CN86102566A - The multifunctional control circuit that overcurrent protection is arranged - Google Patents
The multifunctional control circuit that overcurrent protection is arranged Download PDFInfo
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- CN86102566A CN86102566A CN 86102566 CN86102566A CN86102566A CN 86102566 A CN86102566 A CN 86102566A CN 86102566 CN86102566 CN 86102566 CN 86102566 A CN86102566 A CN 86102566A CN 86102566 A CN86102566 A CN 86102566A
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 53
- 238000004804 winding Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 16
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 230000008447 perception Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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Abstract
The invention discloses a kind of microminiaturized contactless multifunctional control circuit with overcurrent protection.It is a kind of alternating current switching circuit of using bidirectional triode thyristor, in the current sampling control circuit in the overcurrent breaking circuit, add suitable electric capacity or various senser respectively, circuit has just had corresponding controlled function automatically, the power supply of circuit is made up of another bidirectional triode thyristor circuit that is connected on jointly in the AC power circuit with this circuit, also can supply with the transformer low voltage winding power supply of institute's adapted main frame.Circuit can trigger automatically with manual or pulse, and when triggering automatically with pulse, circuit can automatically reset.
Description
The invention relates to a kind of multifunctional control circuit, particularly have the microminiaturized contactless multifunctional control circuit of overcurrent protection.It is a kind of switching circuit of using bidirectional triode thyristor, current sampling control circuit by bidirectional triode thyristor and the common series connection of input ac power is formed the overcurrent breaking circuit, in the current sampling control circuit in the overcurrent breaking circuit, add suitable electric capacity or various senser respectively, circuit has just had corresponding controlled function automatically.This circuit can be designed to multi-functional automatic control circuit and the automatically reset multi-functional automatic control circuit that overcurrent protection is arranged of energy that manual triggers has overcurrent shutoff effect; The power supply of this circuit can be supplied with by another bidirectional triode thyristor circuit that is connected in the alternating current input power supplying, also can be supplied with by the transformer low voltage winding of institute's adapted main frame.
In electronic circuit, realize that the usual practice of overcurrent protection is to add various protective circuits in output control circuit, but since during some electrical equipment low pressure output electric current bigger, need to use the higher high power device of price; Simultaneously, because current foldback circuit designs in output control circuit, after control circuit cut out, control circuit partly also will continue to consume some electric energy; Also there is the people on input ac power, to add current-limiting protection circuit, though achieve success, still need use withstand voltage higher AC relay to make contact switch, and just there is the problem that the life-span is short, volume is big, cost is high in this.
For making the user rationally Yu economically use equipment, in the design of automatic control equipment, people make great efforts to work out multiduty as far as possible automatic control circuit, for example both can be used for overcurrent protection, can be used for light, heat, magnetic, wet etc. automatic control again.
Task of the present invention provides a kind of miniature multi-function control circuit with overcurrent protection, this circuit can be according to the size of the needs current limit predetermined value of complete machine and fast automatic power cutoff, on the overcurrent breaking circuit, as long as suitable electric capacity or the various senser of adding respectively, circuit has just had corresponding time-delay, and light-operated, temperature control, magnetic control, wet control etc. are controlled function automatically; Because the present invention has adopted special supply bidirectional triode thyristor to obtain the method for synchro source, thereby realized the microminiaturization of entire circuit.
The scheme of its solution is: with bidirectional triode thyristor is switch element, and forms the overcurrent breaking circuit by this switch element and with the current sampling circuit of the common series connection of input ac power; Suitable electric capacity or the various senser of adding respectively on the emitter junction of the oxide-semiconductor control transistors of overcurrent breaking circuit or collector junction, circuit has just had corresponding controlled function automatically.The power supply that the multi-functional automatic control circuit of overcurrent shutoff effect is arranged is made of another bidirectional triode thyristor circuit that is connected in the alternating current input power supplying.The startup of entire circuit and to reset be to be undertaken by the manual triggers knob.
The power supply that the multi-functional automatic control circuit of overcurrent shutoff effect is arranged also can be supplied with the transformer low voltage winding power supply of institute's adapted main frame.
The invention has the advantages that the size that to set current limit shutoff value as required, it is dexterous convenient that circuit adapts to multiple function control, control highly sensitive, contactless, the current capacity that permission is passed through is big, the voltage adaptation wide ranges, automatically low in energy consumption, pressure drop is low, power saving, the control device cost made from this method is low, volume is little (have only matchbox big).
Further improvement of the present invention is on the current limliting breaking circuit, replaces the manual triggers knob with a pulsed triggering circuit that automatically resets with transistor avalanche effect principle design, to realize auto-reset function.
Accompanying drawing 1-4 is several embodiments of the present invention:
Accompanying drawing 1: manual triggers has the multi-functional automatic control circuit schematic diagram of overcurrent protection.
Accompanying drawing 2: can the automatically reset multi-functional automatic control circuit schematic diagram that overcurrent protection is arranged.
Accompanying drawing 3: with car band charger automatic control equipment schematic diagram.One embodiment of the present of invention.
Accompanying drawing 4: the multi-functional automatic control circuit schematic diagram that overcurrent protection is arranged that transformer low voltage winding power supply is supplied with.It is another embodiment of the present invention.
As shown in Figure 1, power input (20) and (10), bidirectional triode thyristor (T
1) the two poles of the earth (A
1) be connected (A with input (10)
2) be connected bidirectional triode thyristor (T with contact (C)
1) be connected resistance (R successively between the control utmost point and contact (B)
1), diode (D
1), triode (BG
1) collector electrode is connected with contact (B), is connected diode (D successively between contact (C) and contact (A)
2), resistance (R
2), triode (BG
1) base stage is connected triode (BG with contact (A)
1) emitter be contact (D) with contact (C) between be connected resistance (R
4), be connected to manual knob (K) between contact (C) and input (10); Contact (D) and (B) indirect voltage stabilizing didoe (D
3), contact (B) and contact (F) indirect resistance (R
6), contact (F) and (D) indirect electric capacity (C
1), contact (D) and contact (E) indirect resistance (R
5), contact (E) and (F) indirect diode (D
4); Contact (D) and (E) meet bidirectional triode thyristor (T respectively
2) two utmost point (A
2') and (A
1'), be connected resistance (R successively between the control utmost point of bidirectional triode thyristor and contact (E)
6), diode (D
5), contact (E) and input (20) be load (R indirectly
L), so far entire circuit is finished.By resistance (R
1), (R
2), (R
4) and diode (D
1), (D
2) and triode (BG
1), bidirectional triode thyristor (T
1), knob (K) formed multi-functional control measure (I); By resistance (R
2), (R
5), (R
6) and diode (D
3), (D
4), (D
5) and bidirectional triode thyristor (T
2), electric capacity (C
1) formed power supply and supply with measure (Π).
Among Fig. 1, bidirectional triode thyristor (T
1) be the switch element of overcurrent breaking circuit, resistance (R
4) be current sampling resistor.After knob (K) was pressed, electric current was at resistance (R
5) two ends formation interchange pressure drop (～V
DE), its positive half cycle is through diode (D
4) after the rectification to electric capacity (C
1) charging, electric capacity (C
1) on positive voltage through resistance (R
3), diode (D
1), resistance (R
1) be added in bidirectional triode thyristor (T
1) control extremely go up electric capacity (C
1) on negative voltage through electricity group (R
4) be added in bidirectional triode thyristor (T
1) a utmost point (A
2) on, make the bidirectional triode thyristor conducting.By bidirectional triode thyristor (T
2), resistance (R
6) and diode (D
5) what formed is an auxiliary power circuit, (～V
DE) negative half period through diode (D
5) negative pressure after the rectification is through resistance (R
6) be added in bidirectional triode thyristor (T
2) control extremely go up, malleation is added in bidirectional triode thyristor (T
2) a utmost point (A
2') on, bidirectional triode thyristor (T at this moment
1) take as the leading factor logical at the negative half period of power supply.Because bidirectional triode thyristor (T
1) and (T
2) control extremely on the control polarity of voltage that adds opposite, make through (T
1), (T
2) after alternating voltage positive-negative half-cycle waveform basically identical, its symmetrical distortion degree is less than 5%, if there is not this auxiliary power circuit, then through bidirectional triode thyristor (T
1) after the waveform symmetry distortion factor will reach 30-40%, and electric current allows the electric current that flows through very little, otherwise at resistance (R
5) on droop loss will be too big.Use this special supply bidirectional triode thyristor to obtain the method for synchro source just because of this circuit, can make circuit realize big electric current output, realized the microminiaturization of entire circuit again, (～V in the circuit
DE) value size, by voltage-stabiliser tube (D
3) determine.
The course of work of current limliting power-down circuit is: when surpassing the setting electric current, and resistance (R
4) on pressure drop (～V
CD) will be greater than predetermined value, this voltage is through diode (D
2) after the rectification, by resistance (R
2) be added in triode (BG
1) emitter junction be contact (A) and (D) on, make triode (BG
1) conducting, electric capacity (C subsequently
1) by triode (BG
1) discharge, make contact (D) and (B) between voltage (V
DB) reduce to bidirectional triode thyristor (T
1) the control utmost point keep conducting voltage when following, bidirectional triode thyristor (T
1) close, thereby realized the function of overcurrent protection.Set the size of electric current shutoff value, by resistance (R
4) determine.
The operation principle of multifunctional control circuit is: at triode (BG
1) base stage and collector electrode between insert a Sensitive Apparatus, photodiode for example, after photodiode was subjected to rayed, resistance descended, and makes triode (BG
1) base current increase, this electric current is through triode (BG
1) amplify and make (BG
1) conducting, cause bidirectional triode thyristor (T thereupon
1) close, thereby realized that photoelectricity turn-offs controlled function; According to same principle, at triode (BG
1) collector electrode and base stage insert thermistor, at (BG
1) insert adjustable resistance between base stage and emitter; just can realize thermally sensitive overtemperature breaking circuit; the micro device that this circuit is made seals in the A.C. contactor control circuit of motor; and be placed in thermistor on the protected motor windings or on the motor housing, can play the effect of motor overtemperature prote reliably.This overtemperature cutoff device is contactless, and the life-span is long, price is low, and sensitivity, reliability are all higher.The temperature-sensitive elementary volume is little, is convenient to install, and the lead-out wire of this device is few, and wiring is very simple.
As shown in Figure 2, be a kind of multi-functional automatic control circuit schematic diagram that overcurrent protection is arranged that auto-reset function is arranged.It is identical with basic circuit shown in Figure 1, and the pulsed triggering circuit that different is with a transistor avalanche effect principle design has replaced the knob among Fig. 1 (K), to realize automatically reset function.Circuit is to connect like this: input (10) is series diode (D successively
6), resistance (R
7), electric capacity (C
2) after meet bidirectional triode thyristor (T
1) a utmost point (A
2), i.e. contact (C), (T
1) another utmost point (A
1) meet input (10) and diode (D
6) common port; Contact (C) connects resistance (R
8) an end, resistance (R
8) the other end and triode (BG
2) the base stage connection, triode (BG
2) collector electrode connecting resistance (R
7) and electric capacity (C
2) common port, (BG
2) emitter connect resistance (R
9) an end, resistance (R
9) the other end be connected with contact (B).Later circuit promptly from contact (C) with (B) until input (20) and circuit shown in Figure 1 are same, does not repeat herein.
The course of work of this pulsed triggering circuit is: behind the power connection, through diode (D
6), resistance (R
7) to electric capacity (C
2) charging, when charging voltage reaches triode (BG
2) collector electrode-emitter reverse breakdown voltage the time, triode breakdown (being avalanche breakdown) and conducting, at this moment electric capacity (C suddenly
2) on positive voltage by triode (BG
2), resistance (R
9), diode (D
1), resistance (R
1) be added in bidirectional triode thyristor (T
1) control extremely go up electric capacity (C
2) on negative pressure then be added in (T
1) a utmost point (A
2) on, make bidirectional triode thyristor (T
1) conducting, played effect as knob among Fig. 1 (K).After this, the work of control circuit is pressed the described principle of Fig. 1 again, and keeps bidirectional triode thyristor (T
1) conducting.Obviously, this automatic reset circuit can be by adjusting by resistance (R
7), electric capacity (C
2) the charge constant adjustment of the RC circuit the formed frequency that automatically resets.
Operation principle about overcurrent protection and multifunctional control circuit is identical with circuit shown in Figure 1, no longer repeats here.After causing that factor (as overcurrent, overtemperature, illumination etc.) that control circuit turn-offs disappears, because the effect of pulsed triggering circuit, control circuit is conducting again, automatically reset function that Here it is.
Can make the miniature contactless radiator valve of overcurrent protection function with circuit shown in Figure 2.Its solution is at triode (BG
1) collector electrode and base stage between insert suitable thermistor, between base stage and emitter, insert adjustable resistance.Its operation principle is: overcurrent turn-offs multifunctional control circuit because of temperature-sensing element perception overtemperature breaking circuit.After this, pulsed triggering circuit is regularly exported reset pulse, if temperature-sensing element this moment perception overtemperature still, then circuit has only when the temperature-sensing element perception is lower than design temperature triode (BG in the temperature control circuit because of the effect of the temperature control circuit output that can not reset
1) just end, the circuit output that can reset, thereby realized thermostatic control.This device temperature-controlled precision is ± 0.5 ℃, and the controlled power scope is 20-1000W, if make the 500W radiator valve, volume has only matchbox big, and cost is in 7 yuan.
Fig. 3 is with car band charger automatic control equipment schematic diagram, is another embodiment of the present invention.Its scheme is at triode (BG
1) collector electrode, base stage go into photosensitive diode (D indirectly
11)) (D
11) should with the light-emitting diode (D in the voltage sample circuit in the charging circuit
10) the butt joint installation.When battery charge reaches predetermined voltage, light-emitting diode (D
10) luminous, with (D
10) photodiode (D that installs of butt joint
11) be subjected to illumination after, caused the control circuit shutoff, thereby realized being full of the function that automatically shuts down behind the electricity; Unexpected when too high when supply voltage, the battery both end voltage also raises suddenly thereupon, makes control circuit turn-off, and causes battery and underfill.Owing to auto-reset function is arranged in the circuit, treat that supply voltage is normal after, the output that resets immediately again continues to charge, and is charged to predetermined value until cell voltage, circuit is just closed.In the prior art, battery is full of electricity if do not take off battery, still will consume the power supply that part control power supply and transformer waste, and generally accounts for the 20-30% of rated output power, and this device can whole automatically power cutoffs after battery is full of electricity, and power consumption is almost nil.This automatic charger changes the method for designing of routine (the automatic shutdown circuitry design is at the output of charger transformer) into bidirectional triode thyristor and overcurrent automatic shutdown circuitry is designed power input at charger, so just can replace the high big controlled current silicon of valency with the bidirectional triode thyristor device of very cheap less electric current, because low pressure charger output current is than its big 7-12 of power supply input current times, as long as reasonable selection output current limiting resistance and R
4The resistance size, just can be only make the automatic chargers that can carry out output overcurrent and short-circuit protection reliably of 10 peace outputs with the bidirectional triode thyristors of 3 peaces.That this device has is contactless, volume is little, power saving, low, the output low-voltage safety of price, is full of electric energy and cuts off the power supply automatically, can prevent to overcharge and damages storage battery, can better satisfy the requirement with car band usefulness charger.
Accompanying drawing 4: be the microminiaturized contactless multifunctional control circuit schematic diagram that overcurrent protection is arranged that transformer low voltage winding power supply is supplied with.The multi-functional control measure of circuit part is with illustrated in figures 1 and 2 identical, and the power supply of different is overcurrent breaking circuit is to be supplied with by the transformer low voltage winding of institute's adapted main frame.Circuit is to connect like this: as shown in Figure 4, input (20) meets transformer (L
2) an end, (L
2) the other end and indicator light low pressure winding (L
1) an end join (L
1) other end series diode (D
4) an end, diode (D
4) the other end be connected with contact (F), contact (F) connects resistance (R
9) an end, resistance (R
3) the other end be connected with contact (B), light-emitting diode (D successively connects between contact (B) and contact (D)
12), resistance (R
10); Contact (D) and coil (L
1) and (L
2) common port connects, contact (D) and (F) indirect electric capacity (C
1); Remaining circuit is promptly from input (10) to contact (D) with the multi-functional control measure part (B), and is identical with circuit illustrated in figures 1 and 2, no longer narration.The course of work of this circuit is: arteries and veins fills circuits for triggering and makes the bidirectional triode thyristor conducting behind the power connection, and the conducting electric current is at the transformer coil (L that flows through
2) time, at coil (L
1) in induce voltage, this voltage is through diode (D
4) after the rectification to electric capacity (C
1) charging.Electric capacity (C
1) on positive voltage through resistance (R
6), diode (D
1) and resistance (R
1) be added in bidirectional triode thyristor (T
1) control and extremely go up electric capacity (C
1) on negative pressure through resistance (R
4) be added in bidirectional triode thyristor (T
1) a utmost point (A
2) on, kept bidirectional triode thyristor (T
1) conducting.The overcurrent of circuit turn-offs identical with circuit illustrated in figures 1 and 2 with the operation principle of multifunctional control circuit, does not repeat.
Accompanying drawing 4 also is an another embodiment of the present invention.It is the overcurrent time-delay automatic safety device schematic diagram that is used for electronic mousetrap.
Circuit as shown in Figure 4 is at the triode (BG of overcurrent breaking circuit
1) base stage, emitter between add a suitable electrochemical capacitor (C
3), just constituted electronic mousetrap overcurrent time-delay automatic protection circuit, this circuit is inserted the electronic mousetrap power input, just make electronic mousetrap have overcurrent delay protection function.Because electric capacity (C
3) adding, make when overcurrent occurring in the circuit when the mouse body gets an electric shock, the overcurrent breaking circuit does not turn-off immediately, just cuts off the power supply and will postpone some times, during this period of time by resistance (R
2) and electric capacity (C
3) the RC delay circuit formed determines, this just can make the mouse electric shock that (drenched by water as the mouse body) under the extremely low situation of volume resistance, also be enough to mouse is hit unconsciously.Because mouse is after electric shock, volume resistance descends rapidly, if untimely power cutoff, then circuit will burn out elements such as transformer because of overload; But outage back mouse does not die, and is only hit unconsciously, and after some very short times, mouse will be waken up and be run away, and these existing just electronic mousetraps need improvements.This circuit is owing to there is auto-reset function, and the output that can periodically reset by the frequency of setting continue the electric shock mouse, thereby mouse can't run away.Because the output frequency that resets is low, though all serious excess load of institute's load of meeting when resetting output at every turn, circuit is very fast to be disconnected again, thereby has both satisfied the reliability that kills mouse, and has protected not reason overcurrent and burning of mousetrap main frame again.
Although the electronic mousetrap of existing auto-reset function in the known technology; but because they use another set of independently transformer, relay etc.; cost is higher; that the electronic mousetrap made from this circuit has is contactless, cost is low, time-delay, overcurrent outage and the design that automatically resets are all very dexterous; export exactly dead short, also can the reliably protecting main frame.
Claims (10)
1, a kind of multi-functional automatic control circuit particularly has the microminiaturized contactless multifunctional control circuit of overcurrent protection, it is characterized in that with bidirectional triode thyristor (T
1) be switch element, and by bidirectional triode thyristor (T
1), triode (BG
1), diode (D
2), resistance (R
2), (R
4) form the overcurrent breaking circuit, their method of attachment is: bidirectional triode thyristor (T
1) a plate (A
2) be contact (C) and triode (BG
1) emitter be the indirect resistance (R of contact (D)
4), contact (C) and triode (BG
1) connect diode (D successively between base stage
2) and resistance (R
2), triode (BG
1) collector electrode be connected with contact (B), at triode (BG
1) emitter junction be between contact (A), (D) or collector junction is suitable electric capacity or the various senser of adding respectively between contact (A), (B), circuit has just had corresponding controlled function automatically, the power supply of above circuit is by resistance (R
5), (R
6), (R
3), diode (D
5), (D
4), (D
3), electric capacity (C
1) and bidirectional triode thyristor (T
2) constitute, their method of attachment is: contact (D) and (E) between and be connected to resistance (R
5) and bidirectional triode thyristor (T
2) two utmost points, bidirectional triode thyristor (T
2) the control utmost point and contact (E) between be connected to resistance (R successively
5) and diode (D
5), contact (E) and (F) indirect diode (D
4), contact (D) and (F) indirect electric capacity (C
1), contact (B) and (F) between be connected to resistance (R
3), contact (D) and (B) between be connected to voltage-stabiliser tube (D
3), at bidirectional triode thyristor (T
1) the control utmost point and contact (B) between be connected resistance (R successively
1) and diode (D
1).
2, multi-functional automatic control circuit as claimed in claim 1 is characterized in that at bidirectional triode thyristor (T
1) two utmost point (A
1) and (A
2) between be connected on the other hand movable contact and send out knob (K).
3, multi-functional automatic control circuit as claimed in claim 1 is characterized in that at bidirectional triode thyristor (T
1) on be connected to a pulsed triggering circuit, realizing automatically reset function, circuit is to connect like this: contact (C) series capacitance (C
2) back and transistor (BG
2) the collector electrode connection, (BG
2) a resistance (R connects between collector electrode and input (10)
7) and a diode (D
6), (BG
2) connecting resistance (R between emitter and the contact (B)
9), (BG
2) base stage and contact (C) indirect resistance (R
8).
