CN209131750U - A kind of super low-power consumption gas meter, flow meter - Google Patents
A kind of super low-power consumption gas meter, flow meter Download PDFInfo
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- CN209131750U CN209131750U CN201822000229.1U CN201822000229U CN209131750U CN 209131750 U CN209131750 U CN 209131750U CN 201822000229 U CN201822000229 U CN 201822000229U CN 209131750 U CN209131750 U CN 209131750U
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Abstract
The utility model provides a kind of super low-power consumption gas meter, flow meter, include gas meter, flow meter, it also include voltage automatic classification compensation circuit, the voltage automatic classification compensation circuit includes voltage comparator circuit, transistor amplifier, power control circuit, the output end of the voltage comparator circuit and the input terminal of transistor amplifier connect, the output end of transistor amplifier is connect with power control circuit, the power control circuit connects gas meter, flow meter, the voltage comparator circuit includes operational amplification circuit and voltage regulator circuit, voltage when being realized by voltage automatic classification compensation circuit to terminal works and free time is adjusted, when terminal does not work, level is dragged down, terminal is set to be in suspend mode, it can significantly power saving, antenna can be reduced, radio frequency, the power consumption consumption of signaling processing etc., when terminal communication, draw high level, it can lead to Letter reduces terminal and re-establishes power consumption consumed by connection etc., saved cost.
Description
Technical field
The utility model relates to gas meter, flow meters, and in particular to a kind of super low-power consumption gas meter, flow meter.
Background technique
With the rapid development of social economy, the use of gas meter, flow meter has become people's daily life essential one
Point, but it finds that many problems in the routine use of gas meter, flow meter, in existing gas meter, flow meter technical field, do not use combustion gas
When, terminal just will disconnect the connection with gas meter, flow meter metering system, when metering system will work, need actively to initiate net by terminal
Network communication, re-establishes with system and connect, and each networking again reconnects or establishes PDN connection, can all cause biggish
Power consumption causes many unnecessary wastes.
Utility model content
For the deficiency in the presence of the prior art, the utility model provides a kind of super low-power consumption for reducing system power dissipation
Gas meter, flow meter.
To achieve the above object, the utility model uses the following technical solution:
A kind of super low-power consumption gas meter, flow meter also includes voltage automatic classification compensation circuit, the voltage automatic classification compensation electricity
Road includes voltage comparator circuit, transistor amplifier, power control circuit, the output end of the voltage comparator circuit and three poles
The input terminal of pipe amplifying circuit connects, and the output end of transistor amplifier is connect with power control circuit, the power supply control
Circuit connection gas meter, flow meter, the voltage comparator circuit include operational amplification circuit and voltage regulator circuit.
Further, the operational amplification circuit includes operational amplifier P1 and PNP triode bias amplifier, institute
State the positive input connection resistance R1 of operational amplifier P1, the connecting pin phase of the other end and resistance R3 and resistance R4 of resistance R1
Even, the other end of resistance R3 accesses VIN, the other end ground connection of resistance R4, and the reverse input end of operational amplifier P1 connects resistance
The other end of R2, resistance R2 and the output end of voltage regulator circuit connect, and the positive input of the operational amplifier P1 is additionally provided with PNP
The reverse input end of triode bias amplifier, the operational amplifier P1 biases ground connection, the output end of operational amplifier P1
It is connect with transistor amplifier.
Further, the PNP triode bias amplifier includes PNP triode Q1, the collector of PNP triode Q1
It is connect with resistance R12, the other end ground connection of resistance R12 is equipped with resistance R10, electricity between the base stage and emitter of PNP triode Q1
Resistance R10 is connected after connecting with the emitter of PNP triode Q1 with the connecting pin of capacitor C1 and access voltage VDD, and capacitor C1's is another
One end ground connection, the base stage of PNP triode Q1 are connect after connecting with resistance R10 with resistance R11, resistance R11 and operational amplifier P1
It is connect after connection with access voltage VDD.
