CN202026163U - Cable sensing voltage stabilizing power supply device - Google Patents
Cable sensing voltage stabilizing power supply device Download PDFInfo
- Publication number
- CN202026163U CN202026163U CN2011201431618U CN201120143161U CN202026163U CN 202026163 U CN202026163 U CN 202026163U CN 2011201431618 U CN2011201431618 U CN 2011201431618U CN 201120143161 U CN201120143161 U CN 201120143161U CN 202026163 U CN202026163 U CN 202026163U
- Authority
- CN
- China
- Prior art keywords
- diode
- resistance
- supply device
- gnd
- circuit
- 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
Images
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The utility model discloses a cable sensing voltage stabilizing power supply device. A circuit consists of five parts: a mutual inductor (101), a rectifier bridge (102), a boost circuit (103), a control circuit (104) and an output, wherein the mutual inductor (101) is connected to the rectifier bridge (102), the rectifier bridge (102) is connected to the boost circuit (103) and is connected with the output through the boost circuit, the output is connected to the control circuit (104), and then, the control circuit (104) is fed back to the boost circuit (103). The cable sensing voltage stabilizing power supply device has the advantages that the structure is simple, the voltage stabilizing range is wide, the self starting can be realized, and the like. The cable sensing voltage stabilizing power supply device can be used for a high-voltage cable monitoring system.
Description
Technical field
The utility model relates to a kind of cable induction stabilized voltage supply device, belongs to Power Electronic Circuit and electric apparatus monitoring field.
Background technology
In the electric apparatus monitoring field, especially to the status monitoring of high-tension cable, how to give the power supply of cable auxiliary device is a stubborn problem always.A kind of method preferably is directly to utilize the electric current that flows through on the cable, obtains electric energy by instrument transformer, and supplies with external equipment.But the power supply that instrument transformer obtains is a current source, and general device all needs voltage fed, how efficiently current source to be converted to the key issue that voltage source becomes this method.
The utility model content
At the problems referred to above, the utility model just provides a kind of cable induction stabilized voltage supply device.A kind of cable induction stabilized voltage supply device, it comprises a circuit at least, and this circuit is by instrument transformer 101, rectifier bridge 102, Boost circuit 103, with control circuit 104 and output, five parts are formed, and instrument transformer 101 is connected to rectifier bridge 102, rectifier bridge is linked to Boost circuit 103, connect output through the Boost circuit, discharging chain is received control circuit 104, and control circuit 104 feeds back to Boost circuit 103 again.Instrument transformer 101 comprises current transformer T101.Rectifier bridge 102 comprises the first diode D201, the second diode D202, the 3rd diode D203, the 4th diode D204; One TVS manages D205, a capacitor C 201.The Boost circuit comprises an inductance L 301, one field effect transistor Q301.Control circuit 104 comprises first resistance R, 401, the second resistance R, 402, the three resistance R 403; One control chip U401, a power supply V401.
The end of above-mentioned current transformer T101 is connected with the positive pole of the first diode D201 of rectifier bridge 102, is connected with the negative pole of the second diode D202; The other end of current transformer T101 is connected with the positive pole of the 3rd diode D203 of rectifier bridge 102, is connected with the negative pole of the 4th diode D204; The negative pole of the first diode D201 is connected with the negative pole of the 3rd diode D203, and the positive pole of the second diode D202 is connected with the positive pole of the 4th diode D204.The negative pole of the 3rd diode D203 is connected with first capacitor C, 201 1 ends with TVS pipe D205 negative pole, and the positive pole of the 4th diode D204 is connected with first capacitor C, 201 1 ends with the positive pole of TVS pipe D205, and the positive pole of the second diode D202 is connected with GND.
First capacitor C, 201 1 ends are connected with first inductance L, 301 1 ends, the other end of first inductance L 301 is connected with the drain electrode of the first field effect transistor Q301, the drain electrode of the first field effect transistor Q301 is connected with the positive pole of the 5th diode D301, and the source electrode of the first field effect transistor Q301 is connected with GND; The negative pole of the 5th diode D301 is connected with an end of first capacitor C 301, the other end of first capacitor C 301 is connected with GND, one end of first resistance R 401 and load is connected with the negative pole of the 5th diode D301, one end of one end of the other end of first resistance R 401 and second resistance R 402 and the 3rd resistance R 403 and the positive input terminal of the first control chip U401 connect altogether, other end of second resistance R 402 and load is connected with GND, one end of the other end of the 3rd resistance R 403 and the 4th resistance R 301 and the output of the first control chip U401 connect altogether, and the gate pole of the first field effect transistor Q301 is connected with the other end of the 4th resistance R 301; The OUT end of the first power supply V401 is connected with the positive source of the first chip U401, the OUT end of the first reference voltage VREF is connected with the negative input end of the first chip U401, and the GND of the GND of the first power supply V401 and the first reference voltage VREF and power cathode and the GND of the first chip U401 connect altogether.
Foregoing circuit is by the electric current on the current transformer induction cable, through over commutation, the Boost circuit boosts, and control circuit is transformed into the current source of current transformer induction the voltage source of wide region, have wide range of applications, cable appurtenance is directly powered becomes possibility.
Description of drawings
Accompanying drawing 1 is circuit theory diagrams of the present utility model.
Accompanying drawing 2 is the circuit connection diagram in the utility model preferred implementation.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
The purpose of this utility model is the powerup issue that solves the attached checkout gear of cable.By the current transformer induction electric energy, change-over circuit and control circuit obtain wide-range voltage, replace directly laying the method for power line.
Accompanying drawing 1 is circuit catenation principle figure of the present utility model, and this circuit is by instrument transformer 101, rectifier bridge 102, and Boost circuit 103 and control circuit 104 and output, five parts are formed.Instrument transformer 101 is connected to rectifier bridge 102, and rectifier bridge is linked to Boost circuit 103, connects output through the Boost circuit, and discharging chain is received control circuit 104, and control circuit 104 feeds back to Boost circuit 103 again.
Accompanying drawing 2 be the utility model preferred embodiment, be the further execution mode of accompanying drawing 1.
Referring to accompanying drawing 2, the circuit connection mode of the technical scheme that the utility model provides is as follows: instrument transformer 101 comprises current transformer T101; Rectifier bridge 102 comprises the first diode D201, the second diode D202, the 3rd diode D203, the 4th diode D204; One TVS manages D205, a capacitor C 201; The Boost circuit comprises an inductance L 301, one field effect transistor Q301; Control circuit 104 comprises first resistance R, 401, the second resistance R, 402, the three resistance R 403; One control chip U401, a power supply V401.
The end of current transformer T101 is connected with the positive pole of the first diode D201 of rectifier bridge 102, is connected with the negative pole of the second diode D202; The other end of current transformer T101 is connected with the positive pole of the 3rd diode D203 of rectifier bridge 102, is connected with the negative pole of the 4th diode D204; The negative pole of the first diode D201 is connected with the negative pole of the 3rd diode D203, and the positive pole of the second diode D202 is connected with the positive pole of the 4th diode D204.The negative pole of the 3rd diode D203 is connected with first capacitor C, 201 1 ends with TVS pipe D205 negative pole, and the positive pole of the 4th diode D204 is connected with first capacitor C, 201 1 ends with the positive pole of TVS pipe D205, and the positive pole of the second diode D202 is connected with GND.
First capacitor C, 201 1 ends are connected with first inductance L, 301 1 ends, the other end of first inductance L 301 is connected with the drain electrode of the first field effect transistor Q301, the drain electrode of the first field effect transistor Q301 is connected with the positive pole of the 5th diode D301, and the source electrode of the first field effect transistor Q301 is connected with GND.The negative pole of the 5th diode D301 is connected with an end of first capacitor C 301, the other end of first capacitor C 301 is connected with GND, one end of first resistance R 401 and load is connected with the negative pole of the 5th diode D301, one end of one end of the other end of first resistance R 401 and second resistance R 402 and the 3rd resistance R 403 and the positive input terminal of the first control chip U401 connect altogether, other end of second resistance R 402 and load is connected with GND, one end of the other end of the 3rd resistance R 403 and the 4th resistance R 301 and the output of the first control chip U401 connect altogether, and the gate pole of the first field effect transistor Q301 is connected with the other end of the 4th resistance R 301.The OUT end of the first power supply V401 is connected with the positive source of the first chip U401, the OUT end of the first reference voltage VREF is connected with the negative input end of the first chip U401, and the GND of the GND of the first power supply V401 and the first reference voltage VREF and power cathode and the GND of the first chip U401 connect altogether.
By the foregoing description as can be seen, the utility model can bring following technique effect: this circuit is by the electric current on the current transformer induction cable, through over commutation, the Boost circuit boosts, and control circuit is transformed into the current source of current transformer induction the voltage source of wide region, have wide range of applications, cable appurtenance is directly powered becomes possibility.
Method and system described in the utility model is not limited to the embodiment described in the embodiment, and those skilled in the art draw other execution mode according to the technical solution of the utility model, belong to technological innovation scope of the present utility model equally.
Claims (6)
1. cable induction stabilized voltage supply device, it comprises a circuit at least, and this circuit is by instrument transformer (101), rectifier bridge (102), Boost circuit (103), and control circuit (104) and output, five parts are formed, and it is characterized in that: instrument transformer (101) is connected to rectifier bridge (102), rectifier bridge is linked to Boost circuit (103), connect output through the Boost circuit, discharging chain is received control circuit (104), and control circuit (104) feeds back to Boost circuit (103) again.
2. a kind of cable induction stabilized voltage supply device as claimed in claim 1 is characterized in that: described instrument transformer (101) comprises current transformer T101.
3. a kind of cable induction stabilized voltage supply device as claimed in claim 2 is characterized in that: described rectifier bridge (102) comprises the first diode D201, the second diode D202, the 3rd diode D203, the 4th diode D204; One TVS manages D205, a capacitor C 201.
4. a kind of cable induction stabilized voltage supply device as claimed in claim 3 is characterized in that: described Boost circuit comprises an inductance L 301, one field effect transistor Q301.
5. a kind of cable induction stabilized voltage supply device as claimed in claim 4 is characterized in that: described control circuit (104) comprises first resistance R, 401, the second resistance R, 402, the three resistance R 403; One control chip U401, a power supply V401.
6. a kind of cable induction stabilized voltage supply device as claimed in claim 5 is characterized in that: the end of current transformer T101 is connected with the positive pole of the first diode D201 of rectifier bridge (102), is connected with the negative pole of the second diode D202; The other end of current transformer T101 is connected with the positive pole of the 3rd diode D203 of rectifier bridge (102), is connected with the negative pole of the 4th diode D204; The negative pole of the first diode D201 is connected with the negative pole of the 3rd diode D203, and the positive pole of the second diode D202 is connected with the positive pole of the 4th diode D204; The negative pole of the 3rd diode D203 is connected with first capacitor C, 201 1 ends with TVS pipe D205 negative pole, and the positive pole of the 4th diode D204 is connected with first capacitor C, 201 1 ends with the positive pole of TVS pipe D205, and the positive pole of the second diode D202 is connected with GND;
First capacitor C, 201 1 ends are connected with first inductance L, 301 1 ends, the other end of first inductance L 301 is connected with the drain electrode of the first field effect transistor Q301, the drain electrode of the first field effect transistor Q301 is connected with the positive pole of the 5th diode D301, and the source electrode of the first field effect transistor Q301 is connected with GND; The negative pole of the 5th diode D301 is connected with an end of first capacitor C 301, the other end of first capacitor C 301 is connected with GND, one end of first resistance R 401 and load is connected with the negative pole of the 5th diode D301, one end of one end of the other end of first resistance R 401 and second resistance R 402 and the 3rd resistance R 403 and the positive input terminal of the first control chip U401 connect altogether, other end of second resistance R 402 and load is connected with GND, one end of the other end of the 3rd resistance R 403 and the 4th resistance R 301 and the output of the first control chip U401 connect altogether, and the gate pole of the first field effect transistor Q301 is connected with the other end of the 4th resistance R 301; The OUT end of the first power supply V401 is connected with the positive source of the first chip U401, the OUT end of the first reference voltage VREF is connected with the negative input end of the first chip U401, and the GND of the GND of the first power supply V401 and the first reference voltage VREF and power cathode and the GND of the first chip U401 connect altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201431618U CN202026163U (en) | 2011-05-09 | 2011-05-09 | Cable sensing voltage stabilizing power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201431618U CN202026163U (en) | 2011-05-09 | 2011-05-09 | Cable sensing voltage stabilizing power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202026163U true CN202026163U (en) | 2011-11-02 |
Family
ID=44851098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201431618U Expired - Lifetime CN202026163U (en) | 2011-05-09 | 2011-05-09 | Cable sensing voltage stabilizing power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202026163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136766A (en) * | 2011-05-09 | 2011-07-27 | 浙江图维电力科技有限公司 | Cable inducing voltage stabilizing power supply device |
-
2011
- 2011-05-09 CN CN2011201431618U patent/CN202026163U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136766A (en) * | 2011-05-09 | 2011-07-27 | 浙江图维电力科技有限公司 | Cable inducing voltage stabilizing power supply device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI514744B (en) | Offset voltage generation circuit and the application of its switching power supply | |
| CN102136766A (en) | Cable inducing voltage stabilizing power supply device | |
| CN103929060B (en) | Step-down conversion circuit | |
| CN104578772A (en) | Boosting circuit | |
| CN203055409U (en) | Led backlight drive circuit and liquid crystal display device | |
| CN202026163U (en) | Cable sensing voltage stabilizing power supply device | |
| CN203734382U (en) | High voltage CT self-power hardware platform | |
| CN203722473U (en) | Embedded single-switch Buck-Boost converter | |
| CN206628981U (en) | Width funtion exports flyback power supply PWM IC power supply circuits | |
| CN206389283U (en) | A kind of power circuit of simple low-power high voltage output | |
| CN202260992U (en) | Energy recovery circuit of ageing equipment | |
| CN203151827U (en) | Ultra-long-life large-current light emitting diode (LED) drive power circuit | |
| CN202586772U (en) | Switching power supply | |
| CN201577029U (en) | Student used experiment power supply | |
| CN205793526U (en) | LED drive power | |
| CN101630898B (en) | Circuit for regulating and controlling output power of power supply | |
| CN107404230B (en) | Step-down type dc converter | |
| CN201499087U (en) | Voltage boosting circuit | |
| CN203883676U (en) | DC-DC boost conversion device | |
| CN212943502U (en) | Transformer circuit, air purifier control circuit and ionic wind air purifier | |
| CN202135070U (en) | Dual-voltage capacitance-resistance voltage-reduction energy saving circuit | |
| CN203193505U (en) | Integrated low-voltage stabilized voltage power supply | |
| CN203967980U (en) | Switching power circuit and supply unit | |
| CN203352446U (en) | DC-DC voltage conversion circuit | |
| CN203120260U (en) | Electronic switch used for LED tubes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111102 |
|
| CX01 | Expiry of patent term |