CN205304589U - Power source control circuit - Google Patents
Power source control circuit Download PDFInfo
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- CN205304589U CN205304589U CN201521115788.7U CN201521115788U CN205304589U CN 205304589 U CN205304589 U CN 205304589U CN 201521115788 U CN201521115788 U CN 201521115788U CN 205304589 U CN205304589 U CN 205304589U
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- power supply
- supply module
- control circuit
- energy control
- voltage
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- 238000002955 isolation Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
Abstract
The utility model discloses a power source control circuit. Wherein, this power source control circuit includes: the power module, the messenger that connect gradually can control circuit and the 2nd power module, make and to include at least by control circuit: the triode is connected with a power module and the 2nd power module respectively for receive the first voltage of power module output, and according to a voltage output level signal to the 2nd power module, wherein, level signal is used for controlling the 2nd power module's operating condition. The utility model provides a realize switching of power's the technical problem that circuit structure is complicated in the correlation technique.
Description
Technical field
The utility model relates to circuit field, specifically, it relates to a kind of Energy control circuit.
Background technology
In the prior art, it is possible to realize the switching between different electrical power module by switching circuit, such as, when the first AC power module generation fault, it is possible to start AC power module for subsequent use and carry out work.
It should be noted that, along with the development of social life, existing home appliance often requires both by AC power module for power supply, power by direct supply (such as moving power supply) again, but, the switching circuit of prior art can not the switching of power of alterating and direct current and also the design of existing power supply switch circuit complicated, be often applied to heavy mechanical equipment, be not suitable for domestic electric appliance.
For the problem of the circuit complex structure realizing electrical source exchange in above-mentioned correlation technique, effective solution is not yet proposed at present.
Practical novel content
The utility model embodiment provides a kind of Energy control circuit, to solve the technical problem of the circuit complex structure realizing electrical source exchange in correlation technique.
An aspect according to the utility model embodiment, it provides a kind of Energy control circuit, this Energy control circuit comprises: the first power supply module connected successively, enable pilot circuit and the 2nd power supply module; Enable pilot circuit at least comprises: triode, respectively with the first power supply module and the 2nd power supply model calling, for receiving the first voltage that the first power supply module exports, and according to the first voltage outputs level signals to the 2nd power supply module, wherein, level signal is for controlling the working order of the 2nd power supply module.
Further, triode by collector electrode to the 2nd power supply module outputs level signals, wherein, 2nd power supply module comprises: boost chip, it is connected with the collector electrode of triode, under being low level situation at level signal, stop work, export the 2nd voltage when level signal is high level.
Further, this Energy control circuit also comprises: the first isolation circuit, with the first power supply model calling, for the first voltage is forwarded to electrical equipment.
Further, the first isolation circuit at least comprises: diode, is connected with the input terminus of the first power supply module and power-supply unit respectively.
Further, this Energy control circuit also comprises: the 2nd isolation circuit, with the 2nd power supply model calling, for the 2nd voltage is forwarded to electrical equipment.
Further, the 2nd isolation circuit also comprises: MOS manages, and is connected with the input terminus of the 2nd power supply module and electrical equipment respectively.
Further, the first power supply module is AC-DC power module.
Further, the 2nd power supply module is DC-DC power module.
Further, triode is NPN triode. According to another aspect of the present utility model, additionally providing a kind of Energy control system, this system comprises the Energy control circuit of preceding claim any one.
In the utility model embodiment, Energy control circuit comprises: the first power supply module connected successively, enable pilot circuit and the 2nd power supply module; Enable pilot circuit at least comprises: triode, respectively with the first power supply module and the 2nd power supply model calling, for receiving the first voltage that the first power supply module exports, and according to the first voltage outputs level signals to the 2nd power supply module, wherein, level signal, for controlling the working order of the 2nd power supply module, solves the technical problem of the circuit complex structure realizing electrical source exchange in correlation technique.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide to of the present utility model it is further understood that the part of formation the application, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 is the structural representation of a kind of Energy control circuit according to the utility model embodiment; And
Fig. 2 is can the structural representation of selection of land Energy control circuit according to a kind of of the utility model embodiment.
Embodiment
In order to make those skilled in the art understand the utility model scheme better, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the embodiment of the utility model part, instead of whole embodiments. Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
According to the utility model embodiment, it provides the embodiment of a kind of Energy control circuit, as shown in Figure 1, this Energy control circuit can comprise:
The first power supply module 121, enable pilot circuit 16 and the 2nd power supply module 122 connected successively, described enable pilot circuit 16 at least comprises: triode 161, it is connected with described first power supply module 121 and described 2nd power supply module 122 respectively, for receiving the first voltage that described first power supply module 121 exports, and according to described first voltage outputs level signals to described 2nd power supply module 122, wherein, described level signal is for controlling the working order of described 2nd power supply module 122.
Specifically, in this scheme, above-mentioned first power supply module 121 can be the exchange city electricity for receiving 220v, then alternating-current is forwarded to electrical equipment 14, above-mentioned 2nd power supply module 122 can receive direct current, such as mobile phone power bank, and then direct current is forwarded to electrical equipment 14.
