CN102841622A - Linear voltage regulating circuit - Google Patents

Linear voltage regulating circuit Download PDF

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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
Application number
CN 201110169407
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 CN 201110169407 priority Critical patent/CN102841622A/en
Publication of CN102841622A publication Critical patent/CN102841622A/en
Pending legal-status Critical Current

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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

A kind of linear voltage regulation circuit
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.
CN 201110169407 2011-06-22 2011-06-22 Linear voltage regulating circuit Pending CN102841622A (en)

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)

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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