CN205960773U - Switching power of strong excessive pressure - Google Patents

Abstract

The utility model provides a switching power of strong excessive pressure, and belongs to the electronic technology field, by two rectifier unit, the quick -break protection unit, the voltage regulator unit, the floating charge unit, the battery, switching control unit, silicon controlled rectifier translation unit, load unit constitutes, two bridge type rectifier circuit insert the quick -break protection unit respectively among the rectifier unit, quick -break protection when forming the thunderbolt, two bridge type rectifier circuit provide the electric current for floating charge unit and voltage regulator unit separately, behind load unit, when having the interchange, the power supply of alternating current circuit, there is not when interchange, the switching control unit disconnection, silicon controlled rectifier translation unit starts, for the DC circuit power supply, in voltage regulator power supply loop, reinforcing excessive pressure ability, increase and adjust and back -up function, it is more accurate and reliable to make voltage regulator output, form independent direct current power supply loop in the measure, combine with alternating current power supply loop, become two power supply loop's power, and formation automatic switch -over, thereby make this power have extensive and special use.

Description

A kind of Switching power of strong overvoltage

Technical field

Belong to electronic technology field.

Background technology

Any outstanding electronic equipment is required for an outstanding power supply, just can become perfect product.

In electrical equipment, power supply is often flimsy keypoint part, and the infringement causing with overvoltage of being struck by lightning is fault Main source, so reducing this power failure rate, is very significant.

Present product makes rapid progress, and traditional power supply voltage regulation way has been not applied for the sci-tech product of modern innovation, As this enterprise had once applied for multiple products with regard to equipment of ensuring public security.The requirement to power supply for the product of these equipment is just very high, makes excessive demands Degree will significantly larger than ordinary electrical home appliance, be inefficient by traditional design.Reason is as follows：

One be power supply be often electrical equipment, the most troublesome keypoint part, all such to ordinary electrical home appliance.And to being furnished with electric power storage The product in pond is even more so, because during with accumulator, not only load power source, and increased the charging current filling accumulator again, If accumulator electricity consumption is excessive, initial charge stream is very big, thus more exacerbates the load of power supply, thus is easily damaged.

Two is the same day in thunderstorm season for the ordinary electrical home appliance, can pull out power supply prevention, needing the used time,（If desired for seeing electricity Apparent time）, because being easily alerted, can recover immediately, user is expected.And class product of ensuring public security is really highly difficult, because dialling Behind power down source, it is difficult intuitively to remind, because in the life of high rhythm, forgets about that these things are possible, now its protection function is just Failure, produces security personnel blank.If user is forgotten to recover, ensuring public security, it is blank to be in security personnel for a long time.And present stable state collection Become in lightning protection, very weak, such as generally input ceiling voltage is only 30 volts about.

The three particularity importances being because the product ensured public security adapt to electrical network change it is therefore necessary to will have in design Wider, key benefit reason one is when voltage ripple of power network, integrated regulator will not originally be penetrated and cause to damage.Reason Two are, when civil power is relatively low or relatively high can normal voltage stabilizing, do not result in the failure of protection function.Reason three is to make security personnel Product can have bigger use space.

Four is that security personnel's class product necessarily joins accumulator, and the maintenance of accumulator has higher requirement, wherein charging voltage Value is different with place value.If load request voltage stabilizing is pressed in voltage stabilizing, the requirement of charging can not be met, if by the voltage charging As requiring, then load will be higher than normal required voltage for a long time.This is difficult point one.Difficult point two is if there are battery discharging system System, inevitable and mains-supplied system forms OR gate power supply mode to load, therefore both and the circuit being loaded with individual OR gate property. During battery discharging, most of time is every standard value saving 2 volts, and with discharging, this value also will decline, the therefore output of accumulator Voltage drop is of great value, if the pressure drop of the circuit of OR gate property is excessive.The normal standard of deviation then loading increases.Therefore adopt Any measure makes accumulator not produce excessive pressure drop in electric discharge, becomes difficult point.Difficult point three is to be to load when there being civil power Set of system, and no civil power when be that battery system is powered, conversion between the two is to automatically switch, therefore how could be real Now change scientific.Difficult point four is how to form two parts and power to be independent of each other each other, is when accumulator breaks down, no Mains-supplied system can be affected, otherwise do not interfere with battery system during mains-supplied system failure.Difficult point five, some data carry Go out and make to switch with relay, this scheme has multiple deficiencies, and the point of wherein one important deficiency is power consumption, difficult point six is, some Scheme cost is too high, is not suitable for the popularization of product.

Just because of above-mentioned factor so that the development of power supply receives obstruction, the performance of electronic product to be made obtains more Further improve it is necessary first to be exactly power supply innovation, so it is perfect to need brand-new thinking that power supply is carried out.

Content of the invention

Main purpose of the present utility model is that the response using relay is swiftness, when there being thunderbolt overvoltage, forms quick-break Protection, in AC voltage-stabilizing current supply circuit, strengthens overvoltage capabilities, increases and adjust and backup functionality, so that AC voltage-stabilizing is exported more smart Accurate and reliable, form independent direct current current supply circuit in measure, be combined with ac power supply circuit, become the electricity in duplicate supply loop Source, and form automatic switchover, so that this power supply has extensive and special purposes.

Major measure

1st, a kind of Switching power of strong overvoltage is by two rectification units, fast tripping protection unit, AC voltage-stabilizing unit, floating charge list Unit, accumulator, switch control unit, controllable silicon converting unit, load unit forms.

Wherein：Two rectification units are bridge rectifier, the secondary end of two rectification unit input termination rectifier transformers, two The difference of bridge rectifier is, the ground connection termination switching diode of bridge rectifier one is to ground wire, bridge rectifier The output of circuit two connects a filter capacitor.

The OR gate that fast tripping protection unit is made up of protective relay, lightning protection stabilivolt, two diodes：Two bridge rectifiers Output connect two diodes composition OR gate to protective relay a line bag termination, another line Bao Duan of protective relay Head takes over control thunder stabilivolt to ground wire, and the first normally-closed contact of protective relay connects the output of bridge rectifier one, protects relay First transfer contact of device connects floating charge unit, and the second normally-closed contact of protective relay connects the output of bridge rectifier two, protects Second transfer contact of shield relay connects AC voltage-stabilizing unit and switch control unit.

Floating charge unit by floating charge pipe, trickle resistance, stop filling door stabilivolt, stop filling adjustment diode, stop filling triggering resistance, Switch N pipe collector resistance, switch N pipe, switch P pipe, stop filling guiding resistance, stop filling earth resistance, stop filling steering diode, straight Stream isolating diode composition.

The emitter stage of floating charge pipe connects the first transfer contact of protective relay, and the colelctor electrode of floating charge pipe connects battery positive voltage, Trickle resistance is connected between the first transfer contact of protective relay and battery positive voltage, stops filling door stabilivolt, stops filling adjustment Diode, stop filling triggering resistant series between battery positive voltage and switch N pipe base stage, switch N pipe collector resistance is connected on guarantor Between the colelctor electrode of the first transfer contact of shield relay and switch N pipe, switch the emitter stage of N pipe and the base stage phase of switch P pipe Even, the first transfer contact of the emitter stage contact relay of switch P pipe, the colelctor electrode of switch P pipe connects the one end stopping filling guiding resistance, The other end stopping filling guiding resistance is two-way, and a road connects stops filling earth resistance to ground wire, and another road connects to stop filling steering diode and arrives The base stage of floating charge pipe, the negative pole of accumulator connects the earth terminal of bridge rectifier one, and the positive pole of accumulator connects DC-isolation two pole The positive pole of pipe.

AC voltage-stabilizing unit is made up of overvoltage crowbar, ac power circuit：Ac power circuit by audion is Alternating Current Power Supply audion, overcurrent protection diode, overcurrent protection resistance, exchange isolating diode composition.

Overvoltage crowbar is by overvoltage protection resistance, overvoltage protection dormancy stabilivolt, overvoltage protection work stabilivolt, overvoltage Protection adjustment diode, overvoltage protection adjust resistance composition.

The colelctor electrode of Alternating Current Power Supply audion is connected in the second transfer contact of fast tripping protection relay, Alternating Current Power Supply three pole The emitter stage of pipe takes over one end of stream protective resistance, and the base stage of Alternating Current Power Supply audion connects, the base stage of Alternating Current Power Supply audion Take over stream protection diode to the other end of overcurrent protection resistance, overvoltage protection resistance is connected on the colelctor electrode of Alternating Current Power Supply audion And base stage between, overvoltage protection work stabilivolt, overvoltage protection adjustment diode, overvoltage crowbar adjust resistant series and are handing over Between the stream base stage of power supply transistor and ground wire, overvoltage protection dormancy stabilivolt be connected on the base stage of ac power circuit audion with Between ground wire, the positive pole of one exchange isolating diode of another termination of overcurrent protection resistance, the negative pole of exchange isolating diode It is connected with the negative pole of DC-isolation diode, be a kind of output of the Switching power of strong overvoltage, connect the power end of load unit.

Switch control unit is formed with controllable silicon converting unit.

Switch control unit is made up of with conversion and control audion conversion and control resistance：The output of bridge rectifier two connects Conversion and control resistance is to the base stage of conversion and control audion, the grounded emitter line of conversion and control audion, conversion and control three pole The colelctor electrode of pipe connects the earth terminal of load unit.

Controllable silicon converting unit is made up of with direct current transition trigger resistance direct current conversion controllable silicon：Direct current changes silicon controlled Anode connects the earth terminal of load unit, and direct current changes the negative pole that silicon controlled negative electrode connects accumulator, and direct current transition trigger resistance connects Change between silicon controlled control pole in the earth terminal of load unit and direct current.

2nd, the voltage stabilizing value of Overvoltage protecting unit dormancy stabilivolt should be higher than that the voltage stabilizing value of Overvoltage protecting unit work stabilivolt.

3rd, in addition to floating charge pipe is managed as PNP triode with switch P, remaining audion is all NPN triode.

4th, the pressure voltage of filter capacitor is three times of bridge rectifier two output voltage values.

5th, direct current changes controllable silicon into one-way SCR.

It is further described below：

A kind of Switching power of strong overvoltage by two rectification units, fast tripping protection unit, AC voltage-stabilizing unit, floating charge unit, Accumulator, switch control unit, controllable silicon converting unit, load unit forms, and the response using relay is swiftness, is having thunder When hitting overvoltage, form fast tripping protection, in AC voltage-stabilizing current supply circuit, strengthen overvoltage capabilities, increase and adjust and backup functionality, make AC voltage-stabilizing output is more precisely and reliable, forms independent direct current current supply circuit, be combined with ac power supply circuit, become in measure The power supply in duplicate supply loop, and form automatic switchover, so that this power supply has extensive and special purposes.

First, this practical AC voltage-stabilizing unit output voltage is flexibly adjustable.

Due to the Alternating Current Power Supply in this utility model, it is the main time to loaded work piece, be normal time, and power supply It is the part being easiest to damage.So the Alternating Current Power Supply audion in this measure adopts the high-power NPN triode of high back-pressure, and Using penetrating with output, expand the output of audion, load capacity is very strong, be in the state that " big horse " draws " dolly ", because And improve the reliable life of AC voltage-stabilizing part.

1st, the reason output voltage is reliable：When normality works, because overvoltage protection dormancy stabilivolt（5.5 in Fig. 2）'s Breakdown voltage is higher than overvoltage protection work stabilivolt（In Fig. 2 5.7）Voltage stabilizing value, by overvoltage protection work stabilivolt clamper. Thus the basic no current of overvoltage protection dormancy stabilivolt, it is in " resting state branch road ", when overvoltage protection work stabilivolt is because damaging Go bad into when opening a way,（Common form for fault）, overvoltage protection dormancy stabilivolt will automatically engage work, due to the electricity of two branch roads Pressure will not differ greatly, and its error will not have a tremendous difference, but but substantially increases reliability.

2nd, the reason overvoltage protection ability is strong：When there is thunderbolt and shoving because one be Alternating Current Power Supply audion be high anti- Pressure pipe is so be difficult to damage, two overvoltage protections adjust resistance（5.9 in Fig. 2）Pressure drop is increased, when the voltage of this branch road exceeds overvoltage During the voltage stabilizing value of protection dormancy stabilivolt, overvoltage protection dormancy stabilivolt is also switched on, and becomes two-way and shoves passage, decreases overvoltage The electric current of protection location work stabilivolt, thus improve the reliability of stabilivolt.Three are because above-mentioned reason, have limited exchange The ceiling voltage of power supply unit transistor base, thus ensure that the output voltage of Alternating Current Power Supply part.

3rd, Alternating Current Power Supply unit has the explanation of voltage and excellent performance.

One is output voltage stabilization, and two is to have over current protection, and producing the reason protect is Alternating Current Power Supply when current is excessive The pressure drop of the overcurrent protection resistance that transistor emitter is connected increases, when exceeding overcurrent protection diode（5.3 in Fig. 2）Threshold During value, Alternating Current Power Supply audion（5.1 in Fig. 2）Base flow shunting, thus cause emitter current reduce, thus ensure that exchange The reliability of voltage regulation unit.

2nd, this utility model has the good explanation of overvoltage protection.

There is good anti-overvoltage protection explanation：The lightning protection stabilivolt that protective relay is connected suctions through, and its correspondence is normally closed Contact disconnects, and rear class is formed with protection quick-break, therefore has protective effect to thunderbolt, form a kind of special protection.This protection shape The principle becoming is that rear class is cut off, rather than short circuit, so good effect, in numerous equipment of many Compact Power Plants Lightning protection is it is simply that adopt this fast tripping protection.The stabilivolt connected by protective relay is flexibly it is possible to form institute The anti-overvoltage grade needing.The lightning-arrest pipe that this is common is difficult to, because less than 100 volts of lightning-arrest pipe is difficult to buy, and Less than 50 volts of anti-thunder tube almost can't buy.

The explanation of the 3rd, independent charge circuit feature, i.e. the explanation of floating charge unit.

By trickle resistance（In Fig. 27）, floating charge pipe（In Fig. 28）, stop filling door stabilivolt（In Fig. 2 10.4）, stop Fill adjustment diode（In Fig. 2 10.5）, stop filling triggering resistance（In Fig. 2 10.6）, switch N pipe collector resistance（In Fig. 2 10.3）, switch N pipe（In Fig. 2 10.1）, switch P pipe（In Fig. 2 10.2）, stop filling guiding resistance（In Fig. 2 10.7）, stop Fill earth resistance（In Fig. 2 10.8）, stop filling steering diode（In Fig. 2 10.9）, DC-isolation diode（In Fig. 2 9.1）Composition.

Not being in high-grade pressure stabilizing device, it is difficult to ensure that there is the accumulator of floating charge and civil power is powered has height simultaneously The unification of degree.This measure employs special design, will be completely separable with load circuit for typically supporting floating charge loop, thus tool There is good advantage.Now taking load and need 12 volts as a example, if the accumulator of 12 volts of adapted.Then during accumulator floating charge, need 13.8 volts about, if not designing special circuit, when civil power has electricity, power output end is 13.8 volts about for a long time, and this is right Only need 12 volts of load unfavorable.If power end output adjustment is 12 volts, though load request can be met, but departing from accumulator Needed for floating charge 13.8 volts.Devise accumulator floating charge and discharge cell for this system.Its floating charge principle is that civil power has electricity When, bridge rectifier one output has electricity, through floating charge audion, then the ground connection returning to bridge rectifier one through accumulator End, is also the negative terminal of accumulator, thus forms floating charge independent loop, and according to kirschner law, and the experiment of circuit, this floating charge is returned Road is self-existent, with AC voltage-stabilizing unit, the current supply circuit of load is not interfere with each other, the confession to load for the AC voltage-stabilizing unit The electric loop is the output current of bridge rectifier two, through AC voltage-stabilizing unit to load, is then return to ground wire, that is to say bridge The earth terminal of formula rectification circuit two.

When bridge rectifier one has output, stop filling the threshold value that door branch road forms accumulator, when accumulator When voltage is not up to this threshold value, switch N pipe does not start, the colelctor electrode no-voltage of switch P pipe, and now floating charge pipe fills to accumulator Electricity, when the voltage of accumulator exceeds this threshold value, switch N pipe is filled triggering, leads to the colelctor electrode output switching P pipe high-order, Thus closing floating charge pipe, accumulator stops charging, and now only trickle resistance provides, to accumulator, the trickle maintaining.

4th, civil power and accumulator duplicate supply explanation, its power supply trend is as shown in Figure 3.

When mains sometimes, bridge rectifier two export high pressure, after alternate current operation circuit, enter load unit Power end, conversion and control resistance by conversion and control audion trigger, therefore by the earth terminal of load unit, load current pass through The colelctor electrode of conversion and control audion, to emitter stage, because the grounded emitter line of conversion audion, has therefore been returned to ground wire, It is the earth terminal of bridge rectifier two.

When mains no when, bridge rectifier two no exports, and alternate current operation circuit no exports, but now accumulator to Load unit is powered, and electric current is after load unit, through direct current conversion controllable silicon（13.1 in Fig. 3）To bridge rectifier one Earth terminal, be the negative terminal of accumulator, complete power.

5th, the principle explanation of automatic switch unit.

When mains sometimes, bridge rectifier two export high pressure, conversion and control audion（12.2 in Fig. 2）Touched Send out, produce base flow, so conversion and control transistor collector has electric current, its current collection extremely saturation, its base loop is, bridge Formula rectification circuit two positive pole, through control unit transistor base to ground, collector current loop is, alternate current operation circuit defeated Go out and enter the colelctor electrode of conversion and control audion through load unit and then arrive ground.Now direct current conversion controllable silicon oncontacting generates electricity Pressure, that is to say no Anode current, is off-state.

When no mains, bridge rectifier two no exports, conversion and control resistance（12.1 in Fig. 2）No electricity, does not produce Raw base flow, so conversion and control transistor collector no current, its current collection extremely cut-off state, and the voltage of accumulator is through negative After carrier unit, by direct current transition trigger resistance（In Fig. 2 13.2）Triggering direct current conversion controllable silicon（In Fig. 2 13.1）, now Loop be that the anode of accumulator is through DC-isolation diode（In Fig. 2 9.1）Enter load unit, then through overload list Enter direct current conversion silicon controlled anode after unit, the ground connection that silicon controlled negative electrode enters bridge rectifier one is changed by direct current End, that is to say the negative pole of accumulator.

This utility model has following significant advantage after implementing：

The quality of power supply, directly influences overall performance.Power source performance is good, then overall performance is good.The one of particular importance It is that important equipment is generally equipped with Accessory Battery, such as can not directly affect the life of storage battery and reliability to its scientific maintenance Property it would be possible to become a kind of new trouble point, if two is if that the power supply parameter of supporting power supply is deposited with the power supply parameter of civil power Lead in difference, electric property will be directly affected, three is that the automatic switchover performance needing two kinds of power supplys will be got well, to ensure each card signal Do not run off.Four is for ordinary electrical home appliance, and some important performances can be made up with the behavior of employment, such as thundery sky, can be artificial Pull out power supply, and a lot of equipment can not be made up with artificial mode, the product of class of such as ensuring public security, and pulling out power supply just makes " security personnel " one-tenth For blank, such as used in the equipment of signal transmission system, pull out power supply and can cause the unimpeded of system signal.What is more, sometimes people Also can not possibly arbitrarily go to power-off source before equipment, pull out power supply.Details success, and the uncertain genus of the problems referred to above is thin Section.This utility model is a kind of very excellent regulated power supply of performance, and he has all excellent properties of current product, but also There is serial bright spot, therefore can be widely used for the needs of various electronic, adapt to the different development of the electronic product moon new day Need.Concrete condition is as follows：

1st, accumulator floating charge can remain to optimum state, because float charge voltage floating charge and load circuit are independent each other.

2nd, alternate current operation circuit and accumulator are separate, are independent of each other, thus further increase reliability, and two is to work as No civil power when automatically switch, accumulator automatically engages immediately, and when there being civil power, accumulator is excised automatically.Switch speed is fast, because can Control silicon has strong positive feedback, thus switch performance is good, will not produce impact to load.Ensure that the performance of load.Three is province Electricity, proposes the method with relay in some technical data, but relay very power consumption, to supporting accumulator very not Profit.

3rd, overvoltage protection is good, and during protection, relay normally-closed contact disconnects, and rear class is formed with protection quick-break, rear class is cut off, Rather than short circuit, so good effect, the stabilivolt connected by protective relay is flexibly it is possible to required for forming Anti- overvoltage grade.The lightning-arrest pipe that this is common is difficult to, because less than 100 volts of lightning-arrest pipe is difficult to buy, and 50 volts Following anti-thunder tube can hardly have been bought.This is very good to much special electrical equipment, such as security personnel's equipment, does not result in unexpected thing Part（As thunderbolt）And damage, be not in that security personnel are blank, in the amplifier of network loop, after also will not going out thunderbolt, amplify The large-scale repair of device.

4th, two-stage output voltage（Floating charge output voltage, with load output voltage）Adjustability is strong, can extensively adapt to load Need.

5th, simple in circuits, easily produces and debugging, and the debug point that reason one is because in circuit is few.Two are, easily quantify very much.Adjust Examination scope is loose, workable.

6th, cheap, wide adaptability, matching is strong.

Brief description

Fig. 1 is a kind of functional-block diagram of the Switching power of strong overvoltage.

In figure：02nd, fast tripping protection unit；03rd, bridge rectifier two；05th, AC voltage-stabilizing unit；06th, bridge rectifier electricity Lu Yi；08th, floating charge unit；9th, accumulator；012nd, switch control unit；013rd, controllable silicon converting unit；18th, load unit.

Fig. 2 is a kind of electronic circuitry of the Switching power of strong overvoltage.

In figure：0th, civil power input；2.1st, protective relay；2.2nd, first two pole in the OR gate of two diode compositions Pipe；2.3rd, second diode in the OR gate of two diode compositions；2.4th, lightning protection stabilivolt；2.5th, the first of protective relay Transfer contact；2.6th, the first normally-closed contact of protective relay；2.7th, the second transfer contact of protective relay；2.8th, protection continues Second normally-closed contact of electrical equipment；3rd, bridge rectifier two；3.1st, filter capacitor；5.1st, Alternating Current Power Supply audion；5.2nd, excessively stream Protective resistance；5.3rd, overcurrent protection diode；5.5th, overvoltage protection dormancy stabilivolt；5.7th, overvoltage protection work stabilivolt； 5.8th, overvoltage protection adjustment diode；5.9th, overvoltage protection adjusts resistance；5.13rd, exchange isolating diode；6th, bridge rectifier electricity Lu Yi；6.1st, switch diode；7th, trickle resistance；8th, floating charge pipe；9th, accumulator；9.1st, DC-isolation diode；10.1, open Close N pipe；10.2nd, switch P pipe；10.3rd, switch N pipe collector resistance；10.4th, stop to fill door stabilivolt；10.5th, stop to fill adjustment two Pole pipe；10.6th, stop to fill triggering resistance；10.7th, stop to fill guiding resistance；10.8th, stop filling earth resistance；10.9th, stop to fill guiding two poles Pipe；12.1st, conversion and control resistance；12.2nd, conversion and control audion；13.1st, direct current conversion controllable silicon；13.2nd, direct current conversion is touched Generate electricity resistance；18th, load unit.

Fig. 3 is the current trend instruction figure of Alternating Current Power Supply and direct current supply in this utility model.

In figure：0th, civil power input；2.1st, protective relay；2.2nd, first two pole in the OR gate of two diode compositions Pipe；2.3rd, second diode in the OR gate of two diode compositions；2.4th, lightning protection stabilivolt；2.5th, the first of protective relay Transfer contact；2.6th, the first normally-closed contact of protective relay；2.7th, the second transfer contact of protective relay；2.8th, protection continues Second normally-closed contact of electrical equipment；3rd, bridge rectifier two；3.1st, filter capacitor；5.1st, Alternating Current Power Supply audion；5.2nd, excessively stream Protective resistance；5.3rd, overcurrent protection diode；5.5th, overvoltage protection dormancy stabilivolt；5.7th, overvoltage protection work stabilivolt； 5.8th, overvoltage protection adjustment diode；5.9th, overvoltage protection adjusts resistance；5.13rd, exchange isolating diode；6th, bridge rectifier electricity Lu Yi；6.1st, switch diode；7th, trickle resistance；8th, floating charge pipe；9th, accumulator；9.1st, DC-isolation diode；10.1, open Close N pipe；10.2nd, switch P pipe；10.3rd, switch N pipe collector resistance；10.4th, stop to fill door stabilivolt；10.5th, stop to fill adjustment two Pole pipe；10.6th, stop to fill triggering resistance；10.7th, stop to fill guiding resistance；10.8th, stop filling earth resistance；10.9th, stop to fill guiding two poles Pipe；12.1st, conversion and control resistance；12.2nd, conversion and control audion；13.1st, direct current conversion controllable silicon；13.2nd, direct current conversion is touched Generate electricity resistance；18th, load unit；20th, direct current supply move towards indicate；22nd, Alternating Current Power Supply move towards indicate.

Specific embodiment

Fig. 1,2,3 have expressed a kind of example of making.

First, select element：1st, two keys relay selected by protective relay.

2nd, the voltage stabilizing value of Overvoltage protecting unit dormancy stabilivolt should be higher than that the voltage stabilizing value of Overvoltage protecting unit work stabilivolt.

3rd, in addition to floating charge pipe is managed as PNP triode with switch P, remaining audion is all NPN triode.

4th, the pressure voltage of filter capacitor is three times of bridge rectifier two output voltage values.

5th, direct current changes controllable silicon into one-way SCR.

2nd, weld：A kind of Switching power of strong overvoltage, its concrete electronic circuit welds according to Fig. 2.

3rd, the inspection of energising and debugging：Power supply is allowed to connect load unit first, such as equivalent resistance.

1st, detect AC voltage-stabilizing unit.

（1）, adjustment AC voltage-stabilizing output voltage.

Select protection work stabilivolt（5.7 in Fig. 2）To design load, increase or decrease overvoltage protection adjustment diode（Fig. 2 In 5.8）More accurately it is worth to one, a diode is 0.7V, in below 0.7V, adjust resistance through fine setting overvoltage protection Resistance（5.9 in Fig. 2）It is allowed to standard value.

（2）, detection AC voltage-stabilizing unit overcurrent protection situation：It is connected on power supply output with a resistance less resistive as load End, the excessive situation of fictitious load, by the ammeter string in circuit tester in overcurrent protection diode（5.3 in Fig. 2）In, now electricity Flow table should have electric current to indicate.As no, should suitably increased overcurrent protection resistance（5.2 in Fig. 2）Resistance, or improve Alternating Current Power Supply three pole Pipe（5.1 in Fig. 2）Amplification.

（3）, detection with adjustment overvoltage protection dormancy stabilivolt（5.5 in Fig. 2）With overvoltage protection work stabilivolt（In Fig. 2 5.7）Working condition.Table is sealed in overvoltage protection dormancy stabilivolt, during energising, no current answered by this branch road.If there being electric current, should be by The voltage stabilizing value of overvoltage protection dormancy stabilivolt changes height a bit, or increases the number that overvoltage protection adjusts diode.

2nd, detect accumulator floating charge electric unit.

First connect the fictitious load of a replacement accumulator, with 2 to 3 Diode series, then with adjustment resistance, protect with adjustment Shield resistant series.Wherein this two resistance should select high-power species.Fictitious load is adjusted to the situation of underfill electricity, now survey Switch P pipe（In Fig. 2 10.2）Current collection extremely low level, fictitious load is adjusted to fully charged situation, tests the electricity of floating charge pipe Stream should be close to zero, if it is not, whether the colelctor electrode of detection switch P pipe is high-order, such as the colelctor electrode of switch P pipe is not if being high Position, then be switch N pipe（In Fig. 2 10.1）Or switch P pipe is bad, if the colelctor electrode of switch P pipe is high-order, it is to stop filling guiding Resistance（In Fig. 2 10.7）With stop filling steering diode（In Fig. 2 10.9）Sealing-off.

3rd, the situation during electric discharge of detection Accessory Battery.

Broken civil power, connects load unit, surveys direct current conversion controllable silicon with ammeter（In Fig. 2 13.1）Negative electrode and anode electricity Pressure, its pressure should be saturation voltage, if excessive, is direct current transition trigger resistance（In Fig. 2 13.2）Rosin joint.

4th, the situation of detection switch control unit work.

When there being civil power, conversion and control audion（In Fig. 2 12.2）Current collection extremely low level；It is conversion control as incorrect Resistance processed（In Fig. 2 12.1）Sealing-off, or conversion and control audion pin wrong plug.When no civil power, electric current string is in conversion and control The current collection of audion extremely loop no current, such as incorrect is that conversion and control audion damages.

5th, detect lightning protection situation.

It is connected on the socket containing AC voltage regulator with this utility model, raise the voltage of pressure regulator, exceed certain value Afterwards, protective relay action, if not moving, should adjust connected stabilivolt and being allowed to meet the requirements.

Claims (5)

1. a kind of Switching power of strong overvoltage, is characterized in that：By two rectification units, fast tripping protection unit, AC voltage-stabilizing unit, floating Fill unit, accumulator, switch control unit, controllable silicon converting unit, load unit forms；

Wherein：Two rectification units are bridge rectifier, the secondary end of two rectification unit input termination rectifier transformers, two bridge-types The difference of rectification circuit is, the ground connection termination switching diode of bridge rectifier one is to ground wire, bridge rectifier Two output connects a filter capacitor；

The OR gate that fast tripping protection unit is made up of protective relay, lightning protection stabilivolt, two diodes：Two bridge rectifiers defeated Go out a line bag termination connecing the OR gate of two diode compositions to protective relay, another line bag termination of protective relay connects To ground wire, the first normally-closed contact of protective relay connects the output of bridge rectifier one to lightning protection stabilivolt, protective relay First transfer contact connects floating charge unit, and the second normally-closed contact of protective relay connects the output of bridge rectifier two, and protection continues Second transfer contact of electrical equipment connects AC voltage-stabilizing unit and switch control unit；

