CN210348295U - Novel voltage stabilizing module - Google Patents
Novel voltage stabilizing module Download PDFInfo
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- CN210348295U CN210348295U CN201921477375.1U CN201921477375U CN210348295U CN 210348295 U CN210348295 U CN 210348295U CN 201921477375 U CN201921477375 U CN 201921477375U CN 210348295 U CN210348295 U CN 210348295U
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- voltage stabilizing
- stabilizing circuit
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Abstract
The utility model belongs to the technical field of voltage stabilizing circuit technique and specifically relates to a novel voltage stabilizing module, including integrated switch voltage stabilizing circuit and the linear voltage stabilizing circuit who sets up, the input converts 3.3V direct current voltage output in linear voltage stabilizing circuit after the step-down of switch voltage stabilizing circuit is advanced to outside direct current voltage, switch voltage stabilizing circuit's output is established ties and is had resistance one, resistance through resistance one is adjusted, realize switch voltage stabilizing circuit's output terminal voltage output and adjust, linear voltage stabilizing circuit's output is established ties and is had resistance two, resistance through resistance two is adjusted, realize linear voltage stabilizing circuit's output terminal voltage output and adjust, the utility model discloses realize the voltage range of dual output function and constant voltage power supply.
Description
Technical Field
The utility model relates to a voltage stabilizing circuit technical field, concrete field is a novel voltage stabilizing module.
Background
The regulated power supply module is used as a main electronic circuit power supply module and needs stable power output and power supply voltage regulation capability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel voltage stabilizing module to solve the unstable problem of constant voltage power supply voltage output among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel voltage stabilizing module, including integrated switch voltage stabilizing circuit and the linear voltage stabilizing circuit who sets up, outside direct current voltage advances to convert 3.3V direct current voltage output in the linear voltage stabilizing circuit after switch voltage stabilizing circuit steps down, switch voltage stabilizing circuit's output is established ties there is resistance one, resistance through resistance one is adjusted, realize switch voltage stabilizing circuit's output terminal voltage output regulation, linear voltage stabilizing circuit's output is established ties there is resistance two, resistance through resistance two is adjusted, realize linear voltage stabilizing circuit's output terminal voltage output regulation.
Preferably, the switching regulator circuit is a TPS82130 type buck converter, and the first resistor is connected in series to an output terminal of the buck converter.
Preferably, the linear voltage stabilizing circuit is an ADP1755 type positive linear voltage regulator, the output end of the buck converter is connected with the input end of the positive linear voltage regulator through a first resistor, and the second resistor is connected in series with the output end of the positive linear voltage regulator.
Compared with the prior art, the beneficial effects of the utility model are that:
the method comprises the following steps of 1, DC/DC conversion and double output, wherein the output voltage can be adjusted within a range of 1.2-3.9V through a feedback end;
2. the input range is wide, and is 4-15V;
3. the output efficiency is high, when the input/output pressure difference is larger, the efficiency can reach more than 80 percent, and the power loss can be effectively reduced;
4. the output ripple is small, and the output ripple voltage is less than 5 mV..
Drawings
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a schematic diagram of an integrated module according to the present invention;
fig. 3 is a schematic circuit diagram 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.
Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a novel voltage stabilizing module, including integrated switch voltage stabilizing circuit and the linear voltage stabilizing circuit who sets up, outside direct current voltage advances to convert 3.3V direct current voltage output in the linear voltage stabilizing circuit after switch voltage stabilizing circuit steps down, switch voltage stabilizing circuit's output is established ties there is resistance one, resistance through resistance one is adjusted, realize switch voltage stabilizing circuit's output terminal voltage output regulation, linear voltage stabilizing circuit's output is established ties there is resistance two, resistance through resistance two is adjusted, realize linear voltage stabilizing circuit's output terminal voltage output regulation.
The switching voltage stabilizing circuit is a TPS82130 type buck converter, and the first resistor is connected to the output end of the buck converter in series.
The linear voltage stabilizing circuit is an ADP1755 type positive linear voltage stabilizer, the output end of the voltage reduction converter is connected with the input end of the positive linear voltage stabilizer through a first resistor, and a second resistor is connected to the output end of the positive linear voltage stabilizer in series.
Through the technical scheme, as shown in fig. 1 and 2, the working principle is as follows: the direct current voltage sent by the pin 1 is converted into 3.6V direct current voltage through the switching voltage stabilizing circuit, and then is converted into 3.3V direct current voltage through the linear voltage stabilizing circuit to be output. The first adjusting resistor R1 can adjust the voltage of the output 1, and the second adjusting resistor R2 can adjust the voltage of the output 2.
As shown in fig. 3, pins 1 and 2 of the TPS82130 type buck converter are connected to the anode of an external dc power supply, pin 3 is connected to the cathode of the external dc power supply, pins 4 and 5 are connected to a resistor R7 and then output as an output 1 interface, and output is connected to pins 1, 2, 3, 4, 15 and 16 of the ADP1755 type positive linear regulator;
after the 4 and 5 pins of the TPS82130 type buck converter are connected in series, the series lead is connected in parallel with capacitors C3, C4 and C5, meanwhile, the other ends of the capacitors C3, C4 and C5 are grounded, resistors R2 and R3 are connected in parallel between the 5 pin and the 6 pin, a capacitor C2 and a resistor R1 are connected in series between the 6 pin and the 8 pin, meanwhile, the 8 pin is grounded after passing through the capacitor C2, and a capacitor C6 is connected in series between the connection point between the resistor R7 and the output 1 interface and the ground terminal;
the 6 pins of the ADP1755 type positive linear voltage regulator are grounded, meanwhile, the 6 pins and the 7 pins are connected in series through a capacitor C7, the 10 pins, the 11 pins, the 12 pins, the 13 pins and the 14 pins are connected in series to form an output 2 interface, the output 2 interface is connected with capacitors C8 and C9 which are connected to the ground in parallel, a resistor R5 and a resistor R6 are connected in series between the output 2 interface and the 9 pins in parallel, and the 9 pins are connected in series with the R4 and then grounded.
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 (3)
1. The utility model provides a novel voltage stabilizing module which characterized in that: the output end of the linear voltage stabilizing circuit is connected in series with a second resistor, and the output end of the linear voltage stabilizing circuit is connected in series with the resistance value of the second resistor to realize output voltage output regulation of the linear voltage stabilizing circuit.
2. The novel voltage stabilizing module according to claim 1, characterized in that: the switching voltage stabilizing circuit is a TPS82130 type buck converter, and the first resistor is connected to the output end of the buck converter in series.
3. The novel voltage stabilizing module according to claim 2, characterized in that: the linear voltage stabilizing circuit is an ADP1755 type positive linear voltage stabilizer, the output end of the voltage reduction converter is connected with the input end of the positive linear voltage stabilizer through a first resistor, and a second resistor is connected to the output end of the positive linear voltage stabilizer in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921477375.1U CN210348295U (en) | 2019-09-06 | 2019-09-06 | Novel voltage stabilizing module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921477375.1U CN210348295U (en) | 2019-09-06 | 2019-09-06 | Novel voltage stabilizing module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210348295U true CN210348295U (en) | 2020-04-17 |
Family
ID=70177208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921477375.1U Active CN210348295U (en) | 2019-09-06 | 2019-09-06 | Novel voltage stabilizing module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210348295U (en) |
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2019
- 2019-09-06 CN CN201921477375.1U patent/CN210348295U/en active Active
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