CN102801404A - Passive radio frequency identification power-on control circuit and passive radio frequency identification tag - Google Patents

Passive radio frequency identification power-on control circuit and passive radio frequency identification tag Download PDF

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Publication number
CN102801404A
CN102801404A CN2012100615011A CN201210061501A CN102801404A CN 102801404 A CN102801404 A CN 102801404A CN 2012100615011 A CN2012100615011 A CN 2012100615011A CN 201210061501 A CN201210061501 A CN 201210061501A CN 102801404 A CN102801404 A CN 102801404A
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switching tube
control
output
input
circuit
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CN102801404B (en
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韩富强
伍兰兰
吴边
漆射虎
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Excelio Technology Shenzhen Co Ltd
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Excelio Technology Shenzhen Co Ltd
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Abstract

The invention is suitable for the field of radio frequency, and provides a passive radio frequency identification power-on control circuit and a passive radio frequency identification tag. The power-on control circuit is connected with a rectification and voltage stabilization circuit, a resetting circuit and a digital circuit and comprises a first control unit for generating a switch-off control signal and a first power-on control signal according to a resetting signal output by the resetting circuit before power-on is performed to control the rectification and voltage stabilization circuit to output voltage stably during power-on and keeping switched off after power-on is performed, and a second control unit for controlling switch-off according to the switch-off control signal before power-on is performed and generating the first power-on control signal according to a digital logic control signal output by the digital circuit after power-on is performed to control the rectification and voltage stabilization circuit to output voltage stably after power-on is performed. According to the system, before power-on is performed, the first control unit controls to generate a stable logic state control signal according to the resetting signal and keep a power supply stable, so that the system can stably work during power-on; and the system is simple in structure and low in cost.

Description

A kind of passive radio frequency identification electrifying control circuit and passive radio-frequency identification labeled
Technical field
The invention belongs to RF application, relate in particular to a kind of passive radio frequency identification electrifying control circuit and passive radio-frequency identification labeled.
Background technology
Radio frequency identification (Radio Frequency Identification; RFID) be a kind of contactless automatic identification technology; It can be applied to multiple fields such as storehouse management, identification, communications and transportation, food medical treatment, the care of animal; Because it is used widely; The RFID technology is more and more coming into one's own in recent years, and high performance radio-frequency recognition system need be directed against different actual process, and temperature and field intensity situation are carried out the amplitude limiter circuit of rectification circuit in the dynamic adjustments radio-frequency front-end to satisfy performance need.
The RFID label mainly is divided into two types of passive label and active labels; The energy of the passive radio frequency identification label system of passive type is from the RF energy of read write line emission; Need not built-in power; Receive radiofrequency signal through antenna, produce reset circuit and the required stabilized power supply REG_V of digital circuit through over commutation and voltage stabilizing circuit in inside DDA, this reset circuit detects the REG_V of rectification and voltage stabilizing circuit output DDALast piezoelectric voltage is worked as REG_V DDAWhen voltage reaches the operating voltage range of reset circuit; Reset circuit produces reset signal POWER_READY digital circuit is resetted; The amplitude limiter circuit of rectification circuit in the output Digital Logic control signal control radio-frequency front-end after digital circuit is initialized to definite state; The conducting leakage switch is discharged into ground with the electric charge of rectifier output under extremely strong situation, plays the limited radio-frequency front-end device of protection voltage endurance capability with this; Under the strong situation of utmost point feeble field, turn-off leakage switch with control rectification and the stable REG_V of voltage stabilizing circuit output DDAVoltage guarantees that whole system has enough electric energy work.
