CN209150781U - A kind of uninterrupted fast charging and discharging DC power supply of industry solving Problem of Voltage Temporary-Drop - Google Patents
A kind of uninterrupted fast charging and discharging DC power supply of industry solving Problem of Voltage Temporary-Drop Download PDFInfo
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- CN209150781U CN209150781U CN201920046110.XU CN201920046110U CN209150781U CN 209150781 U CN209150781 U CN 209150781U CN 201920046110 U CN201920046110 U CN 201920046110U CN 209150781 U CN209150781 U CN 209150781U
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Abstract
The utility model provides a kind of uninterrupted fast charging and discharging DC power supply of the industry for solving Problem of Voltage Temporary-Drop, is related to electrical equipment.Including AC-DC decompression, super capacitor charge and discharge, diode selecting and DC-DC 4 circuits of boosting；The AC-DC reduction voltage circuit includes WIMA capacitor, varistor, fuse, AC-DC power module, π type filter circuit, filter capacitor and zener diode；The super capacitor charge/discharge includes charging diode, current-limiting resistance group, super capacitor group, equalizing resistance group, charging voltage detection circuit and relay switch and its driving circuit；The diode selection circuit includes two diodes；The DC-DC booster circuit includes PWM wave driving circuit, push-pull type power conversion circuit, transformer, current rectifying and wave filtering circuit and sample circuit.When alternating current occurs to shake electricity or when abnormal interrupt situation, the present apparatus can continual offer direct current, prevent economic loss and safety accident caused by due to shaking electrical phenomena, hardware integration degree height, high reliablity.
Description
Technical field
The utility model relates to technical field of electric equipment, and in particular to it is a kind of solve Problem of Voltage Temporary-Drop industry not between
Disconnected fast charging and discharging DC power supply.
Background technique
Electric system in factory in the process of running, often due to lightning stroke, shorted to earth, failure reclosing, standby electricity
From reasons such as throwing, abnormal, the large scale equipment startings of power grid, causes network voltage instantaneously to fall and restore normal phenomenon, this electricity
Pressure moment fluctuate by a relatively large margin or referred to as voltage sag conditions the phenomenon that power interruption recovering, also known as shakes electric.
Electrical phenomena is shaken to the enterprise for requiring large number of equipment not allow motor tripping grinder in process flow in continuous production
Industry is catastrophic, is then gently economic loss, reduces production efficiency, heavy then it also occur that fire, explosion or even personal safety.It is existing
Having in technology has many uninterrupted DC power supplies, but volume is all very big, and charge and discharge are slow, the service life is short.
Utility model content
In view of the problems of the existing technology, it is uninterrupted to provide a kind of industry for solving Problem of Voltage Temporary-Drop for the utility model
Fast charging and discharging DC power supply can be rapidly switched to be powered by super capacitor, to industry spot when occurring to shake electricity or power-off
Stop device does not have defencive function, and has the characteristics that small in size, charge and discharge are quick, the service life is long, output voltage is adjustable.
The utility model provides a kind of uninterrupted fast charging and discharging DC power supply of the industry for solving Problem of Voltage Temporary-Drop, including
AC-DC reduction voltage circuit, super capacitor charge/discharge, diode selection circuit and DC-DC booster circuit；
The AC-DC reduction voltage circuit includes: WIMA capacitor, varistor, fuse, AC-DC power module, the filtering of π type
Circuit, filter capacitor and zener diode；The WIMA capacitor and varistor are attempted by between zero curve and firewire, zero curve and fire
Line simultaneously connects WIMA capacitor and varistor is followed by the input terminal of AD-DC power module, the output termination of the AD-DC power module
π type filter circuit, the π type filter circuit and filter capacitor and zener diode simultaneously connect, the output end of the zener diode
The input terminal of super capacitor charge/discharge and diode selection circuit is connect respectively, and the fuse connects in varistor and AD-
On firewire between DC power module；
The super capacitor charge/discharge includes charging diode, current-limiting resistance group, super capacitor group, equalizing resistance
Group, charging voltage detection circuit and relay switch and its driving circuit；The input termination AC-DC decompression of the charging diode
The output end of circuit, the input terminal of the output termination current-limiting resistance of charging diode, the output termination of the current-limiting resistance are super
The input terminal of capacitance group and equalizing resistance group, the equalizing resistance group is in parallel with super capacitor group, the relay switch and its
Driving circuit connects between the output end and diode selection circuit input terminal of super capacitor group；
The diode selection circuit includes two diodes, and there are two input terminal VCC 15V, VCC 13V and one for tool
Output end BAT；
The DC-DC booster circuit includes PWM wave driving circuit, push-pull type power conversion circuit, transformer, rectifying and wave-filtering
Circuit and sample circuit；The output end of the PWM wave driving circuit connects the control terminal of push-pull type power conversion circuit respectively, described
Push-pull type power conversion circuit input termination diode selection circuit output end, the push-pull type power conversion circuit it is defeated
The primary of transformer is terminated out, and the secondary of the transformer connects current rectifying and wave filtering circuit.
The utility model has the beneficial effects that
The utility model proposes a kind of uninterrupted DC power supply of industry for solving Problem of Voltage Temporary-Drop, hardware integration degree is high,
High reliablity.When alternating current occurs to shake electricity or when abnormal interrupt situation, the present apparatus can continual offer direct current, prevent because shaking
Electrical phenomena and caused by economic loss and safety accident.
Detailed description of the invention
Fig. 1 is the uninterrupted fast charging and discharging DC power supply of industry that Problem of Voltage Temporary-Drop is solved in the utility model embodiment
Structural block diagram；
Fig. 2 is the schematic diagram of AC-DC reduction voltage circuit in the utility model embodiment；
Fig. 3 is the schematic diagram of super capacitor group charge-discharge circuit in the utility model embodiment；
Fig. 4 is the schematic diagram of super capacitor group charging voltage sample circuit in the utility model embodiment；
Fig. 5 is the schematic diagram of relay and its driving circuit in the utility model embodiment；
Fig. 6 is the schematic diagram of diode selection circuit in the utility model embodiment；
Fig. 7 is the schematic diagram of PWM wave output circuit in the utility model embodiment；
Fig. 8 is the schematic diagram of push-pull type power conversion circuit in the utility model embodiment；
Fig. 9 is the schematic diagram that current rectifying and wave filtering circuit is flowed in the utility model embodiment；
Figure 10 is the schematic diagram of DC voltage and current sample in the utility model embodiment.
Specific embodiment
In order to be more clear the purpose of this utility model, technical solution and advantage, with reference to the accompanying drawing and it is embodied
Example is described in further details the utility model.Specific embodiment described herein only to explain the utility model, and
It is not used in restriction the utility model.
A kind of uninterrupted fast charging and discharging DC power supply of industry solving Problem of Voltage Temporary-Drop, as shown in Figure 1, including AC-
DC reduction voltage circuit, super capacitor charge/discharge, diode selection circuit and DC-DC booster circuit；
The AC-DC reduction voltage circuit, as shown in Figure 2, comprising: WIMA capacitor C4, varistor R11, fuse F1, AC-
DC power module U2, π type filter circuit, filter capacitor C6 and the zener diode D6 being made of C8, L1, C5；The WIMA electricity
Hold C4 and varistor R11 to be attempted by between zero curve N and firewire L, zero curve N and firewire L simultaneously connects WIMA capacitor C4 and varistor
R11 is followed by the input terminal of AD-DC power module U2, and the output of the AD-DC power module U2 terminates π type filter circuit, the π
Type filter circuit and filter capacitor C6 and zener diode D6 simultaneously connect, and the output end of the zener diode D6 connects super electricity respectively
Hold the input terminal of charge-discharge circuit and diode selection circuit, the fuse F1 connects in varistor R11 and AD-DC power supply mould
On firewire L between block U2, when late-class circuit short circuit, fuse F1 is disconnected, to protect the effect of late-class circuit.
In the present embodiment, 220V is after WIMA capacitor C4, varistor R11, fuse F1, by AD-DC power supply mould
220 exchanges are converted into being filtered after 15V direct current by 15V direct current of the pi type filter to output by block U2, using filtered electrical
Hold C6 to filter out after high frequency spurs by zener diode D6, guarantees to stablize output 15V direct current, finally all the way by charging two
Pole pipe D4 is super capacitor charging, and another way is subsequent conditioning circuit power supply by the end diode selection circuit VCC 15V.
The super capacitor charge/discharge, as shown in figure 3, including charging diode D4, current-limiting resistance group, super capacitor
Group, equalizing resistance group, charging voltage detection circuit and relay switch K1 and its driving circuit；The charging diode D4's is defeated
Enter to terminate the output end of AC-DC reduction voltage circuit, the input terminal of the output termination current-limiting resistance of charging diode D4, the current limliting electricity
The input terminal of output the termination super capacitor group and equalizing resistance group of resistance, the equalizing resistance group is in parallel with super capacitor group, institute
It states relay switch K1 and its driving circuit connects between the output end and diode selection circuit input terminal of super capacitor group.
In the present embodiment, current-limiting resistance group is composed in parallel by resistance R3, R4, R5, R7, R8, and super capacitor group is by super electricity
To hold C2, C3, C7, C9, C10, C11 to be composed in series, equalizing resistance group is composed in series by resistance R6, R10, R12, R14, R16, R18,
Super capacitor group is in parallel with equalizing resistance group, and each super capacitor with corresponding resistor coupled in parallel in equalizing resistance group, i.e.,
Super capacitor C2 is in parallel with resistance R6, super capacitor C3 is in parallel with resistance R10, super capacitor C7 is in parallel with resistance R12, super electricity
Appearance C9 is in parallel with resistance R14, super capacitor C10 is in parallel with resistance R16, super capacitor C11 is in parallel with resistance R18.Charging voltage
Detection circuit, as shown in figure 4, being made of resistance R9, R13, R15, R17, capacitor C12, operational amplifier U3A, resistance R9 and electricity
Resistance R13 series connection connects the homophase input of operational amplifier U3A between power supply and ground as the reference voltage of operational amplifier U3A
"+" is held, and the inverting input terminal of operational amplifier U3A connects the anode of super capacitor C11 to super capacitor group by resistance R17
Voltage is sampled, capacitor C12 be filter capacitor, connect between power supply and ground, resistance R15 be pull-up resistor, connect power supply with
Between 1 foot of operational amplifier.The driving circuit of relay switch K1, as shown in figure 5, by relay K1, resistance R1 and R2, capacitor
C1, diode D3, triode Q1, optocoupler U1 composition, 2 feet of optocoupler U1 connect 1 foot of operational amplifier, and 1 foot of optocoupler U1 is through electricity
Resistance R2 connects power supply, and 3 feet of optocoupler U1 connect 1 foot of triode Q1, and 4 feet of optocoupler U1 connect 3 feet and relay K1 line of triode Q1
One end of circle, the 2 feet ground connection of triode Q1, the other end of relay K1 coil meet power supply, capacitor C1 and resistance R1 through resistance R1
Parallel connection, diode D3 and relay K1 coils from parallel connection of coils.
In the present embodiment, current-limiting resistance group is limited by the electric current of charging diode D4, prevents AD-DC power supply mould
Block U2 causes the electricity reflux of super capacitor when powering off, cause overcurrent to burn out super capacitor, then by equalizing resistance group voltage
The each super capacitor being averagely allocated in super capacitor group prevents from burning out because of the voltage inequality by super capacitor super
Capacitor, then control when super capacitor is subsequent conditioning circuit power supply by the contact of relay K1, relay K1 is by relay driving
Circuit control, and relay drive circuit controls relay according to the signal that charging voltage detection circuit is given and when acts,
In the anode for passing through super capacitor C11 by charging voltage detection circuit sampling end resistance R17, when charging voltage detection circuit is examined
When measuring charging completely, the 1 foot output low level of the operational amplifier U3A in charging voltage detection circuit makes relay drive circuit
In optocoupler U1 conducting, triode Q1 is connected in optocoupler U1, and triode Q1 acts relay K1, and capacitor C1 leads in triode Q1
It being started to charge after logical, capacitor C1 is equivalent to short circuit when charging, relay K1 quick acting can be made, and be attracted in guard relay
When electric current by resistance R1 make relay K1 keep attracting state, can make in such a way that capacitor C1 is in parallel with resistance R1
Relay is quick in movement, and is low current work in guard relay K1 action state, plays the role of power saving, relay
Device K1 opened point closure makes input terminal of the output of super capacitor by the contact of relay K1 Jing Guo diode selection circuit
VCC 13V is subsequent conditioning circuit power supply.
The diode selection circuit, as shown in fig. 6, including two diodes D1 and D5, there are two input terminal VCC for tool
15V, VCC 13V and output end BAT, two which road roads voltage Gao Na input terminal VCC 15V and VCC 13V will be connected and be
Subsequent conditioning circuit power supply, another way diode, which can end, to be not turned on.
The DC-DC booster circuit includes PWM wave driving circuit, push-pull type power conversion circuit, transformer T1, rectification filter
Wave circuit and sample circuit；The output end of the PWM wave driving circuit meets the control terminal of push-pull type power conversion circuit, institute respectively
The output end of the input termination diode selection circuit of push-pull type power conversion circuit is stated, the push-pull type power conversion circuit
The primary of output termination transformer, the secondary of the transformer connect current rectifying and wave filtering circuit.
In the present embodiment, PWM wave output circuit is as shown in fig. 7, pass through push-pull type power conversion circuit for the PWM wave of output
Two control terminals PWM1 and PWM2 drive two metal-oxide-semiconductors to work alternatively, to achieve the effect that high-speed switch, push-pull type power
For translation circuit as shown in figure 8, its input terminal BAT meets diode selection circuit output end BAT, output termination transformer T1's is first
Grade becomes the 15V direct current of the PWM wave exported by PWM wave output circuit control diode selection circuit output by transformer T1
Change 400V direct current into, current rectifying and wave filtering circuit is as shown in figure 9, by diode D7, D8, D10, D11, D9, resistance R26, R30, capacitor
C26, C24 composition, the secondary of the input termination transformer T1 of current rectifying and wave filtering circuit, the exchange for exporting T1 grade of transformer
Become direct current, D9, R26, C26 in current rectifying and wave filtering circuit play the role of absorbing due to voltage spikes, the filter in current rectifying and wave filtering circuit
Irregular 400V direct current is become smoother by wave capacitor C24, and the resistance R30 in current rectifying and wave filtering circuit is fictitious load, in addition to having
Load effect also has the effect of bleeder resistance concurrently simultaneously, remaining electricity can be bled off when power is off, sample circuit such as Figure 10 institute
Showing, resistance R27, sliding variable resistance RT1 are voltage samples, output voltage can be set by adjusting sliding variable resistance RT1, resistance R27,
Sliding variable resistance RT1 divides 400V direct current, and the value that partial pressure obtains is fed back to PWM wave output circuit sampling end 400VFB,
When detecting over-voltage, PWM wave output circuit adjustment PWM wave width reduces output voltage, and when detecting under-voltage, PWM wave is driven
Dynamic the regulation of electrical circuit PWM wave width increases output voltage, and resistance R19, R21, capacitor C19, optocoupler U4 are current samples, work as overcurrent
When resistance R21 both end voltage can increase, make optocoupler U4 be connected, optocoupler conducting can feed back to PWM wave output circuit sampling end DC-
Mono- high level of OCP, PWM wave output circuit stop output PWM wave, export 400V no longer, protect subsequent conditioning circuit.