Floating charge unit by floating charge pipe, trickle resistance, stop filling door stabilivolt, stop filling adjustment diode, stop filling triggering resistance, switch N pipe collector resistance, switch N pipe, switch P pipe, stop filling guiding resistance, stop filling earth resistance, stop filling steering diode, direct current every From diode composition；

The emitter stage of floating charge pipe connects the first transfer contact of protective relay, and the colelctor electrode of floating charge pipe connects battery positive voltage, trickle Resistance is connected between the first transfer contact of protective relay and battery positive voltage, stops filling door stabilivolt, stops filling adjustment two poles Manage, stop filling triggering resistant series between battery positive voltage and switch N pipe base stage, switch N pipe collector resistance is connected on protection and continues Between the colelctor electrode of the first transfer contact of electrical equipment and switch N pipe, the emitter stage of switch N pipe is connected with the base stage of switch P pipe, opens Close the first transfer contact of the emitter stage contact relay of P pipe, the colelctor electrode of switch P pipe connects the one end stopping filling guiding resistance, stops filling The other end of guiding resistance is two-way, and a road connects stops filling earth resistance to ground wire, and another road connects stops filling steering diode to floating charge The base stage of pipe, the negative pole of accumulator connects the earth terminal of bridge rectifier one, and the positive pole of accumulator connects DC-isolation diode Positive pole；

AC voltage-stabilizing unit is made up of overvoltage crowbar, ac power circuit：Ac power circuit is exchange by audion Power supply transistor, overcurrent protection diode, overcurrent protection resistance, exchange isolating diode composition；

Overvoltage crowbar is by overvoltage protection resistance, overvoltage protection dormancy stabilivolt, overvoltage protection work stabilivolt, overvoltage protection Adjustment diode, overvoltage protection adjust resistance composition；

The colelctor electrode of Alternating Current Power Supply audion is connected in the second transfer contact of fast tripping protection relay, Alternating Current Power Supply audion Emitter stage takes over one end of stream protective resistance, and the base stage of Alternating Current Power Supply audion connects, and the base stage of Alternating Current Power Supply audion is taken over Flow protection diode to the other end of overcurrent protection resistance, overvoltage protection resistance is connected on colelctor electrode and the base of Alternating Current Power Supply audion Between pole, overvoltage protection work stabilivolt, overvoltage protection adjustment diode, overvoltage crowbar adjust resistant series and supply in exchange Between the base stage of electric audion and ground wire, overvoltage protection dormancy stabilivolt is connected on base stage and the ground wire of ac power circuit audion Between, the positive pole of one exchange isolating diode of another termination of overcurrent protection resistance, the negative pole of exchange isolating diode with straight The negative pole of stream isolating diode is connected, and is a kind of output of the Switching power of strong overvoltage, connects the power end of load unit；

Switch control unit is formed with controllable silicon converting unit；

Switch control unit is made up of with conversion and control audion conversion and control resistance：The output of bridge rectifier two connects conversion Control resistance to conversion and control audion base stage, the grounded emitter line of conversion and control audion, conversion and control audion Colelctor electrode connects the earth terminal of load unit；

Controllable silicon converting unit is made up of with direct current transition trigger resistance direct current conversion controllable silicon：Direct current changes silicon controlled anode Connect the earth terminal of load unit, direct current changes the negative pole that silicon controlled negative electrode connects accumulator, and direct current transition trigger resistance is connected on negative Between the earth terminal of carrier unit and direct current conversion silicon controlled control pole.

2. a kind of Switching power of strong overvoltage according to claim 1, is characterized in that：Overvoltage protecting unit dormancy stabilivolt Voltage stabilizing value should be higher than that Overvoltage protecting unit work stabilivolt voltage stabilizing value.

3. a kind of Switching power of strong overvoltage according to claim 1, is characterized in that：Except floating charge pipe is managed as PNP with switch P Outside audion, remaining audion is all NPN triode.

4. a kind of Switching power of strong overvoltage according to claim 1, is characterized in that：The pressure voltage of filter capacitor is bridge-type Three times of rectification circuit two output voltage values.

5. a kind of Switching power of strong overvoltage according to claim 1, is characterized in that：Direct current change controllable silicon into unidirectional can Control silicon.