CN204633626U - A kind of multi-output switch power source circuit - Google Patents
A kind of multi-output switch power source circuit Download PDFInfo
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- CN204633626U CN204633626U CN201520230839.4U CN201520230839U CN204633626U CN 204633626 U CN204633626 U CN 204633626U CN 201520230839 U CN201520230839 U CN 201520230839U CN 204633626 U CN204633626 U CN 204633626U
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Abstract
A kind of multi-output switch power source circuit, relate to switch power technology field, its circuit comprises circuit of reversed excitation, transformer, rectification circuit, PWM controller, feedback circuit and at least duplex feeding branch road, branch road of powering described in every road comprises the chip that model is TPS2511, first resistance, second resistance, 3rd resistance, first electric capacity, second electric capacity and DC socket, the chip of the utility model by utilizing model to be TPS2511, first resistance, second resistance, 3rd resistance, the power supply branch road of the first electric capacity and the second electric capacity composition, independent constant current can be realized, the direct voltage output of constant voltage, its data circuit voltage by Auto-Sensing load adjusts the combinations of voltages of D+ and D-automatically to realize charging port Intelligent Recognition, can compatible various load electronic equipment.
Description
Technical field
The utility model relates to switch power technology field, particularly relates to a kind of multi-output switch power source circuit.
Background technology
For application of power person, generally all wish what power supply product selected by it was " point-and-shoot ", as long as namely selected supply voltage load is no more than power supply maximum, no matter how each road load characteristic changes, and each road supply voltage is still accurately errorless.Only with regard to this point, multiple-output electric powers most is at present unsatisfactory.
Summary of the invention
The purpose of this utility model is avoid weak point of the prior art and provide a kind of multi-output switch power source circuit, this multi-output switch power source circuit can the data circuit voltage of Auto-Sensing load, combinations of voltages between automatic adjustment direct current output plus terminal and direct current output negative terminal, can compatible various load electronic equipment to realize charging port Intelligent Recognition.
The purpose of this utility model is achieved through the following technical solutions:
A kind of multi-output switch power source circuit is provided, comprises circuit of reversed excitation, transformer, rectification circuit, PWM controller, feedback circuit and at least duplex feeding branch road;
The input termination alternating current of described circuit of reversed excitation, the primary coil of the output termination transformer of described circuit of reversed excitation, the secondary coil of described transformer connects the input of rectification circuit, the input of feedback circuit described in the feedback termination of described rectification circuit, the output of described feedback circuit is connected with the input of described PWM controller, the output of described PWM controller is connected with the controlled end of described circuit of reversed excitation, the input of branch road of powering described in the output termination of described rectification circuit;
Branch road of powering described in every road comprises the chip that model is TPS2511, first resistance, second resistance, 3rd resistance, first electric capacity, second electric capacity and DC socket, described DC socket comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described first electric capacity is connected to described rectification circuit and ground, described first resistance is connected to the positive output end of described rectification circuit and the CS end of chip, described second resistance is connected between the positive output end of described rectification circuit and the EN end of chip, described 3rd resistance is connected between the LIN end of described chip and ground, described second electric capacity is connected between the OUT end of described chip and ground, the V+ end of described DC socket is held with the OUT of chip and is connected, the D-end of described DC socket is held with the d-of chip and is connected, the D+ end of described DC socket is held with the D+ of chip and is connected, the V-of described DC socket holds ground connection.
Described DC socket is set to USB socket.
Described power supply branch road is provided with three tunnels, comprises the first power supply branch road, the second power supply branch road and the 3rd power supply branch road,
Described first power supply branch road comprises chip U4, resistance R24, resistance R26, resistance R25, electric capacity C12, electric capacity C13 and USB socket USB1, described USB socket USB1 comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described electric capacity C12 is connected to described rectification circuit and ground, the electric capacity CS of positive output end and chip U4 that described resistance R24 is connected to described rectification circuit holds, described resistance R26 is connected between the positive output end of described rectification circuit and the EN end of chip U4, described resistance R25 is connected between the LIN end of described chip U4 and ground, described electric capacity C13 is connected between the OUT end of described chip U4 and ground, the V+ end of described USB socket USB1 is held with the OUT of chip U4 and is connected, the D-end of described USB socket USB1 is held with the d-of chip U4 and is connected, the D+ end of described USB socket USB1 is held with the D+ of chip U4 and is connected, the V-of described USB socket USB1 holds ground connection,
Described second power supply branch road comprises chip U5, resistance R27, resistance R29, resistance R28, electric capacity C14, electric capacity C15 and USB socket USB2, described USB socket USB2 comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described electric capacity C14 is connected to described rectification circuit and ground, the electric capacity CS of positive output end and chip U5 that described resistance R27 is connected to described rectification circuit holds, described resistance R29 is connected between the positive output end of described rectification circuit and the EN end of chip U5, described resistance R28 is connected between the LIN end of described chip U5 and ground, described electric capacity C15 is connected between the OUT end of described chip U5 and ground, the V+ end of described USB socket USB1 is held with the OUT of chip U5 and is connected, the D-end of described USB socket USB1 is held with the d-of chip U5 and is connected, the D+ end of described USB socket USB1 is held with the D+ of chip U5 and is connected, the V-of described USB socket USB1 holds ground connection,
Described 3rd power supply branch road comprises chip U6, resistance R30, resistance R29, resistance R31, electric capacity C16, electric capacity C17 and USB socket USB2, described USB socket USB2 comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described electric capacity C16 is connected to described rectification circuit and ground, the electric capacity CS of positive output end and chip U6 that described resistance R30 is connected to described rectification circuit holds, described resistance R32 is connected between the positive output end of described rectification circuit and the EN end of chip U6, described resistance R31 is connected between the LIN end of described chip U6 and ground, described electric capacity C17 is connected between the OUT end of described chip U6 and ground, the V+ end of described USB socket USB1 is held with the OUT of chip U6 and is connected, the D-end of described USB socket USB1 is held with the d-of chip U6 and is connected, the D+ end of described USB socket USB1 is held with the D+ of chip U6 and is connected, the V-of described USB socket USB1 holds ground connection.
Described circuit of reversed excitation comprises interchange and turns DC circuit, described PWM controller comprises switch element, the positive output end that described interchange turns DC circuit is connected with one end of the primary coil of described transformer, the other end of the primary coil of described transformer is connected with one end of described switch element, and the negative output terminal that the other end and the described interchange of described switch element turn DC circuit is connected.
The field effect transistor Q1 of described switch element to be model be SMK7N60.
Described PWM controller comprises chip U1, and the model of described chip U1 is R7735GGE, and the FB end of described chip U1 is connected with the output of described feedback circuit.
Described feedback circuit comprises optocoupler U2, and the collector electrode of the light-receiving device of described optocoupler U2 is held with the FB of described chip U1 and is connected.
The beneficial effects of the utility model: a kind of multi-output switch power source circuit of the present utility model comprises circuit of reversed excitation, transformer, rectification circuit, PWM controller, feedback circuit and three tunnels and to power branch road.
The input termination alternating current of described circuit of reversed excitation, the primary coil of the output termination transformer of described circuit of reversed excitation, the secondary coil of described transformer connects the input of rectification circuit, the input of feedback circuit described in the feedback termination of described rectification circuit, the output of described feedback circuit is connected with the input of described PWM controller, the output of described PWM controller is connected with the controlled end of described circuit of reversed excitation, the input of branch road of powering described in the output termination of described rectification circuit.
