CN205960684U - Steady voltage source of anti -thunder -type automatic switch -over - Google Patents

Abstract

The utility model provides a steady voltage source of anti -thunder -type automatic switch -over, and belongs to the electronic technology field, increase the regulatory function on the basis that keeps a series of advantages of three -terminal, it is more accurate to make voltage regulator output, in the floating charge of battery, the scientific charge mode of application constant current form, and the automation that forms the battery stops filling, by two rectifier unit, relay lightning protection unit, three -terminal steady voltage unit, the floating charge unit, the battery, switching control unit, silicon controlled rectifier translation unit, load unit constitutes, two bridge type rectifier circuit difference cut in relay lightning protection unit among the rectifier unit, quick -break protection when forming the thunderbolt excessive pressure, two bridge type rectifier circuit provide the electric current for floating charge unit and ac energisation 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, two power supply loop must disturb, the automatic switch -over, thereby make this power have extensive and special use.

Description

The source of stable pressure that a kind of lighning proof type automatically switches

Technical field

Belong to electronic technology field.

Background technology

Power supply is the most important elementary cell of all electronic circuits, and its reason is, all electronic equipments be required to reliable and Stable power supply.The quality of a kind of electronic equipment is directly relevant with power supply.Power source performance is good, then overall performance is good.Power supply is also normal It is often flimsy Focusing on components, and the infringement causing with overvoltage of being struck by lightning is one of main source of fault, so, study one Plant the regulated power supply reducing fault rate, be 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 to increase regulatory function on the basis of keeping three end series of advantages, make friendship Stream voltage stabilizing output is more accurate, in the floating charge of accumulator, with the science charging modes of constant current form, and formed accumulator from Move and stop filling, make to switch with controllable silicon, become DC loop, form direct current and share with exchanging, and form automatic switchover, so that This power supply has extensive and special purposes.

Major measure

1st, the source of stable pressure that a kind of lighning proof type automatically switches is by two rectification units, relay lightning protection unit, three-terminal voltage-stabilizing unit, Floating charge 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 relay lightning protection unit is made up of protective relay, lightning protection stabilivolt, two diodes：Two bridge rectifier electricity The output on road connects a line bag termination of the OR gate of two diode compositions to protective relay, another line bag of protective relay Thunder stabilivolt is taken over control to ground wire in termination, and the first normally-closed contact of protective relay connects the output of bridge rectifier one, and protection continues First transfer contact of electrical equipment connects floating charge unit, and the second normally-closed contact of protective relay connects the output of bridge rectifier two, Second transfer contact of protective relay connects three-terminal voltage-stabilizing unit and switch control unit.

Floating charge unit by constant current tube, trickle resistance, constant current resistance, current limiting tube, base resistance, stop filling door branch road, stop filling Triggering resistance, switch N pipe collector resistance, switch N manage, switch P pipe, stop filling guiding resistance, stop filling earth resistance, stop filling guiding Diode, DC-isolation diode composition.

The emitter stage of constant current tube connects constant current resistance to the first transfer contact of protective relay, and the colelctor electrode of constant current tube connects storage Anode, current limiting tube is connected between the first transfer contact of protective relay and the base stage of constant current tube, and base resistance is connected on perseverance Between the base stage of flow tube and ground wire, trickle resistance is connected between the first transfer contact of protective relay and battery positive voltage, stops Fill door branch road and stop filling triggering resistant series between the base stage of battery positive voltage and switch N pipe, switch N pipe collector resistance It is connected between the first transfer contact of protective relay and the colelctor electrode of switch N pipe, switch emitter stage and the switch P pipe of N pipe Base stage is connected, the first transfer contact of the emitter stage contact relay of switch P pipe, and the colelctor electrode of switch P pipe connects and stops filling guiding resistance One end, 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 stops filling guiding two To the base stage of constant current tube, the negative pole of accumulator connects the earth terminal of bridge rectifier one to pole pipe, the positive pole of accumulator connect direct current every Positive pole from diode.

Three-terminal voltage-stabilizing unit is become with voltage stabilizing diad by voltage stabilizing one unit by three-terminal voltage-stabilizing unit.

Two voltage regulation units are all by resistance inclined under resistance inclined in three terminal regulator, voltage stabilizing, voltage stabilizing, exchange isolating diode group Become：

The input of two three terminal regulators is all connected in another transfer contact of fast tripping protection relay, each three-terminal voltage-stabilizing The outfan of device all connects in a voltage stabilizing inclined resistance to earth terminal, and the earth terminal of each three terminal regulator connects under a voltage stabilizing partially To ground wire, the outfan of two three terminal regulators all connects the positive pole of an exchange isolating diode, two exchange isolating diodes to resistance Negative pole be connected with the negative pole of DC-isolation diode, be a kind of output of the source of stable pressure that lighning proof type automatically switches, connect load The power end of 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, current limiting tube is a luminous tube.

3rd, the power of lightning protection stabilivolt is 1W.

4th, stop to fill door and prop up route stabilivolt to become with Diode series.

It is further described below：

Main purpose of the present utility model is to increase regulatory function on the basis of keeping three end series of advantages, make friendship Stream voltage stabilizing output is more accurate, in the floating charge of accumulator, with the science charging modes of constant current form, and formed accumulator from Move and stop filling, make to switch with controllable silicon, become DC loop, form direct current and share with exchanging, and form automatic switchover, so that This power supply has extensive and special purposes.

First, this practical three-terminal voltage-stabilizing unit is reliable.

Three-terminal voltage-stabilizing in regulated power supply is a kind of ripe voltage stabilizing technique, and the three terminal regulator in this measure adopts Two regulating resistors that is to say that in voltage stabilizing, inclined resistance is matched with resistance partially under voltage stabilizing, forms the adjustment of output voltage, three End integrated stable voltage circuit ground connection has terminated inclined resistance under voltage stabilizing, and outfan and ground connection have terminated inclined resistance in voltage stabilizing, therefore, realizes Being adjusted flexibly of output voltage.

Due to this practical in three-terminal voltage-stabilizing unit, be the main time to loaded work piece, be that normal time is main By unit successor, so employing two three-terminal voltage-stabilizing shared power, the peripheral cell one of two three terminal regulators is to ginseng Number one is to the power undertaking is substantially 1/2nd, and load capacity is strong, is in the state that " big horse " draws " dolly ", thus carries The high reliable life of three-terminal voltage-stabilizing 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. 17）, constant current tube（In Fig. 1 8.1）, constant current resistance（In Fig. 1 8.2）, current limiting tube （In Fig. 1 8.3）, base resistance（In Fig. 1 8.5）, stop filling door branch road（In Fig. 1 10.12）, stop filling triggering resistance（Fig. 1 In 10.15）, switch N pipe collector resistance（In Fig. 1 10.11）, switch N pipe（In Fig. 1 10.1）, switch P pipe（In Fig. 1 10.2）, stop filling guiding resistance（In Fig. 1 10.21）, stop filling earth resistance（In Fig. 1 10.23）, stop filling steering diode （In Fig. 1 10.22）, DC-isolation diode（In Fig. 1 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 three-terminal voltage-stabilizing unit, the current supply circuit of load is not interfere with each other, the confession to load for the three-terminal voltage-stabilizing unit The electric loop is the output current of bridge rectifier two, through three-terminal voltage-stabilizing unit to load, is then return to ground wire, that is to say bridge The earth terminal of formula rectification circuit two.

Formed constant current principle be：The emitter stage of constant current tube constant current resistance of having connected becomes negative feedback.Simultaneous Switching is prevented Between the output of thunder unit and base stage, it is connected to current limiting tube, the effect of current limiting, when load current is excessive, and has exceeded current limliting During the threshold value of pipe, base current will shunt, and be no longer pass through audion and amplify, hereby it is ensured that emitter current is certain value.Limit , why with two Diode series, because audion PN value is 0.7V, and the PN of luminous tube section is approximate for stream diode 2.1V, is equivalent to three Diode series, so with a luminous tube.The constant current resistance that emitter stage is connected can enter to constant current Row adjustment.

Benefit with such circuit is that circuit is simplified, reliable, is beneficial to cost-effective simultaneously.

Stopping the reason charging is：When bridge rectifier one has output, stop filling that door branch road forms accumulator Individual threshold value, when the voltage of accumulator is not up to this threshold value, switch N pipe does not start, the colelctor electrode no-voltage of switch P pipe, this When constant current tube to accumulator charge, when the voltage of accumulator exceeds this threshold value, switch N pipe filled triggering, lead to switch P pipe Colelctor electrode output high-order, thus closing constant current tube, accumulator stops charging, and now only trickle resistance provides dimension to accumulator The trickle held.

4th, civil power and accumulator duplicate supply explanation, its power supply trend is as shown in Figure 2.

When mains sometimes, Alternating Current Power Supply rectification exports high pressure, after the alternate current operation unit, enters load unit Power end, conversion and control audion is triggered by conversion and control resistance, and therefore by the earth terminal of load unit, load current is through turning Change the colelctor electrode controlling audion to emitter stage, because the grounded emitter line of conversion audion, be therefore returned to ground wire, that is, It is the earth terminal of Alternating Current Power Supply rectification.

When mains no when, Alternating Current Power Supply rectification no exports, and alternate current operation unit no exports, but now accumulator is to negative Carrier unit is powered, and electric current is after load unit, through direct current conversion controllable silicon（13.1 in Fig. 2）To bridge rectifier one Earth terminal, is the negative terminal of accumulator, completes to power.

5th, the principle explanation of automatic switch unit.

When mains sometimes, Alternating Current Power Supply rectification export high pressure, conversion and control audion（12.2 in Fig. 1）It is triggered, Produce base flow, so conversion and control transistor collector has electric current, its current collection extremely saturation, its base loop is to exchange Power-supply rectifying positive pole, through control unit transistor base to ground, collector current loop is, the output warp of alternate current operation unit Overload unit enters the colelctor electrode of conversion and control audion and then arrives ground.Now direct current conversion controllable silicon no trigger voltage, It is no Anode current, be off-state.

When no mains, Alternating Current Power Supply rectification no exports, conversion and control resistance（12.1 in Fig. 1）No electricity, does not produce Base flow, so conversion and control transistor collector no current, its current collection extremely cut-off state, and the voltage of accumulator is through overload After unit, by direct current transition trigger resistance（In Fig. 1 13.2）Triggering direct current conversion controllable silicon（In Fig. 1 13.1）, now Loop is that the anode of accumulator is through DC-isolation diode（In Fig. 1 9.1）Enter load unit, then through load unit Enter direct current conversion silicon controlled anode afterwards, the earth terminal that silicon controlled negative electrode enters bridge rectifier one changed by direct current, 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, adopt the charging of constant current mode, achieve science charging to being electrically charged pond, enhance maintenance, extend and be electrically charged pond Life-span, decrease scrappage.And employ such charging modes, or even to failed chargeable battery, have a certain degree of Repair.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 unit 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 electronic circuitry of the source of stable pressure that lighning proof type automatically switches.

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；5.11 three terminal regulator one；5.12nd, in voltage stabilizing Resistance one partially；5.13rd, exchange isolating diode one；5.15th, inclined resistance one under voltage stabilizing；5.21 three terminal regulator two；5.22, steady Inclined resistance two in pressure；5.23rd, exchange isolating diode two；5.25th, inclined resistance two under voltage stabilizing；6th, bridge rectifier one；6.1、 Switching diode；7th, trickle resistance；8.1st, constant current tube；8.2nd, constant current resistance；8.3rd, current limiting tube；8.5th, base resistance；9th, electric power storage Pond；9.1st, DC-isolation diode；10.1st, switch N pipe；10.2nd, switch P pipe；10.11st, switch N pipe collector resistance； 10.12nd, stop to fill door branch road；10.15th, stop to fill triggering resistance；10.21st, stop to fill guiding resistance；10.22nd, stop to fill guiding two poles Pipe；10.23rd, stop filling earth resistance；12.1st, conversion and control resistance；12.2nd, conversion and control audion；13.1st, direct current conversion is controlled Silicon；13.2nd, direct current transition trigger resistance；18th, load unit.

Fig. 2 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；5.11 three terminal regulator one；5.12nd, in voltage stabilizing Resistance one partially；5.13rd, inclined resistance one under voltage stabilizing；5.13rd, exchange isolating diode one；5.21 three terminal regulator two；5.22, steady Inclined resistance two in pressure；5.23rd, inclined resistance two under voltage stabilizing；5.23rd, exchange isolating diode two；6th, bridge rectifier one；6.1、 Switching diode；7th, trickle resistance；8.1st, constant current tube；8.2nd, constant current resistance；8.3rd, current limiting tube；8.5th, base resistance；9th, electric power storage Pond；9.1st, DC-isolation diode；10.1st, switch N pipe；10.2nd, switch P pipe；10.11st, switch N pipe collector resistance； 10.12nd, stop to fill door branch road；10.15th, stop to fill triggering resistance；10.21st, stop to fill guiding resistance；10.22nd, stop to fill guiding two poles Pipe；10.23rd, stop filling earth resistance；12.1st, conversion and control resistance；12.2nd, conversion and control audion；13.1st, direct current conversion is controlled Silicon；13.2nd, direct current transition trigger resistance；18th, load unit；20th, Alternating Current Power Supply move towards indicate；22nd, the trend of direct current supply Instruction.

Specific embodiment

Fig. 1 and Fig. 2 have expressed a kind of example of making.

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

2nd, current limiting tube is a luminous tube.

3rd, the power of lightning protection stabilivolt is 1W.

4th, stop to fill door and prop up route stabilivolt to become with Diode series.

5th, three terminal regulator selects 78 series.

2nd, weld：The source of stable pressure that a kind of lighning proof type automatically switches, its concrete electronic circuit welds according to Fig. 1.

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

（1）, the detection symmetry of AC voltage-stabilizing level and output voltage：Test the output end voltage Ying Ji of two three terminal regulators This is the same, if differing to by the resistance of inclined resistance under inclined resistance in adjustment voltage stabilizing or voltage stabilizing.

（2）, detection accumulator floating charge electric unit.

（A）, detection constant current situation：Broken accumulator, welds a fictitious load, with 2 to 3 Diode series, then with tune Whole resistance, is connected with adjustment protective resistance.Wherein this two resistance should select high-power species.

It is connected in the output of constant current with fictitious load, with the ammeter of circuit tester red pen string in fictitious load, or red pen is connected on Diode cathode in fictitious load, black pen connects diode cathode.

The resistance of adjustment fictitious load, the now written instructions of ammeter do not change.If correct, illustrate that constant-current source just works Often.

The current value adjusting constant current is so as to constant current value meets the requirements.

（B）, test accumulator charging with stop the situation of filling：Fictitious load is adjusted to the situation of underfill electricity, now survey and open Close P pipe（In Fig. 1 10.2）Current collection extremely low level, fictitious load is adjusted to fully charged situation, tests the electric current of constant current tube 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. 1 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. 1 10.21）With stop filling steering diode（In Fig. 1 10.22）Sealing-off.

（3）, detection Accessory Battery electric discharge when situation.