The present embodiment by adding enable pilot circuit in Energy control circuit, and utilizes the triode in enable pilot circuit to realize the switching of multiple power supply module, solves the technical problem of the circuit complex structure realizing electrical source exchange in correlation technique.
Can selection of land, at least comprise in above-mentioned enable pilot circuit: triode, triode after being turned, triode by collector electrode to the 2nd power supply module outputs level signals.
Above-mentioned 2nd power supply module can comprise: boost chip, is connected with the collector electrode of above-mentioned triode, for stopping work under described level signal is low level situation, exports the 2nd voltage when described level signal is high level.
Specifically, in this scheme, enable pilot circuit can comprise connect successively the first resistance, the 2nd resistance and triode, first power supply module export the first voltage after the first resistance and the 2nd resistance, triode ON, then the collector electrode of triode can send level signal to the enable port of boost chip, wherein, under level signal is low level situation, boost chip stopping work, when enable level signal is high level (unsettled), boost chip starts normal operation. It should be noted that, the direct current received can be boosted by above-mentioned boost chip, then the 2nd voltage is sent to electrical equipment.
Also it should be noted that, in this scheme, enable pilot circuit is connected to the output of the first power supply module, when power supply module output voltage, enable pilot circuit works, produce enable control signal (low level signal) and export to the 2nd power supply module, make the 2nd power supply module from service. Now, even if there being the 2nd power supply input to have plant-grid connection, the 2nd power supply module also can not work, and electrical equipment is by the first power supply module for power supply. When only the 2nd power supply module accesses power supply, it is 0 that first power supply module exports operating voltage, enable pilot circuit produces contrary enable control signal (high level signal), and the 2nd power supply module starts normal operation, and electrical equipment is by the 2nd power supply module for power supply. Realize the first power supply module and the switching of the 2nd power supply module with this, and when both simultaneously access time the first power supply module preferentially in the 2nd power supply module.
Can selection of land, composition graphs 1, Energy control circuit can also comprise: first isolation circuit 181, with described first power supply model calling, for described first voltage is forwarded to electrical equipment. It should be noted that, the first isolation circuit comprises diode, is connected with the input terminus of described first power supply module and power-supply unit respectively.
Can selection of land, composition graphs 1, Energy control circuit can also comprise: the 2nd isolation circuit 182, with described 2nd power supply model calling, for described 2nd voltage is forwarded to described electrical equipment. It should be noted that, the 2nd isolation circuit can also comprise: MOS manages, and is connected with the input terminus of described 2nd power supply module and described electrical equipment respectively.
Specifically, as shown in Figure 1, the first isolation circuit 181 it is provided with between AC power module and electrical equipment, the 2nd isolation circuit 182 it is being provided with between direct supply module and electrical equipment, it should be noted that, in the present embodiment, isolation circuit act as the output by two power supply modules isolates, prevent two power supply modules from influencing each other, such as, only during direct supply module work, its output can not be poured in down a chimney the output to AC power module thus be affected the operating voltage that enable pilot circuit collects mistake, produce the enable control signal of mistake.
Can selection of land, AC power can be AC-DC voltage transitions device, for the alternating-current that AC power module receives is converted to direct current.
Specifically, AC power module can be the switch power supply of AC-DC, 220V alternating-current can be converted to the direct current required for power supply exports by it, 24V direct current as conventional in electrical equipment (such as fan), the direct current after above-mentioned conversion is supplied electrical equipment by AC power module after the first isolation circuit.
Can selection of land, direct supply module can be DC-DC booster circuit, is connected with the 2nd input terminus of described direct supply module, for raising the galvanic voltage of reception; And export direct current to the 2nd isolation circuit.
Specifically, direct supply module can be the boost-up circuit of DC-DC, the low-voltage DC (such as 5V) that direct supply module receives is converted to the direct current needed for output, such as 24V direct current by it, then exports electrical equipment to after the 2nd isolation circuit.
Can selection of land, in above-mentioned enable pilot circuit, triode can be NPN triode.
To sum up, in the present embodiment, AC power module, preferentially in direct supply module, namely when both connect electricity simultaneously, is powered to electrical equipment by AC power module. It should be noted that, in this application, priority can adjust, and namely when both connect electricity simultaneously, powers to electrical equipment by direct supply module.
Present invention also provides a kind of Energy control system, this system comprises any one Energy control circuit described above.
It should be noted that, in this application, when multichannel inputs, it is possible to realize the two priority classes of multichannel input by increasing multiple enable pilot circuit.
Below in conjunction with Fig. 2, introduce a kind of preferred embodiment of the application:
In fig. 2, the 220V that 1 is power supply input exchanges city's electricity; 2 turn DC switch power supply for general AC; 3 is enable pilot circuit; 4 and 7 is isolation circuit; The low-voltage DC 2 that 5 is mobile power supply input; 6 is DC-DC boost control circuit, and 5V low dc voltage can be converted to 24V direct current by this DC-DC boost control circuit. Enable output in enable pilot circuit can be connected with the enable port of the DC-DC boost chip U1 in 6, and when enable output lower level, boost chip stopping work, time unsettled, chip starts normal operation.
The following is the concrete working process of pilot circuit in Fig. 2:
When accessing 220V city electricity, AC-DC switch power supply works, and exports 24V direct current, after diode D1 in 4 arrive output terminal P2. Wherein, AC-DC output terminal is connected with the enable pilot circuit in 3, owing to AC-DC has output, output voltage makes NPN triode Q1 conducting by resistance R1 and R2, and the collector electrode coupling end (enable signal output terminal) of resistance R1 and triode Q1 is drawn low, and the DC-DC boost control chip in 6 is forbidden work, now, even if there being power supply input 2, there will not be output, the output of P2 end inputs 1 offer by power supply. Thus achieve power supply input 1 and preferentially input 2 in power supply. When only accessing power supply and input 2,5V voltage is converted to the direct current of 24V by boost-up circuit, then outputs to terminals P 2 after isolating the protection diode of mos pipe Q2 in circuit 7 to system power supply below. Owing to there is no power supply input 1, so AC-DC output terminal does not export, enable pilot circuit does not work, the enable signal of the DC-DC boost chip in 6 is unsettled, and, owing to output terminal has 4 and 7 isolation circuit, now export the output terminal that can not pour in down a chimney meeting AC-DC, enable pilot circuit can not be impacted.
Above-mentioned practical new embodiment sequence number, just to describing, does not represent the quality of embodiment.
In above-described embodiment of the present utility model, the description of each embodiment is all emphasized particularly on different fields, certain embodiment there is no the part described in detail, it is possible to see the associated description of other embodiments.
The unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or can also be distributed on multiple unit. Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing unit, it is also possible to is that the independent physics of each unit exists, it is also possible to two or more unit are in a unit integrated. Above-mentioned integrated unit both can adopt the form of hardware to realize, it is also possible to adopts the form of software functional unit to realize.
The above is only preferred implementation of the present utility model; it is noted that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also making some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. an Energy control circuit, it is characterised in that, comprising:
The the first power supply module connected successively, enable pilot circuit and the 2nd power supply module;
Described enable pilot circuit at least comprises: triode, respectively with described first power supply module and described 2nd power supply model calling, for receiving the first voltage that described first power supply module exports, and according to described first voltage outputs level signals to described 2nd power supply module, wherein, described level signal is for controlling the working order of described 2nd power supply module.
2. Energy control circuit according to claim 1, it is characterised in that, described triode exports described level signal by collector electrode to described 2nd power supply module, and wherein, described 2nd power supply module comprises:
Boost chip, is connected with the described collector electrode of described triode, for stopping work under described level signal is low level situation, exports the 2nd voltage when described level signal is high level.
3. Energy control circuit according to claim 2, it is characterised in that, described Energy control circuit also comprises:
First isolation circuit, with described first power supply model calling, for described first voltage is forwarded to electrical equipment.
4. Energy control circuit according to claim 3, it is characterised in that, described first isolation circuit at least comprises:
Diode, is connected with the input terminus of described first power supply module and power-supply unit respectively.
5. Energy control circuit according to claim 4, it is characterised in that, described Energy control circuit also comprises:
2nd isolation circuit, with described 2nd power supply model calling, for described 2nd voltage is forwarded to described electrical equipment.
6. Energy control circuit according to claim 5, it is characterised in that, described 2nd isolation circuit also comprises:
MOS manages, and is connected with the input terminus of described 2nd power supply module and described electrical equipment respectively.
7. Energy control circuit according to claim 1, it is characterised in that, described first power supply module is AC-DC power module.
8. Energy control circuit according to claim 1, it is characterised in that, described 2nd power supply module is DC-DC power module.
9. Energy control circuit according to claim 1, it is characterised in that, described triode is NPN triode.
10. an Energy control system, it is characterised in that, described system comprises in claim 1 to 9 the Energy control circuit described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521115788.7U CN205304589U (en) | 2015-12-25 | 2015-12-25 | Power source control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521115788.7U CN205304589U (en) | 2015-12-25 | 2015-12-25 | Power source control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN205304589U true CN205304589U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521115788.7U Active CN205304589U (en) | 2015-12-25 | 2015-12-25 | Power source control circuit |
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| CN (1) | CN205304589U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110874109A (en) * | 2018-08-30 | 2020-03-10 | 环达电脑(上海)有限公司 | Power input control circuit |
| CN111899681A (en) * | 2020-07-31 | 2020-11-06 | Oppo广东移动通信有限公司 | Power supply circuit and method for display screen in terminal |
-
2015
- 2015-12-25 CN CN201521115788.7U patent/CN205304589U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110874109A (en) * | 2018-08-30 | 2020-03-10 | 环达电脑(上海)有限公司 | Power input control circuit |
| CN110874109B (en) * | 2018-08-30 | 2021-11-16 | 环达电脑(上海)有限公司 | Power input control circuit |
| CN111899681A (en) * | 2020-07-31 | 2020-11-06 | Oppo广东移动通信有限公司 | Power supply circuit and method for display screen in terminal |
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