CN204886344U - P type is formula pulse current charge ware regularly - Google Patents

Abstract

P type is formula pulse current charge ware regularly belongs to electron technical field, the display circuit that charges, and PNP charging circuit, interface circuit, integrated form pulse circuit, timing circuit finishes the circuit, and the load is constituteed. Circular telegram back integrated form pulse circuit begins the vibration, and what control interface circuit was continuous opens and end, makes continuous the opening and break off of PNP charging circuit, forms charging of pulse form. Its end is used timing circuit and is finished the circuit, after the timing, it starts to finish the circuit, the integrated form pulse circuit close, interface circuit stops, PNP charging circuit closes and stops to charge, it makes the vibration among the timing circuit stop shaking to finish the circuit, trickle resistance among the PNP charging circuit is to provided the sustaining trickle by the rechargable battery at this moment, the back is implemented in this measure, the science distribution that realizes charge time and stop the time of filling, reach the charge time length and stop short science of the time of filling and charge, thereby the extension of maximize is by the life -span of rechargable battery and capacity, realize the environmental protection of society.

Description

P type timing pulse charger

Technical field

Belong to electronic technology field.

Background technology

This enterprise is applying for security personnel's product line for the previous period, and this product must reserce cell, otherwise when without civil power, protection function will become a kind of illusory, and time without civil power, when may be again exactly the peak that security personnel's accident occurs.So reserce cell is required.And the performance of reserce cell is directly connected to overall performance.

But reserce cell is necessarily to its charge maintenance, to the scientific maintenance of reserce cell, be directly connected to the life-span of reserce cell, with capacity.Have data to think, battery is not usually damaged, but charge improper and damage.Battery in security personnel's equipment, belongs to reserve battery, has particular/special requirement to volume capacity, is equipped with and makes excessive demands in common product.

For ensureing the performance of security personnel's product that this enterprise applies for, the live part of this enterprise can not adopt the common charging method to battery and common charging circuit.

The charging method of its routine adopts single DC charging method, and such method all can make electrolyte continue to produce hydrogen or oxygen gas, and its oxygen, under internal high pressure effect, infiltrates into negative pole and the effect of cadmium plate generates CDO, causes pole plate available capacity to decline.If employing pulse current charge, and adopt charging and stop filling and the method for depositing, namely fill certain hour, as 5 seconds, just stop certain hour as 1 second.Major part is reduced into electrolyte by the oxygen that such charging process produces under discharge pulse, gassing rate can be made greatly to reduce, reducing gassing rate can make concentration polarization and ohmic polarization naturally be eliminated, thus alleviate the interior pressure of lead acid accumulator, the pulse current charge of next stage is more successfully carried out, thus makes lead acid accumulator can absorb more electricity.Intermittent pulse makes lead acid accumulator have more sufficient chemical time, thus decreases the gassing rate of lead acid accumulator in charging process, and the charging current that improve lead acid accumulator can ability to accept.Pulse charging method charging certain hour, as 5 seconds, stops certain hour as 1 second, so circulates.The oxygen that this charging method can make lead acid accumulator produce in charging process and hydrogen are under stopping charging pulse, the oxygen that major part is separated out and hydrogen have been reduced into again electrolyte, this not only reduces lead acid accumulator internal electrical chemical side reactions in charging process---the gassing rate that the electrolysis of water produces, and cause the lead acid accumulator of inefficacy to also have repair to seriously polarizing, after using this charging method to the certain number of times of lead acid accumulator discharge and recharge lost efficacy, the capacity recovery gradually of lead acid accumulator can be made.Not only according to data introduction by charging not only but also stopping the way of filling, not only helpful to lead accumulator, and some alkaline cells are also helped positively.

Along with enriching of the modern life, get more and more by the kind of the electrical equipment of battery, except security personnel's equipment that this enterprise is studied, also have a lot of product, as digital machine machine, mobile phone, etc., the requirement of its charger, also the place of similar enterprise requirements is had, so the research to charger, not only involve the quality of charger itself, also involve by the problem of rechargable battery two aspects.Because an a little good charging measure has positive meaning.

Summary of the invention

Main purpose of the present utility model is, a kind of mode is proposed, realize charging certain hour, stop again the pulse charging manner filling certain hour, adopt the combination of integrated circuit and resolution element, can realize the charging interval and stop the science of the time of filling and distributes, reaching the charging interval grows and stops the time of filling short science and charge, thus maximized prolongation is by the life-span of rechargable battery and capacity, realize the environmental protection of society.

The technical measures adopted are:

1, P type timing pulse charger is by charging display circuit, PNP charging circuit, interface circuit, integrated form impulse circuit, timing circuit, and terminate circuit, load forms jointly.

Wherein: PNP charging circuit is made up of PNP charging valve, biasing resistance, trickle resistance: the emitter of PNP charging valve connects signal input, the base stage of one termination PNP charging valve of biasing resistance, the collector electrode of interface triode in biasing resistance other end interface circuit, namely the collector electrode of PNP charging valve is the output of PNP charging circuit, and trickle resistance is connected between signal input and the output of PNP charging circuit.

Charging display circuit shows protective resistance and charging process luminous tube by charging process and is in series, be connected on signal input and in interface circuit interface triode collector electrode between.

Interface circuit is made up of interface triode, interface triode trigger resistance: the grounded emitter line of interface triode, and interface triode trigger resistance is connected between the output of 555 integrated circuits in integrated form impulse circuit and the base stage of interface triode.

Integrated form impulse circuit is made up of 555 integrated circuits, charging paths, discharge paths, integrating capacitor.

Charging paths is formed by charge adjustable resistance and charge protection resistant series; Discharge paths is formed by discharge adjustable resistance and discharge prevention resistant series.

The high threshold end of 555 integrated circuits connects with low valve end, charging paths is connected between the power end of 555 integrated circuits and the discharge end of 555 integrated circuits, discharge paths is connected between the discharge end of 555 integrated circuits and high threshold end, the indirect integrating capacitor of high threshold end and ground wire.

Timing control unit is made up of counter and the peripheral oscillating circuit of timing and clear circuit.

The peripheral oscillating circuit of timing is made up of oscillating capacitance, protective resistance, oscillation resistance; Oscillation resistance is in series by the adjustable resistance that vibrates, vibration limiting resistance.

Three vibration ends of counter connect one end of oscillating capacitance, oscillation resistance, protective resistance respectively, and the other end of oscillating capacitance, oscillation resistance, protective resistance connects, and becomes oscillation center point, the power supply termination signal input of counter.

Clear circuit by resetting electric capacity, reset resistance, earth resistance and form: the power end resetting a termination counter of electric capacity, the other end resetting electric capacity is two-way, and a road connects earth resistance to ground wire, and another road connects the clear terminal of clearing resistance to counter.

Terminate circuit by terminating triode, end trigger resistance, end trigger diode, terminate clamp diode and form: terminate the ultimate output that the base stage of triode connects counter, terminate the grounded emitter line of triode, terminate the negative pole of the collector electrode access node bundle clamp diode of triode, the positive pole terminating clamp diode connects oscillation center point, and end trigger diode and end trigger resistance are serially connected between the ultimate output of counter and the high threshold end of 555 integrated circuits.

Load shows branch road form by being contacted with by rechargable battery by rechargable battery: be connected between the output of charhing unit and ground wire by rechargable battery.

By rechargable battery contact display route by rechargable battery contact protection resistance with contacted display lamp by rechargable battery and form, contacted display lamp by rechargable battery contact protection resistance with by rechargable battery and be connected on by between the positive pole of rechargable battery and ground wire.

2, oscillating capacitance is the form of electrodeless electric capacity by two electrochemical capacitors series connection, and the negative pole of two electrochemical capacitors connects, and the positive pole of an electrochemical capacitor connects a vibration end of counter, and the positive pole of another electrochemical capacitor connects oscillation center point.

3, end clamp diode and end trigger diode are face fit type diode.

4, counter adopts binary counter CD4060.

Further illustrate:

1, operation principle explanation.

After opening power supply, all unit are started working, and integrated form impulse circuit starts vibration, and control interface is constantly opened and cut-off, and PNP charging circuit is constantly opened and disconnection, form the charging of impulse form.

The rule of its pulse current charge is: when the output of 555 integrated circuits in integrated form impulse circuit is for high-order, interface triode is filled triggering, its current collection very low level, PNP charging circuit is open-minded, charge to by rechargable battery, otherwise the current collection of interface triode is very high-order, PNP charging circuit cuts out, and stops charging.Such charging modes is conducive to the scientific maintenance to battery, also has restitution to a certain degree to the battery damaged simultaneously.

This measure adopts timing as terminating, when regularly when time is up, counter output exports high-order, produce following effect, the first via triggers the high threshold end of 555 integrated circuits by end trigger resistance (8.2 in Fig. 2) and the series arm of end trigger diode (8.3 in Fig. 2), thus cause 555 ic outputs to be low level, make interface triode (5.1 in Fig. 2) current collection very high-order, thus the PNP charging valve in PNP charging circuit loses biased, and become the open-circuit condition of cut-off, stop charging to by rechargable battery.Second tunnel is high-order because counter output exports, thus cause terminating triode (8.1 in Fig. 2) current collection very low level, terminate the current collection of triode by terminating the vibration of counter of clamp diode (8.5 in Fig. 2) clamper, make counter failure of oscillation and keep existing state, until the beginning of charging next time.Now connected tiny stream current resistor (3.8 in Fig. 2) is to the tiny stream electric current being provided required maintenance by rechargable battery.

2, line feature analysis.

(1), interface circuit.

Be made up of interface triode (5.1 in Fig. 2), interface triode trigger resistance (5.3 in 2).

Interface triode mainly contains four large functions.

One is the pulse current charge logic producing PNP charging circuit.Its reason is under the excitation of integrated form impulse circuit, through the transmission of this pipe, makes the base stage of PNP charging valve in PNP charging circuit produce the pulse change of height.(when interface transistor collector is low level, PNP charging valve is forward bias, is the state of energising, otherwise when interface transistor collector is high-order, PNP charging valve is without biased, is off state) thus make the collector electrode of PNP charging valve produce the change of height shape.Whole charging process is made to become pulse current charge shape.

Two is become complete charge status switch pipe.When regularly when time is up, counter (7.1 in Fig. 2) output exports high-order, end triode (8.1 in Fig. 2) in finishing control unit, export low level signal, the high threshold end of 555 integrated circuits (6.1 in Fig. 2) in clamper integrated form impulse circuit, thus the output of this 555 integrated circuit exports low level, cannot encourage interface transistor base, cause interface transistor collector voltage for high-order, PNP charging valve is closed.

Three is the expansions realizing voltage and current relationship, because this circuit can be used for higher being charged by the battery of rechargable battery and relatively high power, its charging voltage may be 12 volts as being 24 volts, the voltage that voltage high like this may bear higher than 555 integrated circuits, simultaneously when being Large Copacity by rechargable battery, the base current of PNP charging valve may be very large, so can by expanding after mouth triode, and unfettered.

Four is produce charging process Presentation Function.When interface transistor collector is low level, charging process luminous tube (2.2 in Fig. 2) is bright, and it is very high-order that charging terminates current collection, and charging process luminous tube does not work.

(2), integrated form impulse circuit.

Be characterized in being not only a clapp oscillator, be also designed with frequency and duty ratio adjusting circuit in the line.

Integrated form impulse circuit has 2 effects, and one is control control PNP charging circuit by interface triode (5.1 in Fig. 2), and makes the form of charging become the form of pulse current charge.Two is the adjustments realizing frequency and duty ratio.Making the overall process of charging, realizing charging and the recombination process stopping filling, remain best situation.

This unit is made up of 555 integrated circuits (6.1 in Fig. 2), charging paths, discharge paths, integrating capacitor (6.6 in Fig. 2).

Charging paths is in series by the adjustable resistance that charges (6.2 in Fig. 2) and charge protection resistance (6.3 in Fig. 2); Discharge paths is in series by the adjustable resistance that discharges (6.5 in Fig. 2) and discharge prevention resistance (6.4 in Fig. 2).

Equivalent charging resistor due to integrating capacitor is that charging paths is connected with discharge paths sum, so the charging interval is long, and discharge paths resistance is little, so this circuit and correlation unit of the present invention mate very much, can realize fine adjustment simultaneously.

The principle forming vibration is that, after energising, because integrating capacitor (6.6 in Fig. 2) underfill is electric, so the power end of 555 integrated circuits (6.1 in Fig. 2) is by the charging of charging paths to integrating capacitor, low valve end is low level, becomes the front half period of vibration.After the voltage of integrating capacitor is charged to the current potential of the threshold values of high threshold end, the discharge end of 555 integrated circuits exports low level, and integrating capacitor can only be discharged to 555 IC interior discharge tubes (discharge ends of 555 integrated circuits) by discharge paths.In this measure, charge constant is large, and discharge time is little, so the time that 555 ic outputs are in a high position is long, anti-phase through interface triode (5.1 in Fig. 2), causes the charging interval long, and it is short to stop the time of filling, what therefore meet in one-period is long by the charging interval of rechargable battery, and stops the time of filling short logic.Also because long to the integrating capacitor charging interval, charging adjustable resistance (6.2 in Fig. 2) is namely related to frequency of oscillation, is related to duty ratio again, so charging adjustable resistance becomes " adjusting greatly ".Otherwise the electric discharge adjustable resistance of the discharge paths of integrating capacitor (6.5 in Fig. 2) becomes " ditty " that frequency and duty ratio adjust.Also because above-mentioned reason, " adjusting greatly " and " ditty " can be passed through, so can to being realized relative maximum scientific charge and discharge maintenance effect by the charging of rechargable battery.