Further, the voltage regulator circuit includes controllable accurate regulated power supply T1, the reference of controllable accurate regulated power supply T1
Resistance R5 is equipped between pole and anode, resistance R5 is connected ground connection with the anode of controllable accurate regulated power supply T1, resistance R5 with controllably
It is connect after the reference pole connection of accurate regulated power supply T1 with resistance R6, the other end of resistance R6 is connect with resistance R7, resistance R7's
The other end is connect with access voltage VDD, and resistance R7 is connect with the connecting pin of resistance R6 with the cathode of controllable accurate regulated power supply T1
It is connect afterwards with resistance R2, the cathode of controllable accurate regulated power supply T1 is connect with the connecting pin of resistance R2 with resistance R8, resistance R8's
The other end is connect with resistance R9, the other end ground connection of resistance R9.
Further, the transistor amplifier includes NPN triode amplifying circuit and PNP triode amplification electricity
Road, the NPN triode amplifying circuit include NPN triode Q2, and the PNP triode amplifying circuit includes PNP triode Q3,
Resistance R13 is equipped between the base stage and emitter of the NPN triode Q2, the emitter of NPN triode Q2 is connected with resistance R13
After be grounded, the base stage and resistance R13 of NPN triode Q2 are connect after being connected with resistance R14, and the other end and the operation of resistance R14 is put
The output end connection of big device P1, the collector of NPN triode Q2 are connect with resistance R15, the other end of resistance R15 and tri- pole PNP
The base stage of pipe Q3 connects, and connecting pin is connect with resistance R16, and the other end of resistance R16 is connect with the emitter of PNP triode Q3
It is connect afterwards with access voltage VDD and capacitor C2, the other end ground connection of capacitor C2, the collector and power supply of PNP triode Q3 controls
Circuit connection.
Further, the power control circuit includes switching power source chip S1, the voltage input of switching power source chip S1
End VIN1 is connect after connecting with the input terminal RUN1 that works with the anode of capacitor C3, the collector of connecting pin and PNP triode Q3
It is connected, the cathode of capacitor C3 is grounded after being connected with the ground terminal GND1 of switching power source chip S1, the switch of switching power source chip S1
End SW1 connect with inductance L1, the voltage output end VOUT1 of switching power source chip S1 connect with resistance R17 after with resistance R18 and electricity
The connecting pin for holding C5 is connected, and the other end ground connection of resistance R17, resistance R18 is connected rear and inductance L1 with the other end of capacitor C5
Other end connection is connect after connection with the connecting pin of the anode of capacitor C4 and supply voltage VBAT, the cathode ground connection of capacitor C4.
The working principle of the utility model is: needing high input voltage when terminal will communicate, voltage comparator is logical
PNP triode bias amplifier is crossed to transistor amplifier high input voltage, level is drawn high, 3.6V boost in voltage is arrived
3.9V realizes the power supply to terminal；Usually when not communicating, by voltage comparator, triode Q2 drags down level, makes terminal
In suspend mode.
Compared with the prior art, the utility model has the following beneficial effects: it is real by voltage automatic classification compensation circuit
Voltage when now to terminal works and free time is adjusted, and when terminal does not work, level is dragged down, terminal is made to be in suspend mode mould
Formula, intimate off-mode, can significantly power saving, can reduce antenna, radio frequency, signaling processing etc. power consumption consumption, when terminal communicate
When, level is drawn high, can be communicated, does not need to re-establish with system and connect, terminal is reduced and re-establishes connection etc. and consumed
Power consumption, saved cost, also shortened equipment and recommunicate the time, made equipment reaction faster.
Detailed description of the invention
Fig. 1 is the utility model embodiment circuit diagram.
Specific embodiment
The technical solution in the utility model is further illustrated with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the utility model proposes a kind of super low-power consumption gas meter, flow meters, also comprising voltage automatic classification compensation electricity
Road, the voltage automatic classification compensation circuit includes voltage comparator circuit, transistor amplifier, power control circuit, described
The output end of voltage comparator circuit and the input terminal of transistor amplifier connect, the output end and power supply of transistor amplifier
Control circuit connection, the power control circuit connect gas meter, flow meter, the voltage comparator circuit include operational amplification circuit and
Voltage regulator circuit, is additionally provided with sender unit, and sender unit includes phase discriminator and hysteresis loop comparator.It is automatic by voltage
Voltage when grading compensation circuit was realized to terminal works and free time is adjusted, and when terminal does not work, level is dragged down, is made
Terminal is in suspend mode, intimate off-mode, can significantly power saving, the power consumption that can reduce antenna, radio frequency, signaling processing etc. disappears
Consumption, when terminal needs to communicate, draws high level, can communicate, and does not need to re-establish with system and connect, and reduces terminal again
Power consumption consumed by connection etc. is established, cost has been saved, equipment is also shortened and recommunicates the time, makes equipment reaction faster.
The operational amplification circuit includes operational amplifier P1 and PNP triode bias amplifier, and the operation is put
The positive input of big device P1 connects resistance R1, and the other end of resistance R1 is connected with the connecting pin of resistance R3 and resistance R4, resistance
The output end of the other end access input hysteresis loop comparator of R3, the input terminal of hysteresis loop comparator and the output end of phase discriminator connect,
The output of hysteresis loop comparator is as VIN, and when a signal is transmitted, signal frequency is higher, and the output voltage of phase discriminator increases, and is more than stagnant
After returning the threshold voltage of comparator, then trigger action is corresponded to, so that VIN becomes a signal source passively changed, realizes voltage
It adjusts, the other end of resistance R4 ground connection, the reverse input end of operational amplifier P1 connects resistance R2, the other end of resistance R2 and steady
The output end of volt circuit connects, and the positive input of the operational amplifier P1 is additionally provided with PNP triode bias amplifier, institute
The reverse input end biasing ground connection of operational amplifier P1 is stated, the output end of operational amplifier P1 is connect with transistor amplifier.
Amplifier is used to signal carrying out power amplification, to meet the requirement for sending power, and does not interfere the communication of adjacency channel.
The PNP triode bias amplifier includes PNP triode Q1, the collector and resistance R12 of PNP triode Q1
Connection, resistance R12 the other end ground connection, between the base stage and emitter of PNP triode Q1 be equipped with resistance R10, resistance R10 with
It is connected after the emitter connection of PNP triode Q1 with the connecting pin of capacitor C1 and access voltage VDD, another termination of capacitor C1
Ground, the base stage of PNP triode Q1 is connect after connecting with resistance R10 with resistance R11, after resistance R11 is connect with operational amplifier P1
It is connect with access voltage VDD.Input voltage is amplified, level is drawn high, works normally gas meter, flow meter.
The voltage regulator circuit includes controllable accurate regulated power supply T1, reference the pole of controllable accurate regulated power supply T1 and anode it
Between be equipped with resistance R5, resistance R5 is connected ground connection with the anode of controllable accurate regulated power supply T1, and resistance R5 is electric with controllable accurate pressure stabilizing
Source T1 reference pole connection after connect with resistance R6, the other end of resistance R6 is connect with resistance R7, the other end of resistance R7 with connect
Enter voltage VDD connection, resistance R7 connect with the connecting pin of resistance R6 with the cathode of controllable accurate regulated power supply T1 after with resistance R2
Connection, the cathode of controllable accurate regulated power supply T1 are connect with the connecting pin of resistance R2 with resistance R8, the other end and electricity of resistance R8
Hinder R9 connection, the other end ground connection of resistance R9.Output voltage quality is improved by controllable accurate regulated power supply, equipment operation is more steady
It is fixed.
The transistor amplifier includes NPN triode amplifying circuit and PNP triode amplifying circuit, the NPN
Transistor amplifier includes NPN triode Q2, and the PNP triode amplifying circuit includes PNP triode Q3, the NPN tri-
Resistance R13 is equipped between the base stage and emitter of pole pipe Q2, the emitter of NPN triode Q2 is grounded after being connected with resistance R13,
The base stage and resistance R13 of NPN triode Q2 is connect after being connected with resistance R14, and the other end of resistance R14 is with operational amplifier P1's
Output end connection, the collector of NPN triode Q2 are connect with resistance R15, the other end of resistance R15 and the base of PNP triode Q3
Pole connection, connecting pin connect with resistance R16, the other end of resistance R16 connect with the emitter of PNP triode Q3 after with access
Voltage VDD is connected with capacitor C2, and the other end ground connection of capacitor C2, the collector of PNP triode Q3 is connect with power control circuit.
Input voltage is amplified, level is drawn high.
The power control circuit includes switching power source chip S1, the voltage input end VIN1 and work of switching power source chip S1
It is connect after making input terminal RUN1 connection with the anode of capacitor C3, connecting pin is connected with the collector of PNP triode Q3, capacitor C3
Cathode be connected with the ground terminal GND1 of switching power source chip S1 after be grounded, the switch terminals SW1 and inductance of switching power source chip S1
L1 connection, connection with resistance R18 and capacitor C5 after the voltage output end VOUT1 of switching power source chip S1 is connect with resistance R17
End is connected, and the other end ground connection of resistance R17, resistance R18 is connect after being connected with the other end of capacitor C5 with the other end of inductance L1,
It connect after connecting with the connecting pin of the anode of capacitor C4 and supply voltage VBAT, the cathode ground connection of capacitor C4.Switching Power Supply core
Piece has many advantages, such as that high-efficient, stability is good, small in size, keeps whole device control more stable, is easily installed.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (6)
1. a kind of super low-power consumption gas meter, flow meter includes gas meter, flow meter, it is characterised in that: also include voltage automatic classification compensation circuit, institute
Stating voltage automatic classification compensation circuit includes voltage comparator circuit, transistor amplifier, power control circuit, the voltage ratio
It is connected compared with the output end of circuit and the input terminal of transistor amplifier, output end and power supply the control electricity of transistor amplifier
Road connection, the power control circuit connect gas meter, flow meter, and the voltage comparator circuit includes operational amplification circuit and pressure stabilizing electricity
Road.
2. a kind of super low-power consumption gas meter, flow meter as described in claim 1, it is characterised in that: the operational amplification circuit includes operation
The positive input of amplifier P1 and PNP triode bias amplifier, the operational amplifier P1 connects resistance R1, resistance
The other end of R1 is connected with the connecting pin of resistance R3 and resistance R4, and the other end of resistance R3 accesses VIN, another termination of resistance R4
Ground, the reverse input end of operational amplifier P1 connect resistance R2, and the other end of resistance R2 and the output end of voltage regulator circuit connect, institute
The positive input for stating operational amplifier P1 is additionally provided with PNP triode bias amplifier, and the operational amplifier P1's is reversed
Input terminal biasing ground connection, the output end of operational amplifier P1 are connect with transistor amplifier.
3. a kind of super low-power consumption gas meter, flow meter as claimed in claim 2, it is characterised in that: the PNP triode biasing amplification electricity
Road includes PNP triode Q1, and the collector of PNP triode Q1 is connect with resistance R12, the other end ground connection of resistance R12, PNP tri-
Between the base stage and emitter of pole pipe Q1 be equipped with resistance R10, resistance R10 connect with the emitter of PNP triode Q1 after with capacitor
C1 is connected with the connecting pin of access voltage VDD, and the other end ground connection of capacitor C1, the base stage of PNP triode Q1 is connect with resistance R10
It is connect afterwards with resistance R11, resistance R11 is connect after connecting with operational amplifier P1 with access voltage VDD.
