CN104320008A - Adjustable direct current stabilized power supply circuit - Google Patents
Adjustable direct current stabilized power supply circuit Download PDFInfo
- Publication number
- CN104320008A CN104320008A CN201410627803.XA CN201410627803A CN104320008A CN 104320008 A CN104320008 A CN 104320008A CN 201410627803 A CN201410627803 A CN 201410627803A CN 104320008 A CN104320008 A CN 104320008A
- Authority
- CN
- China
- Prior art keywords
- voltage
- electric capacity
- transformer
- capacitor
- carried out
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The invention discloses an adjustable direct current stabilized power supply circuit. The adjustable direct current stabilized power supply circuit comprises an alternating current power supply, a transformer, a bridge rectifier, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a diode, a three-end voltage stabilizing integrated chip, a voltage stabilizing diode, a first resistor, a second resistor, a voltmeter and a potentiometer. After the alternating voltage is reduced through the transformer, two paths of different alternating voltages are generated on a first secondary coil and a second secondary coil of the transformer respectively, one path of the alternating voltage is output after rectifying is carried out through the bridge rectifier, filtering is carried out through the first capacitor and the third capacitor, and voltage stabilizing is carried out through the three-end voltage stabilizing integrated chip, and the other path of the alternating voltage is added to a voltage adjusting end of the three-end voltage stabilizing integrated chip through the potentiometer after rectifying is carried out through the diode, filtering is carried out through the second capacitor, current limiting and voltage reducing are carried out through the first resistor and voltage stabilizing is carried out through the voltage stabilizing diode. The voltage is stably output within a certain range through a small number of elements, the circuit structure is simple, cost is low, and adjustment is facilitated.
Description
Technical field
The present invention relates to a kind of voltage-stabilized power supply circuit, particularly relate to a kind of adjustable DC-stabilized circuit.
Background technology
Along with society burns the wind, power consumption equipment grows with each passing day, unstable voltage can cause mortal injury or misoperation to equipment, impact is produced, many-sided loss such as cause incur loss through delay delivery date, quality is unstable, simultaneously acceleration equipment aging, affect and even burn accessory useful life, puzzlement owner being faced need repairing or will update the equipment in a short time, waste resource, even there is security incident in severe patient, causes immeasurable loss.The problem that the use of stabilized voltage power supply is such for people solve, but traditional voltage-stabilized power supply circuit complicated structure, cost is higher, and is not easy to regulate.
Summary of the invention
Object of the present invention is just to provide a kind of adjustable DC-stabilized circuit to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of adjustable DC-stabilized circuit, comprise AC power, transformer, bridge rectifier, first electric capacity is to the 4th electric capacity, diode, three-terminal voltage-stabilizing integrated chip, voltage stabilizing didoe, first resistance, second resistance, voltmeter and potentiometer, the first end of described AC power is connected with the first end of the primary coil of described transformer, second end of described AC power is connected with the second end of the primary coil of described transformer, the first end of the first secondary coil of described transformer is connected with the first voltage end of described bridge rectifier, second end of the first secondary coil of described transformer is connected with the second voltage end of described bridge rectifier, the positive pole of described bridge rectifier respectively with the first end of described first electric capacity, the first end of described 3rd electric capacity is connected with the voltage input end of described three-terminal voltage-stabilizing integrated chip, the negative pole of described bridge rectifier respectively with the first end of the second subprime coil of described transformer, second end of described first electric capacity, second end of described 3rd electric capacity, the first end of described second electric capacity, the negative pole of described voltage stabilizing didoe, the first end of described 4th electric capacity, the negative input of described voltmeter is connected with the first voltage output end of described power circuit, second end of described second electric capacity is connected with the positive pole of described diode and the first end of described first resistance respectively, the negative pole of described diode is connected with the second end of the second subprime coil of described transformer, second end of described first resistance is connected with the positive pole of described voltage stabilizing didoe and the first end of described potentiometer respectively, second end of described potentiometer respectively with the sliding end of described potentiometer, the first end of described second resistance is connected with the voltage-regulation end of described three-terminal voltage-stabilizing integrated chip, second end of described second resistance respectively with the voltage output end of described three-terminal voltage-stabilizing integrated chip, second end of described 4th electric capacity, the electrode input end of described voltmeter is connected with the second voltage output end of described power circuit.
Beneficial effect of the present invention is:
The present invention is a kind of adjustable DC-stabilized circuit, and utilize less components and parts to achieve voltage stable output within the specific limits, circuit structure is fairly simple, cost lower and be convenient to regulate.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of adjustable DC-stabilized circuit of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, a kind of adjustable DC-stabilized circuit of the present invention, comprises AC power AC, transformer T, bridge rectifier BR, first electric capacity C1 is to the 4th electric capacity C4, diode D, three-terminal voltage-stabilizing integrated chip IC, voltage stabilizing didoe DW, first resistance R1, second resistance R2, voltmeter V and potentiometer RP, the first end of AC power AC is connected with the first end of the primary coil of transformer T, second end of AC power AC is connected with the second end of the primary coil of transformer T, the first end of first secondary coil of transformer T is connected with first voltage end of bridge rectifier BR, second end of first secondary coil of transformer T is connected with second voltage end of bridge rectifier BR, the positive pole of bridge rectifier BR respectively with the first end of the first electric capacity C1, the first end of the 3rd electric capacity C3 is connected with the voltage input end of three-terminal voltage-stabilizing integrated chip IC, the negative pole of bridge rectifier BR respectively with the first end of the second subprime coil of transformer T, second end of the first electric capacity C1, second end of the 3rd electric capacity C3, the first end of the second electric capacity C2, the negative pole of voltage stabilizing didoe DW, the first end of the 4th electric capacity C4, the negative input of voltmeter V is connected with the first voltage output end of power circuit, second end of the second electric capacity C2 is connected with the positive pole of diode D and the first end of the first resistance R1 respectively, the negative pole of diode D is connected with the second end of the second subprime coil of transformer T, second end of the first resistance R1 is connected with the positive pole of voltage stabilizing didoe DW and the first end of potentiometer RP respectively, second end of potentiometer RP respectively with the sliding end of potentiometer RP, the first end of the second resistance R2 is connected with the voltage-regulation end of three-terminal voltage-stabilizing integrated chip IC, second end of the second resistance R2 respectively with the voltage output end of three-terminal voltage-stabilizing integrated chip IC, second end of the 4th electric capacity C4, the electrode input end of voltmeter V is connected with the second voltage output end of power circuit.
The model of three-terminal voltage-stabilizing integrated chip IC is LM317.Alternating voltage is after transformer T step-down, first secondary coil and the second subprime coil of transformer T produce the different alternating voltage of two-way respectively, wherein a road alternating voltage is through bridge rectifier BR rectification, export after first electric capacity C1 and the 3rd electric capacity C3 filtering and three-terminal voltage-stabilizing integrated chip IC voltage stabilizing, another road alternating voltage, after diode rectification, the second electric capacity C2 filtering, the first resistance R1 current limliting step-down and voltage stabilizing didoe DW voltage stabilizing, is added in by potentiometer RP on the voltage-regulation end of three-terminal voltage-stabilizing integrated chip IC.The resistance of adjustment potentiometer RP, can make the voltage output end output voltage of three-terminal voltage-stabilizing integrated chip IC change within the specific limits.
Claims (1)
1. an adjustable DC-stabilized circuit, it is characterized in that: comprise AC power, transformer, bridge rectifier, first electric capacity is to the 4th electric capacity, diode, three-terminal voltage-stabilizing integrated chip, voltage stabilizing didoe, first resistance, second resistance, voltmeter and potentiometer, the first end of described AC power is connected with the first end of the primary coil of described transformer, second end of described AC power is connected with the second end of the primary coil of described transformer, the first end of the first secondary coil of described transformer is connected with the first voltage end of described bridge rectifier, second end of the first secondary coil of described transformer is connected with the second voltage end of described bridge rectifier, the positive pole of described bridge rectifier respectively with the first end of described first electric capacity, the first end of described 3rd electric capacity is connected with the voltage input end of described three-terminal voltage-stabilizing integrated chip, the negative pole of described bridge rectifier respectively with the first end of the second subprime coil of described transformer, second end of described first electric capacity, second end of described 3rd electric capacity, the first end of described second electric capacity, the negative pole of described voltage stabilizing didoe, the first end of described 4th electric capacity, the negative input of described voltmeter is connected with the first voltage output end of described power