(3), timing control unit.

This unit is made up of counter (7.1 in Fig. 2) and the peripheral oscillating circuit of timing.

The peripheral oscillating circuit of timing is made up of oscillating capacitance (7.5 in Fig. 2), protective resistance (7.2 in Fig. 2), oscillation resistance; And oscillation resistance forms a kind of frequency adjustment branch road by the adjustable resistance that vibrates (7.3 in Fig. 2), vibration limiting resistance (7.4 in Fig. 2).

The function of this unit mainly contains three, and one is provide pulse signal to counter inside, allows counter normally work.Two is to carry out frequency tune, and its effect is with after the coordinating of counter, and can produce the time adjustment that the charging interval terminates.Thus applicability is widely had to by rechargable battery.

Three vibration ends of counter, connect oscillating capacitance, oscillation resistance, protective resistance respectively to oscillation center point, and oscillating capacitance and oscillation resistance are the adjustment to counter frequency of oscillation, can be learnt the time of counting by the frequency of vibration.If the series value of two resistance of oscillation resistance is large, then longer to the time of oscillating capacitance charge or discharge, then period of oscillation is longer.To form oscillation resistance resistance can become the reason of frequency-adjustable.The reason that the cycle that is to say is adjustable.At frequency-adjustable branch road, fixed resistance is the restriction to frequency-adjustable resistance minimum value.

Another feature of this unit be oscillating capacitance have employed two capacitances in series without polar form, thus the electric leakage of the larger electrochemical capacitor of capacity can be made to become very little, thus vibrate and very reliably do not stop polarization, relative frequency is accurate simultaneously, after coordinating with counter, timing is relatively accurate, to meet the requirement of mill run.

The function of counter is mainly as follows: one is after coordinating with peripheral oscillating unit, produce clocking capability, once timing terminates, send instruction to terminating circuit, thus shutdown system correlation unit, stop the charging to battery, if now user does not take out by rechargable battery, can not overcharge, because oscillating unit quits work, pulse-free signal inputs.Do not produce frequency division.The frequency division output terminal of counter does not change.Two is that the output of counter can become one of flexible adjustment point of time timing, to adapt to the battery of different model.

The effect of clear circuit is, when being energized, all to counter O reset at every turn, ensures the consistency of each gate time.

Its feature one is, reliable in function, and after coordinating with peripheral oscillating unit, the length of timing has very wide time range.Two is that timing is comparatively accurate, because present invention employs electrodeless electric capacity as fundamental oscillation element during oscillatory meter, electrodeless electric capacity has higher leakage coefficient, and therefore frequency is accurate, can reach the requirement of mill run accurate timing completely.Three is one of timing frequency division output terminal adjustment points that can become the time.Three is that peripheral element is few.This part is cheap simultaneously, workable.

(4), circuit is terminated.

Terminate circuit by terminate triode (8.1 in Fig. 2), end trigger resistance (8.2 in Fig. 2), end trigger diode (8.3 in Fig. 2), terminate clamp diode (8.5 in Fig. 2) form: the end triode (8.1 in Fig. 2) encouraged by the ultimate output of counter, mainly contain three to act on greatly, one is the high threshold end triggering 555 collecting circuits (6.1 in Fig. 2) by the high signal that the ultimate output of counter exports, make interface triode (5.1 in Fig. 2) current collection very high, thus end stop live part charging.Two is with transistor collector low level clamper oscillation center point, makes counter failure of oscillation, can not produce overcharge conditions.

Outstanding advantage is had after the invention process:

1, the enforcement of this measure, to being achieved science charging by rechargable battery, enhances maintenance, extends by the life-span of rechargable battery, decrease scrappage, can strengthen the environmental protection of two kinds of products.Environmental protection is without minor matter, so this measure has positive effect.

2, important economic worth is also had, for the value of common electronic product, as this series products of charger, do not having under famous and precious first material, so first is Value of Science & Technology, second is manually add expense, 3rd cost being only element, and the element that the present invention increases is limited.After this measure is implemented, one by rechargable battery life, and two is that capacity significant change can not occur, and therefore society is bound to accept, and admit its scientific value, therefore this excellent product can replace the product of inferior quality.Due in the modern life, this product purpose is very general, so can produce significant economic worth.

3, the pulse current charge form of filling not only but also stopping is adopted, there is significant maintenance effects to by rechargable battery, some critics claim that chargeable battery is filled on the net bad, instead of damage, and this measure can be closed by the relative maximum scientific maintenance of the charging of rechargable battery, particularly to acid battery.And with such charging with stop the mode of filling, the capacity of battery and life-span can not only be made to reduce, even make defective cell can obtain recovery to a certain extent, so meaning is very large.

4, excellent performance of the present invention, one is adjustable flexibly to the ratio of being stopped between the time of filling by the charging of rechargable battery, namely be that duty ratio is adjustable, two is frequency-adjustable of paired pulses, three is to adjustable flexibly by the timing of charging voltage complete charge, so from multi-angle stage construction, adapted to variety classes model by rechargable battery model.Another important point can charge to jumbo battery, as long as now the triode in charging circuit is changed to large power triode.In addition the present invention is not afraid of in addition and overcharges etc. advantage.

5 to be connected with each unit science, and have accomplished comprehensive utilization, and thus line circuit is simplified, reliability is high.

6, easily produce, easily debug, be well suited for minuscule-type-enterprise and produce.

Accompanying drawing explanation

Fig. 1 is P type timing pulse charger frame principle figure.

In figure: 1, signal input; 2, charging display unit; 3, PNP charging circuit; 5, interface circuit; 6, integrated form impulse circuit; 7, timing circuit; 8, circuit is terminated; 10, load.

Fig. 2 is P type timing pulse charger engineering philosophy figure.

In figure: 1, signal input; 2.1, charging process display protective resistance; 2.2, charging process luminous tube; 3.8, trickle resistance; 3.11, PNP charging valve; 3.12, biasing resistance; 5.1, interface triode; 5.3, interface triode trigger resistance; 6.1,555 integrated circuits; 6.2, charge adjustable resistance; 6.3, charge protection resistance; 6.4, discharge prevention resistance; 6.5, discharge adjustable resistance; 6.6, integrating capacitor; 7.1, timer; 7.2 protective resistance; 7.3, vibrate adjustable resistance; 7.4, vibrate limiting resistance; 7.5, oscillating capacitance; 7.6, electric capacity is reset; 7.8, resistance is reset; 7.7, earth resistance; 7.9, oscillation center point; 8.1, triode is terminated; 8.2, end trigger resistance; 8.3, end trigger diode; 8.5, clamp diode is terminated; 10.1, by rechargable battery; 10.2, by rechargable battery contact protection resistance; 10.3, indicator light is contacted by rechargable battery.

Fig. 3 is dummy load and detect PNP and await orders and manage and a kind of testing circuit figure of NPN charging valve.

In figure: 1, signal input; 2.1, charging process display protective resistance; 2.2, charging process luminous tube; 3.11, PNP charging valve; 3.12, biasing resistance; 3.9, the output of P type charhing unit; 5.1, interface triode; 5.3, interface triode trigger resistance; 10.2, by rechargable battery contact protection resistance; 10.3, indicator light is contacted by rechargable battery; 20.1, inclined adjustable resistance in dummy load; 20.2, inclined protective resistance in dummy load; 20.3, inclined resistance under dummy load; 20.5, dummy load triode; 20.6, dummy load transistor collector resistance; 30, ammeter.

Fig. 4 is the detection figure of the ultimate output of detection counter.

In figure: 1, signal input; 7.1, timer; 7.2 protective resistance; 7.3, vibrate adjustable resistance; 7.4, vibrate limiting resistance; 7.5, oscillating capacitance; 7.6, electric capacity is reset; 7.8, resistance is reset; 7.7, earth resistance; 7.9, oscillation center point; The resistance of 7.15, newly-increased quickening vibration; 8.1, triode is terminated; 8.5, clamp diode is terminated.

Embodiment

Fig. 1 Fig. 2 example has gone out a kind of concrete enforcement example of making, the detection figure during Fig. 3 Fig. 4 example goes out to implement.

One, select element: oscillating capacitance is the form of electrodeless electric capacity by two electrochemical capacitors series connection, and the negative pole of two electrochemical capacitors connects, the positive pole of an electrochemical capacitor connects a vibration end of counter, and the positive pole of another electrochemical capacitor connects oscillation center point.End clamp diode and end trigger diode are face fit type diode.Counter adopts binary counter CD4060.

Two, making sheet, welding: make circuit control panel by Fig. 2, the schematic diagram of map interlinking 2 welds.

PNP charging circuit is made up of PNP charging valve (3.11 in Fig. 2), biasing resistance (3.12 in Fig. 2), trickle resistance (3.8 in Fig. 2): the emitter of PNP charging valve connects signal input, the base stage of one termination PNP charging valve of biasing resistance, the collector electrode of interface triode in biasing resistance other end interface circuit, namely the collector electrode of PNP charging valve is the output of PNP charging circuit, and trickle resistance is connected between signal input and the output of PNP charging circuit.

Charging display circuit shows protective resistance (2.1 in Fig. 2) and charging process luminous tube (2.2 in Fig. 2) by charging process and is in series, between the collector electrode being connected on interface triode (5.1 in Fig. 2) in signal input and interface circuit.

Interface circuit is made up of interface triode (5.1 in Fig. 2), interface triode trigger resistance (5.3 in Fig. 2): the grounded emitter line of interface triode, between the output that interface triode trigger resistance is connected on 555 integrated circuits in integrated form impulse circuit (6.1 in Fig. 2) and the base stage of interface triode.

Integrated form impulse circuit is made up of 555 integrated circuits (6.1 in Fig. 2), charging paths, discharge paths, integrating capacitor (6.6 in Fig. 2).

Charging paths is in series by the adjustable resistance that charges (6.2 in Fig. 2) and charge protection resistance (6.3 in Fig. 2); Discharge paths is in series by the adjustable resistance that discharges (6.5 in Fig. 2) and discharge prevention resistance (6.4 in Fig. 2).

The high threshold end of 555 integrated circuits connects with low valve end, charging paths is connected between the power end of 555 integrated circuits and the discharge end of 555 integrated circuits, discharge paths is connected between the discharge end of 555 integrated circuits and high threshold end, the indirect integrating capacitor of high threshold end and ground wire.

Timing control unit is made up of counter (7.1 in Fig. 2) and the peripheral oscillating circuit of timing and clear circuit.

The peripheral oscillating circuit of timing is made up of oscillating capacitance (7.5 in Fig. 2), protective resistance (7.2 in Fig. 2), oscillation resistance; Oscillation resistance is in series by the adjustable resistance that vibrates (7.3 in Fig. 2), vibration limiting resistance (7.4 in Fig. 2).

Three vibration ends of counter connect one end of oscillating capacitance, oscillation resistance, protective resistance respectively, and the other end of oscillating capacitance, oscillation resistance, protective resistance connects, and becomes oscillation center point, the power supply termination signal input of counter.

Clear circuit by resetting electric capacity (7.6 in Fig. 2), reset resistance (7.8 in Fig. 2), earth resistance (7.7 in Fig. 2) form: the power end of a termination counter of clearing electric capacity, the other end resetting electric capacity is two-way, one tunnel connects earth resistance to ground wire, and another road connects and resets the clear terminal of resistance to counter.

Terminate circuit by terminating triode (8.1 in Fig. 2), end trigger resistance (8.2 in Fig. 2), end trigger diode (8.3 in Fig. 2), terminate clamp diode (8.5 in Fig. 2) and form: the base stage of end triode connects the ultimate output of counter, terminate the grounded emitter line of triode, terminate the negative pole of the collector electrode access node bundle clamp diode of triode, the positive pole terminating clamp diode connects oscillation center point, and end trigger diode and end trigger resistance are serially connected between the ultimate output of counter and the high threshold end of 555 integrated circuits.

Load shows branch road form by being contacted with by rechargable battery by rechargable battery: be connected between the output of charhing unit and ground wire by rechargable battery.

Contacted display lamp (in Fig. 2 10.3) by rechargable battery contact protection resistance (10.2 in Fig. 2) with by rechargable battery by a rechargable battery contact display route to form, contacted display lamp by rechargable battery contact protection resistance with by rechargable battery and be connected on by between the positive pole of rechargable battery and ground wire.

Three, energising checks and debugging.