When not shaking electricity, the 15V DC voltage of AC-DC reduction voltage circuit output passes through π type filter circuit, filter capacitor
C6, zener diode D6, diode selection circuit are push-pull type power conversion circuit, transformer T1, the confession of PWM wave output circuit
Electricity makes transformer T1 export 400V direct current.When occurring to shake electricity, AC-DC reduction voltage circuit is without output 15V direct current, at this time super electricity
Appearance group is that push-pull type power conversion circuit, transformer, PWM wave driving circuit etc. supply by relay K1, diode selection circuit
Electricity makes transformer lasts export 400V load supplying.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that；
It can still modify to technical solution documented by previous embodiment, or to some or all of the technical features
It is equivalently replaced；Thus these are modified or replaceed, the utility model right that it does not separate the essence of the corresponding technical solution
It is required that limited range.
Claims (1)
1. a kind of uninterrupted fast charging and discharging DC power supply of industry for solving Problem of Voltage Temporary-Drop, which is characterized in that including AC-DC
Reduction voltage circuit, super capacitor charge/discharge, diode selection circuit and DC-DC booster circuit；
The AC-DC reduction voltage circuit include: WIMA capacitor, varistor, fuse, AC-DC power module, π type filter circuit,
Filter capacitor and zener diode；The WIMA capacitor and varistor are attempted by between zero curve and firewire, and zero curve and firewire are simultaneously
It connects WIMA capacitor and varistor is followed by the input terminal of AD-DC power module, the output of the AD-DC power module terminates π type
Filter circuit, the π type filter circuit and filter capacitor and zener diode simultaneously connect, the output end difference of the zener diode
The input terminal of super capacitor charge/discharge and diode selection circuit is connect, the fuse connects in varistor and AD-DC electricity
On firewire between source module；
The super capacitor charge/discharge includes charging diode, current-limiting resistance group, super capacitor group, equalizing resistance group, fills
Piezoelectric voltage detection circuit and relay switch and its driving circuit；The input of the charging diode terminates AC-DC reduction voltage circuit
Output end, the input terminal of the output termination current-limiting resistance of charging diode, the output of the current-limiting resistance terminates super capacitor
The input terminal of group and equalizing resistance group, the equalizing resistance group is in parallel with super capacitor group, the relay switch and its driving
Circuit connects between the output end and diode selection circuit input terminal of super capacitor group；
The diode selection circuit includes two diodes, and there are two input terminal VCC 15V, VCC 13V and output for tool
Hold BAT；
The DC-DC booster circuit includes PWM wave driving circuit, push-pull type power conversion circuit, transformer, current rectifying and wave filtering circuit
And sample circuit；The output end of the PWM wave driving circuit connects the control terminal of push-pull type power conversion circuit respectively, described to recommend
The output end of the input termination diode selection circuit of formula power conversion circuit, the output end of the push-pull type power conversion circuit
The primary of transformer is connect, the secondary of the transformer connects current rectifying and wave filtering circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920046110.XU CN209150781U (en) | 2019-01-11 | 2019-01-11 | A kind of uninterrupted fast charging and discharging DC power supply of industry solving Problem of Voltage Temporary-Drop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920046110.XU CN209150781U (en) | 2019-01-11 | 2019-01-11 | A kind of uninterrupted fast charging and discharging DC power supply of industry solving Problem of Voltage Temporary-Drop |
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| CN209150781U true CN209150781U (en) | 2019-07-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111722127A (en) * | 2020-05-07 | 2020-09-29 | 武汉市蓝电电子股份有限公司 | Reverse connection prevention protection circuit for current line of battery test equipment |
| CN112398215A (en) * | 2020-11-09 | 2021-02-23 | 广州南方电力集团科技发展有限公司 | Power failure protection circuit for power distribution and consumption network |
-
2019
- 2019-01-11 CN CN201920046110.XU patent/CN209150781U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111722127A (en) * | 2020-05-07 | 2020-09-29 | 武汉市蓝电电子股份有限公司 | Reverse connection prevention protection circuit for current line of battery test equipment |
| CN112398215A (en) * | 2020-11-09 | 2021-02-23 | 广州南方电力集团科技发展有限公司 | Power failure protection circuit for power distribution and consumption network |
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