circuit, second end of described second electric capacity is connected with the positive pole of described diode and the first end of described first resistance respectively, the negative pole of described diode is connected with the second end of the second subprime coil of described transformer, second end of described first resistance is connected with the positive pole of described voltage stabilizing didoe and the first end of described potentiometer respectively, second end of described potentiometer respectively with the sliding end of described potentiometer, the first end of described second resistance is connected with the voltage-regulation end of described three-terminal voltage-stabilizing integrated chip, second end of described second resistance respectively with the voltage output end of described three-terminal voltage-stabilizing integrated chip, second end of described 4th electric capacity, the electrode input end of described voltmeter is connected with the second voltage output end of described power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627803.XA CN104320008A (en) | 2014-11-07 | 2014-11-07 | Adjustable direct current stabilized power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627803.XA CN104320008A (en) | 2014-11-07 | 2014-11-07 | Adjustable direct current stabilized power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104320008A true CN104320008A (en) | 2015-01-28 |
Family
ID=52375205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410627803.XA Pending CN104320008A (en) | 2014-11-07 | 2014-11-07 | Adjustable direct current stabilized power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104320008A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683240A (en) * | 2018-06-26 | 2018-10-19 | 国网北京市电力公司 | DC charging method, apparatus and system |
| CN110794908A (en) * | 2019-10-10 | 2020-02-14 | 天津大学 | Voltage source for bias superconducting nanowire single-photon detector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08126314A (en) * | 1994-10-25 | 1996-05-17 | Nissin Electric Co Ltd | Multi-output controlled power supply |
| CN101132153A (en) * | 2006-08-24 | 2008-02-27 | 杜凤鸣 | Multifunctional power supply |
| CN101577500A (en) * | 2009-05-05 | 2009-11-11 | 武汉科技大学 | Regulated power supply used for hydraulic servo controller |
| CN203573241U (en) * | 2013-11-25 | 2014-04-30 | 成都麦客堂信息技术有限公司 | Voltage-stabilizing adjustable power circuit of computer |
-
2014
- 2014-11-07 CN CN201410627803.XA patent/CN104320008A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08126314A (en) * | 1994-10-25 | 1996-05-17 | Nissin Electric Co Ltd | Multi-output controlled power supply |
| CN101132153A (en) * | 2006-08-24 | 2008-02-27 | 杜凤鸣 | Multifunctional power supply |
| CN101577500A (en) * | 2009-05-05 | 2009-11-11 | 武汉科技大学 | Regulated power supply used for hydraulic servo controller |
| CN203573241U (en) * | 2013-11-25 | 2014-04-30 | 成都麦客堂信息技术有限公司 | Voltage-stabilizing adjustable power circuit of computer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683240A (en) * | 2018-06-26 | 2018-10-19 | 国网北京市电力公司 | DC charging method, apparatus and system |
| CN110794908A (en) * | 2019-10-10 | 2020-02-14 | 天津大学 | Voltage source for bias superconducting nanowire single-photon detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106655431B (en) | Automatic current regulation charger circuit | |
| CN202906767U (en) | Switching power supply with continuously adjustable output voltage | |
| CN104320008A (en) | Adjustable direct current stabilized power supply circuit | |
| CN204013260U (en) | A kind of adjustable voltage-stabilized source | |
| CN204578382U (en) | A kind of single-chip switching stabilized voltage power supply | |
| CN204518191U (en) | A kind of Light control road lamp circuit | |
| CN104836316B (en) | A kind of constant-current charging circuit of adjustable current | |
| CN203552558U (en) | Electronic-type standard cell | |
| CN204068742U (en) | Low-power power adapter drive circuit | |
| CN203522560U (en) | Stabilized voltage supply circuit of rotary drum vacuum filter for sludge treatment | |
| CN204597798U (en) | A kind of small-sized voltage-stabilized power supply circuit | |
| CN204069440U (en) | The LED constant current of tool former limit feedback single stage PFC controls drive circuit | |
| CN205427683U (en) | Intelligent direct -current stabilized power supply | |
| CN204190974U (en) | Single-stage PFC isolated form former limit feedback LED Drive and Control Circuit | |
| CN205986663U (en) | Interim power with adjustable | |
| CN204442190U (en) | A kind of doubleway output step-down controller circuit | |
| CN203193505U (en) | Integrated low-voltage stabilized voltage power supply | |
| CN203522538U (en) | Adjustable DC voltage-stabilizing power circuit | |
| CN104779653A (en) | Charging indicating circuit | |
| CN204119060U (en) | Online integrated one chip linear stabilized power supply | |
| CN204156740U (en) | A kind of constant current regulated power supply circuit of driving LED lamp | |
| CN204349821U (en) | The integrated power supply of high reliability | |
| CN203747677U (en) | Power supply device suitable for pulse output load | |
| CN203872072U (en) | Multiple-output switching DC stabilized power supply with simple circuit | |
| CN203872058U (en) | DC power supply conversion circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |
|
| WD01 | Invention patent application deemed withdrawn after publication |