CN205992853U - The adjustable source of double rectification double earth wires - Google Patents

Abstract

The adjustable source of double rectification double earth wires，Belong to electronic technology field，When being a kind of overvoltage in thunderbolt，The alternating current-direct current that fast tripping protection can be formed shares power supply，By two rectification units，Lightning protection unit，Accumulator，Integrated form floating charge unit，DC conversion unit，Voltage stabilizing adjustment unit，Switch control unit，Equivalent load，Isolated location forms，Two rectification units are not only respectively integrated form floating charge unit and provide electric current with voltage stabilizing adjustment unit，More access lightning protection unit，Form fast tripping protection during overvoltage，When there being exchange，Switch control unit starts，Close DC conversion unit，Accumulator is not discharged，When no exchanging，Switch control unit disconnects，DC conversion unit starts，Battery discharging，For direct current supply，After enforcement，Overvoltage during AC voltage-stabilizing or depression formation are automatically adjusted，Floating charge make float charge voltage reach standard，Form the discharge loop in independent floating charge loop and accumulator，Meet the particular/special requirement of specific loads，There is extensive and special purposes.

Description

The adjustable source of double rectification double earth wires

Technical field

This practical genus electronic technology field.

Background technology

Source of stable pressure is the important ingredient of electronic product, and the quality of power supply directly affects overall performance, electronic product Make rapid progress, need the function of power supply also will tend to reach perfection and could meet the requirement of product, so having much outstanding steady at present Voltage source.Although but the power supply of these voltage stabilizings has many good qualities, needs with rapid changepl. never-ending changes and improvements still can not be met.

Medical device as used by hospital, the requirement to power supply for these products is just very high, and overcritical degree will be significantly larger than commonly Household electrical appliances, are 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 medical device class product is really highly difficult, also not Power supply may be pulled out.And present stable state is integrated in lightning protection, very weak.

The three particularity importances being because medical device change more it is therefore necessary to will adapt to electrical network in design On a large scale, key benefit reason one is when voltage ripple of power network, integrated regulator will not originally be penetrated and cause to damage.Reason two Be, 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 Medical treatment device Material can have bigger use space.

Four are essential to join accumulator, and the maintenance of accumulator has higher requirement, wherein charging voltage value and place value Different.If load request voltage stabilizing is pressed in voltage stabilizing, the requirement of charging can not be met, if by the voltage charging as requirement, 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, certainty and city Electric electric power system forms OR gate power supply mode to load, therefore both and the circuit being loaded with an OR gate property.Battery discharging When most of time be 2 volts of standard value of every section, with discharging, this value also will decline, and the output voltage drop of therefore accumulator is very precious Expensive, if the pressure drop of the circuit of OR gate property is excessive.The normal standard of deviation then loading increases.What therefore made using measure Accumulator does not produce excessive pressure drop in electric discharge, becomes difficult point.Difficult point three is to be set of system when there being civil power to load, and No civil power when be that battery system is powered again, conversion between the two is to automatically switch, and therefore how just to enable conversion science Change.Difficult point four is how to form two parts and power to be independent of each other each other, is when accumulator breaks down, does not interfere with civil power Electric power system, on the contrary do not interfere with battery system during mains-supplied system failure.Difficult point five, some data proposition relays To make to switch, this scheme has multiple deficiencies, and wherein one important point deficiency is power consumption, difficult point six is, some scheme cost mistakes Height, is not suitable for the popularization of product.

Content of the invention

This practical main purpose is to propose a kind of New Measure, in measure, employs automatic tune in AC voltage-stabilizing The circuit form of section, automatically adjusts to overvoltage during AC voltage-stabilizing or depression formation, increased the reliability of voltage stabilizing, in floating charge With ripe three-terminal voltage-stabilizing technically, increase adjustable factors, make float charge voltage reach standard, after this measure is implemented, formed solely Vertical floating charge loop and the discharge loop of accumulator, form duplicate supply with Alternating Current Power Supply, meet the particular/special requirement of specific loads, from And this power supply has extensive and special purposes.

1st, the adjustable source of double rectification double earth wires is by two rectification units, lightning protection unit, accumulator, integrated form floating charge list Unit, DC conversion unit, voltage stabilizing adjustment unit, switch control unit, equivalent load, isolated location forms.

Wherein：Two rectification units are bridge rectifier, and difference is, the ground wire of rectification unit one terminates at directly Switch in stream-converting unit on the emitter stage of audion.

Lightning protection unit is made up of the diode of fast tripping protection relay, lightning protection stabilivolt, two OR gates, rectification unit one defeated The line bud termination going out diode to the fast tripping protection relay respectively connecing an OR gate with the output of rectification unit two is normally closed with two Contact, another line bud termination is taken over control thunder stabilivolt and is arrived ground wire, two transfer contacts of fast tripping protection relay one of change Contact connects the input of floating charge device in integrated form floating charge unit, and another transfer contact connects voltage-reg-ulator tube in voltage stabilizing adjustment unit Control one end of resistance partially on audion in colelctor electrode and switch control unit.

Integrated form floating charge unit is made up of resistance inclined under resistance inclined in floating charge, floating charge device, floating charge：The input termination of floating charge device One transfer contact of overvoltage protection relay, the output of floating charge device terminates resistance partially in floating charge and, to the earth terminal of floating charge device, floats The ground connection filling device terminates the emitter stage that inclined resistance under floating charge switches audion in automatic switch unit, the output termination of floating charge device The positive pole of accumulator.

Voltage stabilizing adjustment unit triggers resistance, commissure resistance, voltage-reference diode, amplifier tube, current potential by voltage-reg-ulator tube, voltage stabilizing Inclined resistance composition on device, upper inclined divider resistance, lower inclined divider resistance, benchmark：The colelctor electrode of voltage-reg-ulator tube connects rectification output, surely Pressure triggering resistance is connected between the colelctor electrode of voltage-reg-ulator tube and base stage, the base stage of voltage-reg-ulator tube and the colelctor electrode of amplifier tube it Commissure resistance indirectly, the emitter stage of amplifier tube connects voltage-reference diode to ground wire, and on benchmark, inclined resistance is connected on sending out of voltage-reg-ulator tube Between emitter-base bandgap grading and the emitter stage of amplifier tube, upper inclined divider resistance one terminates the emitter stage of voltage-reg-ulator tube, upper inclined divider resistance One end of another termination potentiometer, under another termination of potentiometer, inclined divider resistance is to ground wire, the activity termination amplification of potentiometer The base stage of pipe, the emitter stage of voltage-reg-ulator tube is the output of voltage stabilizing adjustment unit.

Switch control unit by control inclined resistance on audion, control audion, control transistor collector resistance form.

DC conversion unit is by switching audion, switch unit diode one, switch unit diode two form.

The end controlling resistance partially on audion is connected in another transfer contact of fast tripping protection relay, controls audion Another termination of upper inclined resistance controls the base stage of audion, controls the grounded emitter line of audion, controls the current collection of audion Extremely two-way, a road connects the positive pole controlling transistor collector resistance to accumulator, and another road connects the base stage of switching audion, etc. The output of one termination Alternating Current Power Supply of effect load, another termination switches the colelctor electrode of audion, and switch unit diode one is connected on Between the switching colelctor electrode of audion and ground wire, switch unit diode two be connected on switching audion emitter stage and ground wire it Between.

Isolated location is made up of three isolating diodes：The positive pole of accumulator is connect respectively with the outfan of two three terminal regulators The positive pole of one isolating diode, the negative pole of isolating diode is connected, and is the output of the adjustable source of double rectification double earth wires.

2nd, floating charge device adopts the integrated regulator of 78 series.

3rd, voltage-reg-ulator tube, amplifier tube, control audion, switching audion back-pressure value all >=200V.

It is further described below：

The adjustable source of double rectification double earth wires, when being a kind of overvoltage in thunderbolt, can form the alternating current-direct current of fast tripping protection altogether Power supply, employs the circuit form automatically adjusting in AC voltage-stabilizing, to overvoltage during AC voltage-stabilizing or depression formation from Dynamic regulation, increased the reliability of voltage stabilizing, with ripe three-terminal voltage-stabilizing technology in floating charge, increases adjustable factors, makes to float Charging voltage reaches standard, and forms the discharge loop in independent floating charge loop and accumulator, forms duplicate supply with Alternating Current Power Supply, full The particular/special requirement of sufficient specific loads, thus this power supply has extensive and special purposes.

First, automatically adjust the characteristic of voltage regulation unit.

This unit is by voltage-reg-ulator tube（In Fig. 1 7.1）, altemating trigger resistance（In Fig. 1 7.2）, commissure resistance（Fig. 1 In 7.3）, voltage-reference diode（In Fig. 1 7.5）, amplifier tube（In Fig. 1 7.6）, potentiometer（In Fig. 1 7.7）, upper inclined point Piezoresistance（In Fig. 1 7.8）, lower inclined divider resistance（In Fig. 1 7.9）, resistance partially on benchmark（In Fig. 1 7.10）Composition.

It forms the principle automatically adjusting：Voltage-reg-ulator tube and amplifier tube together form accurately mu balanced circuit, former Because being that the base voltage of amplifier tube is a definite value, is that emitter voltage adds 0.7V（Because the base voltage of audion is all the time 0.7V more than emitter voltage）, and the common series connection of lower inclined divider resistance, potentiometer, upper inclined divider resistance becomes a partial pressure electricity Road, if the output voltage of voltage-reg-ulator tube is too high, the base current of amplifier tube is bigger, thus amplifier tube collector current is just Greatly, the base current shunting to voltage-reg-ulator tube is bigger, thus the output voltage of voltage-reg-ulator tube is reduced by, whereas if Output voltage is too low, and the base current of amplifier tube reduces, and amplifier tube collector current reduces, and the base current of voltage-reg-ulator tube increases Plus, so output voltage just improves, therefore define adjust automatically, so after potentiometer reaches required design load, making With in, voltage-reg-ulator tube output overtension or too low, can be formed and automatically adjust, increased the reliability of voltage stabilizing.

In this unit, do not adopt 78 conventional series, and voltage-reg-ulator tube and amplifier tube all adopt high back-pressure high-power Audion, topmost benefit is, the high back-pressure of audion, and far beyond only 30 volts of technical specification of 78 series, lightning protection effect is good. Also have the characteristics that voltage regulation result is good simultaneously.Thus improve the reliable life of power supply source.

2nd, this practical explanation having very strong overvoltage protection ability.

There is good anti-overvoltage protection explanation：There is multi-stage protection unit, when rectification output end is to being connected with high voltage transient, speed The stabilivolt that disconnected protective relay is connected suctions through, and its corresponding normally-closed contact disconnects, and rear class is formed with protection quick-break, therefore to thunder Hit protective effect, form the protection of the lightning protection first order.The principle that this protection is formed is that rear class is cut off, rather than short circuit, So good effect, numerous equipment of many Compact Power Plants lightning protection it is simply that adopting this fast tripping protection.

Two ends wherein one end of the line bud of fast tripping protection relay connects the output of two rectifications through the diode of OR gate, another Terminate lightning protection stabilivolt to ground wire, because the voltage stabilizing voltage of stabilivolt several volts higher than the output of rectification, therefore in normal state, Lightning protection stabilivolt will not be breakdown, and the transfer contact of fast tripping protection relay is communicated with normally-closed contact, that is to say the input of rear class All be equivalent to and be connected in rectification output, and once there being thunderbolt overvoltage, after overvoltage exceeds the pressure voltage of lightning protection stabilivolt, lightning protection Stabilivolt is breakdown, fast tripping protection relay adhesive, and its transfer contact is disconnected with normally-closed contact, the input dead electricity of rear class, thus Protect late-class circuit.

It is that the pressure of anti-thunder tube is typically all upper hectovolt with the benefit that such circuit forms switching behavior lightning protection, tens The very difficult of volt is looked for, and for such low-voltage for general 12V, 24V, 36V, the anti-thunder tube with hectovolt is clearly incorrect , and the voltage stabilizing voltage of stabilivolt selects very well, can within the scope of very low, and the reason using relay be, relay Device response is rapid, can quickly thunderbolt be responded, so selecting fast tripping protection relay and lightning protection stabilivolt to collectively constitute Switch lightning protection forms protection to circuit.

The explanation of the 3rd, independent charge circuit feature.

Not being in high-grade equipment, typically supporting floating charge loop and load circuit do not have completely separable, so causing A lot of disadvantages.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 About volt, if not designing separate circuit, when civil power has electricity, power output end is 13.8 volts about for a long time, and this is to only Need 12 volts of load unfavorable.If power end output adjustment is 12 volts, though load request can be met, but float departing from accumulator Fill required 13.8 volts.Devise accumulator floating charge and discharge cell for this system.Its floating charge principle is, when civil power has electricity, Rectification unit one（1 in Fig. 1）Middle bridge rectifier output has electricity, the floating charge level pressure unit in direct current supply partly, then passes through Accumulator returns to the ground terminal of bridge rectifier in a unit, is also the negative terminal of accumulator, thus forms floating charge loop, according to kirschner Law, and the experiment of circuit, this floating charge loop is self-existent, mutual not to the current supply circuit of load with voltage stabilizing adjustment unit Interference, voltage stabilizing adjustment unit to load current supply circuit be rectification unit two output current, through voltage stabilizing adjustment unit arrive bear Carry, be then return to ground wire, that is to say the negative terminal of rectification unit two.

With when simultaneously, have inclined resistance in floating charge（2.2 in Fig. 1）With resistance inclined under floating charge（2.3 in Fig. 1）Floating charge can be carried out The adjustment of voltage, so standard value can be transferred to by float charge voltage.

4th, civil power and accumulator duplicate supply explanation.

When mains sometimes, in rectification unit two, bridge rectifier has output, after voltage stabilizing adjustment unit, load supply Electricity, electric current is through switch unit diode one（11.2 in Fig. 1）To ground wire, it is the negative pole of bridge rectifier in rectification unit two. Because now switching audion（11.1 in Fig. 1）Become off state.

When mains no when, in rectification unit two, bridge rectifier no exports, and voltage stabilizing adjustment unit no exports, but now stores Battery powers to the load, electric current audion after overload, in switch unit（11.1 in Fig. 1）To rectification unit one jackshaft Formula rectification negative terminal, is the negative terminal of accumulator, completes to power.

5th, the principle explanation of switch unit.

When mains sometimes, in rectification unit two, bridge rectifier has output, controls audion（6.2 in Fig. 1）, control three Inclined resistance in pole pipe（6.1 in Fig. 1）There is electricity, produce base flow, so controlling audion（6.2 in Fig. 1）Colelctor electrode has electric current, its collection Electrode is saturation, and its base loop is, rectification unit two（4 in Fig. 1）Middle bridge-type rectifier tube positive terminal, through controlling three poles To ground, collector current loop is pipe base stage, alternating current unit outfan enter through collector resistance and control audion（Figure 6.2 in 1）Colelctor electrode then arrive ground.So switching audion（11.1 in Fig. 1,）For ending off-state.

When mains no when, in rectification unit two, bridge rectifier has output, controls audion（6.2 in Fig. 1）, control three Inclined resistance in pole pipe（6.1 in Fig. 1）No electricity, does not produce base flow, so controlling audion（6.2 in Fig. 1）Colelctor electrode no current, its Current collection extremely cut-off state, so switching audion（11.1 in Fig. 1）For saturation conduction state.Switching audion now（Fig. 1 In 11.1）Base loop be that the feeder ear of accumulator is through controlling transistor collector resistance（6.3 in Fig. 1）Enter switching The base stage of audion, emitter stage, then into the negative pole of bridge-type rectifier tube in rectification unit one, is the negative pole of accumulator.Negative Carry the positive pole that electric current is accumulator, enter the colelctor electrode of switching audion after overload, then arrive emitter stage, emitter stage is then Enter into the negative pole of bridge-type rectifier tube in rectification unit one, be the negative pole of accumulator.

There is following significant advantage after this practical enforcement：

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 is practical to be a kind of very excellent regulated power supply of performance, and he has all excellent properties of current product, and also has Serial bright spot, therefore can be widely used for the needs of various electronic, adapting to the different development of the electronic product moon new day needs Will.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.In addition There is an adjustable element, thus the optimum that floating charge can be adjusted to needed for accumulator, thus the maintenance to accumulator has been accomplished Big is scientific.

When the 2nd, using storage battery power supply, can accomplish maximum scientific, its reason one is in battery discharging, can decline quickly To such as 2 volts of the nominal value often lying prostrate, now will be maintained at this value for a long time, now because employing switching audion in this measure （11.1 in Fig. 1）, electric discharge when pressure drop only can reduce 0.1 volt about, this is to be difficult to any method,（If using two poles Pipe can decline 0.7 volt）, so that load can obtain accumulator and protect expensive discharge voltage, basically identical when supplying with civil power, thus not The characteristic loading can be affected.Two is power saving, proposes the method with relay, but relay consumes very much in some technical data Electricity, very unfavorable to supporting accumulator.

3rd, voltage stabilizing adjustment 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, thus Impact will not be produced on load.Ensure that the performance of load.

4th, excellent performance, one is that anti-thunder is especially good with overvoltage protection effect it is ensured that late-class circuit is without damage, and voltage Adjustment Guan Weigao back-pressure large power triode, its back-pressure value >=200V.Three is that voltage regulation result is good, because the automatic of voltage can be formed Adjust it is ensured that the effect of voltage stabilizing.There is broader adaptability than traditional regulated power supply, unexpected voltage is high occurring, will not Damage.And in voltage, lower ground side and period also can normal works.

5th, excellent performance, one is that overvoltage protection effect is especially good.Because defining multi-stage protection.

6th, 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.

Brief description

Fig. 1 is the electronic circuitry of the adjustable source of double rectification double earth wires.

In figure：0th, Circuit Fault on Secondary Transformer input；1st, rectification unit one；2.1st, floating charge device；2.2nd, inclined resistance in floating charge；2.3、 Inclined resistance under floating charge；3rd, accumulator；4th, rectification unit two；5.1st, the diode one of OR gate；5.2nd, the diode two of OR gate；5.3、 Fast tripping protection relay；5.4th, lightning protection stabilivolt；5.5th, a transfer contact of fast tripping protection relay；5.6th, fast tripping protection continues Another transfer contact of electrical equipment；6.1st, control inclined resistance on audion；6.2nd, control audion；6.3rd, control transistor collector Resistance；7.1st, voltage-reg-ulator tube；7.2nd, altemating trigger resistance；7.3rd, commissure resistance；7.5th, voltage-reference diode；7.6th, amplifier tube； 7.7th, potentiometer；7.8th, upper inclined divider resistance；7.9th, lower inclined divider resistance；7.10th, inclined resistance on benchmark；9.1st, isolating diode One；9.2nd, isolating diode two；10th, equivalent load；11.1st, switch audion；11.2nd, switch unit diode one；11.3, cut Change cell diodes two.

Fig. 2 is to move towards figure to accumulator floating charge loop and battery discharging electric current.

In figure：0th, Circuit Fault on Secondary Transformer input；1st, rectification unit one；2.1st, floating charge device；2.2nd, inclined resistance in floating charge；2.3、 Inclined resistance under floating charge；3rd, accumulator；4th, rectification unit two；5.1st, the diode one of OR gate；5.2nd, the diode two of OR gate；5.3、 Fast tripping protection relay；5.4th, lightning protection stabilivolt；5.5th, a transfer contact of fast tripping protection relay；5.6th, fast tripping protection continues Another transfer contact of electrical equipment；6.1st, control inclined resistance on audion；6.2nd, control audion；6.3rd, control transistor collector Resistance；9.1st, isolating diode one；10th, equivalent load；11.1st, switch audion；11.2nd, switch unit diode one； 11.3rd, switch unit diode two；16th, accumulator floating charge loop current is moved towards；15th, accumulator is walked to load discharge loop To.

Specific embodiment

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

First, select element.

1st, floating charge device adopts the integrated regulator of 78 series.

2nd, voltage-reg-ulator tube, amplifier tube, control audion, switching audion back-pressure value all >=200V.

2nd, weld：Electronic circuit welds according to Fig. 1.

3rd, the inspection of energising and debugging：Power supply is allowed to connect load equivalent electrical impedance first.

1st, detection automatically adjusts voltage regulation unit.

First determine voltage-reference diode（In Fig. 2 7.5）Voltage stabilizing value, lower inclined divider resistance（In Fig. 2 7.9）, potentiometer （In Fig. 2 7.7）, upper inclined divider resistance（In Fig. 2 7.8）Common series connection becomes a bleeder circuit it is determined that benchmark voltage stabilizing After the voltage stabilizing value of pipe, the voltage of lower inclined divider resistance and potentiometer series connection point becomes and can determine that, if now the sending out of voltage-reg-ulator tube Emitter voltage is too high, then reduce the resistance of upper inclined divider resistance, if now voltage-reg-ulator tube（In Fig. 2 7.1）Emitter stage Brownout, then increase the resistance of upper inclined divider resistance.

Increase rectification unit two output voltage, circuit tester survey voltage-reg-ulator tube emitter stage, its voltage should with adjustment after Magnitude of voltage consistent, reduce the voltage of rectification output, the emitter stage of voltage-reg-ulator tube surveyed by circuit tester, its voltage should with adjustment after Magnitude of voltage is consistent.

2nd, detect situation during Accessory Battery floating charge.Inclined resistance in adjustment floating charge（2.2 in Fig. 1）With resistance inclined under floating charge （2.3 in Fig. 1）, make floating charge value reach standard.

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

Broken civil power, connects equivalent load, surveys switching audion with ammeter（11.1 in Fig. 1）Emitter stage and colelctor electrode electricity Pressure, its pressure drop should be less than 0.2 volt, if excessive, should reduce control transistor collector resistance（6.3 in Fig. 1）Resistance.

4th, the situation of detection control unit work.

When there being civil power, control audion（6.2 in Fig. 1）Current collection extremely low level；It is to control on audion as incorrect Resistance sealing-off, or audion pin wrong plug partially.When no civil power, control audion（6.2 in Fig. 1）Current collection extremely high-order；As Incorrect is to control transistor collector resistance sealing-off.

5th, detect the situation of lightning protection unit.

Two transfer contacts of broken fast tripping protection relay and the connection of rear class, respectively connect a resistance in two transfer contacts On string, display lamp is to ground wire.In not overvoltage, two display lamps are all bright, and exchange is connected on the socket containing AC voltage regulator, Raise the voltage of pressure regulator, after exceeding certain value, two display lamps put out, and are otherwise fast tripping protection relay damaged.

Claims (3)

1. the adjustable source of pair rectification double earth wire, is characterized in that：By two rectification units, lightning protection unit, accumulator, integrated form floats Fill unit, DC conversion unit, voltage stabilizing adjustment unit, switch control unit, equivalent load, isolated location forms；

Wherein：Two rectification units are bridge rectifier, and difference is, the ground wire of rectification unit one terminates at direct current and turns Change on the emitter stage switching audion in unit；

Lightning protection unit is made up of the diode of fast tripping protection relay, lightning protection stabilivolt, two OR gates, the output of rectification unit one with The output of rectification unit two respectively connects the diode of an OR gate to a line bud termination of fast tripping protection relay and two normally-closed contacts, Thunder stabilivolt is taken over control to ground wire in another line bud termination, two transfer contacts of fast tripping protection relay one of transfer contact connect The input of floating charge device in integrated form floating charge unit, another transfer contact connects the colelctor electrode of voltage-reg-ulator tube in voltage stabilizing adjustment unit And in switch control unit, control one end of resistance partially on audion；

Integrated form floating charge unit is made up of resistance inclined under resistance inclined in floating charge, floating charge device, floating charge：The input of floating charge device takes over pressure One transfer contact of protective relay, in the output termination floating charge of floating charge device, resistance partially is to the earth terminal of floating charge device, floating charge device Ground connection terminate partially resistance under floating charge and switch the emitter stage of audion in automatic switch unit, the output of floating charge device terminates electric power storage The positive pole in pond；

Voltage stabilizing adjustment unit by voltage-reg-ulator tube, voltage stabilizing trigger resistance, commissure resistance, voltage-reference diode, amplifier tube, potentiometer, On upper inclined divider resistance, lower inclined divider resistance, benchmark, resistance partially forms：The colelctor electrode of voltage-reg-ulator tube connects rectification output, voltage stabilizing Triggering resistance is connected between the colelctor electrode of voltage-reg-ulator tube and base stage, between the base stage of voltage-reg-ulator tube and the colelctor electrode of amplifier tube Connect commissure resistance, the emitter stage of amplifier tube connects voltage-reference diode to ground wire, and on benchmark, inclined resistance is connected on the transmitting of voltage-reg-ulator tube Between pole and the emitter stage of amplifier tube, upper inclined divider resistance one terminates the emitter stage of voltage-reg-ulator tube, upper inclined divider resistance another One end of one termination potentiometer, under another termination of potentiometer, inclined divider resistance is to ground wire, the activity termination amplifier tube of potentiometer Base stage, the emitter stage of voltage-reg-ulator tube is the output of voltage stabilizing adjustment unit；

Switch control unit by control inclined resistance on audion, control audion, control transistor collector resistance form；

DC conversion unit is by switching audion, switch unit diode one, switch unit diode two form；

The end controlling resistance partially on audion is connected in another transfer contact of fast tripping protection relay, controls on audion partially Another termination of resistance controls the base stage of audion, controls the grounded emitter line of audion, controls the current collection of audion extremely Two-way, a road connects the positive pole controlling transistor collector resistance to accumulator, and another road connects the base stage of switching audion, equivalent negative The output of the termination Alternating Current Power Supply carrying, another termination switches the colelctor electrode of audion, and switch unit diode one is connected on switching Between the colelctor electrode of audion and ground wire, switch unit diode two is connected between emitter stage and the ground wire of switching audion；

Isolated location is made up of three isolating diodes：The outfan of the positive pole of accumulator and two three terminal regulators connects one respectively The positive pole of isolating diode, the negative pole of isolating diode is connected, and is the output of the adjustable source of double rectification double earth wires.

2. the adjustable source of according to claim 1 pair of rectification double earth wire, is characterized in that：Floating charge device adopts 78 series Integrated regulator.

3. the adjustable source of according to claim 1 pair of rectification double earth wire, is characterized in that：Voltage-reg-ulator tube, amplifier tube, Control audion, switching audion back-pressure value all >=200V.