CN102841622A - Linear voltage regulating circuit - Google Patents
Linear voltage regulating circuit Download PDFInfo
- Publication number
- CN102841622A CN102841622A CN 201110169407 CN201110169407A CN102841622A CN 102841622 A CN102841622 A CN 102841622A CN 201110169407 CN201110169407 CN 201110169407 CN 201110169407 A CN201110169407 A CN 201110169407A CN 102841622 A CN102841622 A CN 102841622A
- Authority
- CN
- China
- Prior art keywords
- integrated
- regulator block
- linear voltage
- stabilizing block
- terminal regulator
- 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
Images
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
The invention discloses a linear voltage regulating circuit which comprises an integrated three-end voltage stabilizing block, wherein a first electrolytic capacitor and an independent capacitor are spanned between the input end of the integrated three-end voltage stabilizing block and the ground; the grounding end of the integrated three-end voltage stabilizing block is grounded through a filter capacitor; a diode is reversely connected between the input end and the output end of the integrated three-end voltage stabilizing block; the output end of the integrated three-end voltage stabilizing block is grounded through a first resistor, a second resistor and a third resistor in sequence; a first wiring terminal is connected with a second wiring terminal; and a second electrolytic capacitor is connected between the output end of the integrated three-end voltage stabilizing block and the ground. The linear voltage regulating circuit has a simple structure, and is convenient to use. With the adoption of the linear voltage regulating circuit, various direct-current voltages can be output as required.
Description
Technical field
The present invention relates to a kind of application circuit, concrete relate 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.
Summary of the invention
For overcoming deficiency of the prior art, the object of the present invention 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 present invention 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 linear voltage regulation circuit of the present invention 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 present invention has the following advantages:
Linear voltage regulation circuit of the present invention simple in structure, easy to use obtains multiple required output dc voltage easily.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of instructions, below with preferred embodiment of the present invention and conjunction with figs. specify as after.Embodiment of the present invention is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Fig. 1 is the circuit theory diagrams of linear voltage regulation circuit of the present invention.
Label declaration among the figure: 1, first terminals, 2, second terminals.
Embodiment
Below in conjunction with accompanying drawing and embodiment technology implementation process of the present invention 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 just is to let the one of ordinary skilled in the art can understand content of the present invention and enforcement according to this in order technical conceive of the present invention and characteristics to be described, to be its objective is, can not limit protection scope of the present invention with this.The variation or the modification of every equivalence that the essence of content has been done according to the present invention all should be encompassed in protection scope of the present invention.
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 |
|---|---|---|---|
| CN 201110169407 CN102841622A (en) | 2011-06-22 | 2011-06-22 | Linear voltage regulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110169407 CN102841622A (en) | 2011-06-22 | 2011-06-22 | Linear voltage regulating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102841622A true CN102841622A (en) | 2012-12-26 |
Family
ID=47369090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110169407 Pending CN102841622A (en) | 2011-06-22 | 2011-06-22 | Linear voltage regulating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102841622A (en) |
-
2011
- 2011-06-22 CN CN 201110169407 patent/CN102841622A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104679087A (en) | Vehicle-mounted low-dropout linear voltage stabilizer circuit and low-voltage compensating circuit thereof | |
| CN110504826B (en) | LED driving system, ripple removing circuit and method | |
| CN203405750U (en) | Voltage stabilizing circuit and voltage stabilizing power supply device | |
| CN202159281U (en) | Linear voltage-adjusting circuit | |
| CN204794683U (en) | Power supply chip output voltage's dynamic adjustment circuit | |
| CN102841622A (en) | Linear voltage regulating circuit | |
| CN203929794U (en) | A kind of wide voltage speed pickup | |
| CN202975965U (en) | Direct current voltage converting circuit | |
| CN203882223U (en) | Voltage-controlled current source circuit | |
| CN202907251U (en) | Adjustable voltage stabilization power supply circuit and lamp | |
| CN100574071C (en) | Direct current is to DC converting circuit | |
| CN102843034A (en) | DC-DC booster circuit | |
| CN204496330U (en) | A kind of automobile sensor feed circuit | |
| CN204947895U (en) | A kind of power-switching circuit | |
| CN202797946U (en) | Overvoltage protection circuit | |
| CN202797947U (en) | Overvoltage protection circuit | |
| CN203205906U (en) | USB charger circuit | |
| CN202797879U (en) | Overvoltage protection circuit | |
| CN203967980U (en) | Switching power circuit and supply unit | |
| US20150155774A1 (en) | Surging current suppression circuit | |
| CN221200308U (en) | Temperature protection power supply circuit and power supply system | |
| CN107911903A (en) | Led drive circuit and mobile terminal | |
| CN208174000U (en) | A kind of mode of laser group driving circuit based on 3501 chips | |
| CN202797956U (en) | Overvoltage protection circuit | |
| CN202797951U (en) | Overvoltage protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121226 |