But in power up, detect REG_V by reset circuit DDALast piezoelectric voltage is worked as REG_V DDAWhen voltage does not reach the working range of reset circuit; Digital circuit can not be reset; The power supply of digital logic system was not uncertain when reset signal provided as yet, and the control signal of this digital logic system output also is in not driven indeterminate state, the state that this not stationary state meeting makes the leakage switch of amplitude limiter circuit be in or open or close; Cause uncontrollable charge leakage, accurately the control figure circuit is exported effective Digital Logic control signal maintenance REG_V DDAVoltage is stable, influences the efficient of system's rectification, i.e. sensitivity under the weak-field condition, and more serious situation is that this not stationary state meeting makes passive passive radio frequency tag system can't accomplish the electrification reset function, causes system's fluctuation of service.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of passive radio frequency identification electrifying control circuit, is intended to solve and during passive radio-frequency identification labeled powering on, can't accurately controls the stable problem of power supply at present.
The embodiment of the invention is achieved in that a kind of passive radio frequency identification electrifying control circuit, is connected with rectification and voltage stabilizing circuit, reset circuit and digital circuit, and said electrifying control circuit comprises:
First control unit; The power end of said first control unit is connected with first power output end of said rectification and voltage stabilizing circuit; The input of said first control unit is connected with the output of said reset circuit; The output of said first control unit is connected with the forward control end of said rectification and voltage stabilizing circuit; The reset signal that is used for before powering on, exporting according to said reset circuit generates turn-offs electric control signal on the control signal and first, when powering on, stablizes output to control said rectification and voltage stabilizing circuit, and after powering on, keeps turn-offing;
Second control unit; The power end of said second control unit is connected with the second source output of said rectification and voltage stabilizing circuit; The test side of said second control unit is connected with the 3rd power output end of said rectification and voltage stabilizing circuit; The control end of said second control unit is connected with the control end of said first control unit; The input of said second control unit is connected with the output of said digital circuit, and the output of said second control unit is connected with the forward control end of said rectification and voltage stabilizing circuit, is used for before powering on, being turn-offed by said shutoff control signal control; And the Digital Logic control signal according to said digital circuit output generates electric control signal on first after powering on, to control said rectification and voltage stabilizing circuit stable output after powering on.
Another purpose of the embodiment of the invention is to provide a kind of the passive radio-frequency identification labeled of above-mentioned passive radio frequency identification electrifying control circuit of adopting.
In embodiments of the present invention; Before powering on (reset signal provide before); Through cut-off signals the Digital Logic control signal of not stationary state is cut off; And control first control unit through reset signal, generate electric control signal control rectification and the stable power supply of voltage stabilizing circuit output in the simulation first of stable logic states.After the completion that powers on, carry out normal level conversion function; Digital Logic control signal by stable is controlled second control unit, generates electric control signal control rectification and voltage stabilizing circuit in the simulation first, thereby controls and regulate analog front circuit effectively; Guarantee system's steady operation in power up; Avoided before system power-on reset, caused the power supply instability to cause the drawback of system effectiveness loss even afunction by control rectification of the digital logic signal of not stationary state and voltage stabilizing circuit, circuit structure design of the present invention is simple; It is convenient to realize, cost is lower.
Description of drawings
The structure chart of the passive radio frequency identification electrifying control circuit that Fig. 1 provides for one embodiment of the invention;
The exemplary circuit structure chart of the passive radio frequency identification electrifying control circuit that Fig. 2 provides for one embodiment of the invention;
The signal voltage figure of the passive radio frequency identification electrifying control circuit that Fig. 3 provides for one embodiment of the invention;
The another kind of realization example figure of the current limliting module of first control unit in the passive radio frequency identification electrifying control circuit that Fig. 4 provides for one embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention keeps power supply stable through before system powers on, generating the stable logic states control signal through the control of reset enable signal first control unit, guarantees system's steady operation in power up, and it is simple in structure, and cost is low.
Fig. 1 illustrates the structure of the passive radio frequency identification electrifying control circuit that the embodiment of the invention provides, and for the ease of explanation, only shows the part relevant with the present invention.
The passive radio frequency identification electrifying control circuit 1 that provides as one embodiment of the invention can be applied to various passive radio-frequency identification labeled in; This passive radio frequency identification electrifying control circuit 1 is connected with rectification and voltage stabilizing circuit 2, reset circuit 3 and digital circuit 4; The control end C3 of reset circuit 3, the power end of digital circuit 4 are connected with the 3rd power output end V3 of rectification and voltage stabilizing circuit 2 respectively; The output O3 of reset circuit 3 is connected with the control end C4 of digital circuit 4, and this passive radio frequency identification electrifying control circuit 1 comprises:
First control unit 11, the power end V of this first control unit 11 DDCBe connected with the first power output end V1 of rectification and voltage stabilizing circuit 2; The input In1 of first control unit 11 is connected with the output O3 of reset circuit 3; The output Out1 of first control unit 11 is connected with the forward control end F of rectification and voltage stabilizing circuit 2; Be used for before powering on, turn-offing electric control signal ANA1_CTRL on the control signal and first according to the reset signal POWER_READY generation of reset circuit 3 outputs; With control rectification and voltage stabilizing circuit 2 stable output when powering on, and after powering on, keep turn-offing;
Second control unit 12, the power end V of this second control unit 12 DDABe connected the test side REG_V of second control unit 12 with the second source output V2 of rectification and voltage stabilizing circuit 2 DDABe connected with the 3rd power output end V3 of rectification and voltage stabilizing circuit 2; The control end C2 of second control unit 12 is connected with the control end C1 of first control unit 11; The input In2 of second control unit 12 is connected with the output O4 of digital circuit 4; The output Out2 of second control unit 12 is connected with the forward control end F of rectification and voltage stabilizing circuit 2; Be used for before powering on, turn-offing, and generate electric control signal ANA1_CTRL on first, with control rectification and voltage stabilizing circuit 2 stable output in the back that powers at the Digital Logic control signal DIG_CTRL of back that power on according to digital circuit 4 outputs by turn-offing control signal control.
In embodiments of the present invention; Before powering on (reset signal provide before); Through cut-off signals the Digital Logic control signal of not stationary state is cut off; And control first control unit through reset signal, generate electric control signal control rectification and the stable power supply of voltage stabilizing circuit output in the simulation first of stable logic states.After the completion that powers on, carry out normal level conversion function; Digital Logic control signal by stable is controlled second control unit, generates electric control signal control rectification and voltage stabilizing circuit in the simulation first, thereby controls and regulate analog front circuit effectively; Guarantee system's steady operation in power up; Avoided before system power-on reset, caused the power supply instability to cause the drawback of system effectiveness loss even afunction by control rectification of the digital logic signal of not stationary state and voltage stabilizing circuit, circuit structure design of the present invention is simple; It is convenient to realize, cost is lower.
Below in conjunction with specific embodiment realization of the present invention is elaborated.
Fig. 2 illustrates the exemplary circuit structure of the passive radio frequency identification electrifying control circuit that the embodiment of the invention provides, and for the ease of explanation, only shows the part relevant with the present invention.
In embodiments of the present invention, first control unit 11 comprises:
Current limliting module 103, first switching tube 101 and second switch pipe 102;
The input of current limliting module 103 is the power end V of first control unit 11 DDCThe output of current limliting module 103 is that the control end C1 of first control unit 11 is connected with the input of first switching tube 101; The control end of first switching tube 101 is the input In1 of first control unit 11, the output head grounding of first switching tube 101, and the control end of second switch pipe 102 is connected with the input of first switching tube 101; The input of second switch pipe 102 is the output Out1 of first control unit 11, the output head grounding of second switch pipe 102.
As one embodiment of the invention; First switching tube 101 all can be NPN type triode with second switch pipe 102; The input of first switching tube 101, second switch pipe 102 is the collector electrode of NPN type triode; The output of first switching tube 101, second switch pipe 102 is the emitter of NPN type triode, and the control end of first switching tube 101, second switch pipe 102 is the base stage of NPN type triode.
Preferably; First switching tube 101, second switch pipe 102 are N type metal-oxide-semiconductor; The drain electrode of N type metal-oxide-semiconductor is the input of first switching tube 101, second switch pipe 102; The source electrode of N type metal-oxide-semiconductor is the output of first switching tube 101, second switch pipe 102, and the grid of N type metal-oxide-semiconductor is the control end of first switching tube 101, second switch pipe 102.
As one embodiment of the invention, current limliting module 103 can adopt resistance R 1 to realize that be appreciated that ground, current limliting module 103 is not limited to resistance R 1 here, and any resistance element with certain resistance that can play metering function is all in the application's scope.
Preferably, this current limliting module 103 can adopt the N type metal-oxide-semiconductor series connection of a plurality of overlength raceway grooves to constitute, and its structure is referring to Fig. 4, and this structure both tolerable electric current is passed through, and can limit the electric current that is passed through again.
The N type metal-oxide-semiconductor (M1-Mn) that current limliting module 103 comprises a plurality of overlength raceway grooves is connected to form cascaded structure through the source class and the drain electrode of adjacent N type metal-oxide-semiconductor; The exceed input of flow module 103 of the drain electrode of N type metal-oxide-semiconductor M1, the source class of N type metal-oxide-semiconductor M1 is connected with the drain electrode of N type metal-oxide-semiconductor M2, by that analogy; The source class of N type metal-oxide-semiconductor Mn-1 is connected with the drain electrode of N type metal-oxide-semiconductor Mn; The exceed output of flow module 103 of the drain electrode of N type metal-oxide-semiconductor Mn, the grid of N type metal-oxide-semiconductor M1-Mn is connected with the drain electrode of N type metal-oxide-semiconductor M1 simultaneously, as the input of current limliting module 103.
Second control unit 12 comprises:
The 3rd switching tube 203, the 4th switching tube 204, the 5th switching tube 205, the 6th switching tube 206, the 7th switching tube 207, the 8th switching tube 208, the 9th switching tube 209 and the tenth switching tube 210;
The input of the 3rd switching tube 203 is the test side REG_V of second control unit 12 DDAThe control end of the 3rd switching tube 203 is that the input In2 of second control unit 12 is connected with the control end of the 4th switching tube 204; The output of the 3rd switching tube 203 is connected with the input of the 4th switching tube 204; The output head grounding of the 4th switching tube 204, the control end of the 5th switching tube 205 is connected with the control end of the 4th switching tube 204, the output head grounding of the 5th switching tube 205; The control end of the 6th switching tube 206 is connected with the input of the 4th switching tube 204; The output head grounding of the 6th switching tube 206, the input of the 6th switching tube 206 is connected with the output of the 8th switching tube 208, and the control end of the 8th switching tube 208 is connected with the input of the 5th switching tube 205; The output of the 7th switching tube 207 is connected with the input of the 5th switching tube 205; The control end of the 7th switching tube 207 is that the output Out2 of second control unit 12 is connected with the output of the 8th switching tube 208, and the input of the 7th switching tube 207 is connected with the output of the 9th switching tube 209, and the input of the 9th switching tube 209 is the power end V of second control unit 12 DDABe connected with the input of the tenth switching tube 210, the control end of the tenth switching tube 210 is that the control end C2 of second control unit 12 is connected with the control end of the 9th switching tube 209, and the output of the tenth switching tube 210 is connected with the input of the 8th switching tube 208.
As one embodiment of the invention; The 4th switching tube 204, the 5th switching tube 205, the 6th switching tube 206 all can be NPN type triode; The current collection of NPN type triode is the emission output of the 4th switching tube 204, the 5th switching tube 205, the 6th switching tube 206 very of the input NPN type triode of the 4th switching tube 204, the 5th switching tube 205, the 6th switching tube 206 very, and the base stage of NPN type triode is the control end of the 4th switching tube 204, the 5th switching tube 205, the 6th switching tube 206;
The 3rd switching tube 203, the 7th switching tube 207, the 8th switching tube 208, the 9th switching tube 209 and the tenth switching tube 210 all can be the positive-negative-positive triode; The emission of positive-negative-positive triode is the input of the 3rd switching tube 203, the 7th switching tube 207, the 8th switching tube 208, the 9th switching tube 209 and the tenth switching tube 210 very; The current collection of positive-negative-positive triode is the output of the 3rd switching tube 203, the 7th switching tube 207, the 8th switching tube 208, the 9th switching tube 209 and the tenth switching tube 210 very, and the base stage of positive-negative-positive triode is the control end of the 3rd switching tube 203, the 7th switching tube 207, the 8th switching tube 208, the 9th switching tube 209 and the tenth switching tube 210.
