CN203289312U - Stabilized voltage supply with double filter function - Google Patents
Stabilized voltage supply with double filter function Download PDFInfo
- Publication number
- CN203289312U CN203289312U CN2013203553322U CN201320355332U CN203289312U CN 203289312 U CN203289312 U CN 203289312U CN 2013203553322 U CN2013203553322 U CN 2013203553322U CN 201320355332 U CN201320355332 U CN 201320355332U CN 203289312 U CN203289312 U CN 203289312U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- resistance
- diode
- stabilized voltage
- operational amplifier
- 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 - Lifetime
Links
Landscapes
- Amplifiers (AREA)
- Networks Using Active Elements (AREA)
Abstract
The utility model discloses a stabilized voltage supply with a double filter function mainly solving the problems that an anti-interference power supply existing in the prior art is complicated in structure and higher in cost. The stabilized voltage supply with the double filter function comprises a CM1117-3.3, an electrolytic capacitor C1 and a capacitor C2 both connected between the input end of the CM1117-3.3 and the ground, a capacitor C3 and an electrolytic capacitor C4 both connected between the output end of the CM1117-3.3 and the ground, a resistor R1 and a diode D1 in parallel connection between the two ends of the capacitor C3 after being connected in series, a detector circuit connected with the diode D1, and a filter circuit connected with the detector circuit. By the above scheme, the stabilized voltage supply with the double filter function of the utility model achieves the purposes of possessing a better anti-interference capability, and being low in cost and compact in volume, and has very high practical value and popularization value.
Description
Technical field
The utility model relates to a kind of power supply, specifically, relates to a kind of stabilized voltage power supply with double-smoothing function.
Background technology
Power supply is the indispensable devices of most of electric equipments, in order to make each electric equipment can normally move the stability that need to guarantee as much as possible Power supply, thereby need to use a lot of anti-interference equipments, can cause like this power volume larger, cost is higher, is unfavorable for some mini-plant uses cheaply.
The utility model content
The purpose of this utility model is to provide a kind of stabilized voltage power supply with double-smoothing function, mainly solves the high accuracy anti-jamming power-supply complex structure that exists in prior art, the problem that cost is higher.
To achieve these goals, the technical solution adopted in the utility model is as follows:
stabilized voltage power supply with double-smoothing function, comprise CM1117-3.3, all be connected in the input of CM1117-3.3 and the electrochemical capacitor C1 between ground and capacitor C 2, all be connected in output and the capacitor C between ground 3 and the electrochemical capacitor C4 of CM1117-3.3, be parallel to resistance R 1 and the diode D1 at capacitor C 3 two ends after series connection, the detecting circuit that is connected with diode D1, the filter circuit that is connected with detecting circuit, described filter circuit comprises the resistance R 4 of in-phase input end by connecting, resistance R 3, the operational amplifier T2 that capacitor C 5 is connected with detecting circuit, one end is connected between resistance R 3 and resistance R 4, the other end is connected in the capacitor C 6 of the output of operational amplifier T2, one end is connected between capacitor C 5 and resistance R 3, the resistance R 5 of other end ground connection, the inverting input of described operational amplifier T2 is connected with output.
Further, described detecting circuit comprises that output passes through the operational amplifier T1 that diode D3 is connected with the end of diode D1, inverting input is connected with the other end of diode D1 by resistance R 2, be connected in the output of operational amplifier T1 and the diode D2 between inverting input, described capacitor C 5 is connected with the inverting input of operational amplifier T1.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model is designed to one with filter circuit, power circuit, detecting circuit, and according to actual conditions, has selected the components and parts that cost is minimum, effect is best to carry out circuit design, accords with the demands of the market.
(2) in the utility model, adopt and both to have had circuit that high pass filter function also has the low-pass filtering function as filter circuit, circuit structure is very ingenious, and the filtering effect is fairly obvious, realistic demand.
(3) the utility model is simple in structure, uses less components and parts to realize anti-interference function, and with low cost, volume is small and exquisite, is fit to large-scale promotion application.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, and execution mode of the present utility model includes but not limited to the following example.
Embodiment
as shown in Figure 1, the utility model discloses a kind of stabilized voltage power supply with double-smoothing function, comprise CM1117-3.3, all be connected in the input of CM1117-3.3 and the electrochemical capacitor C1 between ground and capacitor C 2, all be connected in output and the capacitor C between ground 3 and the electrochemical capacitor C4 of CM1117-3.3, be parallel to resistance R 1 and the diode D1 at capacitor C 3 two ends after series connection, the detecting circuit that is connected with diode D1, the filter circuit that is connected with detecting circuit, described filter circuit comprises the resistance R 4 of in-phase input end by connecting, resistance R 3, the operational amplifier T2 that capacitor C 5 is connected with detecting circuit, one end is connected between resistance R 3 and resistance R 4, the other end is connected in the capacitor C 6 of the output of operational amplifier T2, one end is connected between capacitor C 5 and resistance R 3, the resistance R 5 of other end ground connection, the inverting input of described operational amplifier T2 is connected with output.
Further, described detecting circuit comprises that output passes through the operational amplifier T1 that diode D3 is connected with the end of diode D1, inverting input is connected with the other end of diode D1 by resistance R 2, be connected in the output of operational amplifier T1 and the diode D2 between inverting input, described capacitor C 5 is connected with the inverting input of operational amplifier T1.
On the basis of foregoing circuit, the present embodiment also is connected with part auxiliary element and line, is used for guaranteeing the normal operation of circuit, and the use of these auxiliary elements belongs to the circuit application custom of industry universal, does not repeat them here.
, according to above-described embodiment, just can realize well the utility model.
Claims (2)
1. with the stabilized voltage power supply of double-smoothing function, it is characterized in that, comprise CM1117-3.3, all be connected in the input of CM1117-3.3 and the electrochemical capacitor C1 between ground and capacitor C 2, all be connected in output and the capacitor C between ground 3 and the electrochemical capacitor C4 of CM1117-3.3, be parallel to resistance R 1 and the diode D1 at capacitor C 3 two ends after series connection, the detecting circuit that is connected with diode D1, the filter circuit that is connected with detecting circuit, described filter circuit comprises the resistance R 4 of in-phase input end by connecting, resistance R 3, the operational amplifier T2 that capacitor C 5 is connected with detecting circuit, one end is connected between resistance R 3 and resistance R 4, the other end is connected in the capacitor C 6 of the output of operational amplifier T2, one end is connected between capacitor C 5 and resistance R 3, the resistance R 5 of other end ground connection, the inverting input of described operational amplifier T2 is connected with output.
2. the stabilized voltage power supply with double-smoothing function according to claim 1, it is characterized in that, described detecting circuit comprises that output passes through the operational amplifier T1 that diode D3 is connected with the end of diode D1, inverting input is connected with the other end of diode D1 by resistance R 2, be connected in the output of operational amplifier T1 and the diode D2 between inverting input, described capacitor C 5 is connected with the inverting input of operational amplifier T1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203553322U CN203289312U (en) | 2013-06-20 | 2013-06-20 | Stabilized voltage supply with double filter function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203553322U CN203289312U (en) | 2013-06-20 | 2013-06-20 | Stabilized voltage supply with double filter function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203289312U true CN203289312U (en) | 2013-11-13 |
Family
ID=49545654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203553322U Expired - Lifetime CN203289312U (en) | 2013-06-20 | 2013-06-20 | Stabilized voltage supply with double filter function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203289312U (en) |
-
2013
- 2013-06-20 CN CN2013203553322U patent/CN203289312U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102739348B (en) | Decoding circuit | |
| CN203289312U (en) | Stabilized voltage supply with double filter function | |
| CN203289318U (en) | Novel power amplifier power supply circuit | |
| CN203287809U (en) | High-precision negative feedback power circuit | |
| CN203289319U (en) | Pre-amplification power amplifier power supply | |
| CN203287805U (en) | Serial-connection negative feedback power circuit | |
| CN203706007U (en) | Ethernet switch voltage stabilizing circuit | |
| CN204117011U (en) | A kind of voltage signal conditioning circuit based on controllable accurate source of stable pressure | |
| CN203289307U (en) | Mobile power supply | |
| CN204119024U (en) | A kind of voltage signal conditioning circuit based on TL431 | |
| CN203299678U (en) | Anti-interference voltage-stabilized source | |
| CN203289313U (en) | Dynamic filtering power supply | |
| CN203289306U (en) | Voltage stabilization type power amplifier power supply | |
| CN203287810U (en) | Serial-connection negative feedback voltage stabilizing power circuit | |
| CN203313128U (en) | Novel infrared amplifying circuit | |
| CN203289633U (en) | Low noise power amplifier power supply circuit | |
| CN203301428U (en) | Infrared amplifier with filter function | |
| CN203287804U (en) | Voltage-stabilized power supply | |
| CN203056993U (en) | Voltage stabilizer power source having function of dual filtering | |
| CN203289417U (en) | Noise reduction type audio signal receiver | |
| CN203289451U (en) | High-sensitivity infrared receiving circuit | |
| CN203289450U (en) | Infrared receiver | |
| CN203027157U (en) | High-precision negative-feedback power supply circuit | |
| CN203289441U (en) | Infrared receiving circuit | |
| CN204188687U (en) | A kind of on-load switch front end circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU BOST INFORMATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHENGDU BOOST TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610000, Sichuan, Chengdu province Wuhou District Wu Qing Road (Wuhou hi tech Innovation Center incubator) Patentee after: CHENGDU BOOST INFORMATION TECHNOLOGY Co.,Ltd. Address before: 610000, Sichuan, Chengdu province Wuhou District Wu Qing Road (Wuhou hi tech Innovation Center incubator) Patentee before: CHENGDU BOOST TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |