CN203180771U - Reader-writer power source used in RFID monitoring management system - Google Patents
Reader-writer power source used in RFID monitoring management system Download PDFInfo
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- CN203180771U CN203180771U CN 201320135614 CN201320135614U CN203180771U CN 203180771 U CN203180771 U CN 203180771U CN 201320135614 CN201320135614 CN 201320135614 CN 201320135614 U CN201320135614 U CN 201320135614U CN 203180771 U CN203180771 U CN 203180771U
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- electric capacity
- capacitor
- voltage
- terminal regulator
- management system
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Abstract
The utility model discloses a reader-writer power source used in an RFID monitoring management system. The reader-writer power source used in the RFID monitoring management system comprises a rectification circuit, a first capacitor, a second capacitor, a first three-end voltage stabilizer, a third capacitor, a fourth capacitor, a second three-end voltage stabilizer, a fifth capacitor, a sixth capacitor, a light emitting diode and a resistor. Application demands are mainly considered on design of the power source. Work voltage of the system is 3.3V. A voltage is rectified by the rectification circuit and then passes through the first three-end voltage stabilizer with an LM7805 model and the second three-end voltage stabilizer with an LM1117 model, after voltage transformation, the voltage is the needed voltage and enters the system, the voltage is the system input voltage. The reader-writer power source is used in the RFID monitoring management system, employs two three-end voltage stabilizers, has a few components, has properties of low power consumption, stable voltage and strong anti-interference capability and facilitates popularization.
Description
Technical field
The utility model relates to a kind of necessary device for the RFID monitoring management system, relates in particular to a kind of read write line power supply for the RFID monitoring management system.
Background technology
The power supply design is an extremely important job in the whole system design, directly influences success or failure and the performance of this system.During at concrete a certain system, the problem that the power supply design needs to consider comprises: the maximum power of system consumption, each device operating voltage of system and level requirement, reduce power consumption and problem such as anti-interference.And power supply of the prior art and perfect inadequately.
The utility model content
The purpose of this utility model provides a kind of read write line power supply for the RFID monitoring management system with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises rectification circuit, first electric capacity, second electric capacity, first three terminal regulator, the 3rd electric capacity, the 4th electric capacity, second three terminal regulator, the 5th electric capacity, the 6th electric capacity, light-emitting diode and resistance, the input of described rectification circuit is connected with AC power, the anodal while of described rectification circuit and the positive pole of described first electric capacity, first end of described second electric capacity is connected with the input of described first three terminal regulator, the negative pole while of described rectification circuit and the negative pole of described first electric capacity, second end of described second electric capacity, the negative pole of described first three terminal regulator, the negative pole of described the 3rd electric capacity, first end of described the 4th electric capacity, the negative pole of described second three terminal regulator, the negative pole of described the 5th electric capacity, first end of described the 6th electric capacity and first end of described resistance are connected, the output while of described first three terminal regulator and the positive pole of described the 3rd electric capacity, second end of described the 4th electric capacity is connected with the input of described second three terminal regulator, the output while of described second three terminal regulator and the positive pole of described the 5th electric capacity, second end of described the 6th electric capacity and the positive pole of described light-emitting diode are connected, and the negative pole of described light-emitting diode is connected with second end of described resistance.
Particularly, described first electric capacity, described the 3rd electric capacity and described the 5th electric capacity are electrochemical capacitor, and described second electric capacity, described the 4th electric capacity and described the 6th electric capacity are polarity free capacitor.
The beneficial effects of the utility model are:
Power supply in the utility model designs, and mainly considers the needs of its application.Be applied to the RFID monitoring management system, adopt two three terminal regulators, element is less, and is low in energy consumption, and voltage is stable, and antijamming capability is strong, is beneficial to popularization.