Preferably; The 4th switching tube 204, the 5th switching tube 205, the 6th switching tube 206 are N type metal-oxide-semiconductor; The drain electrode of N type metal-oxide-semiconductor is the input of the 4th switching tube 204, the 5th switching tube 205, the 6th switching tube 206; The source electrode of N type metal-oxide-semiconductor is the output of the 4th switching tube 204, the 5th switching tube 205, the 6th switching tube 206, and the grid of N type metal-oxide-semiconductor is the control end of the 4th switching tube 204, the 5th switching tube 205, the 6th switching tube 206;
The 3rd switching tube 203, the 7th switching tube 207, the 8th switching tube 208, the 9th switching tube 209 and the tenth switching tube 210 are P type metal-oxide-semiconductor; The source electrode of P type metal-oxide-semiconductor is the input of the 3rd switching tube 203, the 7th switching tube 207, the 8th switching tube 208, the 9th switching tube 209 and the tenth switching tube 210; The drain electrode of P type metal-oxide-semiconductor is the output of the 3rd switching tube 203, the 7th switching tube 207, the 8th switching tube 208, the 9th switching tube 209 and the tenth switching tube 210, and the grid of P type metal-oxide-semiconductor is the control end of the 3rd switching tube 203, the 7th switching tube 207, the 8th switching tube 208, the 9th switching tube 209 and the tenth switching tube 210.
As one embodiment of the invention; This passive radio frequency identification electrifying control circuit 1 also comprises reverse unit 13; The power end of this reverse unit 13 is connected with the second source output of rectification and voltage stabilizing circuit 2; The input of reverse unit 13 is connected with the output of first control unit 11 and the output of second control unit 12 simultaneously; The output of reverse unit 13 is connected with the reverse control end of rectification and voltage stabilizing circuit 2, is used for first control signal is carried out reverse conversion, generates second control signal with control rectification and voltage stabilizing circuit 2 stable outputs.
Reverse unit 13 comprises:
The 11 switching tube 311 and twelvemo are closed pipe 312;
The input of the 11 switching tube 311 is the power end of reverse unit 13; The control end of the 11 switching tube 311 is that the input of reverse unit 13 is connected with the control end that twelvemo is closed pipe 312; The output of the 11 switching tube 311 is that the output of reverse unit 13 is connected with the input that twelvemo is closed pipe 312, and twelvemo is closed the output head grounding of pipe 312.
In embodiments of the present invention, carry out reverse process, generate electric control signal ANA2_CTRL on reverse relatively second through electric control signal ANA1_CTRL on 13 pairs first of the reverse unit.
As one embodiment of the invention; The 11 switching tube 311 can be NPN type triode; The current collection of NPN type triode is the input of the 11 switching tube 311 very; The emission of NPN type triode is the output of the 11 switching tube 311 very, and the base stage of NPN type triode is the control end of the 11 switching tube 311;
It is can the positive-negative-positive triode that twelvemo is closed pipe 312; The emission of positive-negative-positive triode is the input of twelvemo pass pipe 312 very; The current collection of positive-negative-positive triode is the output of twelvemo pass pipe 312 very, and the base stage of positive-negative-positive triode is the control end that twelvemo is closed pipe 312.
Preferably, the 11 switching tube 311 is a N type metal-oxide-semiconductor, and the drain electrode of N type metal-oxide-semiconductor is the input of the 11 switching tube 311, and the source electrode of N type metal-oxide-semiconductor is the output of the 11 switching tube 311, and the grid of N type metal-oxide-semiconductor is the control end of the 11 switching tube 311;
It is P type metal-oxide-semiconductor that twelvemo is closed pipe 312, and the source electrode of P type metal-oxide-semiconductor is the input that twelvemo is closed pipe 312, and the drain electrode of P type metal-oxide-semiconductor is the output that twelvemo is closed pipe 312, and the grid of P type metal-oxide-semiconductor is the control end that twelvemo is closed pipe 312.
In embodiments of the present invention, in conjunction with Fig. 2 and Fig. 3, the passive RFID tag of passive type receives radiofrequency signal through antenna, through over commutation and the voltage stabilizing circuit 2 outputs first power supply V DDC, second source V DDA, and be the 3rd power supply REG_V of other operating circuits such as reset circuit 3, digital circuit 4 power supply in the system DDA, in power up, the 3rd power supply REG_V DDABeginning is risen rapidly, and before the operating voltage that reaches reset circuit 3, digital circuit 3 is not reset; The logic output DIG_CTRL of digital circuit 3 is not stationary state; Reset signal POWER_READY keeps low-voltage, and less than the threshold voltage of first switching tube 101, this moment CTRL voltage follow V DDCVoltage rise rapidly; In case CTRL voltage is greater than the threshold voltage of second switch pipe 102, second switch pipe 102 is opened, and the voltage of electric control signal ANA1_CTRL is forced the earth potential that drags down to confirming on first; CTRL voltage is controlled the 9th switching tube 209 simultaneously, the tenth switching tube 210 turn-offs; Reduce power consumptions to guarantee that second control unit 12 turn-offs, this moment, the 11 switching tube 311 was opened, and electric control signal ANA2_CTRL voltage follow V on second DDAVoltage, thus it is stable correctly to control the output power supply of rectification and voltage stabilizing circuit 2 through electric control signal ANA2_CTRL on the electric control signal ANA1_CTRL, second on first.
Electricity 3 detects voltage REG_V when resetting DDAWhen reaching the operating voltage range of digital circuit 4, saltus step takes place and is following voltage REG_V in reset signal POWER_READY DDABe high potential; Digital circuit 4 was reset and carried out initialization this moment; And the voltage of this reset signal POWER_READY is greater than the threshold voltage of first switching tube 101; CTRL voltage drags down and is earth potential, so second switch pipe 102 is in off state, control signal CTRL controls the 9th switching tube 209 and 210 conductings of the tenth switching tube; Second control unit 12 is according to Digital Logic control signal DIG_CTRL control 205,206,207,208 conductings of the high potential of digital circuit 4 output, exports on earthy first electric control signal ANA1_CTRL and following V DDAVoltage second on the output power supply of electric control signal ANA2_CTRL control rectification and voltage stabilizing circuit 2 stable.
In embodiments of the present invention; Before powering on (reset signal provide before); Through cut-off signals the Digital Logic control signal of not stationary state is cut off; And control electric control signal, control rectification and the stable power supply of voltage stabilizing circuit output in the simulation first that first control unit generates stable logic states through reset signal.After the completion that powers on, carry out normal level conversion function; Digital Logic control signal by stable is controlled second control unit, generates electric control signal control rectification and voltage stabilizing circuit in the simulation first, thereby controls and regulate analog front circuit effectively; Guarantee system's steady operation in power up; Avoided before system power-on reset, caused the power supply instability to cause the drawback of system effectiveness loss even afunction by control rectification of the digital logic signal of not stationary state and voltage stabilizing circuit, circuit structure design of the present invention is simple; It is convenient to realize, cost is lower.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a passive radio frequency identification electrifying control circuit is connected with rectification and voltage stabilizing circuit, reset circuit and digital circuit, it is characterized in that said electrifying control circuit comprises:
First control unit; The power end of said first control unit is connected with first power output end of said rectification and voltage stabilizing circuit; The input of said first control unit is connected with the output of said reset circuit; The output of said first control unit is connected with the forward control end of said rectification and voltage stabilizing circuit; The reset signal that is used for before powering on, exporting according to said reset circuit generates turn-offs electric control signal on the control signal and first, when powering on, stablizes output to control said rectification and voltage stabilizing circuit, and after powering on, keeps turn-offing;
Second control unit; The power end of said second control unit is connected with the second source output of said rectification and voltage stabilizing circuit; The test side of said second control unit is connected with the 3rd power output end of said rectification and voltage stabilizing circuit; The control end of said second control unit is connected with the control end of said first control unit; The input of said second control unit is connected with the output of said digital circuit, and the output of said second control unit is connected with the forward control end of said rectification and voltage stabilizing circuit, is used for before powering on, being turn-offed by said shutoff control signal control; And the Digital Logic control signal according to said digital circuit output generates electric control signal on first after powering on, to control said rectification and voltage stabilizing circuit stable output after powering on.
2. electrifying control circuit as claimed in claim 1 is characterized in that, said first control unit comprises:
Current limliting module, first switching tube and second switch pipe;
The input of said current limliting module is the power end of said first control unit; The output of said current limliting module is that the control end of said first control unit is connected with the input of said first switching tube; Said first control end of switching tube is the input of said first control unit; The said first output end of switching tube ground connection; The control end of said second switch pipe is connected with the input of said first switching tube, and the input of said second switch pipe is the output of said first control unit, the output head grounding of said second switch pipe.
3. electrifying control circuit as claimed in claim 2; It is characterized in that; Said current limliting module comprises the N type metal-oxide-semiconductor of a plurality of overlength raceway grooves, and the drain electrode of the source class of a plurality of said N type metal-oxide-semiconductors and adjacent N type metal-oxide-semiconductor is connected to form cascaded structure, and the drain electrode of first said N type metal-oxide-semiconductor is the input of said current limliting module; The source class of last said N type metal-oxide-semiconductor is the output of said current limliting module, and the grid of a plurality of said N type metal-oxide-semiconductors is the input of said current module simultaneously.
4. electrifying control circuit as claimed in claim 2; It is characterized in that; Said first switching tube, said second switch pipe are N type metal-oxide-semiconductor; The drain electrode of said N type metal-oxide-semiconductor is the input of said first switching tube, said second switch pipe, and the source electrode of said N type metal-oxide-semiconductor is the output of said first switching tube, said second switch pipe, and the grid of said N type metal-oxide-semiconductor is the control end of said first switching tube, said second switch pipe.
5. electrifying control circuit as claimed in claim 1 is characterized in that, said second control unit comprises:
The 3rd switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube, the 7th switching tube, the 8th switching tube, the 9th switching tube and the tenth switching tube;
The input of said the 3rd switching tube is the test side of said second control unit; The input that said the 3rd control end of switching tube is said second control unit is connected with said the 4th control end of switching tube; Said the 3rd output end of switching tube is connected with the input of said the 4th switching tube; Said the 4th output end of switching tube ground connection; Said the 5th control end of switching tube is connected with said the 4th control end of switching tube; Said the 5th output end of switching tube ground connection, said the 6th control end of switching tube is connected with the input of said the 4th switching tube, said the 6th output end of switching tube ground connection; The input of said the 6th switching tube is connected with the output of said the 8th switching tube; The control end of said the 8th switching tube is connected with the input of said the 5th switching tube, and the output of said the 7th switching tube is connected with the input of said the 5th switching tube, and the control end of said the 7th switching tube is that the output of said second control unit is connected with the output of said the 8th switching tube; The input of said the 7th switching tube is connected with said the 9th output end of switching tube; The input of said the 9th switching tube is that the power end of said second control unit is connected with the input of said the tenth switching tube, and the control end that said the tenth control end of switching tube is said second control unit is connected with said the 9th control end of switching tube, and said the tenth output end of switching tube is connected with the input of said the 8th switching tube.
6. electrifying control circuit as claimed in claim 5; It is characterized in that; Said the 4th switching tube, said the 5th switching tube, said the 6th switching tube are N type metal-oxide-semiconductor; The drain electrode of said N type metal-oxide-semiconductor is the input of said the 4th switching tube, said the 5th switching tube, said the 6th switching tube; The source electrode of said N type metal-oxide-semiconductor is said the 4th switching tube, said the 5th switching tube, said the 6th output end of switching tube, and the grid of said N type metal-oxide-semiconductor is said the 4th switching tube, said the 5th switching tube, said the 6th control end of switching tube;
Said the 3rd switching tube, said the 7th switching tube, said the 8th switching tube, said the 9th switching tube and the tenth switching tube are P type metal-oxide-semiconductor; The source electrode of said P type metal-oxide-semiconductor is the input of said the 3rd switching tube, said the 7th switching tube, said the 8th switching tube, said the 9th switching tube and the tenth switching tube; The drain electrode of said P type metal-oxide-semiconductor is said the 3rd switching tube, said the 7th switching tube, said the 8th switching tube, said the 9th switching tube and the tenth output end of switching tube, and the grid of said P type metal-oxide-semiconductor is said the 3rd switching tube, said the 7th switching tube, said the 8th switching tube, said the 9th switching tube and the tenth control end of switching tube.
7. electrifying control circuit as claimed in claim 1 is characterized in that, said electrifying control circuit also comprises:
Reverse unit; The power end of said reverse unit is connected with the second source output of said rectification and voltage stabilizing circuit; The input of said reverse unit is connected with the output of said first control unit and the output of second control unit simultaneously; The output of said reverse unit is connected with the reverse control end of said rectification and voltage stabilizing circuit, is used for said first control signal is carried out reverse conversion, generates second control signal to control the stable output of said rectification and voltage stabilizing circuit.
8. electrifying control circuit as claimed in claim 7 is characterized in that, said reverse unit comprises:
The 11 switching tube and twelvemo are closed pipe;
The input of said the 11 switching tube is the power end of said reverse unit; The input that said the 11 control end of switching tube is said reverse unit is connected with the control end that said twelvemo is closed pipe; The output that said the 11 output end of switching tube is said reverse unit is connected with the input that said twelvemo is closed pipe, and said twelvemo is closed the output head grounding of pipe.
9. electrifying control circuit as claimed in claim 8; It is characterized in that; Said the 11 switching tube is a N type metal-oxide-semiconductor; The drain electrode of said N type metal-oxide-semiconductor is the input of said the 11 switching tube, and the source electrode of said N type metal-oxide-semiconductor is said the 11 output end of switching tube, and the grid of said N type metal-oxide-semiconductor is said the 11 control end of switching tube;
Said twelvemo is closed pipe and is P type metal-oxide-semiconductor; The source electrode of said P type metal-oxide-semiconductor is the input that said twelvemo is closed pipe; The drain electrode of said P type metal-oxide-semiconductor is the output that said twelvemo is closed pipe, and the grid of said P type metal-oxide-semiconductor is the control end that said twelvemo is closed pipe.
One kind passive radio-frequency identification labeled, it is characterized in that said electrifying control circuit in passive radio-frequency identification labeled is like each described electrifying control circuit of claim 1 to 9.
CN201210061501.1A 2012-03-09 2012-03-09 Passive radio frequency identification power-on control circuit and passive radio frequency identification tag Active CN102801404B (en)

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CN104516381A (en) * 2013-09-26 2015-04-15 上海华虹集成电路有限责任公司 Rectification and voltage stabilization circuit for radio frequency identification
WO2015103958A1 (en) * 2014-01-08 2015-07-16 卓捷创芯科技(深圳)有限公司 Rectification and amplitude limiting circuit controlled by switch signal, and passive radio-frequency tag
CN111478685A (en) * 2020-03-17 2020-07-31 普联技术有限公司 Power-on anti-shake circuit and electronic equipment

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