4. a kind of super low-power consumption gas meter, flow meter as claimed in claim 2, it is characterised in that: the voltage regulator circuit includes controllable accurate
Resistance R5 is equipped between the reference pole and anode of regulated power supply T1, controllable accurate regulated power supply T1, resistance R5 and controllable accurate are steady
The anode of voltage source T1, which is connected, to be grounded, and resistance R5 is connect after connecting with the reference pole of controllable accurate regulated power supply T1 with resistance R6,
The other end of resistance R6 is connect with resistance R7, and the other end of resistance R7 is connect with access voltage VDD, the company of resistance R7 and resistance R6
It connects after end is connect with the cathode of controllable accurate regulated power supply T1 and is connect with resistance R2, the cathode and electricity of controllable accurate regulated power supply T1
The connecting pin of resistance R2 is connect with resistance R8, and the other end of resistance R8 is connect with resistance R9, the other end ground connection of resistance R9.
5. a kind of super low-power consumption gas meter, flow meter as claimed in claim 2, it is characterised in that: the transistor amplifier includes
NPN triode amplifying circuit and PNP triode amplifying circuit, the NPN triode amplifying circuit include NPN triode Q2,
The PNP triode amplifying circuit includes PNP triode Q3, and electricity is equipped between the base stage and emitter of the NPN triode Q2
R13 is hindered, the emitter of NPN triode Q2 is grounded after being connected with resistance R13, after the base stage of NPN triode Q2 is connected with resistance R13
Connect with resistance R14, the other end of resistance R14 is connect with the output end of operational amplifier P1, the collector of NPN triode Q2 with
Resistance R15 connection, the other end of resistance R15 are connect with the base stage of PNP triode Q3, and connecting pin is connect with resistance R16, resistance
The other end of R16 is connect after connecting with the emitter of PNP triode Q3 with access voltage VDD and capacitor C2, and capacitor C2's is another
End ground connection, the collector of PNP triode Q3 are connect with power control circuit.
6. a kind of super low-power consumption gas meter, flow meter as described in claim 1, it is characterised in that: the power control circuit includes switch
Anode with capacitor C3 after the voltage input end VIN1 of power supply chip S1, switching power source chip S1 are connect with work input terminal RUN1
Connection, connecting pin are connected with the collector of PNP triode Q3, the cathode of capacitor C3 and the ground terminal of switching power source chip S1
GND1 is grounded after being connected, and the switch terminals SW1 of switching power source chip S1 is connect with inductance L1, the voltage output of switching power source chip S1
End VOUT1 is connected after connecting with resistance R17 with the connecting pin of resistance R18 and capacitor C5, the other end ground connection of resistance R17, resistance
R18 is connect after being connected with the other end of capacitor C5 with the other end of inductance L1, electric with the anode and power supply of capacitor C4 after connection
Press the connecting pin connection of VBAT, the cathode ground connection of capacitor C4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000229.1U CN209131750U (en) | 2018-11-30 | 2018-11-30 | A kind of super low-power consumption gas meter, flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000229.1U CN209131750U (en) | 2018-11-30 | 2018-11-30 | A kind of super low-power consumption gas meter, flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209131750U true CN209131750U (en) | 2019-07-19 |
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ID=67247608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822000229.1U Active CN209131750U (en) | 2018-11-30 | 2018-11-30 | A kind of super low-power consumption gas meter, flow meter |
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| Country | Link |
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| CN (1) | CN209131750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612544A (en) * | 2018-11-30 | 2019-04-12 | 重庆前卫克罗姆表业有限责任公司 | A kind of gas meter, flow meter that can passively switch power supply |
-
2018
- 2018-11-30 CN CN201822000229.1U patent/CN209131750U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612544A (en) * | 2018-11-30 | 2019-04-12 | 重庆前卫克罗姆表业有限责任公司 | A kind of gas meter, flow meter that can passively switch power supply |
| CN109612544B (en) * | 2018-11-30 | 2024-03-26 | 重庆前卫表业有限公司 | Gas meter capable of passively switching power supply |
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Address after: 401121 No. 69, Mount Huangshan Avenue, Yubei District, Chongqing Patentee after: Chongqing Qianwei watch Co., Ltd Address before: 401121 No. 69, Mount Huangshan Avenue, Yubei District, Chongqing Patentee before: QIANWEI KROMSCHRODER METERS (CHONGQING) Co.,Ltd. |