Described power supply branch road comprises the chip that model is TPS2511, first resistance, second resistance, 3rd resistance, first electric capacity, second electric capacity and DC socket, described DC socket comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described first electric capacity is connected to described rectification circuit and ground, described first resistance is connected to the positive output end of described rectification circuit and the CS end of chip, described second resistance is connected between the positive output end of described rectification circuit and the EN end of chip, described 3rd resistance is connected between the LIN end of described chip and ground, described second electric capacity is connected between the OUT end of described chip and ground, the V+ end of described DC socket is held with the OUT of chip and is connected, the D-end of described DC socket is held with the d-of chip and is connected, the D+ end of described DC socket is held with the D+ of chip and is connected, the V-of described DC socket holds ground connection.
The power supply branch road that the utility model consists of chip, the first resistance, the second resistance, the 3rd resistance, the first electric capacity and the second electric capacity utilizing model to be TPS2511, the direct voltage output of three tunnel independence constant currents, constant voltage can be realized, its data circuit voltage by Auto-Sensing load adjusts the combinations of voltages of D+ and D-automatically to realize charging port Intelligent Recognition, can compatible various load electronic equipment.
Accompanying drawing explanation
Accompanying drawing is utilized to be described further utility model, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 be a kind of multi-output switch power source circuit of the present utility model circuit block diagram.
Fig. 2 is the circuit diagram of the circuit of reversed excitation in Fig. 1.
Fig. 3 is the circuit diagram of transformer in Fig. 1 and rectification circuit.
Fig. 4 is the circuit diagram of the PWM controller in Fig. 1.
Fig. 5 is the circuit diagram of the feedback circuit in Fig. 1.
Fig. 6 is the circuit diagram of the first power supply branch road in Fig. 1.
Fig. 7 is the circuit diagram of the second power supply branch road in Fig. 1.
Fig. 8 is the circuit diagram of the 3rd power supply branch road in Fig. 1.
Include in figure:
1---circuit of reversed excitation, 11---exchanges and turns DC circuit;
2---rectification circuit;
3---PWM controller;
4---feedback circuit;
5---the first power supply branch road;
6---the second power supply branch road;
7---the 3rd power supply branch road.
Embodiment
With the following Examples the utility model is further described.
A kind of multi-output switch power source circuit of the present embodiment, as shown in Figures 1 to 8, comprises circuit of reversed excitation 1, transformer, rectification circuit 2, PWM controller 3, feedback circuit 4 and three tunnels and to power branch road.
The input termination alternating current of described circuit of reversed excitation 1, the primary coil of the output termination transformer of described circuit of reversed excitation 1, the secondary coil of described transformer connects the input of rectification circuit 2, the input of feedback circuit 4 described in the feedback termination of described rectification circuit 2, the output of described feedback circuit 4 is connected with the input of described PWM controller 3, the output of described PWM controller 3 is connected with the controlled end of described circuit of reversed excitation 1, the input of branch road of powering described in the output termination of described rectification circuit 2.
Described power supply branch road comprises the chip that model is TPS2511, first resistance, second resistance, 3rd resistance, first electric capacity, second electric capacity and DC socket, described DC socket comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described first electric capacity is connected to described rectification circuit 2 and ground, described first resistance is connected to the positive output end of described rectification circuit 2 and the CS end of chip, described second resistance is connected between the positive output end of described rectification circuit 2 and the EN end of chip, described 3rd resistance is connected between the LIN end of described chip and ground, described second electric capacity is connected between the OUT end of described chip and ground, the V+ end of described DC socket is held with the OUT of chip and is connected, the D-end of described DC socket is held with the d-of chip and is connected, the D+ end of described DC socket is held with the D+ of chip and is connected, the V-of described DC socket holds ground connection.
The power supply branch road that the present embodiment consists of chip, the first resistance, the second resistance, the 3rd resistance, the first electric capacity and the second electric capacity utilizing model to be TPS2511, the direct voltage output of three tunnel independence constant currents, constant voltage can be realized, its data circuit voltage by Auto-Sensing load adjusts the combinations of voltages of D+ and D-automatically to realize charging port Intelligent Recognition, can compatible various load electronic equipment.
