CN202159281U - Linear voltage-adjusting circuit - Google Patents
Linear voltage-adjusting circuit Download PDFInfo
- Publication number
- CN202159281U CN202159281U CN2011202128849U CN201120212884U CN202159281U CN 202159281 U CN202159281 U CN 202159281U CN 2011202128849 U CN2011202128849 U CN 2011202128849U CN 201120212884 U CN201120212884 U CN 201120212884U CN 202159281 U CN202159281 U CN 202159281U
- Authority
- CN
- China
- Prior art keywords
- integrated
- terminal
- regulator block
- utility
- model
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a linear voltage-adjusting circuit, which comprises an integrated three-end voltage stabilization block. A first electrolytic capacitor and an independent capacitor are in bridge connection between an input end of the integrated three-end voltage stabilization block and the ground. The grounding end of the integrated three-end voltage stabilization block is grounded through a filter capacitor. A diode is reversely connected between the input end and an output end of the integrated three-end voltage stabilization block. The output end of the integrated three-end voltage stabilization block is grounded sequentially through a first resistor, a second resistor and a third resistor. A first terminal and a second terminal are connected. A second electrolytic capacitor is connected between the output end of the integrated three-end voltage stabilization block and the ground. The linear voltage-adjusting circuit in the utility model has a simple structure and is convenient to use. Furthermore, the linear voltage-adjusting circuit can output multiple required DC voltages.
Description
Technical field
The utility model relates to a kind of application circuit, concrete relates to a kind of linear voltage regulation circuit.
Background technology
Because prestage acoustics circuit, precision circuit, electronic production etc. are the high precision power supply to power requirement, so need voltage regulation function in the circuit.Linear voltage regulation circuit in the existing circuit is varied of a great variety, but most complex structure, function is complicated; And need export under the application scenario of multiple DC voltage at some, adopt the driving circuit of complicated circuit construction to obtain required voltage often, cost can increase so on the one hand; In addition on the one hand; After circuit structure was in a single day complicated, its labile factor was behind so just reducing product percent of pass virtually also increasing.
The utility model content
For overcoming deficiency of the prior art, the purpose of the utility model is to provide a kind of linear voltage regulation circuit simple in structure.
In order to solve the problems of the technologies described above, realize above-mentioned purpose, the utility model has adopted following technical scheme:
A kind of linear voltage regulation circuit; Comprise integrated three-terminal regulator block; Cross-over connection first electrochemical capacitor and independent capacitance between the input end of said integrated three-terminal regulator block and the ground; The earth terminal of said integrated three-terminal regulator block is through filter capacitor ground connection, and reversal connection diode between the input end of said integrated three-terminal regulator block and the output terminal, the output terminal of said integrated three-terminal regulator block are successively through first resistance, second resistance and the 3rd resistance eutral grounding; First terminals link to each other with second terminals, are connected second electrochemical capacitor between the output terminal of said integrated three-terminal regulator block and the ground.
The course of work of the linear voltage regulation circuit of the utility model is following:
After signal is through electrochemical capacitor and independent capacitance, said integrated three-terminal regulator block will obtain stable input voltage, and said integrated three-terminal regulator block will be exported multiple required DC voltage through regulating first, second resistance of resistance and the 3rd resistance.
The utlity model has following advantage:
The linear voltage regulation circuit of the utility model simple in structure, easy to use obtains multiple required output dc voltage easily.
Above-mentioned explanation only is the general introduction of the utility model technical scheme, in order more to know the technological means of understanding the utility model, and can implement according to the content of instructions, below with the preferred embodiment of the utility model and conjunction with figs. specify as after.The embodiment of the utility model is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Fig. 1 is the circuit theory diagrams of the linear voltage regulation circuit of the utility model.
Label declaration among the figure: 1, first terminals, 2, second terminals.
Embodiment
Below in conjunction with accompanying drawing and embodiment the technology implementation process of the utility model is further specified.
Referring to shown in Figure 1; A kind of linear voltage regulation circuit; Comprise integrated three-terminal regulator block U1, cross-over connection first electrochemical capacitor E1 and independent capacitance C1 between the input end of said integrated three-terminal regulator block U1 and the ground, the earth terminal of said integrated three-terminal regulator block U1 is through filter capacitor C2 ground connection; Reversal connection diode D1 between the input end of said integrated three-terminal regulator block U1 and the output terminal; Through first resistance R 1, second resistance R 2 and the 3rd resistance R 3 ground connection, first terminals 1 link to each other with second terminals 2 output terminal of said integrated three-terminal regulator block U1 successively, are connected the second electrochemical capacitor E2 between the output terminal of said integrated three-terminal regulator block U1 and the ground.
The foregoing description is technical conceive and the characteristics for the utility model is described just, its objective is to be the content that lets the one of ordinary skilled in the art can understand the utility model and to implement according to this, can not limit the protection domain of the utility model with this.The variation or the modification of every equivalence of having done according to the essence of the utility model content all should be encompassed in the protection domain of the utility model.
Claims (1)
1. linear voltage regulation circuit; Comprise integrated three-terminal regulator block (U1); It is characterized in that: cross-over connection first electrochemical capacitor (E1) and independent capacitance (C1) between the input end of said integrated three-terminal regulator block (U1) and the ground; The earth terminal of said integrated three-terminal regulator block (U1) is through filter capacitor (C2) ground connection; Reversal connection diode (D1) between the input end of said integrated three-terminal regulator block (U1) and the output terminal; Through first resistance (R1), second resistance (R2) and the 3rd resistance (R3) ground connection, first terminals (1) link to each other with second terminals (2) output terminal of said integrated three-terminal regulator block (U1) successively, are connected second electrochemical capacitor (E2) between the output terminal of said integrated three-terminal regulator block (U1) and the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202128849U CN202159281U (en) | 2011-06-22 | 2011-06-22 | Linear voltage-adjusting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202128849U CN202159281U (en) | 2011-06-22 | 2011-06-22 | Linear voltage-adjusting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202159281U true CN202159281U (en) | 2012-03-07 |
Family
ID=45766911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202128849U Expired - Fee Related CN202159281U (en) | 2011-06-22 | 2011-06-22 | Linear voltage-adjusting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202159281U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103856075A (en) * | 2012-12-03 | 2014-06-11 | 永济新时速电机电器有限责任公司 | Conversion module based on train auxiliary electrical system and train auxiliary electrical system |
-
2011
- 2011-06-22 CN CN2011202128849U patent/CN202159281U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103856075A (en) * | 2012-12-03 | 2014-06-11 | 永济新时速电机电器有限责任公司 | Conversion module based on train auxiliary electrical system and train auxiliary electrical system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202159281U (en) | Linear voltage-adjusting circuit | |
| CN203522513U (en) | Self-driving synchronous rectification driving circuit suitable for module power source | |
| CN102841622A (en) | Linear voltage regulating circuit | |
| CN202975965U (en) | Direct current voltage converting circuit | |
| CN202907251U (en) | Adjustable voltage stabilization power supply circuit and lamp | |
| CN202166688U (en) | Overvoltage acquisition circuit | |
| CN204496330U (en) | A kind of automobile sensor feed circuit | |
| CN202797947U (en) | Overvoltage protection circuit | |
| CN203205906U (en) | USB charger circuit | |
| CN203967980U (en) | Switching power circuit and supply unit | |
| CN202797946U (en) | Overvoltage protection circuit | |
| CN102843034A (en) | DC-DC booster circuit | |
| CN201876496U (en) | Phase detection circuit | |
| CN204290706U (en) | The power supply that a kind of RS232 signal drives | |
| CN203491907U (en) | Voltage-regulator tube power supply applied to router | |
| CN202797879U (en) | Overvoltage protection circuit | |
| CN202797956U (en) | Overvoltage protection circuit | |
| CN102841534A (en) | Clock circuit | |
| CN202797951U (en) | Overvoltage protection circuit | |
| CN202797952U (en) | Overvoltage protection circuit | |
| CN204190744U (en) | A kind of power isolation circuit | |
| CN204696680U (en) | A kind of overvoltage for sensitive circuit and power source reverse connection protection circuit | |
| CN203287809U (en) | High-precision negative feedback power circuit | |
| CN202153237U (en) | Motor over-current detection circuit | |
| CN201967225U (en) | Novel common-mode anti-interference circuit |
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: 20120307 Termination date: 20120622 |