CN206807112U - A kind of farad capacitor circuit capable of delaying disconnection suitable for intelligent cabinet control system - Google Patents
A kind of farad capacitor circuit capable of delaying disconnection suitable for intelligent cabinet control system Download PDFInfo
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- CN206807112U CN206807112U CN201720391391.3U CN201720391391U CN206807112U CN 206807112 U CN206807112 U CN 206807112U CN 201720391391 U CN201720391391 U CN 201720391391U CN 206807112 U CN206807112 U CN 206807112U
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Abstract
The utility model discloses a kind of farad capacitor circuit capable of delaying disconnection suitable for intelligent cabinet control system, including voltage-stablizer ASM2, fuse F3, triode Q2 and FET PMOS2, described fuse F3 one end connects fuse F4 and 5V dc source respectively, the fuse F3 other ends connect resistance R12 respectively, resistance R13 and FET PMOS2 S poles, the resistance R12 other ends connect resistance R14 and triode Q2 base stages respectively, triode Q2 emitter stages connect the resistance R14 other ends and are grounded, triode Q2 colelctor electrodes connect the resistance R13 other ends and FET PMOS2 G poles respectively.The utility model realizes zero based on farad capacitor delay power supply and prolongs the functions such as zero pressure difference power switching, farad capacitor charge and discharge protecting, so as to ensure that system is reliably run for a long time.
Description
Technical field
It the utility model is related to a kind of circuit capable of delaying disconnection, specifically a kind of farad suitable for intelligent cabinet control system
Electric capacity circuit capable of delaying disconnection.
Background technology
Intelligent monitoring device cabinet main frame is based on 32 arm processor multiple task operating system platform developments, built-in powerful WEB
Server configuration feature, it is miniaturization for system developments such as intelligent transportation, urban public security, communication base station, outdoor cabinets, Gao Ke
Data acquisition, control unit by property, realize to work(such as the monitoring of field apparatus teledata, electrical control and abnormal alarm processing
Energy.But it is big the temperature difference inside Cabinet to be present（Daytime in summer, winter nights can as little as -20 degree up to 50 degree）The problem of, pass
The power supply modes such as lithium battery, lead battery of uniting can not reliably ensure the operation drawback of system for a long time.
Utility model content
The purpose of this utility model is to provide a kind of farad capacitor delay cut-off suitable for intelligent cabinet control system
Circuit, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of farad capacitor circuit capable of delaying disconnection suitable for intelligent cabinet control system, including voltage-stablizer ASM2, insurance
Silk F3, triode Q2 and FET PMOS2, described fuse F3 one end connect fuse F4 and 5V dc source respectively, protect
The dangerous silk F3 other ends connect resistance R12, resistance R13 and FET PMOS2 S poles respectively, and the resistance R12 other ends connect respectively
Resistance R14 and triode Q2 base stages, the triode Q2 emitter stages connection resistance R14 other ends are simultaneously grounded, triode Q2 colelctor electrodes point
Not Lian Jie the resistance R13 other ends and FET PMOS2 G poles, FET PMOS2 D poles connect electric capacity C14, electricity respectively
Hold C13 and voltage-stablizer ASM2 input, it is another that voltage-stablizer ASM2 earth terminal connects the electric capacity C13 other ends, electric capacity C14 respectively
End, electric capacity C10 and electric capacity C12 are simultaneously grounded, and the electric capacity C10 other ends connect the two of the electric capacity C12 other ends and voltage-stablizer ASM2 respectively
Individual output end, the fuse F4 other ends connect diode D4 positive poles and resistance R19 respectively, and the resistance R19 other ends connect respectively
Connecting resistance R20 and triode Q4 base stages, triode Q4 colelctor electrodes connect resistance R18 and resistance R17, the resistance R17 other ends respectively
Resistance R16, FET PMOS3 S poles, resistance RX1, single-chip microcomputer CN1 pins 5 and resistance R15, farad capacitor are connected respectively
The C15 other ends connect respectively fuse PT, resistance R21, resistance RISET1, triode Q3 emitter stages, triode Q4 emitter stages and
Resistance R20 is simultaneously grounded, and the resistance R20 other ends connect the resistance R19 other ends and triode Q4 base stages respectively, and the fuse PT is another
One end connects the resistance R21 other ends, resistance R22 and single-chip microcomputer CN1 pins 1 respectively, and single-chip microcomputer CN1 pins 2 connect resistance
The RISET1 other ends, single-chip microcomputer CN1 pins 5 connect electric capacity C17 and are grounded, and the electric capacity C17 other ends connect resistance R15, two respectively
Pole pipe D4 negative poles and single-chip microcomputer CN1 pins 4, resistance R15 other ends difference connecting luminous diode LED3 positive poles and light-emitting diodes
Pipe LED4 positive poles, the negative pole of LED 3 connection single-chip microcomputer CN1 pins 6, the negative pole of LED 4 connection single-chip microcomputer
CN1 pins 7.
As further program of the utility model：The voltage-stablizer ASM2 models ASM1117-3.3V.
As the utility model further scheme：The single-chip microcomputer CN1 models CN3153.
Compared with prior art, the beneficial effects of the utility model are：The utility model is based on farad capacitor delay power supply
Realize zero and prolong the functions such as zero pressure difference power switching, farad capacitor charge and discharge protecting, so as to ensure that system is reliably transported for a long time
OK.
Brief description of the drawings
Fig. 1 is the circuit diagram suitable for the farad capacitor circuit capable of delaying disconnection of intelligent cabinet control system.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1, in the utility model embodiment, a kind of farad capacitor suitable for intelligent cabinet control system is delayed
Power-down circuit, including voltage-stablizer ASM2, fuse F3, triode Q2 and FET PMOS2, fuse F3 one end difference
Fuse F4 and 5V dc source is connected, the fuse F3 other ends connect resistance R12, resistance R13 and FET PMOS2 respectively
S poles, the resistance R12 other ends connect resistance R14 and triode Q2 base stages respectively, and triode Q2 emitter stages connection resistance R14 is another
One end is simultaneously grounded, and triode Q2 colelctor electrodes connect the resistance R13 other ends and FET PMOS2 G poles, FET respectively
PMOS2 D poles connect electric capacity C14, electric capacity C13 and voltage-stablizer ASM2 input, voltage-stablizer ASM2 earth terminal difference respectively
The connection electric capacity C13 other ends, the electric capacity C14 other ends, electric capacity C10 and electric capacity C12 are simultaneously grounded, and the electric capacity C10 other ends connect respectively
Two output ends of the electric capacity C12 other ends and voltage-stablizer ASM2, the fuse F4 other ends connect diode D4 positive poles respectively
With resistance R19, the resistance R19 other ends connect resistance R20 and triode Q4 base stages respectively, and triode Q4 colelctor electrodes connect electricity respectively
R18 and resistance R17 is hindered, the resistance R17 other ends connect resistance R16, FET PMOS3 S poles, resistance RX1, single-chip microcomputer respectively
CN1 pins 5 and resistance R15, the farad capacitor C15 other ends connect fuse PT, resistance R21, resistance RISET1, triode respectively
Q3 emitter stages, triode Q4 emitter stages and resistance R20 are simultaneously grounded, and the resistance R20 other ends connect the resistance R19 other ends and three respectively
Pole pipe Q4 base stages, the fuse PT other ends connect the resistance R21 other ends, resistance R22 and single-chip microcomputer CN1 pins 1 respectively, single
Piece machine CN1 pins 2 connect the resistance RISET1 other ends, and single-chip microcomputer CN1 pins 5 connect electric capacity C17 and are grounded, and electric capacity C17 is another
End connects resistance R15, diode D4 negative poles and single-chip microcomputer CN1 pins 4, the resistance R15 other ends and connects light-emitting diodes respectively respectively
Pipe LED3 positive poles and the positive pole of LED 4, the negative pole of LED 3 connection single-chip microcomputer CN1 pins 6, light-emitting diodes
Pipe LED4 negative poles connection single-chip microcomputer CN1 pins 7, the voltage-stablizer ASM2 models ASM1117-3.3V, the single-chip microcomputer CN1 types
Number it is CN3153.
Operation principle of the present utility model is：
1. when 5V dc sources start power supply, triode Q2 base voltages are 4.5V through R12, R14 partial pressure, and Q2 is turned on,
PMOS2 grid Gs voltage is 0V, PMOS2 conductings, and because of metal-oxide-semiconductor characteristic, the partial circuit can be realized when electric on outside, monolithic
Machine CN1 zero propagations are powered, and are not influenceed by stand-by power supply.In 5V dc source power down, Q2 base voltages are 0V, PMOS2 grid
Pole G voltages have C15 offers, and when C15 is in discharge condition, PMOS2 is closed, and cut-off 5V dc sources are by PMOS2
DC5V is flowed to, realizes and is only powered for the system.
2. when voltage is relatively low, single-chip microcomputer CN1 is in the pattern of trickle charge 1, and trickle-charge current may be selected to be constant current and fill
The 10% of electric current.Single-chip microcomputer CN1 charging current I=1218V/RISET1 is selected, in charging complete, automatically into low work(
Consumption pattern, now current drain is less than 3 microamperes.By when input voltage power down, single-chip microcomputer CN1 automatically into sleep pattern,
Single-chip microcomputer CN1 also has charging short-circuit protection simultaneously, the too low latch of input voltage, recharges automatically, charged state/charging terminates
The functions such as state instruction.
3. in the power supply of 5V dc sources constantly, farad capacitor C15 is charged by CN1, Q4 base voltages are through R19, R20
Partial pressure is 4.5V, Q4 conductings, is closed Q3 base voltages 0V, Q3, PMOS3 grid Gs voltage is 5V, and PMOS3 is in
Closed mode, CN1 only charge to C15.When DC5V is in power down, CN1 is automatically into low-power consumption mode, Q4 base voltages
For 0V, Q4 base voltages are C15 cathode voltages（5V）, Q4 is in opening state, and PMOS3 grid Gs voltage is 0V, and PMOS3 is in
Conducting state, now there are C15 electric discharges to provide power supply for SCM system.PMOS3 is zero pressure difference device, it is achieved that system is electric
Pressure zero prolongs zero pressure difference power switching.
C15 calculation of capacity modes：C=(Vwork+ Vmin)It/( Vwork2 -Vmin2)
Job initiation voltage Vwork=5V
Work blanking voltage Vmin=4.0V
Working time t=20s
Working power I=1A
So required capacitance is：
C=(Vwork+ Vmin)It/( Vwork2 -Vmin2)
=(5.2+4.2)*1*20/(5.2 -4.2)
=18.8F。
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (3)
1. a kind of farad capacitor circuit capable of delaying disconnection suitable for intelligent cabinet control system, including voltage-stablizer ASM2, fuse
F3, triode Q2 and FET PMOS2, it is characterised in that it is straight that described fuse F3 one end connects fuse F4 and 5V respectively
Power supply is flowed, the fuse F3 other ends connect resistance R12, resistance R13 and FET PMOS2 S poles respectively, and resistance R12 is another
End connects resistance R14 and triode Q2 base stages respectively, and the triode Q2 emitter stages connection resistance R14 other ends are simultaneously grounded, triode
Q2 colelctor electrodes connect the resistance R13 other ends and FET PMOS2 G poles respectively, and FET PMOS2 D poles connect respectively
Electric capacity C14, electric capacity C13 and voltage-stablizer ASM2 input, voltage-stablizer ASM2 earth terminal connect respectively the electric capacity C13 other ends,
The electric capacity C14 other ends, electric capacity C10 and electric capacity C12 are simultaneously grounded, and the electric capacity C10 other ends connect the electric capacity C12 other ends and voltage stabilizing respectively
Device ASM2 two output ends, the fuse F4 other ends connect diode D4 positive poles and resistance R19 respectively, and resistance R19 is another
One end connects resistance R20 and triode Q4 base stages respectively, and triode Q4 colelctor electrodes connect resistance R18 and resistance R17, resistance respectively
The R17 other ends connect resistance R16, FET PMOS3 S poles, resistance RX1, single-chip microcomputer CN1 pins 5 and resistance R15 respectively,
The farad capacitor C15 other ends connect fuse PT, resistance R21, resistance RISET1, triode Q3 emitter stages, triode Q4 respectively
Emitter stage and resistance R20 are simultaneously grounded, and the resistance R20 other ends connect the resistance R19 other ends and triode Q4 base stages, the guarantor respectively
The dangerous silk PT other ends connect the resistance R21 other ends, resistance R22 and single-chip microcomputer CN1 pins 1 respectively, and single-chip microcomputer CN1 pins 2 connect
The resistance RISET1 other ends, single-chip microcomputer CN1 pins 5 connect electric capacity C17 and are grounded, and the electric capacity C17 other ends connect resistance respectively
R15, diode D4 negative poles and single-chip microcomputer CN1 pins 4, resistance R15 other ends difference connecting luminous diode LED3 positive poles and hair
Optical diode LED4 positive poles, the negative pole of LED 3 connection single-chip microcomputer CN1 pins 6, the connection of the negative pole of LED 4
Single-chip microcomputer CN1 pins 7.
2. the farad capacitor circuit capable of delaying disconnection according to claim 1 suitable for intelligent cabinet control system, its feature
It is, the voltage-stablizer ASM2 models ASM1117-3.3V.
3. the farad capacitor circuit capable of delaying disconnection according to claim 1 suitable for intelligent cabinet control system, its feature
It is, the single-chip microcomputer CN1 models CN3153.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720391391.3U CN206807112U (en) | 2017-04-14 | 2017-04-14 | A kind of farad capacitor circuit capable of delaying disconnection suitable for intelligent cabinet control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720391391.3U CN206807112U (en) | 2017-04-14 | 2017-04-14 | A kind of farad capacitor circuit capable of delaying disconnection suitable for intelligent cabinet control system |
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| CN206807112U true CN206807112U (en) | 2017-12-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465247A (en) * | 2017-04-14 | 2017-12-12 | 临沂市华夏高科信息有限公司 | A kind of farad capacitor circuit capable of delaying disconnection suitable for intelligent cabinet control system |
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2017
- 2017-04-14 CN CN201720391391.3U patent/CN206807112U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465247A (en) * | 2017-04-14 | 2017-12-12 | 临沂市华夏高科信息有限公司 | A kind of farad capacitor circuit capable of delaying disconnection suitable for intelligent cabinet control system |
| CN107465247B (en) * | 2017-04-14 | 2024-05-03 | 山东华夏高科信息股份有限公司 | Faraday capacitor delay power-off circuit suitable for intelligent cabinet control system |
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