Enable Pin EN input low level signal of described PWM pio chip U, described PWM pio chip U does not work, the voltage swing that the magnitude of voltage of the boosting rectifier control end SW of described PWM pio chip U exports with the positive pole of described first battery is identical, due to described inductance L second end output undertension to puncture described Zener diode Df, described 4th electric capacity C4 charging, described second resistance R2 two ends no current flows through, described audion Q1 ends, described metal-oxide-semiconductor Q2 ends, the negative pole of described second electric capacity C2 exports without negative voltage, the negative pole of described illuminating lamp 30 inputs without negative voltage, current path cannot be formed between positive pole and the negative pole of described illuminating lamp 30, described illuminating lamp 30 goes out。
When needs use described lighting circuit to illuminate, press described key switch K, so that the Enable Pin EN input high level signal of described PWM pio chip U, described PWM pio chip U works, described inductance L produces induced voltage, the output voltage of second end of described inductance L is output voltage and the described inductance L induced voltage sum produced of described DC power supply circuit 10, it is enough to puncture described Zener diode Df, described Zener diode Df is breakdown, described second resistance R2 two ends have electric current to flow through, described 4th electric capacity C4 electric discharge, described audion Q1 turns on, described metal-oxide-semiconductor Q2 turns on, the negative pole output negative voltage of described second electric capacity C2, the negative pole of described illuminating lamp 30 obtains negative voltage input, current path is formed between positive pole and the negative pole of described illuminating lamp 30, described illuminating lamp 30 is bright。It is noted that in the process of described PWM pio chip U work, its feedback end FB also can Gather and input to the voltage swing of positive pole of described illuminating lamp 30, abnormal to prevent the voltage of the positive pole because of input to described illuminating lamp 30 from occurring。
It is noted that described illuminating lamp 30 can be daylight lamp, it is also possible to be electric filament lamp etc. other may be used for the lamp of illumination, do not limit herein。In the present embodiment, described illuminating lamp is the LED (LED as shown in Figure 1) of 3 series connection。Certainly, in order to limit the size of current flowing through described LED, this illuminator is additionally provided with the 6th resistance R6 between connection and positive pole and the positive pole of described storage capacitor C1 of described LED。
This utility model also proposes a kind of remote controller (not shown go out), and this remote controller includes lighting circuit as above。When user prepares in bed, it is possible to described remote controller is placed on from self nearby。If intermediate demand is turned on light, only need to stretch out one's hand and take remote controller, and press described key switch and can realize, very easy。Owing to technical solutions of the utility model set up lighting circuit by adopting in remote controller, it is possible to make remote controller increase a flashlight function, it is possible to facilitate user to use remote controller to illuminate after turning off the light night, eliminate the trouble turned on light of getting up。Therefore, this remote control appliance has the feature of feature richness
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every under inventive concept of the present utility model; utilize the equivalent structure transformation that this utility model description and accompanying drawing content are made, or directly/be indirectly used in other relevant technical fields and be included in scope of patent protection of the present utility model。

Claims (8)

