CN202364121U - Novel power circuit - Google Patents
Novel power circuit Download PDFInfo
- Publication number
- CN202364121U CN202364121U CN2011205257678U CN201120525767U CN202364121U CN 202364121 U CN202364121 U CN 202364121U CN 2011205257678 U CN2011205257678 U CN 2011205257678U CN 201120525767 U CN201120525767 U CN 201120525767U CN 202364121 U CN202364121 U CN 202364121U
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- regulator
- negative pole
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Abstract
The utility model relates to a novel power circuit, belongs to the technical field of low-voltage power circuits, and aims at providing a power circuit capable of driving a multichannel chip module to work. The technical scheme adopted by the utility model is as follows: the positive pole of a battery BT1 is connected with the positive pole of a diode D1; the negative pole of the diode D1 is connected with a pin 1 of a switch voltage regulator; the pin 1 of the switch voltage regulator is connected with one end of a capacitor C1; a pin 4 of the switch voltage regulator is connected with one end of a resistor R1 in parallel and then is connected with one end of a variable resistor R2; a pin 2 of the switch voltage regulator is connected with the negative pole of a voltage-regulator diode D2 in parallel and then is connected with one end of an inductor L1; the other end of the inductor L1 is connected with one end of a capacitor C2 and the other end of the resistor R1 in parallel and then is connected with the positive pole of a capacitor C3; and the positive pole of the capacitor C3 is a +4.2V power output port. The novel power circuit is applicable to the field of chip control circuits.
Description
Technical field
A kind of novel power supply circuit of the utility model belongs to the low-voltage power circuit technical field.
Background technology
Along with the development of electronic industrial technology, single-chip microcomputer uses functions of modules more and more, because it is different to drive the supply voltage of each module built-in chip, makes the low-voltage power supply circuit to inside circuit require increasingly high; The chip internal power circuit of current use provides power supply very limited, and is very easy to the phase mutual interference between the plurality of voltages that provides, and the voltage of power output end output is very unstable, can't make the chip operate as normal, even can damage chip; The common volume of module that adopts the multiple power supplies circuit to be provided with is bigger, moves transportation inconvenience, and manufacturing cost is very high.
The utility model content
The utility model overcomes the deficiency that prior art exists, and technical problem to be solved is: a kind of power circuit that can drive the work of multichannel chip module is provided.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of novel power supply circuit comprises: switching regulator, first three terminal regulator and second three terminal regulator; The positive pole of battery BT1 links to each other with the positive pole of diode D1; The negative pole of diode D1 links to each other with 1 pin of switching regulator; 1 pin of said switching regulator links to each other with an end of capacitor C 1; Link to each other with the end of variable resistor R2 behind 4 pin of switching regulator and the end of connecting resistance R1,2 pin of switching regulator and connect the negative pole of voltage stabilizing didoe D2 after link to each other with an end of inductance L 1; The other end of said inductance L 1 and connect the other end of an end and resistance R 1 of capacitor C 2 after link to each other with the positive pole of capacitor C 3, said capacitor C 3 just very+the 4.2V output port of power source; The other end of said capacitor C 1 successively and connect ground connection behind the other end of negative pole and variable resistor R2 of the other end, capacitor C 3 of positive pole, the capacitor C 2 of 3 pin, 5 pin, the voltage stabilizing didoe D2 of switching regulator;
One end of resistance R 3 and connect 1 pin of an end and first three terminal regulator of capacitor C 4 after link to each other with the positive pole of battery BT1, the other end of said resistance R 3 links to each other with the positive pole of diode D3; 3 pin of said first three terminal regulator and the anodal back that connects an end and the capacitor C 6 of capacitor C 5 link to each other with 1 pin of second three terminal regulator, said capacitor C 6 just very+the 5V output port of power source; 3 pin of second three terminal regulator and connect an end of capacitor C 7 after link to each other with the positive pole of capacitor C 8; Said capacitor C 8 just very+the 3.3V output port of power source; The negative pole of said battery BT1 successively and connect ground connection behind the negative pole of the other end and capacitor C 8 of 2 pin, capacitor C 7 of negative pole, second three terminal regulator of the other end, the capacitor C 6 of 2 pin, the capacitor C 5 of the other end, first three terminal regulator of negative pole, the capacitor C 4 of diode D3.
The utility model compared with prior art has following beneficial effect:
One, the utility model provides three tunnel pressure values different low-voltage dc power supplies through one group of power circuit, can satisfy the driving of multifunction chip in one or more groups modular circuit and use, and guarantees the monolithic function operate as normal of built-in many group multifunction modules;
Two, the utility model adopts pressurizer, filter capacitor and diode that battery supply output is processed into multiple low-voltage DC, and formation voltage is accurately stable, and the output voltage high efficient and reliable is guaranteed by the operate as normal of chip for driving circuit;
Three, whole circuit construction of electric power is simple, and integrated being built in the entire chip module avoided repeating to make and repeating built-inly of multiple power supplies circuit, makes entire chip circuit volume less, conveniently moves transportation, practices thrift manufacturing cost.
Description of drawings
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation.
Fig. 1 is the electrical block diagram of the utility model;
Among the figure: 1 is that switching regulator, 2 is that first three terminal regulator, 3 is second three terminal regulator.
Embodiment
As shown in Figure 1, a kind of novel power supply circuit comprises: switching regulator 1, first three terminal regulator 2 and second three terminal regulator 3; The positive pole of battery BT1 links to each other with the positive pole of diode D1; The negative pole of diode D1 links to each other with 1 pin of switching regulator 1; 1 pin of said switching regulator 1 links to each other with an end of capacitor C 1; Link to each other with the end of variable resistor R2 behind 4 pin of switching regulator 1 and the end of connecting resistance R1,2 pin of switching regulator 1 and connect the negative pole of voltage stabilizing didoe D2 after link to each other with an end of inductance L 1; The other end of said inductance L 1 and connect the other end of an end and resistance R 1 of capacitor C 2 after link to each other with the positive pole of capacitor C 3, said capacitor C 3 just very+the 4.2V output port of power source; The other end of said capacitor C 1 successively and connect ground connection behind the other end of negative pole and variable resistor R2 of the other end, capacitor C 3 of positive pole, the capacitor C 2 of 3 pin, 5 pin, the voltage stabilizing didoe D2 of switching regulator 1;
One end of resistance R 3 and connect 1 pin of an end and first three terminal regulator 2 of capacitor C 4 after link to each other with the positive pole of battery BT1, the other end of said resistance R 3 links to each other with the positive pole of diode D3; 3 pin of said first three terminal regulator 2 and the anodal back that connects an end and the capacitor C 6 of capacitor C 5 link to each other with 1 pin of second three terminal regulator 3, said capacitor C 6 just very+the 5V output port of power source; 3 pin of second three terminal regulator 3 and connect an end of capacitor C 7 after link to each other with the positive pole of capacitor C 8; Said capacitor C 8 just very+the 3.3V output port of power source; The negative pole of said battery BT1 successively and connect ground connection behind the negative pole of the other end and capacitor C 8 of 2 pin, capacitor C 7 of negative pole, second three terminal regulator 3 of the other end, the capacitor C 6 of 2 pin, the capacitor C 5 of the other end, first three terminal regulator 2 of negative pole, the capacitor C 4 of diode D3.
In the utility model; Supply power by battery BT1; Through obtaining the low pressure out-put supply of voltage behind switching regulator and voltage stabilizing inductance, the electric capacity for+4.2V; Obtain the low pressure out-put supply of voltage through first three terminal regulator, obtain the low pressure out-put supply of voltage for+3.3V through first three terminal regulator and second three terminal regulator for+5V; Each electric capacity and diode play the filter action of handing at a distance from straight-through in the circuit, can make output obtain stable low-voltage DC, and each road out-put supply port drives pin with each functional module chip and is connected, and guarantees each chip driven work.
Combine accompanying drawing that the utility model has been done detailed description above, but the utility model is not limited to the foregoing description, in the ken that those of ordinary skills possessed, can also under the prerequisite that does not break away from the utility model aim, makes various variations.
Claims (1)
1. a novel power supply circuit comprises: switching regulator (1), first three terminal regulator (2) and second three terminal regulator (3); It is characterized in that: the positive pole of battery BT1 links to each other with the positive pole of diode D1; The negative pole of diode D1 links to each other with 1 pin of switching regulator (1); 1 pin of said switching regulator (1) links to each other with an end of capacitor C 1; Link to each other with the end of variable resistor R2 behind 4 pin of switching regulator (1) and the end of connecting resistance R1,2 pin of switching regulator (1) and connect the negative pole of voltage stabilizing didoe D2 after link to each other with an end of inductance L 1; The other end of said inductance L 1 and connect the other end of an end and resistance R 1 of capacitor C 2 after link to each other with the positive pole of capacitor C 3, said capacitor C 3 just very+the 4.2V output port of power source; The other end of said capacitor C 1 successively and connect ground connection behind the other end of negative pole and variable resistor R2 of the other end, capacitor C 3 of positive pole, the capacitor C 2 of 3 pin, 5 pin, the voltage stabilizing didoe D2 of switching regulator (1);
One end of resistance R 3 and connect 1 pin of an end and first three terminal regulator (2) of capacitor C 4 after link to each other with the positive pole of battery BT1, the other end of said resistance R 3 links to each other with the positive pole of diode D3; 3 pin of said first three terminal regulator (2) and the anodal back that connects an end and the capacitor C 6 of capacitor C 5 link to each other with 1 pin of second three terminal regulator (3), said capacitor C 6 just very+the 5V output port of power source; 3 pin of second three terminal regulator (3) and connect an end of capacitor C 7 after link to each other with the positive pole of capacitor C 8; Said capacitor C 8 just very+the 3.3V output port of power source; The negative pole of said battery BT1 successively and connect ground connection behind the negative pole of the other end and capacitor C 8 of 2 pin, capacitor C 7 of negative pole, second three terminal regulator (3) of the other end, the capacitor C 6 of 2 pin, the capacitor C 5 of the other end, first three terminal regulator (2) of negative pole, the capacitor C 4 of diode D3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205257678U CN202364121U (en) | 2011-12-15 | 2011-12-15 | Novel power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205257678U CN202364121U (en) | 2011-12-15 | 2011-12-15 | Novel power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202364121U true CN202364121U (en) | 2012-08-01 |
Family
ID=46575277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205257678U Expired - Fee Related CN202364121U (en) | 2011-12-15 | 2011-12-15 | Novel power circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202364121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522893A (en) * | 2011-12-15 | 2012-06-27 | 杨长存 | Novel power supply circuit |
-
2011
- 2011-12-15 CN CN2011205257678U patent/CN202364121U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522893A (en) * | 2011-12-15 | 2012-06-27 | 杨长存 | Novel power supply circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20121215 |