CN209119877U - A kind of list firewire power supply circuit - Google Patents
A kind of list firewire power supply circuit Download PDFInfo
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- CN209119877U CN209119877U CN201821748288.0U CN201821748288U CN209119877U CN 209119877 U CN209119877 U CN 209119877U CN 201821748288 U CN201821748288 U CN 201821748288U CN 209119877 U CN209119877 U CN 209119877U
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Abstract
The utility model discloses a kind of single firewire power supply circuits, including first input end, second input terminal, first switch and on-state charging circuit, first input end is connected to on-state charging circuit by first switch, second input terminal is another input terminal of on-state charging circuit, the output of on-state charging circuit is connected to output end, when first switch conducting, first input end gives output power supply by on-state charging circuit, when output end is lower than first voltage threshold value relative to the voltage on reference ground, output is in charged state, when output end voltage rises to second voltage threshold value, output is in non-charged state, when output end voltage is reduced to first voltage threshold value, then return to charged state；In charged state, first switch tube shutdown, first input end is charged by the first one-way conduction element to output end；In non-charged state, first switch tube is fully on.
Description
Technical field
The utility model relates to power electronics fields, and in particular to a kind of list firewire power supply circuit.
Background technique
Home wiring control switch panel can integrate various sensor devices, to various equipment or illuminator provide detection and
The input interface of control, these sensor devices needs supply power for, and only one inside traditional wall mechanical switch magazine
Root firewire is powered just into the bottleneck of limitation traditional equipment auto upgrading for the switch on wall in zero curve circuit, how to be mentioned
For stable and safety single firewire power supply plan at key technical problems.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of single firewire power supply circuits, to solve the prior art
In be difficult to stablize the problem of being safely powered using a firewire.
The technical solution of the utility model is to provide a kind of single firewire power supply circuit, including first input end, second
Input terminal, first switch and on-state charging circuit, the first input end are connected to the on-state by the first switch and fill
The first input end of circuit, second input terminal are the second input terminal of the on-state charging circuit, the on-state charging
The output of circuit is connected to output end, and when first switch conducting, the first input end is given by the on-state charging circuit
Output power supply,
The on-state charging circuit includes first switch tube, the first one-way conduction element, and the of the on-state charging circuit
One input terminal is connected to by the first switch tube with reference to ground, and the first input end of the on-state charging circuit passes through described the
One one-way conduction element is connected to output end, and second input terminal is connected to reference to ground,
When the output end is lower than first voltage threshold value relative to the voltage on reference ground, the output is in charging shape
State, when the output end voltage rises to second voltage threshold value, the output is in non-charged state, when the output end
Voltage drop then returns to charged state as low as the first voltage threshold value；
In the charged state, the first switch tube shutdown, the first input end is unidirectionally led by described first
Logical element charges to the output end；
In the non-charged state, the first switch tube is fully on；
The first one-way conduction element is diode or switching tube.
As optional, the on-state charging circuit further includes second switch and the second one-way conduction element, and described second
Input terminal is connected to the reference ground by the second switch, and second input terminal passes through the second one-way conduction member
Part is connected to the output end；
In the charged state, the second switch shutdown, second input terminal is unidirectionally led by described second
Logical element charges to the output end；
In the non-charged state, the second switch is fully on；
The second one-way conduction element is diode or switching tube.
As optional, the first switch is mechanical switch or electronic switch.
As optional, the electronic switch is relay perhaps bidirectional thyristor or be rectifier bridge and unidirectional thyristor
The circuit that parallel connection is formed.
It further include microprocessor (MCU) and ON-OFF control circuit as optional, the microprocessor receives switching signal,
The turn-on and turn-off of the first switch are controlled by the ON-OFF control circuit according to the switching signal.
As optional, the microprocessor is that wireless control microprocessor or touch control microprocessor or infrared acoustic control are micro-
Processor.
It further include off-state charging circuit as optional, when first switch shutdown, the first input end passes through institute
Off-state charging circuit is stated to charge to the output end.
As optional, the off-state charging circuit is circuit of reversed excitation or is BUCK reduction voltage circuit.
The present invention also provides a kind of single firewire power supply circuit, including first input end, the second input terminal, first switch, the
One one-way conduction element and linear voltage-stabilizing circuit, the first input end are connected to second input by the first switch
End, the first one-way conduction element and linear voltage-stabilizing circuit series connection, the first input end are unidirectional by described first
Breakover element and the linear voltage-stabilizing circuit are connected to output end, and when first switch shutdown, the first input end passes through institute
It states the first one-way conduction element and the linear voltage-stabilizing circuit and gives output power supply.
As optional, the first switch is mechanical switch or electronic switch.
Using the circuit structure of the utility model, compared with prior art, have the advantage that the utility model being capable of benefit
Stabilization is carried out with a firewire safely to power, and for electrician's class switch panel products application, substantially increases safety and can
By property.
Detailed description of the invention
Fig. 1 is the utility model list firewire half-wave power supply circuit schematic diagram；
Fig. 2 is that the utility model on-state charging circuit uses all-wave power supply circuit schematic diagram；
Fig. 3 is a kind of embodiment of the utility model list firewire power supply circuit；
Fig. 4 is the schematic diagram that the utility model first switch K01 is relay；
Fig. 5 is the utility model first switch K01 when being relay, a kind of implementation of ON-OFF control circuit 500；
Fig. 6 is the schematic diagram that the utility model first switch K01 is bidirectional thyristor；
Fig. 7 is the utility model first switch K01 when being bidirectional thyristor, a kind of realization side of ON-OFF control circuit 500
Formula；
Fig. 8 is the schematic diagram for the parallel circuit that the utility model first switch K01 is rectifier bridge and unidirectional thyristor；
Fig. 9 is the another embodiment of the utility model list firewire power supply circuit；
Figure 10 is another embodiment of the utility model list firewire power supply circuit.
Specific embodiment
It is described in detail below in conjunction with preferred embodiment of the attached drawing to the utility model, but the utility model is not merely
It is limited to these embodiments.The utility model covers any substitution made in the spirit and scope of the utility model, modification, equivalent
Method and scheme.
In order to make the public have thorough understanding to the utility model, in following the preferred embodiment in the utility model specifically
Concrete details is illustrated, and that this can also be understood completely is practical new for description without these details for a person skilled in the art
Type.
The utility model is more specifically described by way of example referring to attached drawing in the following passage.It should be noted that attached drawing
It is all made of more simplified form and uses non-accurate ratio, only to facilitate, lucidly aid in illustrating the utility model
The purpose of embodiment.
The utility model provides a kind of single firewire power supply circuit.It please refers to shown in Fig. 1, the one end for exchanging input passes through load
Circuit and single firewire power supply circuit circuit connection to be formed of connecting arrive the other end for exchanging and inputting.Load circuit is usually to illuminate to bear
It carries, loadtype includes incandescent lamp, power saving fluorescent lamp, LED illumination etc..The power bracket of load circuit is differed from 3W to 1kW.
Please continue to refer to shown in Fig. 1, single firewire power supply circuit includes first input end L1, the second input terminal L2, first opens
It closes K01 and on-state charging circuit 200, first input end L1 is connected to the first of on-state charging circuit 200 by first switch K01
Input terminal, the second input terminal L2 are the second input terminal of on-state charging circuit 200, and the output of on-state charging circuit 200 is connected to
Output end VO, when first switch K01 conducting, the first input end L1 gives output power supply by on-state charging circuit 200, leads to
State charging circuit 200 includes first switch tube Q01, the first one-way conduction element D01, and the first of the on-state charging circuit 200
Input terminal is connected to by the first switch tube Q01 with reference to ground, and the first input end of the on-state charging circuit 200 passes through institute
It states the first one-way conduction element D01 and is connected to output end, the second input terminal L2 is connected to reference to ground, as the output end VO
Voltage relative to reference ground is lower than first voltage threshold value Vth-onWhen, the output is in charged state, when the output end
Voltage rises to second voltage threshold value Vth-offWhen, the output is in non-charged state, when the output end voltage is reduced to
The first voltage threshold value Vth-on, then charged state is returned to；In the charged state, the first switch tube Q01 shutdown, institute
It states first input end L1 and is charged by the first one-way conduction element D01 to the output end；In the non-charged state,
The first switch tube Q01 is fully on；First one-way conduction element is diode or switching tube.
In half-wave power supply mode, only the time of half power frequency period can charge to capacitor CS, in order to improve output
Power bracket, on-state charging circuit can use all-wave power supply mode.It please refers to shown in Fig. 2, the on-state charging circuit 200 is also
Ginseng is connected to by second switch Q02 including second switch Q02 and the second one-way conduction element D02, the second input terminal L2
Ground is examined, the second input terminal L2 is connected to the output end by the second one-way conduction element D02；In charged state, described
Two switching tube Q02 shutdown, the second input terminal L2 are charged by the second one-way conduction element D02 to the output end；Non-
When charged state, the second switch Q02 is fully on；Second one-way conduction element is diode or switching tube.
In one embodiment, first switch K01 is mechanical switch or electronic switch.When switch K01 is connected, load electricity
Road work, when switch K01 is turned off, load circuit does not work.
When switch K01 is mechanical switch, control whether load circuit works by Operation switch K01 at hand.
It please refers to shown in Fig. 3, further includes microprocessor (MCU) 400 and switch control when switch K01 is electronic switch
Circuit 500, microprocessor 400 receive switching signal, control described first by ON-OFF control circuit 500 according to switching signal and open
Close the turn-on and turn-off of K01.
It please refers to shown in Fig. 4, electronic switch can be relay.
It please refers to shown in Fig. 5, when electronic switch is relay, a kind of implementation of ON-OFF control circuit 500.Relay
The first control terminal be connected to supply voltage VD.ON-OFF control circuit 500 includes NPN triode Q510, the collection of triode Q510
Electrode is connected to the second control terminal of relay, and the emitter of triode Q510 is connected to reference to ground, the base stage of triode Q510
It is connected to microprocessor 400.When the switching signal that microprocessor receives characterizes switch conduction, the output of microprocessor 400
Voltage is height, and triode Q510 conducting, voltage is supply voltage VD between the first control terminal and the second control terminal of relay, after
Electric appliance conducting；When switching signal that microprocessor receives characterizes switch OFF, the output voltage of microprocessor 400 be it is low,
Triode Q510 shutdown, voltage is zero between the first control terminal and the second control terminal of relay, relay shutdown.
It please refers to shown in Fig. 6, electronic switch can be bidirectional thyristor.
It please refers to shown in Fig. 7, when electronic switch is bidirectional thyristor, a kind of implementation of ON-OFF control circuit 500.It opens
Closing control circuit 500 includes NPN triode Q510, and the collector of triode Q510 is connected to supply voltage VD, triode Q510
Emitter be connected to the control terminal of bidirectional thyristor, the base stage of triode Q510 is connected to microprocessor 400.Work as microprocessor
When the switching signal characterization switch conduction received, the output voltage of microprocessor 400 is height, and triode Q510 conducting is two-way
Thyristor control terminal voltage is supply voltage VD, bidirectional thyristor conducting；When the switching signal characterization that microprocessor receives is opened
When shutdown, the output voltage of microprocessor 400 is low, triode Q510 shutdown, bidirectional thyristor shutdown.
It please refers to shown in Fig. 8, the circuit that electronic switch can be rectifier bridge and unidirectional thyristor parallel connection is formed.Switch control
The implementation of circuit 500 can be the implementation in Fig. 7.
In one embodiment, microprocessor 400 is wireless control microprocessor or touch control microprocessor or infrared
Acoustic control microprocessor.
It please refers to shown in Fig. 9, further includes off-state charging circuit 300, when first switch K01 shutdown, described first
Input terminal L1 is charged by the off-state charging circuit 300 to the output end.
The off-state charging circuit is circuit of reversed excitation or is BUCK reduction voltage circuit.
It please refers to shown in Figure 10, the present invention also provides a kind of single firewire power supply circuit, including it is first input end L1, second defeated
Enter to hold L2, first switch K01, the first one-way conduction element D01 and linear voltage-stabilizing circuit LDO200, the first input end L1 logical
It crosses the first switch K01 and is connected to the second input terminal L2, the first one-way conduction element D01 and the linear voltage stabilization
Circuit 200 is connected, and the first input end L1 passes through the first one-way conduction element D01 and the linear voltage-stabilizing circuit 200
It is connected to output end, when first switch D01 shutdown, the first input end L1 passes through the first one-way conduction element D01
Output power supply is given with the linear voltage-stabilizing circuit 200.
In one embodiment, first switch K01 is mechanical switch or electronic switch.When switch K01 is connected, load electricity
Road work, when switch K01 is turned off, load circuit does not work.
When switch K01 is mechanical switch, control whether load circuit works by Operation switch K01 at hand.
It further include microprocessor (MCU) 400 and ON-OFF control circuit 500, micro process when switch K01 is electronic switch
Device 400 receive switching signal, according to switching signal by ON-OFF control circuit 500 control the first switch K01 conducting and
Shutdown.
Electronic switch can be relay.When electronic switch is relay, the first control terminal of relay is connected to confession
Piezoelectric voltage VD.ON-OFF control circuit 500 includes NPN triode Q510, and the collector of triode Q510 is connected to the of relay
Two control terminals, the emitter of triode Q510 are connected to reference to ground, and the base stage of triode Q510 is connected to microprocessor 400.When
When the switching signal that microprocessor receives characterizes switch conduction, the output voltage of microprocessor 400 is height, and triode Q510 is led
Logical, voltage is supply voltage VD, relay conducting between the first control terminal and the second control terminal of relay；When microprocessor connects
When the switching signal characterization switch OFF received, the output voltage of microprocessor 400 is low, triode Q510 shutdown, relay
The first control terminal and the second control terminal between voltage be zero, relay shutdown.
Electronic switch is also possible to bidirectional thyristor.When electronic switch is bidirectional thyristor, ON-OFF control circuit 500 is wrapped
NPN triode Q510 is included, the collector of triode Q510 is connected to supply voltage VD, and the emitter of triode Q510 is connected to double
To the control terminal of thyristor, the base stage of triode Q510 is connected to microprocessor 400.When the switching signal that microprocessor receives
When characterizing switch conduction, the output voltage of microprocessor 400 is height, triode Q510 conducting, bidirectional thyristor control terminal voltage
For supply voltage VD, bidirectional thyristor conducting；When the switching signal that microprocessor receives characterizes switch OFF, microprocessor
400 output voltage is low, triode Q510 shutdown, bidirectional thyristor shutdown.
The circuit that electronic switch can be rectifier bridge and unidirectional thyristor parallel connection is formed.
In one embodiment, microprocessor 400 is wireless control microprocessor or touch control microprocessor or infrared
Acoustic control microprocessor.
Although embodiment is separately illustrated and is illustrated above, it is related to the common technology in part, in ordinary skill
Personnel apparently, can be replaced and integrate between the embodiments, be related to one of embodiment and the content recorded is not known, then
It can refer to another embodiment on the books.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (10)
1. a kind of list firewire power supply circuit, it is characterised in that:
Including first input end, the second input terminal, first switch and on-state charging circuit, the first input end passes through described the
One switch is connected to the first input end of the on-state charging circuit, and second input terminal is the of the on-state charging circuit
The output of two input terminals, the on-state charging circuit is connected to output end, and when first switch conducting, the first input end is logical
It crosses the on-state charging circuit and gives output power supply,
The on-state charging circuit includes first switch tube, the first one-way conduction element, and the first of the on-state charging circuit is defeated
Enter end to be connected to by the first switch tube with reference to ground, the first input end of the on-state charging circuit is single by described first
It is connected to output end to breakover element, second input terminal is connected to reference to ground,
When the output end is lower than first voltage threshold value relative to the voltage on reference ground, the output in charged state,
When the output end voltage rises to second voltage threshold value, the output is in non-charged state, when the output end electricity
Pressure drop then returns to charged state as low as the first voltage threshold value；
In the charged state, the first switch tube shutdown, the first input end passes through the first one-way conduction member
Part charges to the output end；
In the non-charged state, the first switch tube is fully on；
The first one-way conduction element is diode or switching tube.