Wherein, described DC socket is set to USB socket, and now a lot of electronic product all adopts USB interface, can the use of compatible more electronic product.
Wherein, described power supply branch road comprises the first power supply branch road 5, second power supply branch road 6 and the 3rd power supply branch road 7.
It is the chip of TPS2511 that described first power supply branch road 5 comprises chip U4(model), resistance R24, resistance R26, resistance R25, electric capacity C12, electric capacity C13 and USB socket USB1, described USB socket USB1 comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described electric capacity C12 is connected to described rectification circuit 2 and ground, the electric capacity CS of positive output end and chip U4 that described resistance R24 is connected to described rectification circuit 2 holds, described resistance R26 is connected between the positive output end of described rectification circuit 2 and the EN end of chip U4, described resistance R25 is connected between the LIN end of described chip U4 and ground, described electric capacity C13 is connected between the OUT end of described chip U4 and ground, the V+ end of described USB socket USB1 is held with the OUT of chip U4 and is connected, the D-end of described USB socket USB1 is held with the d-of chip U4 and is connected, the D+ end of described USB socket USB1 is held with the D+ of chip U4 and is connected, the V-of described USB socket USB1 holds ground connection,
It is the chip of TPS2511 that described second power supply branch road 6 comprises chip U5(model), resistance R27, resistance R29, resistance R28, electric capacity C14, electric capacity C15 and USB socket USB2, described USB socket USB2 comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described electric capacity C14 is connected to described rectification circuit 2 and ground, the electric capacity CS of positive output end and chip U5 that described resistance R27 is connected to described rectification circuit 2 holds, described resistance R29 is connected between the positive output end of described rectification circuit 2 and the EN end of chip U5, described resistance R28 is connected between the LIN end of described chip U5 and ground, described electric capacity C15 is connected between the OUT end of described chip U5 and ground, the V+ end of described USB socket USB1 is held with the OUT of chip U5 and is connected, the D-end of described USB socket USB1 is held with the d-of chip U5 and is connected, the D+ end of described USB socket USB1 is held with the D+ of chip U5 and is connected, the V-of described USB socket USB1 holds ground connection,
It is the chip of TPS2511 that described 3rd power supply branch road 7 comprises chip U6(model), resistance R30, resistance R29, resistance R31, electric capacity C16, electric capacity C17 and USB socket USB2, described USB socket USB2 comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described electric capacity C16 is connected to described rectification circuit 2 and ground, the electric capacity CS of positive output end and chip U6 that described resistance R30 is connected to described rectification circuit 2 holds, described resistance R32 is connected between the positive output end of described rectification circuit 2 and the EN end of chip U6, described resistance R31 is connected between the LIN end of described chip U6 and ground, described electric capacity C17 is connected between the OUT end of described chip U6 and ground, the V+ end of described USB socket USB1 is held with the OUT of chip U6 and is connected, the D-end of described USB socket USB1 is held with the d-of chip U6 and is connected, the D+ end of described USB socket USB1 is held with the D+ of chip U6 and is connected, the V-of described USB socket USB1 holds ground connection.
Branch structure of more than powering is simple, and cost is low.
Wherein, described circuit of reversed excitation 1 comprises interchange and turns DC circuit 11, described PWM controller 3 comprises switch element, the positive output end that described interchange turns DC circuit 11 is connected with one end of the primary coil of described transformer, the other end of the primary coil of described transformer is connected with one end of described switch element, and the negative output terminal that the other end and the described interchange of described switch element turn DC circuit 11 is connected.
Wherein, the field effect transistor Q1 of described switch element to be model be SMK7N60, switch performance is good, and the life-span is long, and response rapidly.
Wherein, described PWM controller 3 comprises chip U1, and the model of described chip U1 is R7735GGE, and the FB end of described chip U1 is connected with the output of described feedback circuit 4.
Wherein, described feedback circuit 4 comprises optocoupler U2, and the collector electrode of the light-receiving device of described optocoupler U2 is held with the FB of described chip U1 and is connected, and optocoupler U2 can play the effect of isolated high-voltage and low pressure, makes the performance of circuit better.
Single-ended reverse exciting circuit integrity adopting the pwm chip R7735GGE of external high-pressure MOS be combined with optocoupler and three terminal regulator AZ431 controls formula circuit, output adopts USB special charging port (DCP) control IC TPS2511 to realize three tunnel independence constant currents, constant voltage USB output, its data circuit voltage by Auto-Sensing load adjusts the combinations of voltages of D+ and D-automatically to realize charging port Intelligent Recognition, can compatible various load electronic equipment.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not the restriction to the utility model protection range; although done to explain to the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (7)
1. a multi-output switch power source circuit, is characterized in that: comprise circuit of reversed excitation, transformer, rectification circuit, PWM controller, feedback circuit and at least duplex feeding branch road;
The input termination alternating current of described circuit of reversed excitation, the primary coil of the output termination transformer of described circuit of reversed excitation, the secondary coil of described transformer connects the input of rectification circuit, the input of feedback circuit described in the feedback termination of described rectification circuit, the output of described feedback circuit is connected with the input of described PWM controller, the output of described PWM controller is connected with the controlled end of described circuit of reversed excitation, the input of branch road of powering described in the output termination of described rectification circuit;
Branch road of powering described in every road comprises the chip that model is TPS2511, first resistance, second resistance, 3rd resistance, first electric capacity, second electric capacity and DC socket, described DC socket comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described first electric capacity is connected to described rectification circuit and ground, described first resistance is connected to the positive output end of described rectification circuit and the CS end of chip, described second resistance is connected between the positive output end of described rectification circuit and the EN end of chip, described 3rd resistance is connected between the LIN end of described chip and ground, described second electric capacity is connected between the OUT end of described chip and ground, the V+ end of described DC socket is held with the OUT of chip and is connected, the D-end of described DC socket is held with the d-of chip and is connected, the D+ end of described DC socket is held with the D+ of chip and is connected, the V-of described DC socket holds ground connection.
2. a kind of multi-output switch power source circuit as claimed in claim 1, is characterized in that: described DC socket is set to USB socket.
3. a kind of multi-output switch power source circuit as claimed in claim 2, is characterized in that: described power supply branch road is provided with three tunnels, comprises the first power supply branch road, the second power supply branch road and the 3rd power supply branch road,
Described first power supply branch road comprises chip U4, resistance R24, resistance R26, resistance R25, electric capacity C12, electric capacity C13 and USB socket USB1, described USB socket USB1 comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described electric capacity C12 is connected to described rectification circuit and ground, the electric capacity CS of positive output end and chip U4 that described resistance R24 is connected to described rectification circuit holds, described resistance R26 is connected between the positive output end of described rectification circuit and the EN end of chip U4, described resistance R25 is connected between the LIN end of described chip U4 and ground, described electric capacity C13 is connected between the OUT end of described chip U4 and ground, the V+ end of described USB socket USB1 is held with the OUT of chip U4 and is connected, the D-end of described USB socket USB1 is held with the d-of chip U4 and is connected, the D+ end of described USB socket USB1 is held with the D+ of chip U4 and is connected, the V-of described USB socket USB1 holds ground connection,
Described second power supply branch road comprises chip U5, resistance R27, resistance R29, resistance R28, electric capacity C14, electric capacity C15 and USB socket USB2, described USB socket USB2 comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described electric capacity C14 is connected to described rectification circuit and ground, the electric capacity CS of positive output end and chip U5 that described resistance R27 is connected to described rectification circuit holds, described resistance R29 is connected between the positive output end of described rectification circuit and the EN end of chip U5, described resistance R28 is connected between the LIN end of described chip U5 and ground, described electric capacity C15 is connected between the OUT end of described chip U5 and ground, the V+ end of described USB socket USB1 is held with the OUT of chip U5 and is connected, the D-end of described USB socket USB1 is held with the d-of chip U5 and is connected, the D+ end of described USB socket USB1 is held with the D+ of chip U5 and is connected, the V-of described USB socket USB1 holds ground connection,
Described 3rd power supply branch road comprises chip U6, resistance R30, resistance R29, resistance R31, electric capacity C16, electric capacity C17 and USB socket USB2, described USB socket USB2 comprises V+ end, D-holds, D+ end and V-end, between the positive output end that described electric capacity C16 is connected to described rectification circuit and ground, the electric capacity CS of positive output end and chip U6 that described resistance R30 is connected to described rectification circuit holds, described resistance R32 is connected between the positive output end of described rectification circuit and the EN end of chip U6, described resistance R31 is connected between the LIN end of described chip U6 and ground, described electric capacity C17 is connected between the OUT end of described chip U6 and ground, the V+ end of described USB socket USB1 is held with the OUT of chip U6 and is connected, the D-end of described USB socket USB1 is held with the d-of chip U6 and is connected, the D+ end of described USB socket USB1 is held with the D+ of chip U6 and is connected, the V-of described USB socket USB1 holds ground connection.
4. a kind of multi-output switch power source circuit as claimed in claim 1, it is characterized in that: described circuit of reversed excitation comprises interchange and turns DC circuit, described PWM controller comprises switch element, the positive output end that described interchange turns DC circuit is connected with one end of the primary coil of described transformer, the other end of the primary coil of described transformer is connected with one end of described switch element, and the negative output terminal that the other end and the described interchange of described switch element turn DC circuit is connected.
5. a kind of multi-output switch power source circuit as claimed in claim 4, is characterized in that: the field effect transistor Q1 of described switch element to be model be SMK7N60.
6. a kind of multi-output switch power source circuit as claimed in claim 1, is characterized in that: described PWM controller comprises chip U1, and the model of described chip U1 is R7735GGE, and the FB end of described chip U1 is connected with the output of described feedback circuit.
7. a kind of multi-output switch power source circuit as claimed in claim 6, is characterized in that: described feedback circuit comprises optocoupler U2, and the collector electrode of the light-receiving device of described optocoupler U2 is held with the FB of described chip U1 and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230839.4U CN204633626U (en) | 2015-04-17 | 2015-04-17 | A kind of multi-output switch power source circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230839.4U CN204633626U (en) | 2015-04-17 | 2015-04-17 | A kind of multi-output switch power source circuit |
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| Publication Number | Publication Date |
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| CN204633626U true CN204633626U (en) | 2015-09-09 |
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|---|---|---|---|
| CN201520230839.4U Expired - Fee Related CN204633626U (en) | 2015-04-17 | 2015-04-17 | A kind of multi-output switch power source circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633942A (en) * | 2016-01-26 | 2016-06-01 | 四川长虹电器股份有限公司 | Low-voltage DC household intelligent power supply system |
| CN105871040A (en) * | 2016-05-18 | 2016-08-17 | 深圳宝砾微电子有限公司 | AC (alternating current)-DC (direct current) flyback charging circuit and charger |
-
2015
- 2015-04-17 CN CN201520230839.4U patent/CN204633626U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633942A (en) * | 2016-01-26 | 2016-06-01 | 四川长虹电器股份有限公司 | Low-voltage DC household intelligent power supply system |
| CN105633942B (en) * | 2016-01-26 | 2018-05-08 | 四川长虹电器股份有限公司 | A kind of low-voltage direct home intelligent electric power system |
| CN105871040A (en) * | 2016-05-18 | 2016-08-17 | 深圳宝砾微电子有限公司 | AC (alternating current)-DC (direct current) flyback charging circuit and charger |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20190417 |