1. a lighting circuit, it is characterised in that described lighting circuit includes illuminating lamp, DC power supply circuit, inductance, storage capacitor, PWM output circuit, the first on-off circuit, second switch circuit and voltage stabilizing and triggers circuit;Described PWM output circuit includes power input, Enable Pin, boosting rectifier control end and outfan, first end of described inductance, the first end of described first on-off circuit, described PWM output circuit power input be connected with the outfan of described DC power supply circuit respectively, the second end of described first on-off circuit is connected with the Enable Pin of described PWM output circuit;The outfan of described PWM output circuit, the energy storage end of described storage capacitor and the positive pole of described illuminating lamp interconnect, and the boosting rectifier control end of described PWM output circuit and described voltage stabilizing trigger the input of circuit and the second end interconnection of described inductance;Described voltage stabilizing triggers the outfan of circuit and is connected with the triggering end of described second switch circuit, and the input end grounding of described second switch circuit, the outfan of described second switch circuit is connected with the negative pole of described illuminating lamp;Wherein,
Described voltage stabilizing triggers circuit, for when described first on-off circuit disconnects, blocking the current path between the both positive and negative polarity of described illuminating lamp;
Described PWM output circuit, produces induced voltage for output pwm signal to control described inductance, causes described voltage stabilizing to trigger the current path that circuit stops blocking between the both positive and negative polarity of described illuminating lamp。
2. lighting circuit as claimed in claim 1, it is characterised in that described voltage stabilizing triggers circuit and includes Zener diode, and the negative electrode of described Zener diode is input, and anode is outfan。
3. lighting circuit as claimed in claim 1, it is characterized in that, described first on-off circuit includes electrical switch and the first resistance, first end that first end is described on-off circuit of described electrical switch, the Enable Pin interconnection of the second end of described electrical switch and the first end of described first resistance, described PWM output circuit, the second end ground connection of described first resistance。
4. lighting circuit as claimed in claim 1, it is characterised in that described second switch circuit includes the second resistance, the 3rd resistance, the second electric capacity, the 4th electric capacity, audion, metal-oxide-semiconductor;First end of described second resistance is the triggering end of described second switch circuit, second end of described second resistance is connected with the base stage of described audion, the grounded emitter of described audion, the colelctor electrode of described audion is connected with described second end of the 4th electric capacity and the source electrode of described metal-oxide-semiconductor respectively;The input that first end of described 4th electric capacity triggers circuit with described voltage stabilizing is connected, and the grid of described metal-oxide-semiconductor is connected with the first end of described 3rd resistance, the second end ground connection of described 3rd resistance;The drain electrode of described metal-oxide-semiconductor is connected with the negative pole of described second electric capacity, the outfan that link node is described second switch circuit of described metal-oxide-semiconductor and described second electric capacity, the input of the just extremely described second switch circuit of described second electric capacity。
5. lighting circuit as claimed in claim 1, it is characterised in that described PWM output circuit includes PWM pio chip, the 4th resistance, the 5th resistance and the first diode;The input of described PWM pio chip is the input of described PWM output circuit, the Enable Pin of described PWM pio chip is the Enable Pin of described PWM output circuit, the feedback end of described PWM pio chip is connected with the first end of described 4th resistance and the first end of described 5th resistance respectively, the earth terminal of described PWM pio chip and the second end ground connection of described 5th resistance;The outfan of described PWM pio chip is connected with the anode of described first diode, and the negative electrode of described first diode is connected with the second end of described 4th resistance;The boosting rectifier control end that link node is described PWM output circuit of described PWM pio chip and described first diode, the outfan that link node is described PWM output circuit of described first diode and described 4th resistance。
6. lighting circuit as claimed in claim 1, it is characterised in that described illuminating lamp is LED。
7. lighting circuit as claimed in claim 1, it is characterized in that, described DC power supply circuit includes the first battery, the second battery and the 3rd electric capacity, the positive pole of described first battery is connected with the first end of described 3rd electric capacity, the positive output end that link node is described DC power supply circuit of described 3rd electric capacity and described first battery;The negative pole of described first battery is connected with the positive pole of described second battery, and the negative pole of described second battery is connected with the second end of described 3rd electric capacity, the negative output terminal that link node is described DC power supply circuit of described 3rd electric capacity and described second battery。
8. a remote controller, it is characterised in that include the lighting circuit as described in any one of claim 1 to 7。
CN201521136322.5U 2015-12-30 2015-12-30 Lighting circuit and remote controller Expired - Fee Related CN205336586U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107171549A (en) * 2017-06-21 2017-09-15 信利半导体有限公司 A kind of DC voltage booster circuit
CN116505645A (en) * 2023-06-21 2023-07-28 灿芯半导体(成都)有限公司 Escape circuit for coping with built-in power failure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107171549A (en) * 2017-06-21 2017-09-15 信利半导体有限公司 A kind of DC voltage booster circuit
CN116505645A (en) * 2023-06-21 2023-07-28 灿芯半导体(成都)有限公司 Escape circuit for coping with built-in power failure
CN116505645B (en) * 2023-06-21 2023-09-12 灿芯半导体(成都)有限公司 Escape circuit for coping with built-in power failure

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