2. list firewire power supply circuit according to claim 1, it is characterised in that:
The on-state charging circuit further includes second switch and the second one-way conduction element, and second input terminal passes through described
Second switch is connected to the reference ground, and second input terminal is connected to described defeated by the second one-way conduction element
Outlet；
In the charged state, the second switch shutdown, second input terminal passes through the second one-way conduction member
Part charges to the output end；
In the non-charged state, the second switch is fully on；
The second one-way conduction element is diode or switching tube.
3. list firewire power supply circuit according to claim 1, it is characterised in that: the first switch is mechanical switch or electricity
Sub switch.
4. list firewire power supply circuit according to claim 3, it is characterised in that: the electronic switch is relay, or
Bidirectional thyristor, or the circuit for rectifier bridge and unidirectional thyristor parallel connection formation.
5. list firewire power supply circuit according to claim 3, it is characterised in that: further include microprocessor (MCU) and switch
Control circuit, the microprocessor receive switching signal, control institute by the ON-OFF control circuit according to the switching signal
State the turn-on and turn-off of first switch.
6. list firewire power supply circuit according to claim 5, it is characterised in that: the microprocessor is the micro- place of wireless control
Manage device or touch control microprocessor or infrared acoustic control microprocessor.
7. list firewire power supply circuit according to claim 1, it is characterised in that: further include off-state charging circuit, when described
When first switch turns off, the first input end is charged by the off-state charging circuit to the output end.
8. list firewire power supply circuit according to claim 7, it is characterised in that: the off-state charging circuit is circuit of reversed excitation
It or is BUCK reduction voltage circuit.
9. a kind of list firewire power supply circuit, it is characterised in that: including first input end, the second input terminal, first switch, the first list
To breakover element and linear voltage-stabilizing circuit, the first input end is connected to second input terminal by the first switch,
The first one-way conduction element and linear voltage-stabilizing circuit series connection, the first input end pass through first one-way conduction
Element and the linear voltage-stabilizing circuit are connected to output end, and when first switch shutdown, the first input end passes through described the
One one-way conduction element and the linear voltage-stabilizing circuit give output power supply.
10. list firewire power supply circuit according to claim 9, it is characterised in that: the first switch be mechanical switch or
Electronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821748288.0U CN209119877U (en) | 2018-10-26 | 2018-10-26 | A kind of list firewire power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821748288.0U CN209119877U (en) | 2018-10-26 | 2018-10-26 | A kind of list firewire power supply circuit |
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| Publication Number | Publication Date |
|---|---|
| CN209119877U true CN209119877U (en) | 2019-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821748288.0U Active CN209119877U (en) | 2018-10-26 | 2018-10-26 | A kind of list firewire power supply circuit |
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| CN (1) | CN209119877U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378886A (en) * | 2018-10-26 | 2019-02-22 | 杰华特微电子（杭州）有限公司 | A kind of list firewire power supply circuit |
| CN110676119A (en) * | 2019-10-14 | 2020-01-10 | 珠海格力电器股份有限公司 | Single-live-wire switch and controller power supply method of single-live-wire switch |
| TWI719593B (en) * | 2019-08-16 | 2021-02-21 | 益力半導體股份有限公司 | Single firewire power control system |
-
2018
- 2018-10-26 CN CN201821748288.0U patent/CN209119877U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378886A (en) * | 2018-10-26 | 2019-02-22 | 杰华特微电子（杭州）有限公司 | A kind of list firewire power supply circuit |
| TWI719593B (en) * | 2019-08-16 | 2021-02-21 | 益力半導體股份有限公司 | Single firewire power control system |
| CN110676119A (en) * | 2019-10-14 | 2020-01-10 | 珠海格力电器股份有限公司 | Single-live-wire switch and controller power supply method of single-live-wire switch |
| CN110676119B (en) * | 2019-10-14 | 2020-10-02 | 珠海格力电器股份有限公司 | Single-live-wire switch and controller power supply method of single-live-wire switch |
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Address after: Room 901-23, 9 / F, west 4 building, Xigang development center, 298 Zhenhua Road, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province, 310030 Patentee after: Jiehuate Microelectronics Co.,Ltd. Address before: Room 424, building 1, 1500 Wenyi West Road, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: JOULWATT TECHNOLOGY (HANGZHOU) Co.,Ltd. |