Description of drawings
Fig. 1 is the utility model circuit structure schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1: comprise rectification circuit DR, first capacitor C 1, second capacitor C 2, the first three terminal regulator IC1, the 3rd capacitor C 3, the 4th capacitor C 4, the second three terminal regulator IC2, the 5th capacitor C 5, the 6th capacitor C 6, LED and resistance R, the input of rectification circuit DR is connected with AC power, the anodal while of rectification circuit DR and the positive pole of first capacitor C 1, first end of second capacitor C 2 is connected with the input of the first three terminal regulator IC1, the negative pole while of rectification circuit DR and the negative pole of first capacitor C 1, second end of second capacitor C 2, the negative pole of the first three terminal regulator IC1, the negative pole of the 3rd capacitor C 3, first end of the 4th capacitor C 4, the negative pole of the second three terminal regulator IC2, the negative pole of the 5th capacitor C 5, first end of the 6th capacitor C 6 and first end of resistance R are connected, the output while of the first three terminal regulator IC1 and the positive pole of the 3rd capacitor C 3, second end of the 4th capacitor C 4 is connected with the input of the second three terminal regulator IC2, the output while of the second three terminal regulator IC2 and the positive pole of the 5th capacitor C 5, second end of the 6th capacitor C 6 and the positive pole of LED are connected, and the negative pole of LED is connected with second end of resistance R.First capacitor C 1, the 3rd capacitor C 3 and the 5th capacitor C 5 are electrochemical capacitor, and second capacitor C 2, the 4th capacitor C 4 and the 6th capacitor C 6 are polarity free capacitor.
As shown in Figure 1: the power supply in the utility model designs, and mainly considers the needs of its application.The operating voltage of all devices is all at 3.3 volts in the system.System's input voltage is 9V, through rectification circuit DR rectification, is the voltage that obtains 3.3V behind the first three terminal regulator IC1 of LM7805 and second three terminal regulator that model is LM1117 by model, obtains required voltage after the transformation and enters system.Be applied to the RFID monitoring management system, adopt two three terminal regulators, element is less, and is low in energy consumption, and voltage is stable, and antijamming capability is strong, is beneficial to popularization.
Claims (2)
1. read write line power supply that is used for the RFID monitoring management system, it is characterized in that: comprise rectification circuit, first electric capacity, second electric capacity, first three terminal regulator, the 3rd electric capacity, the 4th electric capacity, second three terminal regulator, the 5th electric capacity, the 6th electric capacity, light-emitting diode and resistance, the input of described rectification circuit is connected with AC power, the anodal while of described rectification circuit and the positive pole of described first electric capacity, first end of described second electric capacity is connected with the input of described first three terminal regulator, the negative pole while of described rectification circuit and the negative pole of described first electric capacity, second end of described second electric capacity, the negative pole of described first three terminal regulator, the negative pole of described the 3rd electric capacity, first end of described the 4th electric capacity, the negative pole of described second three terminal regulator, the negative pole of described the 5th electric capacity, first end of described the 6th electric capacity and first end of described resistance are connected, the output while of described first three terminal regulator and the positive pole of described the 3rd electric capacity, second end of described the 4th electric capacity is connected with the input of described second three terminal regulator, the output while of described second three terminal regulator and the positive pole of described the 5th electric capacity, second end of described the 6th electric capacity and the positive pole of described light-emitting diode are connected, and the negative pole of described light-emitting diode is connected with second end of described resistance.
2. the read write line power supply for the RFID monitoring management system according to claim 1, it is characterized in that: described first electric capacity, described the 3rd electric capacity and described the 5th electric capacity are electrochemical capacitor, and described second electric capacity, described the 4th electric capacity and described the 6th electric capacity are polarity free capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320135614 CN203180771U (en) | 2013-03-24 | 2013-03-24 | Reader-writer power source used in RFID monitoring management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320135614 CN203180771U (en) | 2013-03-24 | 2013-03-24 | Reader-writer power source used in RFID monitoring management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180771U true CN203180771U (en) | 2013-09-04 |
Family
ID=49077426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320135614 Expired - Lifetime CN203180771U (en) | 2013-03-24 | 2013-03-24 | Reader-writer power source used in RFID monitoring management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203180771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560683A (en) * | 2013-09-11 | 2014-02-05 | 昆山新金福精密电子有限公司 | Voltage-stabilizing power supply |
-
2013
- 2013-03-24 CN CN 201320135614 patent/CN203180771U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560683A (en) * | 2013-09-11 | 2014-02-05 | 昆山新金福精密电子有限公司 | Voltage-stabilizing power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |