CN214256153U - Power adapter with auxiliary power supply circuit - Google Patents
Power adapter with auxiliary power supply circuit Download PDFInfo
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- CN214256153U CN214256153U CN202023106367.1U CN202023106367U CN214256153U CN 214256153 U CN214256153 U CN 214256153U CN 202023106367 U CN202023106367 U CN 202023106367U CN 214256153 U CN214256153 U CN 214256153U
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Abstract
The utility model belongs to the technical field of power adapter, especially, relate to a power adapter of auxiliary power supply circuit, including auxiliary power supply circuit, auxiliary power supply circuit and an outside power supply unit connection still include: the Bluetooth device comprises an electric quantity counting circuit, an optical coupling isolation circuit, a Bluetooth main control circuit and an output power adjusting circuit, wherein the Bluetooth main control circuit is connected with the optical coupling isolation circuit, and the output power adjusting circuit is connected with the Bluetooth main control circuit; the auxiliary power supply circuit comprises a first power supply circuit, a second power supply circuit and a third power supply circuit. The utility model discloses a set up auxiliary power supply circuit is connected with the external power supply unit, makes this application power adapter has integrateed auxiliary power supply's function, avoids the exclusive use power supply device, and on the one hand very big degree the cost is reduced improves, and on the other hand convenient to use user uses, has high practicality.
Description
Technical Field
The utility model belongs to the technical field of power adapter, especially, relate to a power adapter with auxiliary power supply circuit.
Background
The power adapter, also called an external power supply, is a power supply voltage conversion device for small portable electronic devices and electronic appliances, and is commonly used in small electronic products such as mobile phones, liquid crystal displays, notebook computers and the like. Most power adapters for notebook computers can be suitable for 100-240V alternating current (50/60 Hz). Basically most notebook computers have external power supplies which are connected with a host by a power line, so that the volume and the weight of the host can be reduced, and the power supplies are embedded in the host only in a few models.
However, the power supply of the current switching power adapter is provided with an independent power supply device, so that the production cost is increased, and inconvenience is brought to consumers in installation or actual use, and the user experience is influenced. Therefore, it is necessary to design a power adapter having an auxiliary power supply circuit.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power adapter with auxiliary power supply circuit aims at solving the switching power supply adapter among the prior art and leads to cost improvement and awkward technical problem because of needs set up the power supply device alone.
In order to achieve the above object, an embodiment of the present invention provides a power adapter of an auxiliary power supply circuit, including the auxiliary power supply circuit, the auxiliary power supply circuit is connected with an external power supply unit, and further includes:
the electric quantity statistical circuit is connected with the auxiliary power supply circuit;
the optical coupling isolation circuit is connected with the auxiliary power supply circuit and the electric quantity counting circuit;
the Bluetooth master control circuit is connected with the optical coupling isolation circuit;
the output power regulating circuit is connected with the Bluetooth master control circuit; the auxiliary power supply circuit comprises a first power supply circuit, a second power supply circuit and a third power supply circuit, wherein the first power supply circuit is connected with an external power supply unit, and the second power supply circuit and the third power supply circuit are both connected with the first power supply circuit; the first power supply circuit is connected with the output power regulating circuit, the second power supply circuit is connected with the electric quantity counting circuit, and the second power supply circuit and the third power supply circuit are connected with the optical coupling isolation circuit.
Optionally, the first power supply circuit includes an ac/dc conversion circuit, a transformer, and an input control circuit, the ac/dc conversion circuit is connected to an external power supply unit, the transformer and the input control circuit are both connected to the ac/dc conversion circuit, and the input control circuit is connected to the transformer.
Optionally, the ac-dc conversion circuit includes a rectifier bridge, the rectifier bridge is connected to the external power supply unit, and the rectifier bridge is further connected to the transformer and the input control circuit.
Optionally, the input control circuit includes an input control chip, and the input control chip is connected to the rectifier bridge and the transformer.
Optionally, the bluetooth master control circuit includes a bluetooth control chip, the bluetooth control chip with supplementary power supply circuit, opto-coupler isolation circuit and output power regulating circuit all connect.
Optionally, the optical coupling isolation circuit includes a fifth optical coupler and a sixth optical coupler, the fifth optical coupler and the power supply end of the sixth optical coupler are connected with the auxiliary power supply circuit, the fifth optical coupler and the input end of the sixth optical coupler are connected with the power statistics circuit, and the fifth optical coupler and the output end of the sixth optical coupler are connected with the bluetooth master control circuit.
Optionally, the electric quantity statistics circuit includes electric quantity statistics chip, the power supply end of electric quantity statistics chip with supplementary power supply circuit connects, the eighth pin of electric quantity statistics chip with the input of sixth opto-coupler is connected, the eighth pin of electric quantity statistics chip with the input of fifth opto-coupler is connected.
Optionally, the electric quantity statistics circuit further includes an input protection filter circuit, and the input protection filter circuit is connected to the electric quantity statistics chip.
The embodiment of the utility model provides an above-mentioned one or more technical scheme in the power adapter with supplementary power supply circuit have one of following technological effect at least:
the utility model is connected with an external power supply unit by arranging the auxiliary power supply circuit, and the second power supply circuit and the third power supply circuit are both connected with the first power supply circuit; make simultaneously first power supply circuit with output regulation circuit connects and for its power supply, second power supply circuit with electric quantity statistics circuit connection and for its power supply, second power supply circuit with third power supply circuit all with opto-coupler isolation circuit connects and for its power supply, thereby makes this application power adapter has integrateed the function of supplementary power supply, avoids the exclusive use power supply device, and on the one hand very big degree has reduced the cost and has improved, and on the other hand is convenient for the user to use, has high practicality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic circuit diagram of a power adapter with an auxiliary power supply circuit according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of an electric quantity statistical circuit according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of an optical coupler and isolator circuit provided in an embodiment of the present invention;
fig. 4 is a circuit schematic diagram of a bluetooth master control circuit provided by an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of an output power regulating circuit according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of an auxiliary power supply circuit according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
the bluetooth master control circuit comprises an auxiliary power supply circuit 100, a first power supply circuit 110, an alternating current-direct current conversion circuit 111, an input control circuit 112, a second power supply circuit 120, a third power supply circuit 130, an electric quantity statistical circuit 200, an input protection filter circuit 210, an optical coupling isolation circuit 300, a bluetooth master control circuit 400, an output power regulating circuit 500, a first operational amplifier circuit 510 and a second operational amplifier circuit 520.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In an embodiment of the present invention, as shown in fig. 1-6, a power adapter of an auxiliary power supply circuit is provided, which includes an auxiliary power supply circuit 100, wherein the auxiliary power supply circuit 100 is connected to an external power supply unit 110.
The power adapter of the auxiliary power supply circuit further comprises an electric quantity statistical circuit 200, an optical coupling isolation circuit 300, a Bluetooth main control circuit 400 and an output power regulating circuit 500.
The power statistics circuit 200 is connected to the auxiliary power supply circuit 100;
the optical coupling isolation circuit 300 is connected with the auxiliary power supply circuit 100 and the electric quantity statistical circuit 200;
the bluetooth master control circuit 400 is connected with the optical coupling isolation circuit 300
The output power adjusting circuit 500 is connected to the bluetooth master control circuit 400.
When the power adapter of auxiliary power supply circuit is using, the user earlier through the bluetooth of the mobile phone with bluetooth master control circuit 400 connects, then, through power statistics circuit 200 detects and makes statistics of the voltage that outside power supply unit provided, passes through the voltage that bluetooth master control circuit 400 will detect after that bluetooth master control circuit 400 sends to user's cell-phone, and opto-coupler isolation circuit 300 does bluetooth master control circuit 400 filtering interference factor, so, make the user pass through the bluetooth alright with realizing the power statistics function, convenience of customers uses, has high practicality.
