CN202159281U - Linear voltage-adjusting circuit - Google Patents

Linear voltage-adjusting circuit Download PDF

Info

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
Application number
CN2011202128849U
Other languages
Chinese (zh)
Inventor
胡国良
魏王江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Hexinmei Electronic Technology Co Ltd
Original Assignee
Suzhou Hexinmei Electronic Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Hexinmei Electronic Technology Co Ltd filed Critical Suzhou Hexinmei Electronic Technology Co Ltd
Priority to CN2011202128849U priority Critical patent/CN202159281U/en
Application granted granted Critical
Publication of CN202159281U publication Critical patent/CN202159281U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

A kind of linear voltage regulation circuit
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.
CN2011202128849U 2011-06-22 2011-06-22 Linear voltage-adjusting circuit Expired - Fee Related CN202159281U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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
CN204102020U (en) A kind of constant-current supply system for earth mat current by pass proving installation transmitter module
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
CN202797952U (en) Overvoltage protection circuit
CN204190744U (en) A kind of power isolation circuit
CN203313054U (en) Step-down switching regulator 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