CN204044866U - Type active RFID electronic label communication module mu balanced circuit in packaging product - Google Patents
Type active RFID electronic label communication module mu balanced circuit in packaging product Download PDFInfo
- Publication number
- CN204044866U CN204044866U CN201420510251.XU CN201420510251U CN204044866U CN 204044866 U CN204044866 U CN 204044866U CN 201420510251 U CN201420510251 U CN 201420510251U CN 204044866 U CN204044866 U CN 204044866U
- Authority
- CN
- China
- Prior art keywords
- pin
- voltage stabilizing
- stabilizing chip
- chip
- radio frequency
- 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
Links
Abstract
The utility model discloses type active RFID electronic label communication module mu balanced circuit, it is characterized in that: the voltage stabilizing chip being provided with a low pressure drop between power supply and radio frequency chip, its ON/BPY pin is controlled by the P2.3 pin of radio frequency chip, controls voltage stabilizing chip and is work or is bypassed; The STAT pin of voltage stabilizing chip connects the P2.2 pin of radio frequency chip, indicates whether to need to carry out voltage transitions; The VIN pin of described voltage stabilizing chip connects the VBAT pin of power supply, and passes through capacity earth; The SW pin of described voltage stabilizing chip is connected for radio frequency chip is powered by inductance with VOUT pin, and described SW pin passes through capacity earth simultaneously; The GND pin ground connection of described voltage stabilizing chip.Compared with prior art, circuit is simple, can reduce energy loss, make output more stable, extends type active RFID electronic label service time.
Description
Technical field
The utility model belongs to type active RFID electronic label field of anti-counterfeit technology, is specifically related to a kind of communication module mu balanced circuit of type active RFID electronic label in the outer box body of white wine.
Background technology
In the false proof traceability system of white wine, type active RFID electronic label is with the addition of in the outer box body of white wine, the title of white wine in casing is have recorded in label, quantity, the information such as source and destination, because its inside has power supply unit, can be used for power supply needed for inner IC to produce external signal, it has longer reading distance, and larger memory size can be held, a large amount of information about this white wine that reader sends can be stored, the more important thing is that it supports initiatively to call the roll and passive roll-call formula, read write line reads the information being stored in label by wireless radio frequency mode, and validity checking can be carried out to region residing for casing, illegal operation is reported to the police.Existing type active RFID electronic label many employings Radio Frequency Monolithic machine CC430F5137, this Radio Frequency Monolithic machine CC430 chip provides very wide supply voltage scope, the input voltage of inner microcontroller core is 1.8-3.6V, and for inside radio circuit its input voltage range be 2.0-3.6V, so input voltage is minimum will have 2.0V.Input voltage is that inner radio circuit is when powering, can through a low pressure drop LDO (Low Drop Out) voltage regulator, convert input voltage to 2.0V, and the input current of LDO and output current are identical, electric energy utilization rate is exactly output voltage and input voltage ratio, and output voltage is 2.0V.Therefore radio frequency input voltage is more close to 2.0V, and electric energy utilization rate is higher.If the voltage that outside provides will consume on inner LDO higher than the so much remaining portion of energy of 2.0V, cause energy loss.
Summary of the invention
In order to solve the above-mentioned defect existed in prior art, it is simple that the purpose of this utility model is to provide a kind of circuit, can reduce energy loss, export more stable, the type active RFID electronic label communication module mu balanced circuit extended working time.
For achieving the above object, the technical solution adopted in the utility model: this type active RFID electronic label communication module mu balanced circuit, it is characterized in that: the voltage stabilizing chip TPS62730 being provided with a low pressure drop between power supply and radio frequency chip, described voltage stabilizing chip input voltage is 1.9-3.9V, output voltage is fixed as 2.1V, its ON/BPY pin is controlled by the P2.3 pin of radio frequency chip, controls voltage stabilizing chip and is work or is bypassed; The STAT pin of voltage stabilizing chip TPS62730 connects the P2.2 pin of radio frequency chip, indicates whether to need to carry out voltage transitions; The VIN pin of described voltage stabilizing chip connects the VBAT pin of power supply, and passes through capacity earth; The SW pin of described voltage stabilizing chip is connected for radio frequency chip is powered by inductance with VOUT pin, and described SW pin passes through capacity earth simultaneously; The GND pin ground connection of described voltage stabilizing chip.