4, as claim 2 or 3 described multi-functional automatic control circuits, it is characterized in that being connected to an adjustable resistance at contact (A) with (D), contact (A) and (B) between be connected to a thermistor.
5,, it is characterized in that being connected to a light-sensitive device or magnetosensitive device or wet sensitive device at contact (A) with (B) as claim 2 or 3 described multi-functional automatic control circuits.
6, a kind of multifunctional control circuit particularly has the microminiaturized contactless multifunctional control circuit of overcurrent protection, it is characterized in that, with bidirectional triode thyristor (T
1) be switch element, and by double silicon control (T
1), triode (BG
1), diode (D
2) and resistance (R
2), (R
4) form the overcurrent breaking circuit, their method of attachment is: bidirectional triode thyristor (T
1) a utmost point (A
2) be contact (C) and triode (BG
1) emitter be contact (D) indirect resistance (R
4), contact (C) and triode (BG
1) connect diode (D successively between base stage
2) and resistance (R
2), triode (BG
1) collector electrode be connected with contact (B), at triode (BG
1) emitter junction be between contact (A), (D) or collector junction is suitable electric capacity or the various senser of adding respectively between contact (A), (B), circuit has just had corresponding controlled function automatically, and the power supply of above circuit is the low pressure winding (L by the transformer of institute's adapted main frame (BT)
1), diode (D
4), electric capacity (C
1), resistance (R
3) form, their method of attachment is: be serially connected with coil (L successively between contact (D) and contact (B)
1), diode (D
4) and resistance (R
3), resistance (R
3) and diode (D
4) contact be contact (F), contact (F) and (D) between be connected to electric capacity (C
1), between the control utmost point of bidirectional triode thyristor and contact (B), be serially connected with resistance (R successively
1) and diode (D
1).
7, multi-functional automatic control circuit as claimed in claim 6 is characterized in that at bidirectional triode thyristor (T
1) two utmost point (A
1) and (A
2) between be connected on the other hand movable contact and send out knob (K).
8, multi-functional automatic control circuit as claimed in claim 6 is characterized in that at bidirectional triode thyristor (T
1) on be connected to a pulsed triggering circuit, realizing automatically reset function, circuit is to connect like this: contact (C) series capacitance (C
2) back and transistor (BG
2) the collector electrode connection, (BG
2) seal in a resistance (R between collector electrode and input (10)
7) and a diode (D
6), (BG
2) connecting resistance (R between emitter and the contact (B)
9), (BG
2) base stage and contact (C) indirect resistance (R
8).
9,, it is characterized in that being connected to an electrochemical capacitor at contact (A) with (D) as claim 7 or 8 described multi-functional automatic control circuits.
10,, it is characterized in that being connected to a light-sensitive device or magnetosensitive device or wet sensitive device at contact (A) with (B) as claim 7 or 8 described multi-functional automatic control circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86102566 CN86102566A (en) | 1986-04-10 | 1986-04-10 | The multifunctional control circuit that overcurrent protection is arranged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86102566 CN86102566A (en) | 1986-04-10 | 1986-04-10 | The multifunctional control circuit that overcurrent protection is arranged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86102566A true CN86102566A (en) | 1987-01-24 |
Family
ID=4801782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86102566 Pending CN86102566A (en) | 1986-04-10 | 1986-04-10 | The multifunctional control circuit that overcurrent protection is arranged |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86102566A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000002314A1 (en) * | 1998-07-02 | 2000-01-13 | Baoyun Yang | A contactless intellectual switch |
| CN1063897C (en) * | 1992-07-21 | 2001-03-28 | 先进显微设备股份有限公司 | Signal averager |
| CN104836374A (en) * | 2015-05-15 | 2015-08-12 | 成都中冶节能环保工程有限公司 | Alarm type coke oven waste heat recovery power generation system based on power supply adjustment circuit |
-
1986
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063897C (en) * | 1992-07-21 | 2001-03-28 | 先进显微设备股份有限公司 | Signal averager |
| WO2000002314A1 (en) * | 1998-07-02 | 2000-01-13 | Baoyun Yang | A contactless intellectual switch |
| CN104836374A (en) * | 2015-05-15 | 2015-08-12 | 成都中冶节能环保工程有限公司 | Alarm type coke oven waste heat recovery power generation system based on power supply adjustment circuit |
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