In another embodiment of the present invention, the external power supply unit is an external power supply terminal in the prior art, such as a plug or a socket, through which the external power supply unit inserts the electric energy into the power adapter of the auxiliary power supply circuit.
In another embodiment of the present invention, as shown in fig. 1-4, the bluetooth master control circuit 400 includes a bluetooth control chip U1, the bluetooth control chip U1 is connected to the auxiliary power supply circuit 100, the optical coupling isolation circuit 300 and the output power adjusting circuit 500. In this embodiment, the chip model of the bluetooth control chip U1 is preferably CSR 1010.
In another embodiment of the utility model, as shown in fig. 1-3, the optical coupling isolation circuit 3300 includes fifth opto-coupler U5 and sixth opto-coupler U6, fifth opto-coupler U5 with the feeder ear of sixth opto-coupler U6 with supplementary power supply circuit 100 connects, fifth opto-coupler U5 with the input of sixth opto-coupler U6 with electric quantity statistics circuit 200 connects, fifth opto-coupler U5 with the output of sixth opto-coupler U6 with bluetooth master control circuit 400 connects. Specifically, through setting up fifth opto-coupler U5 and sixth opto-coupler U6, the signal interference in the transmission process of filtering signal promotes the overall stability of circuit.
In another embodiment of the present invention, as shown in fig. 1-2, the power statistics circuit 200 includes a power statistics chip U3, the power supply terminal of the power statistics chip U3 is connected to the auxiliary power supply circuit 100, the eighth pin of the power statistics chip U3 is connected to the input terminal of the sixth optical coupler U6, and the eighth pin of the power statistics chip U3 is connected to the input terminal of the fifth optical coupler U5. In this embodiment, the model of the power statistics chip U3 is preferably BL 0940.
Specifically, a second pin of the electric quantity statistics chip U3 is connected to an IP1 power supply terminal of the external power supply unit, a third pin of the electric quantity statistics chip U3 is connected to an IN1 power supply terminal of the external power supply unit, and a fourth pin of the electric quantity statistics chip U3 is connected to an N power supply terminal of the external power supply unit. The power detection and statistics of power supply are realized through the IN1 power supply end, the IP1 power supply end and the N power supply end of the external power supply unit.
In another embodiment of the present invention, the power statistics circuit 200 further includes an input protection filter circuit 210, and the input protection filter circuit 210 is connected to the power statistics chip U3.
The input protection filter circuit 210 comprises a plurality of protection resistors, a filter capacitor C1 and a filter resistor R6, the filter capacitor C1 and the filter resistor R6 are connected with the protection resistors, the filter capacitor C1 is connected with the filter resistor R6 in parallel, and the filter capacitor C1 is further connected with a fourth pin of the electric quantity statistics chip U3. In this embodiment, each of the protection resistors is labeled as R1-R5.
In another embodiment of the present invention, as shown in fig. 5, the output power adjusting circuit 500 includes a first operational amplifier circuit 510 and a second operational amplifier circuit 520, the first operational amplifier circuit 510 and the second operational amplifier circuit 520 are both connected to the auxiliary power supply circuit 100, the first operational amplifier circuit 510 is connected to the bluetooth control chip U1, and the second operational amplifier circuit 520 is connected to the first operational amplifier circuit 510.
The first operational amplifier circuit 510 comprises a third operational amplifier U4A, an input end of the third operational amplifier U4A is connected with the bluetooth control chip U1, a power supply end of the third operational amplifier U4A is further connected with the auxiliary power supply circuit 100, and an output end of the third operational amplifier U4A is connected with the second operational amplifier circuit.