Adopt the beneficial effect of technique scheme: this type active RFID electronic label communication module mu balanced circuit includes voltage stabilizing chip TPS62730, and this voltage stabilizing chip input voltage is 1.9-3.9V, and output voltage is fixed as 2.1V, and conversion efficiency is 95%.The maximum difference of voltage stabilizing chip TPS62730 and inner LDO reduction voltage circuit is, its output current is not identical with input current, and output current is greater than input current.Its ON/BPY pin is controlled by the P2.3 pin of radio frequency chip, control voltage stabilizing chip to be work or to be bypassed, just this pin being set to high level when needs carry out step-down to input voltage, when not needing this chip to carry out step-down, just this pin being set to low level.The STAT pin of TPS62730 needs to carry out voltage transitions to indicate whether, when voltage is close to output voltage 2.0V, does not just need converted.Voltage stabilizing chip internal has a voltage comparator, input voltage meeting and a threshold voltage compare, when output voltage 2.0V is less than 93% of input voltage (when input voltage is greater than 2.15V, 2.15*93=2), the STAT pin of chip is high level; When output voltage is greater than 93% of input voltage, the STAT pin of chip can be set to low level automatically.STAT pin can be received the external interrupt pin of controller, and be set to negative edge trigger mode.When down trigger, ON/BYP is just set to low level by microcontroller, bypasses step-down conversion chip.Compared with prior art, circuit is simple, can reduce energy loss, make output more stable, extends type active RFID electronic label service time.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Type active RFID electronic label communication module mu balanced circuit as shown in Figure 1, it is characterized in that: the voltage stabilizing chip TPS62730 being provided with a low pressure drop between power supply and radio frequency chip, described voltage stabilizing chip input voltage is 1.9-3.9V, output voltage is fixed as 2.1V, its ON/BPY pin is controlled by the P2.3 pin of radio frequency chip, control voltage stabilizing chip to be work or to be bypassed, just this pin is set to high level when needs carry out step-down to input voltage, when not needing this chip to carry out step-down, just this pin is set to low level.The STAT pin of voltage stabilizing chip TPS62730 connects the P2.2 pin of radio frequency chip, indicates whether to need to carry out voltage transitions, when voltage is close to output voltage 2.0V, does not just need converted.Voltage stabilizing chip internal has a voltage comparator, input voltage meeting and a threshold voltage compare, when output voltage 2.0V is less than 93% of input voltage (when input voltage is greater than 2.15V, 2.15*93=2), the STAT pin of chip is high level; When output voltage is greater than 93% of input voltage, the STAT pin of chip can be set to low level automatically.STAT pin can be received the external interrupt pin of controller, and be set to negative edge trigger mode.When down trigger, ON/BYP is just set to low level by microcontroller, bypasses step-down conversion chip.The VIN pin of described voltage stabilizing chip connects the VBAT pin of power supply, and by the first electric capacity C1 ground connection; The SW pin of described voltage stabilizing chip is connected for radio frequency chip is powered by inductance L with VOUT pin, and described SW pin is simultaneously by the second electric capacity C2 ground connection; The GND pin ground connection of described voltage stabilizing chip.
Claims (1)
1. a type active RFID electronic label communication module mu balanced circuit, it is characterized in that: the voltage stabilizing chip TPS62730 being provided with a low pressure drop between power supply and radio frequency chip, described voltage stabilizing chip input voltage is 1.9-3.9V, output voltage is fixed as 2.1V, its ON/BPY pin is controlled by the P2.3 pin of radio frequency chip, controls voltage stabilizing chip and is work or is bypassed; The STAT pin of voltage stabilizing chip TPS62730 connects the P2.2 pin of radio frequency chip, indicates whether to need to carry out voltage transitions; The VIN pin of described voltage stabilizing chip connects the VBAT pin of power supply, and passes through capacity earth; The SW pin of described voltage stabilizing chip is connected for radio frequency chip is powered by inductance with VOUT pin, and described SW pin passes through capacity earth simultaneously; The GND pin ground connection of described voltage stabilizing chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420510251.XU CN204044866U (en) | 2014-09-05 | 2014-09-05 | Type active RFID electronic label communication module mu balanced circuit in packaging product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420510251.XU CN204044866U (en) | 2014-09-05 | 2014-09-05 | Type active RFID electronic label communication module mu balanced circuit in packaging product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204044866U true CN204044866U (en) | 2014-12-24 |
Family
ID=52245509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420510251.XU Expired - Fee Related CN204044866U (en) | 2014-09-05 | 2014-09-05 | Type active RFID electronic label communication module mu balanced circuit in packaging product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204044866U (en) |
-
2014
- 2014-09-05 CN CN201420510251.XU patent/CN204044866U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104516381B (en) | Regulator rectifier circuit in radio-frequency (RF) identification | |
| CN105099184B (en) | A kind of underload switch power supply chip | |
| CN103699201A (en) | Multifunctional power-on circuit and Bluetooth product | |
| CN204046418U (en) | A kind of power supply power consumption control module | |
| CN202738078U (en) | NFC (near field communication)-based Bluetooth headset | |
| CN203643943U (en) | Multifunctional starting circuit and Bluetooth product | |
| CN204946023U (en) | The pluggable hardware configuration device of a kind of modularization | |
| CN204044866U (en) | Type active RFID electronic label communication module mu balanced circuit in packaging product | |
| CN202424283U (en) | Charger based on single-chip three-end TOP22X integrated chip | |
| CN202771722U (en) | 900 megahertz (MHz) passive radio frequency identification devices (RFID) label with new electricity-taking function | |
| CN203204107U (en) | Passive power-off automatic alarm | |
| CN102902336B (en) | The power supply link block of mainboard, mainboard and electronic equipment thereof | |
| CN203883674U (en) | Light-load switching power supply chip | |
| CN103427673A (en) | Power adapter with ultralow stand-by power consumption | |
| CN205139753U (en) | Power output management system with initiative protect function | |
| CN208654835U (en) | A kind of solar powered low-power consumption RFID active electronic label | |
| CN202696485U (en) | Superlow standby power consumption power source adapter | |
| CN203942318U (en) | A kind of portable power source that is plugged with TF card | |
| CN203930566U (en) | A kind of ship communication equipment power circuit | |
| CN103226724B (en) | A kind of NFC label and a kind of NFC electronic equipment | |
| CN203119599U (en) | Novel vehicle-mounted energy-saving power supply management circuit | |
| CN202550877U (en) | High-efficiency primary side feedback AC/DC (alternating current/direct current) power supply chip | |
| CN202475248U (en) | Power supply conversion apparatus | |
| CN105406711A (en) | Two-way voltage conversion control chip, two-way voltage converter and electronic watt-hour meter | |
| CN202616998U (en) | Negative voltage generating circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20150905 |
|
| EXPY | Termination of patent right or utility model |