CN214281022U - Dual-power circuit - Google Patents
Dual-power circuit Download PDFInfo
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- CN214281022U CN214281022U CN202120347945.6U CN202120347945U CN214281022U CN 214281022 U CN214281022 U CN 214281022U CN 202120347945 U CN202120347945 U CN 202120347945U CN 214281022 U CN214281022 U CN 214281022U
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Abstract
The utility model discloses a dual-power circuit, which comprises a main control chip, a dual-channel control circuit, an alternating current input circuit, a direct current input circuit and a coupler circuit; direct current input circuit's input pass through the single-pole double-throw switch respectively with the group battery alternating current input circuit's output is connected, binary channels control circuit's input is connected with alternating current input circuit's output, direct current input circuit's output respectively, coupler circuit's input is connected with binary channels control circuit's output, coupler circuit still with main control chip connects, main control chip connects binary channels control circuit's control end. The utility model discloses simplify the circuit greatly, reduce the quantity of components and parts, reduce cost to use very nimble, improved the life-span and the market competition of product.
Description
Technical Field
The utility model relates to a power supply circuit technical field specifically is a dual supply circuit.
Background
At present, some power supply circuits of electrical equipment can only be connected with alternating current, some power supply circuits can only be connected with direct current, and alternating current or direct current can also be switched and connected through a switch, but the circuit structure of the power supply circuit for switching and connecting alternating current or direct current through the switch is complex, the cost is high, the stability and the anti-interference capability are poor, the power supply circuit is not flexible to use, and the functions are few.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dual power supply circuit can realize dual power supply switching power supply, and direct current input circuit can all can work when connecing the alternating current or connecing the direct current, can simplify the circuit greatly like this, reduces the quantity of components and parts, reduce cost to use very nimble, improved the life-span and the market competition of product.
In order to achieve the above object, the utility model provides a following technical scheme: a dual-power circuit comprises a main control chip, a dual-channel control circuit, an alternating current input circuit, a direct current input circuit and a coupler circuit; direct current input circuit's input pass through the single-pole double-throw switch respectively with the group battery alternating current input circuit's output is connected, binary channels control circuit's input is connected with alternating current input circuit's output, direct current input circuit's output respectively, coupler circuit's input is connected with binary channels control circuit's output, coupler circuit still with main control chip connects, main control chip connects binary channels control circuit's control end.
Preferably, the dual-channel control circuit comprises a first amplifier, a second amplifier, a third amplifier, a fourth amplifier and a multi-channel signal switch, wherein the input end of the first amplifier is connected with the main control chip, the output end of the first amplifier is connected with the first input end of the multi-channel signal switch, the input end of the second amplifier is connected with the main control chip, the output end of the second amplifier is connected with the second input end of the multi-channel signal switch, the first output end of the multi-channel signal switch is connected with the control end of the third amplifier, and the second output end of the multi-channel signal switch is connected with the control end of the fourth amplifier.
Preferably, the input end of the third amplifier is connected with the output end of the direct current input circuit, and the input end of the fourth amplifier is connected with the output end of the alternating current input circuit.
Preferably, the coupler circuit includes a first coupler and a second coupler, an input of the first coupler is connected to an output terminal of the third amplifier, and an input of the second coupler is connected to an output terminal of the fourth amplifier.
Preferably, the alternating current input circuit comprises a transformer, a bridge and a first transformation chip, wherein the input end of the transformer is connected with alternating current, the output end of the transformer is connected with the bridge, and the output end of the bridge is connected with the input end of the first transformation chip.
Preferably, the first transformer chip is a 7812 type chip.
Preferably, the direct current input circuit comprises a first diode, a second transformer chip and a voltage regulator tube, wherein the input end of the second transformer chip is connected with the first diode, and the output end of the second transformer chip is connected with the voltage regulator tube.
Preferably, the second transformer chip is LM2576T5.0 type chip.
Preferably, the system further comprises a crystal oscillator circuit, and the crystal oscillator circuit is connected with the main control chip.
Preferably, the circuit further comprises a reset circuit, and the reset circuit is connected with the main control chip.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a dual supply circuit, after the access alternating current, the alternating current turns into alternating current 220V 12V after alternating current input circuit, export output voltage Vout behind the binary channels control circuit all the way, direct current input circuit is given in the output of second way, turn into 5V with 12V by direct current input circuit, then export and give binary channels control circuit output voltage Vout 'again, this 2 way output realizes the conversion output by master control chip control binary channels control circuit, such design, can control 12V or 5V's output at will.
2. The utility model discloses a dual power supply circuit, in case when not inserting the alternating current, then during single-pole double-throw switch-on group battery and direct current input circuit, then the disconnection of being connected between alternating current input circuit and the direct current input circuit, the 12V of group battery output gives the system power supply, 12V turns into 5V output through direct current input circuit, then export and give binary channels control circuit output voltage Vout' again, can make the system still can normally work like this, can regard as emergent or report to the police to use, avoid the outage suddenly, the unable normal work of equipment.
3. The utility model discloses a dual supply circuit can realize dual supply switching power supply, and direct current input circuit can all work when connecing the alternating current or connecing the direct current, can simplify the circuit greatly like this, reduces the quantity of components and parts, reduce cost to use very nimble, improved the life-span and the market competition of product.
4. The utility model discloses a design of coupler circuit can improve the interference killing feature of circuit greatly, can also ensure the circuit and can the steady operation when the alternating current-direct current switches.
5. The utility model discloses a stability that can improve the circuit greatly, improve the circuit performance is managed in the design of stabilivolt.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a schematic circuit diagram of a dual channel control circuit of the present invention;
fig. 3 is a schematic circuit diagram of an ac input circuit according to the present invention;
fig. 4 is a schematic circuit diagram of a dc input circuit according to the present invention;
fig. 5 is a schematic circuit diagram of the coupler circuit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1-5, the utility model provides a dual power supply circuit, which comprises a main control chip, a dual-channel control circuit, an alternating current input circuit, a direct current input circuit and a coupler circuit; the input end of the direct current input circuit is connected with the output ends of the battery pack and the alternating current input circuit through the single-pole double-throw switch respectively, the input end of the double-channel control circuit is connected with the output end of the alternating current input circuit and the output end of the direct current input circuit respectively, the input end of the coupler circuit is connected with the output end of the double-channel control circuit, the coupler circuit is further connected with a main control chip, and the main control chip is connected with the control end of the double-channel control circuit.
The working principle is as follows: when alternating current is accessed, after the alternating current passes through an alternating current input circuit, 220V of the alternating current is converted into 12V, one path of the alternating current is output to a double-channel control circuit and then voltage Vout is output, the second path of the alternating current is output to a direct current input circuit, the 12V is converted into 5V by the direct current input circuit and then output to the double-channel control circuit and then voltage Vout 'is output, the 2 paths of output are converted and output by controlling the double-channel control circuit by a main control chip, for example, when the voltage Vout needs to be output, the main control chip controls the double-channel control circuit to control the first path of output, and when the voltage Vout' needs to be output, the main control chip controls the double-channel control circuit to control the second path of output.
Once the alternating current is not connected, when the single-pole double-throw switch is connected with the battery pack and the direct current input circuit, the connection between the alternating current input circuit and the direct current input circuit is disconnected, 12V output by the battery pack supplies power to the system, 12V is converted into 5V output through the direct current input circuit and then is output to the dual-channel control circuit to output the voltage Vout', and therefore the system can still work normally.
The utility model discloses a dual supply circuit can realize dual supply switching power supply, and direct current input circuit can all work when connecing the alternating current or connecing the direct current, can simplify the circuit greatly like this, reduces the quantity of components and parts, reduce cost to the use is got up very in a flexible way.
In another embodiment of the present invention, in order to realize the random switching of the multi-path voltage output, as shown in fig. 2, the dual-channel control circuit includes a first amplifier IC1, a second amplifier IC2, a third amplifier IC3, a fourth amplifier IC4, a multi-path signal switch UK1, an input end of the first amplifier IC1 is connected to the main control chip U1, an output end of the first amplifier IC1 is connected to a first input end of the multi-path signal switch UK1, an input end of the second amplifier IC2 is connected to the main control chip U1, an output end of the second amplifier IC2 is connected to a second input end of the multi-path signal switch UK1, a first output end of the multi-path signal switch UK1 is connected to a control end of the third amplifier IC3, and a second output end of the multi-path signal switch UK1 is connected to a control end of the fourth amplifier IC 4. The input of the third amplifier IC3 is connected to the output of the dc input circuit, and the input of the fourth amplifier IC4 is connected to the output of the ac input circuit.
When the voltage-controlled switch works, the main control chip sends a control signal to the multi-path signal switch UK1 through the first amplifier IC1 and the second amplifier IC2, and then the multi-path signal switch UK1 controls the signal to the third amplifier IC3 and the fourth amplifier IC4, so that a voltage output channel is controlled.
The utility model discloses can also carry out multichannel voltage output's expansion, other outputs at multichannel signal switch UK1 insert other power conversion circuit through the amplifier, utilize multichannel signal switch UK1 and amplifier to control other power conversion circuit's break-make to realize multichannel voltage output.