1, to inspection and the debugging of the energising of integrated form impulse circuit.

The inspection of the large tune of frequency and duty ratio and ditty is connected to the output of integrated form impulse circuit with oscillographic hot junction, cold junction ground connection.

After being powered up, the vibration figure display that oscilloscope has, and this instruction is in one-period, high bit time is few, low bit time is long, then uses " ditty " i.e. (6.3 in Fig. 2) frequency and this duty ratio to be transferred to most benefit with " adjust greatly " adjustable resistance that namely charges (6.2 in Fig. 2).

2, the logical check of docking port triode.

A, to connect connect 555 integrated circuits (6.1 in Fig. 2) high threshold end with power supply, now this pipe collector should be high-order, estimates the collector electrode of PNP charging valve (3.11 in Fig. 2) without electricity, otherwise be that line is wrong with voltmeter.Charging process luminous tube (2.2 in Fig. 2) now should not work.

B, to connect connect the low valve end of 555 integrated circuit with power supply, now interface triode (5.1 in Fig. 2) collector electrode should be low level, and correct situation has electricity with the collector electrode that PNP charging valve (3.11 in Fig. 2) measured by voltmeter, and should be saturated.If incorrect, may be that its biasing resistance (3.12 in Fig. 2) resistance is excessive, charging process luminous tube light now.

3, to the energising inspection of PNP charging circuit.

Connect upper dummy load as shown in Figure 3, replace by rechargable battery.The type of attachment of dummy load is: in dummy load, inclined adjustable resistance (20.1 in Fig. 3) forms the adjustable partially upper of dummy load with inclined protective resistance (20.2 in Fig. 3) in dummy load; connect the base stage of dummy load triode (20.5 in Fig. 3); the base stage of dummy load triode to connect under dummy load resistance (20.3 in Fig. 3) partially over the ground, and dummy load transistor collector resistance (20.6 in Fig. 3) connects between the output of PNP charging circuit and the collector electrode of dummy load triode.

Dummy load is adjusted to the form of underfill electricity.

By the base stage of electric power connection interface triode trigger resistance (5.3 in Fig. 3), the now current collection of interface triode very low level.

By ammeter (30 in Fig. 3) string between the collector electrode and the output of PNP charging circuit of PNP charging valve, now ammeter has electric current to indicate.

The base stage of property-line connection interface triode (5.1 in Fig. 3), now the current collection of interface triode is very high-order, and by ammeter (30 in Fig. 3) string between the collector electrode and the output of PNP charging circuit of PNP charging valve, now ammeter is zero.

Correct above, illustrating that PNP charging circuit is working properly, as incorrect, is then that connection is wrong.

4, to the inspection of the peripheral oscillating circuit of timing.

The inspection of the operating state of A, charging process.

One end of oscillating capacitance (7.5 in Fig. 2) is connected, cold junction ground connection with oscillographic hot junction.

This circuit is peripheral simple, after having the connection adopting electrodeless electric capacity, can not leak electricity in addition, and after being powered up, oscilloscope there will be the display of vibration figure immediately.

If incorrect, it is wrong to be only that element is welded to connect.

B, frequency-adjustable inspection.

The resistance of adjustment vibration adjustable resistance (7.3 in Fig. 2) and vibration limiting resistance (7.4 in Fig. 2), the scope of regulating frequency is made to meet the requirement of design, period of oscillation can be calculated by the frequency of vibration, can according to period of oscillation, and the frequency division output terminal of counter, calculate the scheduled time of timing.

5, to timing control unit and the inspection and the debugging that terminate power on circuitry.

By the fast debugging method be energized to counter (7.1 in Fig. 4).As shown in Figure 4, the very little resistance of a resistance is newly increased at oscillation resistance two ends, this hour counter frequency of oscillation is accelerated, ultimate output has high-order output very soon, and pass to end circuit, now charging process luminous tube (2.2 in Fig. 2) is put out by bright change, oscillation center point is connected with oscilloscope hot junction, be now failure of oscillation state, be namely or be high-order, be namely or be low level.Now interface triode (5.1 in Fig. 2) current collection is very high-order, the output no-voltage of PNP charging circuit.

Illustrate 1, by the fast debugging method be energized to counter, after also going up the little resistance of new resistance, the quickening that frequency is extremely acute, cycle pole drastic change is short, and this causes the very fast resultful reason of the ultimate output of counter.Illustrate 2, charge and terminate rear failure of oscillation, mean, output no longer changes, and maintenance this kind of state is started to the charging of new second time.

6, check by rechargable battery contact display branch road.

When installation is by rechargable battery, and when switching on power, contacted indicator light (10.3 in Fig. 2) Ying Liang by rechargable battery, if incorrect, may be anti-by the weldering of rechargable battery contact indicator light polarity, or excessive by rechargable battery contact protection resistance (10.2 in Fig. 2) resistance.

7, to the detection of trickle current.

Be connected on by ammeter on trickle resistance (3.8 of Fig. 2) branch road, debugging tiny stream resistance, makes tiny stream electric current meet the requirements.Its rule is that more small area analysis is larger for resistance.Otherwise resistance more big current is less.

Claims (4)

1.P type timing pulse charger, is characterized in that: by charging display circuit, PNP charging circuit, interface circuit, integrated form impulse circuit, timing circuit, and terminate circuit, load forms jointly;

Wherein: PNP charging circuit is made up of PNP charging valve, biasing resistance, trickle resistance: the emitter of PNP charging valve connects signal input, the base stage of one termination PNP charging valve of biasing resistance, the collector electrode of interface triode in biasing resistance other end interface circuit, namely the collector electrode of PNP charging valve is the output of PNP charging circuit, and trickle resistance is connected between signal input and the output of PNP charging circuit;

Charging display circuit shows protective resistance and charging process luminous tube by charging process and is in series, be connected on signal input and in interface circuit interface triode collector electrode between;

Interface circuit is made up of interface triode, interface triode trigger resistance: the grounded emitter line of interface triode, and interface triode trigger resistance is connected between the output of 555 integrated circuits in integrated form impulse circuit and the base stage of interface triode;

Integrated form impulse circuit is made up of 555 integrated circuits, charging paths, discharge paths, integrating capacitor;

Charging paths is formed by charge adjustable resistance and charge protection resistant series; Discharge paths is formed by discharge adjustable resistance and discharge prevention resistant series;

The high threshold end of 555 integrated circuits connects with low valve end, charging paths is connected between the power end of 555 integrated circuits and the discharge end of 555 integrated circuits, discharge paths is connected between the discharge end of 555 integrated circuits and high threshold end, the indirect integrating capacitor of high threshold end and ground wire;

Timing control unit is made up of counter and the peripheral oscillating circuit of timing and clear circuit;

The peripheral oscillating circuit of timing is made up of oscillating capacitance, protective resistance, oscillation resistance; Oscillation resistance is in series by the adjustable resistance that vibrates, vibration limiting resistance;

Three vibration ends of counter connect one end of oscillating capacitance, oscillation resistance, protective resistance respectively, and the other end of oscillating capacitance, oscillation resistance, protective resistance connects, and becomes oscillation center point, the power supply termination signal input of counter;

Clear circuit by resetting electric capacity, reset resistance, earth resistance and form: the power end resetting a termination counter of electric capacity, the other end resetting electric capacity is two-way, and a road connects earth resistance to ground wire, and another road connects the clear terminal of clearing resistance to counter;

Terminate circuit by terminating triode, end trigger resistance, end trigger diode, terminate clamp diode and form: terminate the ultimate output that the base stage of triode connects counter, terminate the grounded emitter line of triode, terminate the negative pole of the collector electrode access node bundle clamp diode of triode, the positive pole terminating clamp diode connects oscillation center point, and end trigger diode and end trigger resistance are serially connected between the ultimate output of counter and the high threshold end of 555 integrated circuits;

Load shows branch road form by being contacted with by rechargable battery by rechargable battery: be connected between the output of charhing unit and ground wire by rechargable battery;

By rechargable battery contact display route by rechargable battery contact protection resistance with contacted display lamp by rechargable battery and form, contacted display lamp by rechargable battery contact protection resistance with by rechargable battery and be connected on by between the positive pole of rechargable battery and ground wire.

2. P type timing pulse charger according to claim 1, it is characterized in that: oscillating capacitance is the form of electrodeless electric capacity by two electrochemical capacitors series connection, the negative pole of two electrochemical capacitors connects, the positive pole of an electrochemical capacitor connects a vibration end of counter, and the positive pole of another electrochemical capacitor connects oscillation center point.

3. P type timing pulse charger according to claim 1, is characterized in that: end clamp diode and end trigger diode are face fit type diode.

4. P type timing pulse charger according to claim 1, is characterized in that: counter adopts binary counter CD4060.