The second operational amplifier circuit 520 includes a fourth operational amplifier U4B and a third output port, an input terminal of the fourth operational amplifier U4B is connected to an output terminal of the third operational amplifier U4A, a power supply terminal of the fourth operational amplifier U4B is further connected to the auxiliary power supply circuit 100, and an output terminal of the fourth operational amplifier U4B is connected to a third output port J3.
Specifically, the power supply terminal of the third operational amplifier U4A and the power supply terminal of the fourth operational amplifier U4B are both connected to the auxiliary power supply circuit 100. The power supply end of the third operational amplifier U4A and the positive input end of the fourth operational amplifier U4B are both connected to the fifteenth pin of the Bluetooth control chip U1, the Bluetooth control chip U1 sends an electrical signal through the fifteenth pin thereof, and the electrical signal is amplified by the third operational amplifier U4A and the fourth operational amplifier U4B and then output through a third output port J3, wherein the voltage output by the third output port J3 is 0-10V.
In actual use, the third output port J3 is connected with the controlled electric appliance, and may be a lamp or others, and is specifically limited according to actual use of the person skilled in the art, and the utility model discloses do not specifically limit.
The power supply terminal of the third operational amplifier U4A and the fourth operational amplifier U4B are preferably both LM358DR 2G.
In another embodiment of the present invention, as shown in fig. 1 to 6, the auxiliary power supply circuit 100 includes a first power supply circuit 110, a second power supply circuit 120, and a third power supply circuit 130, the first power supply circuit 110 is connected to an external power supply unit, and both the second power supply circuit 120 and the third power supply circuit 130 are connected to the first power supply circuit 110; the first power supply circuit 110 is connected to the output power adjusting circuit 400, the second power supply circuit 120 is connected to the electric quantity counting circuit 200, and both the second power supply circuit 120 and the third power supply circuit 130 are connected to the optical coupling isolation circuit 300.
The first power supply circuit 110 includes an ac-dc conversion circuit 111, a transformer T1-a, and an input control circuit 112, the ac-dc conversion circuit 111 is connected to an external power supply unit, both the transformer T1-a and the input control circuit 112 are connected to the ac-dc conversion circuit 111, and the input control circuit 112 is connected to the transformer T1-a.
The ac/dc conversion circuit 111 includes a rectifier bridge BD1, the rectifier bridge BD1 is connected to the external power supply unit, and the rectifier bridge BD1 is further connected to the transformer T1-a and the input control circuit 112.
The input control circuit 112 includes an input control chip U7, the input control chip U7 is connected with the rectifier bridge BD1 and the transformer T1-a.
Further, the alternating current provided by the external power supply unit is rectified by the rectifier bridge BD1, passes through the primary winding of the transformer T1-a under the control of the input control chip U7, and is output through the secondary winding, and then the transformer T1-a outputs 12V voltage through a dc power supply terminal 12V 0.
IN an embodiment of the present invention, as shown IN fig. 6, the second power supply circuit 120 includes a second voltage converting chip U2, the input terminal of the second converting chip U2 is connected to the external power input terminals IN1 and N, and the output terminal of the second converting chip U2 outputs 3.3V voltage through a first voltage output terminal + 3.3V-a.
In an embodiment of the present invention, as shown in fig. 6, the third power supply circuit 130 includes a third voltage conversion chip Q2, the input terminal of the third voltage conversion chip Q2 is connected to the output terminal of the first power supply circuit, and the output terminal of the third voltage conversion chip Q2 outputs 3.3V dc power through a second voltage output terminal + 3.3V-D.
It should be noted that the chip models corresponding to the input control chip U7, the second voltage conversion chip U2 and the third voltage conversion chip Q2 are selected by those skilled in the art according to actual needs, as long as the corresponding functions to be realized by the present application can be realized, and therefore, the present invention is not limited specifically.
Further, technical personnel in the field can set up an APP at PC end or cell-phone end, the user pass through the bluetooth with bluetooth control chip U1 connects the back, shows in real time on this APP the electric quantity that electric quantity statistics chip U3 detected and counted to be convenient for avoid checking meter can know the power consumption condition, have high practicality.
It should be noted that, for the software control portion, that is, how the bluetooth control chip U1 controls and is connected with the APP, how the electric quantity statistics chip U3 detects the electric quantity is that the chip model that the skilled person provided according to this application combines actual demand to can program and set by oneself, and this part software control portion is not the key point protected by this application, so compare this application and do not describe again.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A power adapter having an auxiliary power supply circuit, comprising an auxiliary power supply circuit, the auxiliary power supply circuit being connected to an external power supply unit, and further comprising:
the electric quantity statistical circuit is connected with the auxiliary power supply circuit;
the optical coupling isolation circuit is connected with the auxiliary power supply circuit and the electric quantity counting circuit;
the Bluetooth master control circuit is connected with the optical coupling isolation circuit;
the output power regulating circuit is connected with the Bluetooth master control circuit; the auxiliary power supply circuit comprises a first power supply circuit, a second power supply circuit and a third power supply circuit, wherein the first power supply circuit is connected with an external power supply unit, and the second power supply circuit and the third power supply circuit are both connected with the first power supply circuit; the first power supply circuit is connected with the output power regulating circuit, the second power supply circuit is connected with the electric quantity counting circuit, and the second power supply circuit and the third power supply circuit are connected with the optical coupling isolation circuit.
2. The power adapter with the auxiliary power supply circuit according to claim 1, wherein the first power supply circuit includes an ac/dc conversion circuit, a transformer, and an input control circuit, the ac/dc conversion circuit is connected to an external power supply unit, the transformer and the input control circuit are both connected to the ac/dc conversion circuit, and the input control circuit is connected to the transformer.
3. The power adapter with auxiliary power supply circuit of claim 2, wherein said ac to dc conversion circuit includes a rectifier bridge, said rectifier bridge being connected to said external power supply unit, said rectifier bridge also being connected to said transformer and said input control circuit.
4. The power adapter with auxiliary power supply circuit of claim 3, wherein said input control circuit comprises an input control chip, said input control chip being connected to said rectifier bridge and said transformer.
5. The power adapter with the auxiliary power supply circuit according to claim 1, wherein the bluetooth master control circuit includes a bluetooth control chip, and the bluetooth control chip is connected to the auxiliary power supply circuit, the optical coupling isolation circuit and the output power regulating circuit.
6. The power adapter with the auxiliary power supply circuit according to claim 5, wherein the optical coupler isolation circuit comprises a fifth optical coupler and a sixth optical coupler, power supply terminals of the fifth optical coupler and the sixth optical coupler are connected with the auxiliary power supply circuit, input terminals of the fifth optical coupler and the sixth optical coupler are connected with the electric quantity statistic circuit, and output terminals of the fifth optical coupler and the sixth optical coupler are connected with the Bluetooth main control circuit.
7. The power adapter with the auxiliary power supply circuit according to claim 6, wherein the power statistics circuit comprises a power statistics chip, a power supply terminal of the power statistics chip is connected with the auxiliary power supply circuit, an eighth pin of the power statistics chip is connected with an input terminal of the sixth optical coupler, and an eighth pin of the power statistics chip is connected with an input terminal of the fifth optical coupler.
8. The power adapter with the auxiliary power supply circuit according to claim 7, wherein the power statistics circuit further comprises an input protection filter circuit, and the input protection filter circuit is connected with the power statistics chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023106367.1U CN214256153U (en) | 2020-12-21 | 2020-12-21 | Power adapter with auxiliary power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023106367.1U CN214256153U (en) | 2020-12-21 | 2020-12-21 | Power adapter with auxiliary power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214256153U true CN214256153U (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023106367.1U Active CN214256153U (en) | 2020-12-21 | 2020-12-21 | Power adapter with auxiliary power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214256153U (en) |
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2020
- 2020-12-21 CN CN202023106367.1U patent/CN214256153U/en active Active
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