Broken civil power, connects load unit, surveys direct current conversion controllable silicon with ammeter（In Fig. 1 13.1）Negative electrode and anode electricity Pressure, its pressure should be saturation voltage, if excessive, is direct current transition trigger resistance（In Fig. 1 13.2）Rosin joint.

(4), the situation of detection switch control unit work.

When there being civil power, conversion and control audion（In Fig. 1 12.2）Current collection extremely low level；It is conversion control as incorrect Resistance processed（In Fig. 1 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.

（5）, detection switch relay lightning protection unit.

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 (4)

1. the source of stable pressure that a kind of lighning proof type automatically switches, is characterized in that：By two rectification units, relay lightning protection unit, three ends are steady Pressure unit, floating charge 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 relay lightning protection unit is made up of protective relay, lightning protection stabilivolt, two diodes：Two bridge rectifiers Output connects a line bag termination of the OR gate of two diode compositions to protective relay, another line bag termination of protective relay Take over control thunder stabilivolt to ground wire, the first normally-closed contact of protective relay connects the output of bridge rectifier one, protective relay The first transfer contact connect floating charge unit, the second normally-closed contact of protective relay connects the output of bridge rectifier two, protection Second transfer contact of relay connects three-terminal voltage-stabilizing unit and switch control unit；

Floating charge unit by constant current tube, trickle resistance, constant current resistance, current limiting tube, base resistance, stop filling door branch road, stop filling triggering Resistance, switch N pipe collector resistance, switch N pipe, switch P manage, stop filling guiding resistance, stop filling earth resistance, stop filling guiding two poles Pipe, DC-isolation diode composition；

The emitter stage of constant current tube connects constant current resistance to the first transfer contact of protective relay, and the colelctor electrode of constant current tube connects accumulator Positive pole, current limiting tube is connected between the first transfer contact of protective relay and the base stage of constant current tube, and base resistance is connected on constant current tube Base stage and ground wire between, trickle resistance is connected between the first transfer contact of protective relay and battery positive voltage, stops filling door Bank branch road and stopping fills triggering resistant series between the base stage of battery positive voltage and switch N pipe, and switch N pipe collector resistance is connected on Between the colelctor electrode of the first transfer contact of protective relay and switch N pipe, the base stage of the emitter stage of switch N pipe and switch P pipe It is connected, the first transfer contact of the emitter stage contact relay of switch P pipe, the colelctor electrode of switch P pipe connects and stops filling the one of guiding resistance End, 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 stops filling steering diode To the base stage of constant current tube, the negative pole of accumulator connects the earth terminal of bridge rectifier one, and the positive pole of accumulator connects DC-isolation two The positive pole of pole pipe；

Three-terminal voltage-stabilizing unit is become with voltage stabilizing diad by voltage stabilizing one unit by three-terminal voltage-stabilizing unit；

Two voltage regulation units are all made up of resistance inclined under resistance inclined in three terminal regulator, voltage stabilizing, voltage stabilizing, exchange isolating diode：

The input of two three terminal regulators is all connected in another transfer contact of fast tripping protection relay, each three terminal regulator Outfan all connects in a voltage stabilizing inclined resistance to earth terminal, and the earth terminal of each three terminal regulator connects inclined resistance under a voltage stabilizing To ground wire, the outfan of two three terminal regulators all connects the positive pole of an exchange isolating diode, two exchange isolating diodes negative Pole is connected with the negative pole of DC-isolation diode, is a kind of output of the source of stable pressure that lighning proof type automatically switches, connects load unit Power end；

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. the source of stable pressure that a kind of lighning proof type according to claim 1 automatically switches, is characterized in that：Current limiting tube is one and lights Pipe.

3. the source of stable pressure that a kind of lighning proof type according to claim 1 automatically switches, is characterized in that：The power of lightning protection stabilivolt For 1W.

4. the source of stable pressure that a kind of lighning proof type according to claim 1 automatically switches, is characterized in that：Stopping filling door, to prop up route steady Pressure pipe is become with Diode series.