CN206564461U - A kind of night vision device non-charging battery reverse connecting protection and low pressure warning circuit - Google Patents
A kind of night vision device non-charging battery reverse connecting protection and low pressure warning circuit Download PDFInfo
- Publication number
- CN206564461U CN206564461U CN201720190002.0U CN201720190002U CN206564461U CN 206564461 U CN206564461 U CN 206564461U CN 201720190002 U CN201720190002 U CN 201720190002U CN 206564461 U CN206564461 U CN 206564461U
- Authority
- CN
- China
- Prior art keywords
- resistance
- night vision
- reverse connecting
- connecting protection
- voltage
- 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.)
- Active
Links
Abstract
The utility model is related to night vision device non-charging battery reverse connecting protection and low pressure warning circuit, the night vision device low-voltage alarm powered for non-charging battery and battery reverse connecting protection.It is made up of battery reverse connecting protection part, supply voltage regulation part and voltage sample part, with small volume, circuit components are few, the advantages of low in energy consumption.Using battery powered night vision device in brownout, low-voltage alarm is carried out by circuit, informs that user changes the remaining working time of battery and product in time, it is to avoid night vision device dead battery capability causes shutdown, and the strike being caught unprepared is brought to user.Non-charging battery reversal connection alarm and low-voltage alarm available for equipment such as the hand-held night-vision equipment of individual soldier, individual soldier's night vision sight device, pilot's night vision goggles.
Description
Technical field
The utility model, which belongs to, is related to night vision technology field, electronic circuit design field.
Background technology
Individual soldier's night-vision equipment and pilot's night vision goggles etc. are more in use to be powered using non-charging battery.Night vision
Instrument is using image intensifier as core, and image intensifier electric system is relatively independent, it is impossible to which the electricity of supplying cell is shown in real time,
Night vision device causes shutdown due to dead battery capability in use, and the strike being caught unprepared can be brought to user.Therefore, design
Night vision device low-voltage warning circuit, when exhausting also poor certain storing electricity apart from battery, is alerted by circuit, is pointed out
User also has battery to exhaust.
In the prior art, some night vision instruments are alarmed without low-voltage, and some night vision instruments have low-voltage alarm, Duo Shuotong
Cross the processor chips such as single-chip microcomputer to detect voltage, circuit is complicated, adds the volume and power consumption of night vision instrument product.
Prior art shortcoming：Circuit is complicated, component is more, volume is big, power consumption is big.
The content of the invention
The technical problems to be solved in the utility model is that circuit of the present invention is simple, only managed by electric capacity, resistance, MOSFET,
Amplifier etc. is achieved that the low-voltage alarm of night vision product, and small volume, circuit components are few, low in energy consumption, while having battery anti-
Connect defencive function.
In order to solve the above-mentioned technical problem, the utility model provides following technical scheme：
A kind of night vision device non-charging battery reverse connecting protection and low pressure warning circuit, including two low-light level tubes in parallel（E1、
E2）, supplying cell G, it is characterised in that supplying cell and parallel connection low-light level tube between, described night vision device non-charging battery
Reverse connecting protection and low pressure warning circuit also include：
It is connected with the supplying cell G, the battery reverse connecting protection part alarmed during for night vision device battery reversal connection
（01）.
Respectively with the battery reverse connecting protection part（01）And low-light level tube（E1、E2）Connection, alarm voltage is adjusted
Supply voltage regulation part（02）.
Respectively with battery reverse connecting protection part（01）Connected with supply voltage regulation part（02）, Acquisition Circuit supply voltage
And the voltage sample part being compared with alarm voltage（03）.
Further, described battery reverse connecting protection part（01）Managed for MOSFET（N2）, described MOSFET pipes（N2）
Drain electrode is connected with power switch, described MOSFET pipes（N2）Source electrode adjusts part with supply voltage（02）Connection, it is described
MOSFET is managed（N2）Grid is connected with ground terminal.
Further, described voltage-regulation part（02）, including 2 resistance（R7、R8）, 2 electric capacity（C2、C3）And the
One transport and placing device（N1）Composition, resistance（R7）With electric capacity（C3）After parallel connection with（R8）It is connected in series between power supply and ground terminal, and makees
For the first transport and placing device（N1）Inverting input（8）The input of pin, the first transport and placing device（N1）In-phase input end（4）Pin connects with ground terminal
Connect, electric capacity（C2）It is connected between power supply and ground terminal.
Further, described voltage sample part（03）, including 6 resistance（R1、R2、R3、R4、R5、R6）With 1 electricity
Hold（C1）And second transport and placing device（N3）, resistance（R1）It is used as the second transport and placing device（N3）Inverting input（2）The input of pin is simultaneously
With electric capacity（C1）Between series-connection power supplies and ground terminal, resistance（R2）With resistance（R1）The second transport and placing device is connected to after series connection（N3）It is defeated
Go out end（6）Pin, and and resistance（R6）LED alarms, resistance are connected after series connection（R3）With resistance（R4）Second is connected to after series connection
Transport and placing device（N3）Output end（6）Pin, and and resistance（R6）LED alarms, resistance are connected after series connection（R5）It is connected to the second fortune
Put device（N3）In-phase input end（3）Between pin and ground terminal, and and resistance（R3）, resistance（R4）Series connection at be connected.
Further, between described supplying cell and battery reverse connecting protection part, it is serially connected with power switch.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and constitutes a part for specification, with this practicality
New embodiment is used to explain the utility model together, does not constitute to limitation of the present utility model.In the accompanying drawings：
Fig. 1 night vision device non-charging battery reverse connecting protections and low pressure warning circuit logic schematic diagram；
Fig. 2 night vision device non-charging battery reverse connecting protections and low pressure warning circuit embodiments structure chart；
Description of reference numerals：01- battery reverse connecting protections part, 02- supply voltages regulation part, 03- voltage samples part.
Embodiment
Preferred embodiment of the present utility model is illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein excellent
Select embodiment to be merely to illustrate and explain the utility model, be not used to limit the utility model.
Such as Fig. 1, illustrate the operation principle and process of night vision device non-charging battery reverse connecting protection and low pressure warning circuit：
Night vision device start after, first check for supplying cell whether reversal connection, alarmed if reversal connection.Adjusted by supply voltage
The good alarm voltage value V1 of section sets, during normal battery operation, voltage sample part collection voltage value V2, and compare V1,
V2 sizes, when sampled voltage is less than alarm voltage（V1<V2）Alarmed.
As shown in Figure 2：
During normal work, battery is managed by MOSFET（N2）To the low-light level tube of lll night vision instrument（E1、E2）It is powered.
The non-reversal connection state of battery, night vision device has been at conducting state.Described MOSFET pipes（N2）Source electrode and supply voltage adjustment portion
Point（02）Connection, described MOSFET pipes（N2）Grid is connected with ground terminal.
Further, described voltage-regulation part（02）, including 2 resistance（R7、R8）, 2 electric capacity（C2、C3）And the
One transport and placing device（N1）Composition, resistance（R7）With electric capacity（C3）After parallel connection with（R8）It is connected in series between power supply and ground terminal, and makees
For the first transport and placing device（N1）Inverting input（8）The input of pin, the first transport and placing device（N1）In-phase input end（4）Pin connects with ground terminal
Connect, electric capacity（C2）It is connected in series between power supply and ground terminal.
Further, described voltage sample part（03）, including 6 resistance（R1、R2、R3、R4、R5、R6）With 1 electricity
Hold（C1）And second transport and placing device（N3）, resistance（R1）It is used as the second transport and placing device（N3）Inverting input（2）The input of pin is simultaneously
With electric capacity（C1）Between series-connection power supplies and ground terminal, resistance（R2）With resistance（R1）The second transport and placing device is connected to after series connection（N3）It is defeated
Go out end（6）Pin, and and resistance（R6）LED alarms, resistance are connected after series connection（R3）With resistance（R4）Second is connected to after series connection
Transport and placing device（N3）Output end（6）Pin, and and resistance（R6）LED alarms, resistance are connected after series connection（R5）It is connected to the second fortune
Put device（N3）In-phase input end（3）Between pin and ground terminal, and and resistance（R3）, resistance（R4）Series connection at be connected.
Alarm voltage is configured by R7 and R8 ratio, and transport and placing device N1 8 pin voltage V8 and 4 pin voltages are carried out
Compare, pin 4 is the reference voltage V4 of chip internal, works as V8>During V4, the output of pin 1 V1 is low level, LED reports below
Alert device does not work, without alarm.Work as V8<During V4, the output of pin 1 V1 is high level, LED alarm equipment alarms below.
In the present embodiment, the reference voltage V4 of the chip internal of pin 4 is 0.2V, is realized when charge capacity is less than 0.2V Times
It is alert.
Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, this is not limited to
Utility model is invented, although the utility model is described in detail with reference to the foregoing embodiments, for the technology of this area
For personnel, it can still modify to the technical scheme described in foregoing embodiments, or to which part technology
Feature carries out equivalent substitution.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc.,
It should be included within protection scope of the present invention.
Claims (5)
1. a kind of night vision device non-charging battery reverse connecting protection and low pressure warning circuit, including two low-light level tubes in parallel（E1、E2）、
Supplying cell G, it is characterised in that between supplying cell and the low-light level tube of parallel connection, described night vision device non-charging battery reversal connection
Protection and low pressure warning circuit also include：
It is connected with the supplying cell G, the battery reverse connecting protection part alarmed during for night vision device battery reversal connection（01）；
Respectively with the battery reverse connecting protection part（01）And low-light level tube（E1、E2）Connection, the electricity that alarm voltage is adjusted
Source voltage-regulation part（02）；
Respectively with battery reverse connecting protection part（01）Part is adjusted with supply voltage（02）Connection, Acquisition Circuit supply voltage and with
The voltage sample part that alarm voltage is compared（03）.
2. night vision device non-charging battery reverse connecting protection according to claim 1 and low pressure warning circuit, it is characterized in that：It is described
Battery reverse connecting protection part（01）Managed for MOSFET（N2）, described MOSFET pipes（N2）Drain electrode is connected with power switch, institute
The MOSFET pipes stated（N2）Source electrode adjusts part with supply voltage（02）Connection, described MOSFET pipes（N2）Grid connects with ground terminal
Connect.
3. night vision device non-charging battery reverse connecting protection according to claim 1 and low pressure warning circuit, it is characterized in that：It is described
Voltage-regulation part（02）, including 2 resistance（R7、R8）, 2 electric capacity（C2、C3）And first transport and placing device（N1）Composition, resistance
（R7）With electric capacity（C3）After parallel connection with（R8）It is connected in series between power supply and ground terminal, and is used as the first transport and placing device（N1）It is anti-phase defeated
Enter to hold pin（8）Input, the first transport and placing device（N1）In-phase input end pin（4）It is connected with ground terminal, electric capacity（C2）It is connected to power supply
Between ground terminal.
4. night vision device non-charging battery reverse connecting protection according to claim 1 and low pressure warning circuit, it is characterized in that：It is described
Voltage sample part（03）, including 6 resistance（R1、R2、R3、R4、R5、R6）With 1 electric capacity（C1）And second transport and placing device
（N3）, resistance（R1）It is used as the second transport and placing device（N3）Inverting input pin（2）Input simultaneously and electric capacity（C1）Series-connection power supplies
Between ground terminal, resistance（R2）With resistance（R1）The second transport and placing device is connected to after series connection（N3）Output end pin（6）, and and resistance
（R6）LED alarms, resistance are connected after series connection（R3）With resistance（R4）The second transport and placing device is connected to after series connection（N3）Output end
Pin（6）, and and resistance（R6）LED alarms, resistance are connected after series connection（R5）It is connected to the second transport and placing device（N3）Homophase input
Hold pin（3）Between ground terminal, and and resistance（R3）, resistance（R4）Series connection at be connected.
5. the night vision device non-charging battery according to claim 1 or claim 2 or claim 3 or claim 4 is anti-
Protection and low pressure warning circuit are connect, it is characterized in that：Between described supplying cell and battery reverse connecting protection part, power supply is concatenated
Switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720190002.0U CN206564461U (en) | 2017-03-01 | 2017-03-01 | A kind of night vision device non-charging battery reverse connecting protection and low pressure warning circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720190002.0U CN206564461U (en) | 2017-03-01 | 2017-03-01 | A kind of night vision device non-charging battery reverse connecting protection and low pressure warning circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206564461U true CN206564461U (en) | 2017-10-17 |
Family
ID=60031287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720190002.0U Active CN206564461U (en) | 2017-03-01 | 2017-03-01 | A kind of night vision device non-charging battery reverse connecting protection and low pressure warning circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206564461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655108A (en) * | 2017-03-01 | 2017-05-10 | 江苏北方湖光光电有限公司 | Non-rechargeable battery-powered inverse connection protection and low-voltage alarm circuit for night-vision device |
-
2017
- 2017-03-01 CN CN201720190002.0U patent/CN206564461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655108A (en) * | 2017-03-01 | 2017-05-10 | 江苏北方湖光光电有限公司 | Non-rechargeable battery-powered inverse connection protection and low-voltage alarm circuit for night-vision device |
| CN106655108B (en) * | 2017-03-01 | 2019-03-19 | 江苏北方湖光光电有限公司 | A kind of night vision device non-charging battery reverse connecting protection and low pressure warning circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206060339U (en) | A kind of collection of energy and storage device | |
| CN206564461U (en) | A kind of night vision device non-charging battery reverse connecting protection and low pressure warning circuit | |
| CN203800663U (en) | Mobile power supply | |
| CN106655108B (en) | A kind of night vision device non-charging battery reverse connecting protection and low pressure warning circuit | |
| CN207977724U (en) | A kind of fire-fighting two lines bus short-circuit protection circuit of hand-held encoder | |
| CN206673631U (en) | A kind of battery charger | |
| CN206226085U (en) | Lithium battery heating protecting device | |
| CN206100553U (en) | Take real -time protect function's emergent LED lighting circuit | |
| CN205051407U (en) | Lithium batteries protects controller | |
| CN209265308U (en) | A kind of lithium battery group electric current output system based on Bluetooth of mobile phone control | |
| CN209233457U (en) | A kind of battery protection system | |
| CN204103480U (en) | A kind of charger reversal connection and short-circuit protection circuit | |
| CN207321110U (en) | One kind powers on buffer circuit | |
| CN206341021U (en) | A kind of harvester for energy of being pulsed based on human body | |
| CN204536410U (en) | For body temperature generating and the electricity generation situation supervisory circuit of Intelligent worn device | |
| CN205509603U (en) | Double T L431 voltage monitoring circuit | |
| CN204835677U (en) | Battery charging circuit that connects in parallel | |
| CN205121883U (en) | Infrared remote control of farad electric capacity power supply | |
| CN205646857U (en) | Mobile power source circuit | |
| CN204559124U (en) | A kind of based on the cell anti-reverse device of lithium battery photovoltaic against Ore-controlling Role | |
| CN204905983U (en) | Automobile staring presss from both sides reinforcing system of discharging | |
| CN106253238B (en) | A kind of battery low-voltage latching circuit | |
| CN110138057B (en) | Solar charger control circuit and solar charger | |
| CN211405534U (en) | Power supply circuit of mobile equipment | |
| CN216851352U (en) | Battery pack charging monitoring circuit, device and equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |