CN205811612U - The accurate power supply of scientific floating charge - Google Patents

Abstract

nullThe accurate power supply of scientific floating charge，Belong to electronic technology field，By three end constant-current circuits，Lightning protection device，Accumulator，Direct current component，Locking unit，It is automatically adjusted voltage regulation unit，Isolated location forms，Ripe three-terminal voltage-stabilizing technology is used to match with the high counter-pressure-ing characteristic of audion，Formation various logic combines，The output of rectification is connected to three end constant-current circuits、Lightning protection device、Locking unit and automatic adjustment unit，The output of three end constant-current circuits is connected to the positive pole of accumulator，Battery positive voltage connects direct current component，Locking unit starts when there being exchange，Form the locking to accumulator，For Alternating Current Power Supply，Disconnect without locking unit during exchange，For direct current supply，After enforcement，Overvoltage during AC voltage-stabilizing or depression formation are automatically adjusted by Alternating Current Power Supply，Add the reliability of voltage stabilizing，In direct current supply，The life-span of maximized prolongation accumulator，Solve accumulator fills the problem inconsistent with electric discharge pressure，Thus this power supply has extensive and special purposes.

Description

The accurate power supply of scientific floating charge

Technical field

Belong to electronic technology field.

Background technology

The quality of power supply, directly influences the performance of entirety.Power source performance is good, then overall performance is good.The of particular importance One class situation is, for ordinary electrical home appliance, some important performances can make up with the behavior of employment, such as thundery sky, and can be artificial Pull out power supply, and a lot of equipment can not make up by artificial mode, had once applied for multiple about security personnel's equipment such as this enterprise Product.The product of these equipment is the highest to the requirement of power supply, overcritical degree will significantly larger than ordinary electrical home appliance, by traditional design Scheme is inefficient.Reason is as follows:

One, power supply is often electrical equipment, and the most troublesome keypoint part is the most such to ordinary electrical home appliance.And to being furnished with electric power storage The product in pond is all the more so, because during with accumulator, and the most only load power source, add again the charging current filling accumulator, If accumulator electricity consumption is too much, initial charge stream is very big, thus more exacerbates the load of power supply, thus is easily damaged.

Two is the ordinary electrical home appliance same day at thunderstorm season, can pull out power supply prevention, in the needs used time, (if desired for seeing electricity Apparent time) because being easily alerted, can recover immediately, user is expected.And series products of ensuring public security is the most highly difficult, because dialling Behind power down source, being difficult to intuitively remind, because in the life of high rhythm, forget about that these things are possible, now its protection function is just Malfunctioning, produce security personnel's blank.If user is forgotten to recover, then security personnel will be in security personnel's blank for a long time.And present stable state collection Become in lightning protection, the most weak, as generally input ceiling voltage is only about 30 volts.

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

Four is that security personnel's series products necessarily joins accumulator, and the maintenance of accumulator has higher requirement, wherein charging voltage It is worth different with place value.If load request voltage stabilizing is pressed in voltage stabilizing, then can not meet the requirement of charging, if by the voltage of 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 being battery discharging system System, inevitable is formed or door power supply mode load with mains-supplied system, therefore both be loaded with or the circuit of door character. During battery discharging, most of time is often to save the standard value of 2 volts, and along with discharging, this value also to decline, the therefore output of accumulator Voltage drop is of great value, if or the pressure drop of circuit of door character excessive.The normal standard of deviation then loaded strengthens.Therefore use Any measure makes accumulator not produce too much pressure drop when electric discharge, becomes difficult point.Difficult point three is Set of system, and be that battery system is powered during without civil power, conversion between the two is to automatically switch, the most how could be real Now change scientific.Difficult point four is how to form two parts to power and be independent of each other each other, is i.e. when accumulator breaks down, no Mains-supplied system can be affected, otherwise do not interfere with battery system during mains-supplied system failure.

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 The most perfect, it is necessary first to be exactly the innovation of power supply, so needing brand-new thinking to carry out perfect to power supply.

Summary of the invention

This practical main purpose is, uses ripe three-terminal voltage-stabilizing technology to match with the high counter-pressure-ing characteristic of audion Closing, form various logic combination, have multiple advantage after enforcement, one is that active part is hardly damaged, and two is that anti-overvoltage capabilities is strong, adapts to Face width, three is the life-span of maximized guarantee accumulator, it is achieved science floating charge, four be solve Accessory Battery time charging with put Electricity contradiction, thus this power supply has extensive and special purposes.

Major measure

1, the accurate power supply of scientific floating charge is by three end constant-current circuits, lightning protection device, accumulator, direct current component, locking unit, Being automatically adjusted voltage regulation unit, isolated location collectively constitutes.

Wherein: three end constant-current circuits are adjusted resistance collectively constituted by two three terminal regulators, two isolating diodes, constant current: two The input of individual three terminal regulator all connects rectification output, after the outfan of two three terminal regulators respectively connects an isolating diode Connecing constant current and adjust the resistance positive pole to accumulator, the earth terminal of two three terminal regulators all connects the positive pole of accumulator, accumulator Minus earth line.

Direct current component is started resistance by direct current audion, direct current, direct current adjusts stabilivolt, direct current adjusts resistance and forms: straight The colelctor electrode of stream audion is connected on the positive pole of accumulator, direct current start resistance be connected on the colelctor electrode of direct current audion and base stage it Between, direct current adjusts stabilivolt and direct current and adjusts resistant series between the base stage and ground wire of direct current audion, direct current audion Emitter stage is i.e. the output of direct current component.

Locking unit is triggered resistance by locking audion and locking and forms: locking audion grounded emitter line, lock Closing and trigger between output and the base stage of locking audion that resistance is connected on switch lightning protection unit, the colelctor electrode of locking audion is i.e. The output of locking unit, connects the base stage of direct current audion.

Be automatically adjusted voltage regulation unit by voltage-reg-ulator tube, altemating trigger resistance, commissure resistance, voltage-reference diode, amplifier tube, Inclined resistance composition on potentiometer, upper inclined divider resistance, lower inclined divider resistance, benchmark: it is anti-that the colelctor electrode of voltage-reg-ulator tube connects switch The output of thunder unit, altemating trigger resistance is connected between the colelctor electrode of voltage-reg-ulator tube and base stage, the base stage of voltage-reg-ulator tube with The indirect commissure resistance of the colelctor electrode of amplifier tube, the emitter stage of amplifier tube connects voltage-reference diode to ground wire, and on benchmark, inclined resistance connects Between the emitter stage and the emitter stage of amplifier tube of voltage-reg-ulator tube, upper inclined divider resistance one terminates the transmitting of voltage-reg-ulator tube Pole, one end of another termination potentiometer of upper inclined divider resistance, under another termination of potentiometer, inclined divider resistance is to ground wire, current potential The base stage of the movable termination amplifier tube of device, the emitter stage of voltage-reg-ulator tube is i.e. the output being automatically adjusted voltage regulation unit.

Isolated location is two isolating diode compositions, and the positive pole of isolating diode one connects and is automatically adjusted the defeated of voltage regulation unit Going out, the positive pole of isolating diode two connects the output of direct current component, and the negative pole of two isolating diodes is connected, and is i.e. scientific floating charge The precisely output of power supply.

Rectification output connects a lightning protection device over the ground.

2, the pressure voltage dog days higher than the voltage that rectification exports of lightning protection device.

3, constant current adjusts resistance is adjustable resistance.

4, Current Limiting Diodes is that two Diode series form.

5, direct current audion, voltage-reg-ulator tube, locking audion, amplifier tube are all NPN audion, its back-pressure value >= 300V。

It is further described below:

This is practical is to use ripe three-terminal voltage-stabilizing technology to match with the high counter-pressure-ing characteristic of audion, forms various patrolling Collecting combination, have multiple advantage after enforcement, one is that active part is hardly damaged, and two is that anti-overvoltage capabilities is strong, adapts to face width, and three is maximum In the life-span of the guarantee accumulator changed, it is achieved science floating charge, four is charge and discharge contradiction during solution Accessory Battery, thus should Power supply has extensive and special purposes.

The accurate power supply of scientific floating charge, is belonging to the power supply that alternating current-direct current shares, and designs in the characteristic that alternating current-direct current shares Several Measures, reaches above-mentioned advantage: one is to have employed the circuit form being automatically adjusted in AC voltage-stabilizing, to AC voltage-stabilizing Time overvoltage or depression formation be automatically adjusted, add the reliability of voltage stabilizing, two is to utilize constant-current charge, it is ensured that accumulator is not allowed Fragile, and battery can be realized the maximized charging of charging of science, thus the life-span of maximized prolongation accumulator and appearance Amount, three arrester stages that have been specialized designs, it is thus well known that accumulator charging voltage is higher than running voltage, guarantee accumulator Can charge normal, such as the accumulator of 12V, the standard charge voltage of needs is 13.8V, so alternating current-direct current to be realized shares, just needs Arrester stage during wanting voltage during direct current is also 12V running voltage, and this is practical can solve this problem reliably.

This each measure principle in practical is further described below:

One, the characteristic of voltage regulation unit it is automatically adjusted.

This unit is by voltage-reg-ulator tube (in Fig. 1 5.1), altemating trigger resistance (in Fig. 1 5.2), commissure resistance (Fig. 1 In 5.3), voltage-reference diode (in Fig. 1 5.5), amplifier tube (in Fig. 1 5.6), potentiometer (in Fig. 1 5.7), upper inclined point Inclined resistance (in Fig. 1 5.10) composition on piezoresistance (in Fig. 1 5.8), lower inclined divider resistance (in Fig. 1 5.9), benchmark.

It forms the principle being automatically adjusted: voltage-reg-ulator tube and amplifier tube together form mu balanced circuit accurately, former Because being that the base voltage of amplifier tube is a definite value, be i.e. emitter voltage add 0.7V(because the base voltage of audion all the time More 0.7V than emitter voltage), and lower inclined divider resistance, potentiometer, upper inclined divider resistance is connected jointly becomes a dividing potential drop electricity Road, if the output voltage of voltage-reg-ulator tube is too high, then the base current of amplifier tube is the biggest, thus amplifier tube collector current is just Greatly, the base current of voltage-reg-ulator tube is shunted the biggest, 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 Adding, so output voltage just improves, therefore defining adjustment automatically, so after potentiometer reaches required design load, making In with, the overtension or too low of voltage-reg-ulator tube output, can be formed and be automatically adjusted, add the reliability of voltage stabilizing.

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

Two, three end constant-current circuits form the standard floating charge to accumulator charging formation science, it is ensured that the life of storage battery.

This unit by two three terminal regulators (2.11 in Fig. 1 and 2.21), two isolating diodes (2.12 in Fig. 1 with 2.22), constant current adjusts resistance (in Fig. 1 2.5) composition.

Constant current source in the present invention has two three-terminal voltage-stabilizing parallel connections, connects the form for constant current, each connect one every Making to isolate from diode, share a constant current and adjust resistance, circuit is simplified, and the power of floating charge used is two three terminal regulators Shared, reduces and damages, and constant current is secure.

Three, accumulator the most practical has not only been accomplished standard floating charge by this, and solves that float charge voltage is high and discharge voltage is low Contradiction, being described as follows of its major measure:

Wherein, accumulator electric discharge by be i.e. this most practical in direct current component, by direct current audion (in Fig. 1 9.1), Direct current starts resistance (in Fig. 1 9.2), direct current adjusts stabilivolt (in Fig. 1 9.3), direct current adjusts resistance (in Fig. 1 9.5) Composition.

Accumulator has a very big significance in a lot of electronic equipments, but a lot of power supply is because float charge voltage can not be solved The contradiction that high and discharge voltage is low, in the electronic circuit of a lot of low-voltages, the running voltage of standard mostly is 12V, 24V, and marks Accurate accumulator float charge voltage is all high than the running voltage of standard, and the accumulator standard float charge voltage such as 12V is 13.8V, at electricity Voltage in electronic circuit has phase difference 0.5V to have the biggest relation, therefore, solves alternating current-direct current and shares, and float charge voltage Gao Erfang The contradiction that piezoelectric voltage is low is the most necessary.

Its direct current component is consistent with the adjustment mode in constant current source, and the connection of element is consistent, and base stage stabilivolt adjusts with base stage Resistant series, in the base stage of discharge tube, defines the reference voltage of discharge tube, because the minimum adjusted value of resistance is in small value In the range of, the voltage protecting expensive about 12 volts during because load can be made to obtain battery discharging, so can reliably adjust Go out the running voltage of standard.Thus make load no matter when mains-supplied, or when with battery discharging shape, its power supply is all 12 About volt, so that load obtains burning voltage and keeps due performance.

Locking unit is made up of with resistance partially on locking locking pipe: although only two elements, but define this practicality The pith of type, its principle is, when there being exchange, unidirectional current is closed, and that is to say when there being exchange, and on locking, inclined resistance makes Locking triode ON, thus direct current audion cuts out, direct current transistor base no-voltage, so that direct current triode emission Pole is without output, and when without exchange, the base stage of locking pipe disconnects without trigger voltage, locking audion, direct current triode operation, stores Battery forms electric discharge.

Four, during this is the most practical, it is automatically adjusted voltage regulation unit and is connected to isolating diode, and direct current audion in direct current component Emitter stage is also connected to isolating diode, and its meaning is, forms isolation, makes exchange not interfere with each other with direct current, the most practical is no matter It is all 12V that exchange output or direct current export, and makes to be arranged standby working stability.

Five, there is wider mains input voltage explanation.

1, the scope that civil power is wider can be operated in.

The audion being automatically adjusted in voltage regulation unit is high-power high countervoltage triode, and the back-pressure of its colelctor electrode may be up to 300 volts, so what the voltage of the secondary side of mains transformer can be suitable is higher, mains transformer when therefore civil power is relatively low The voltage of secondary side remains to meet the requirement of device.And when therefore civil power is higher, the output of its switch lightning protection unit still will not Higher than 300 volts, thus it is unlikely to voltage-reg-ulator tube is damaged.Electricity can be operated in hypodynamicly so the most practical Side, and in the too strong place of electric power also without compromising on.In addition it can be formed voltage-reg-ulator tube output voltage too high Yu too low from Dynamic regulation, so also possessing the load-carrying ability of protection.

2, be difficult to when unexpected fluctuation occurs in civil power damaged.

Also because of above-mentioned reason, so when civil power unexpected fluctuation, will not damage easily.

Six, possessed the ability of lightning protection: between rectification output is to ground wire, be connected to lightning protection device, when there being thunderbolt overvoltage, energy Pressure will be gushed rapidly and import ground wire, it is ensured that late-class circuit will be without damage.

A following significant advantage is had after this practical enforcement:

The quality of power supply, directly influences the performance of entirety.Power source performance is good, then overall performance is good.The of particular importance One class situation is, for ordinary electrical home appliance, some important performances can make up with the behavior of employment, such as thundery sky, and can be artificial Pull out power supply, and a lot of equipment can not make up by artificial mode, such as the product of class of ensuring public security, pulls out power supply and just makes " security personnel " to become For blank, as being 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 arbitrarily go to power-off source before equipment, pull out power supply.The another kind of situation of particular importance is that important equipment is general It is furnished with Accessory Battery, as its scientific maintenance directly not affected the life of storage battery and reliability, it would be possible to become a kind of new Trouble point.These things sound very common, but a matter of great account really in engineering.Details success, and the problems referred to above Uncertain genus details.This is practical is the regulated power supply that a kind of performance is the most excellent, and he has all excellences of current product Performance, but also have serial bright spot, therefore can be widely used for the needs of various electronic, adapt to the electronic product moon new The development need that day is different.Concrete condition is as follows:

1, excellent performance, one is that anti-thunder is especially good with overvoltage protection effect, because rectification exports is connected to lightning protection device, and voltage Adjusting Guan Weigao back-pressure large power triode, its back-pressure value is up to 300V.Two is that voltage regulation result is good, because voltage oneself can be formed Dynamic regulation, it is ensured that the effect of voltage stabilizing.

2, having broader adaptation ability than traditional regulated power supply, occurring, unexpected voltage is high, will not damage.And at electricity Pressure lower ground side also can normally work with the period.

3, AC and DC output voltage is the most adjustable, can extensively adapt to the needs of load.AC and DC is separate, the most not shadow Ring, thus further increase reliability.

4, substantially increase the life-span of charger, decrease the scrappage of charger, achieve science fill being electrically charged pond Electricity, enhances maintenance, extends the life-span being electrically charged pond, decreases scrappage.

When 5, using storage battery power supply, can accomplish maximum scientific, its reason one is when battery discharging, can guarantee that direct current The running voltage that voltage is standard of output, thus will not because the float charge voltage of accumulator is high, discharge voltage face is high, thus Do not interfere with the characteristic of load.Two is to automatically switch when without civil power, and accumulator automatically engages immediately, when there being civil power, and electric power storage Pond is excised automatically.

6, simple in circuits, easily produces and debugging, and the debug point that reason one is because in circuit is few.Two be direct current audion, Charging and voltage stabilizing audion, voltage-reg-ulator tube, locking audion, amplifier tube all use high back-pressure NPN audion, so element is easy Look for, easily quantify.

7, cheap, wide adaptability, matching is strong.

Accompanying drawing explanation

Fig. 1 is the electronic circuitry of the accurate power supply of scientific floating charge.

In figure: 1, the output of rectification；2.11, first three terminal regulator；2.21, second three terminal regulator；2.12, One isolating diode；2.22, the second isolating diode；2.5, constant current adjusts resistance；3.1, locking audion；3.11, locking touches Generating resistance；5.1, voltage-reg-ulator tube；5.2, altemating trigger resistance；5.3, commissure resistance；5.5, voltage-reference diode；5.6, amplify Pipe；5.7, potentiometer；5.8, upper inclined divider resistance；5.9, lower inclined divider resistance；5.10, inclined resistance on benchmark；5.11, isolation two Pole pipe one；6, lightning protection device；8, accumulator；9.1, direct current audion；9.2, direct current starts resistance；9.3, direct current adjusts stabilivolt； 9.5, direct current adjusts resistance；9.8, isolating diode two；10, the output of the accurate power supply of scientific floating charge.

Detailed description of the invention

Fig. 1 have expressed the example of making of the accurate power supply of scientific floating charge.

One, element is selected: the pressure voltage dog days higher than the voltage that rectification exports of lightning protection device.

It is adjustable resistance that constant current adjusts resistance.

Current Limiting Diodes is that two Diode series form.

1, direct current audion, voltage-reg-ulator tube, locking audion, amplifier tube are all NPN audion, its back-pressure value >= 300V。

Two, welding: the physical circuit of the accurate power supply of scientific floating charge welds as shown in Figure 1.

Three, the inspection being energized and debugging.

1, the inspection to constant-current source.

Welding a resistor-type fictitious load, circuit is with two Diode series, then series resistance.Design the resistance of series connection Value.Wherein series resistance should select high-power kind.Replace being electrically charged pond with fictitious load.

During detection, the ammeter of circuit tester red pen string is in fictitious load, or the diode that red pen is connected in fictitious load is just Pole, black pen connects diode cathode, adjusts the resistance of fictitious load, and the now written instructions of ammeter do not change.If correct, explanation Constant-current source is working properly.

The current value in regulation constant-current voltage-stabilizing source so that it is constant current value meets the requirements.

2, detection is automatically adjusted voltage regulation unit.

First determine that the voltage stabilizing value of voltage-reference diode, lower inclined divider resistance, potentiometer, upper inclined divider resistance are jointly connected and become One bleeder circuit, it is determined that after the voltage stabilizing value of voltage-reference diode, lower inclined divider resistance becomes energy with the voltage of potentiometer series connection point Determine, if now the emitter voltage of voltage-reg-ulator tube is too high, then reduce the resistance of upper inclined divider resistance, if now voltage The emitter voltage adjusting pipe is too low, then strengthen the resistance of upper inclined divider resistance.

Increasing the voltage of the output of switch lightning protection unit, the emitter stage of voltage-reg-ulator tube surveyed by circuit tester, and its voltage should be with tune Magnitude of voltage after whole is consistent, reduces the voltage of the output of switch lightning protection unit, and the emitter stage of voltage-reg-ulator tube surveyed by circuit tester, its electricity Pressure should be consistent with the magnitude of voltage after adjusting.

3, detection block level: when the output of non-drop switch lightning protection unit, test direct current three pole with the red test pencil of circuit tester The emitter stage of pipe, now shows that voltage is zero, and the output of drop switch lightning protection unit, circuit tester has voltage to indicate, as do not broken During the output of swap switch lightning protection unit incorrect, the most whether the colelctor electrode of test locking audion is zero, as being not zero, is then Locking trigger resistance excessive or unwelded on, as drop switch lightning protection unit output time, direct current transistor emitter is without electricity Pressure, then first drop locking audion, as correctly, illustrates that locking audion damages, as the most incorrect, is then accumulator direct current three pole Pipe damages.

4, detection arrester stage.

Drop civil power, connects load, surveys direct current triode emission pole tension with ammeter, and this voltage should be higher than running voltage 0.7V, (because having the existence of isolating diode), the voltage of voltage regulation error such as direct current adjustment stabilivolt exists, then adjust direct current and adjust Stabilivolt, its error can eliminate.

5, detection switch lightning protection unit.

It is connected on the socket containing AC voltage regulator by the present invention, raises the voltage of pressure regulator, after exceeding certain value, anti- Thunder device will send glittering, be otherwise that lightning protection device damages.

Claims (5)

1. The accurate power supply of the most scientific floating charge, is characterized in that: by three end constant-current circuits, lightning protection device, accumulator, direct current component, lock Closing unit, be automatically adjusted voltage regulation unit, isolated location collectively constitutes；

   Wherein: three end constant-current circuits are adjusted resistance collectively constituted by two three terminal regulators, two isolating diodes, constant current: two three The input of end manostat all connects rectification output, and the outfan of two three terminal regulators respectively connects an isolating diode and is followed by perseverance Stream adjusts the resistance positive pole to accumulator, and the earth terminal of two three terminal regulators all connects the positive pole of accumulator, bearing of accumulator Pole earth lead；

   Direct current component is started resistance by direct current audion, direct current, direct current adjusts stabilivolt, direct current adjusts resistance and forms: direct current three The colelctor electrode of pole pipe is connected on the positive pole of accumulator, and direct current starts between colelctor electrode and the base stage that resistance is connected on direct current audion, Direct current adjusts stabilivolt and direct current and adjusts resistant series between the base stage and ground wire of direct current audion, the transmitting of direct current audion Pole is i.e. the output of direct current component；

   Locking unit is triggered resistance by locking audion and locking and forms: locking audion grounded emitter line, locking touches Generating resistance is connected between output and the base stage of locking audion of switch lightning protection unit, and the colelctor electrode of locking audion is i.e. locking The output of unit, connects the base stage of direct current audion；

   It is automatically adjusted voltage regulation unit by voltage-reg-ulator tube, altemating trigger resistance, commissure resistance, voltage-reference diode, amplifier tube, current potential Inclined resistance composition on device, upper inclined divider resistance, lower inclined divider resistance, benchmark: the colelctor electrode of voltage-reg-ulator tube connects switch lightning protection list The output of unit, altemating trigger resistance is connected between the colelctor electrode of voltage-reg-ulator tube and base stage, the base stage of voltage-reg-ulator tube and amplification The indirect commissure resistance of the colelctor electrode of pipe, the emitter stage of amplifier tube connects voltage-reference diode to ground wire, and on benchmark, inclined resistance is connected on electricity Pressure adjusts between emitter stage and the emitter stage of amplifier tube of pipe, and upper inclined divider resistance one terminates the emitter stage of voltage-reg-ulator tube, on One end of another termination potentiometer of divider resistance partially, under another termination of potentiometer, inclined divider resistance is to ground wire, potentiometer The base stage of movable termination amplifier tube, the emitter stage of voltage-reg-ulator tube is i.e. the output being automatically adjusted voltage regulation unit；

   Isolated location is two isolating diode compositions, and the positive pole of isolating diode one connects the output being automatically adjusted voltage regulation unit, The positive pole of isolating diode two connects the output of direct current component, and the negative pole of two isolating diodes is connected, and is i.e. the essence of scientific floating charge The output of quasi-power supply；

   Rectification output connects a lightning protection device over the ground.
2. The accurate power supply of scientific floating charge the most according to claim 1, is characterized in that: the pressure voltage of lightning protection device compares rectification The voltage height dog days of output.
3. The accurate power supply of scientific floating charge the most according to claim 1, is characterized in that: it is adjustable electric that constant current adjusts resistance Resistance.
4. The accurate power supply of scientific floating charge the most according to claim 1, is characterized in that: Current Limiting Diodes is two diodes It is in series.
5. The accurate power supply of scientific floating charge the most according to claim 1, is characterized in that: direct current audion, voltage-reg-ulator tube, Locking audion, amplifier tube are all NPN audion, its back-pressure value >=300V.