In another embodiment of the present invention, as shown in fig. 2, the ac input circuit includes a transformer T11, a bridge D14, and a first transformer chip U11, the input end of the transformer T11 is connected to the ac power, the output end of the transformer T11 is connected to the bridge D14, and the output end of the bridge D14 is connected to the input end of the first transformer chip U11. The first transformer chip is a 7812 type chip.
When the alternating current transformer works, alternating current sequentially passes through the transformer T11, the bridge D14 and the first transformer chip U11, and then 12V voltage is output.
In another embodiment of the present invention, as shown in fig. 3, the dc input circuit includes a first diode D25, a second transformer chip U22, a voltage regulator tube D28, an input end of the second transformer chip U22 is connected to the first diode D25, and an output end of the second transformer chip U22 is connected to the voltage regulator tube D28. The second voltage transformation chip is an LM2576T5.0 model chip and is used for converting the voltage from 12V to 5V.
In another embodiment of the present invention, in order to improve the anti-interference capability of the circuit, as shown in fig. 5, the coupler circuit includes a first coupler JI1 and a second coupler JI2, the input of the first coupler JI1 is connected to the output terminal of the third amplifier IC3, and the input of the second coupler JI2 is connected to the output terminal of the fourth amplifier IC 4.
The utility model discloses an in another embodiment, still include the crystal oscillator circuit, the crystal oscillator circuit is connected with main control chip.
The utility model discloses an in another embodiment, in order to reset, still include reset circuit, reset circuit is connected with main control chip.
The utility model discloses ingenious couple together binary channels control circuit, alternating current input circuit, direct current input circuit to direct current input circuit can all work when connecing the alternating current or connecing the direct current, and interference killing feature, stability are all very good.
In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A dual power supply circuit, characterized in that: the system comprises a main control chip, a dual-channel control circuit, an alternating current input circuit, a direct current input circuit and a coupler circuit; direct current input circuit's input pass through the single-pole double-throw switch respectively with the group battery alternating current input circuit's output is connected, binary channels control circuit's input is connected with alternating current input circuit's output, direct current input circuit's output respectively, coupler circuit's input is connected with binary channels control circuit's output, coupler circuit still with main control chip connects, main control chip connects binary channels control circuit's control end.
2. The dual power supply circuit of claim 1, wherein: the double-channel control circuit comprises a first amplifier, a second amplifier, a third amplifier, a fourth amplifier and a multi-channel signal switch, wherein the input end of the first amplifier is connected with a main control chip, the output end of the first amplifier is connected with the first input end of the multi-channel signal switch, the input end of the second amplifier is connected with the main control chip, the output end of the second amplifier is connected with the second input end of the multi-channel signal switch, the first output end of the multi-channel signal switch is connected with the control end of the third amplifier, and the second output end of the multi-channel signal switch is connected with the control end of the fourth amplifier.
3. The dual power supply circuit of claim 2, wherein: the input end of the third amplifier is connected with the output end of the direct current input circuit, and the input end of the fourth amplifier is connected with the output end of the alternating current input circuit.
4. The dual power supply circuit of claim 3, wherein: the coupler circuit comprises a first coupler and a second coupler, wherein the input end of the first coupler is connected with the output end of the third amplifier, and the input end of the second coupler is connected with the output end of the fourth amplifier.
5. The dual power supply circuit of claim 1, wherein: the alternating current input circuit comprises a transformer, an electric bridge and a first transformation chip, wherein the input end of the transformer is connected with alternating current, the output end of the transformer is connected with the electric bridge, and the output end of the electric bridge is connected with the input end of the first transformation chip.
6. The dual power supply circuit of claim 5, wherein: the first transformer chip is a 7812 type chip.
7. The dual power supply circuit of claim 1, wherein: the direct current input circuit comprises a first diode, a second transformer chip and a voltage-stabilizing tube, wherein the input end of the second transformer chip is connected with the first diode, and the output end of the second transformer chip is connected with the voltage-stabilizing tube.
8. The dual power supply circuit of claim 7, wherein: the second voltage transformation chip is LM2576T5.0 type chip.
9. The dual power supply circuit of claim 1, wherein: the crystal oscillator circuit is connected with the main control chip.
10. The dual power supply circuit of claim 1, wherein: the reset circuit is connected with the main control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120347945.6U CN214281022U (en) | 2021-02-07 | 2021-02-07 | Dual-power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120347945.6U CN214281022U (en) | 2021-02-07 | 2021-02-07 | Dual-power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214281022U true CN214281022U (en) | 2021-09-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120347945.6U Active CN214281022U (en) | 2021-02-07 | 2021-02-07 | Dual-power circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214281022U (en) |
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2021
- 2021-02-07 CN CN202120347945.6U patent/CN214281022U/en active Active
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