CN203788038U - Alternating current and direct current lightning protection power source - Google Patents

Alternating current and direct current lightning protection power source Download PDF

Info

Publication number
CN203788038U
CN203788038U CN201420057941.4U CN201420057941U CN203788038U CN 203788038 U CN203788038 U CN 203788038U CN 201420057941 U CN201420057941 U CN 201420057941U CN 203788038 U CN203788038 U CN 203788038U
Authority
CN
China
Prior art keywords
voltage
triode
power source
connects
diode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420057941.4U
Other languages
Chinese (zh)
Inventor
宁永敭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Ninglai Science and Trade Co Ltd
Original Assignee
Chongqing Ninglai Science and Trade Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Ninglai Science and Trade Co Ltd filed Critical Chongqing Ninglai Science and Trade Co Ltd
Priority to CN201420057941.4U priority Critical patent/CN203788038U/en
Application granted granted Critical
Publication of CN203788038U publication Critical patent/CN203788038U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

An alternating current and direct current lightning protection power source is disclosed and belongs to the electronic technology field. The alternating current and direct current lightning protection power source is a novel power source, wherein the novel power source is matched with an electronic device and enables the electronic device to work normally in all kinds of conditions. The alternating current and direct current lightning protection power source consists of an alternating current voltage stabilization unit, a backup protection unit, a direct current unit and a voltage balance diode, wherein a voltage stabilization adjusting triode in the alternating current voltage stabilization unit is a high inverse voltage and large power triode which can withstand voltage as high as several hundred Volts, and floating charge voltage needed by a direct current unit can be conveniently obtained when voltage is adjusted by a voltage adjusting and voltage stabilizing tube and a fine adjustment resistor that are arranged at a base electrode of the high inverse voltage and large power triode. When overvoltage is caused by lightning strikes or an over current is caused by faults of the matched device, the backup protection unit is immediately started, and the power source and the matched device are protected at the same time; when the faults disappear, the backup protection unit immediately recovers to a backup state; standard voltage needed by the device can be realized by the voltage balance diode connected with the alternating current voltage stabilization unit when an alternating current is available. After the power source is applied, the device is enabled to work normally in different environment, and the power source is worth developing and using.

Description

Alternating current-direct current lightning protection power source
Technical field
Belong to electronic technology field.
Background technology
Power supply is the basis of electronic device works stable performance, and the electronic equipment difference being equipped with is also different to the requirement of power supply, but there is common feature, the one, supply voltage will be stablized, and shows different locations, civil power height is different, and now supply voltage is stable very important, the 2nd, over-current over-voltage protection is very important, if the preparation that arranges has been given birth to short circuit or thundery sky and has been subject to thunderbolt and produces and gush pressure, cause voltage to raise suddenly, electric current surges, now not only arrange standby can damage, power supply is also fragile, and present integrated regulator, as the performance taking 78 series as representative, its inherency of these integrated circuits exists the weakness that input voltage is low, this weakness, and the most easily cause damage, thereby anti-overflow overvoltage is very crucial, the 3rd, direct voltage is very useful, especially for antitheft series products, if adopt the form of power-off because of thundery sky, or because a variety of causes, and have a power failure, if there is no direct current, antitheft series products performs practically no function, the consequence producing is very serious, for fear of the generation of this situation, so should add direct voltage, common direct voltage is all to use storage battery, for antitheft door series products, storage battery can not be arranged on to outside, after a period of time, again storage battery is taken out to charging, obviously this is unpractical, thereby how storage battery is carried out to the floating charge of science, it is urgent problem, therefore be very important to the lifting of power supply.
Summary of the invention
For electronic equipment can normally be worked in all cases, spy does further to promote to power supply, designs a kind of novel power supply and electronic equipment supporting, reaches following characteristics: the one, adapt to civil power scope wide, and reliability is strong; The 2nd, lightning protection effect is good, and overvoltage capabilities is strong, and institute's distribution subset can normally be worked in all cases.
The measure that the present invention adopts is:
1, alternating current-direct current lightning protection power source is made up of jointly AC voltage-stabilizing unit, backup protection unit, direct current unit and balance of voltage diode.
Wherein: AC voltage-stabilizing unit is the collector electrode that the output after rectification connects voltage stabilizing adjustment triode, the base resistance that triode is adjusted in voltage stabilizing is connected to rectification output in termination on one side, another side termination connects the base stage of voltage stabilizing adjustment triode, and the base stage that triode is adjusted in voltage stabilizing connects a voltage adjustment voltage-stabiliser tube to ground wire.
Backup protection unit is made up of anti-thunder tube, overvoltage crowbar and current foldback circuit.
One end of anti-thunder tube connects rectification output, and the other end connects ground wire.
Current foldback circuit is: overcurrent protection resistance one end connects the emitter of voltage stabilizing adjustment triode; the overcurrent protection resistance other end connects floating charge contact; the positive pole of overcurrent protection diode is connected to the base stage of voltage stabilizing adjustment triode, and the negative pole of overvoltage protection diode is connected on floating charge contact.
Overvoltage crowbar is: protect the anodic bonding voltage stabilizing in controlled osmanthus to adjust the base stage of triode; protection silicon controlled minus earth line; the protection silicon controlled control utmost point connects two-way; one tunnel is to connect over the ground a sensitivity adjustment resistance, and another road is to connect after a door voltage-stabiliser tube to floating charge contact.
Direct current unit is: the one end that connects floating charge resistance on floating charge contact, the other end of floating charge resistance connects the emitter of storage battery and discharge diode, the base stage of discharge diode connects two-way, one tunnel is to connect base stage controlling resistance to ground, another road connects the negative pole of rectification control diode, and the positive pole of rectification control diode connects rectification output.
The positive pole of balance of voltage diode connects floating charge contact, and the other end connects combined-voltage output.
2, the voltage stabilizing value that the voltage stabilizing value of door voltage-stabiliser tube is adjusted voltage-stabiliser tube than voltage is high.
3, door voltage-stabiliser tube can be the form of two diodes of door voltage-stabiliser tube series connection.
4, voltage adjustment voltage-stabiliser tube can be the form that voltage voltage-stabiliser tube is connected with resistance, diode.
Above measure is explained as follows:
1, the explanation to AC voltage-stabilizing unit:
Alternating current is after over commutation, enter into voltage stabilizing and adjust triode (Fig. 1 105), and voltage stabilizing adjustment triode has adopted the form of penetrating with output, it is NPN triode that triode is adjusted in voltage stabilizing, its base stage has voltage to adjust the existence of voltage-stabiliser tube (104 in Fig. 1), after once base voltage is determined, the voltage of emitter will be a fixed number, and this fixed number is only than the low 0.7V of base voltage, thereby voltage stabilizing adjustment triode can be voltage stabilizing value, can meet the needed voltage of equipment, the effect that the base resistance (103 in Fig. 1) of triode is adjusted in voltage stabilizing is, if resistance is little, voltage stabilizing adjust triode with bearing power can be very large, if resistance is large, voltage stabilizing adjust triode with bearing power relatively diminish, this can be according to arranged standby requirements set.
2, in backup protection unit, contain overvoltage protection and overcurrent protection; there is good anti-lightning effect; exactly because there is backup protection unit; thereby in the time of thundery sky, deenergization is avoided electronic equipment to be struck by lightning and damaged again, electronic equipment still can normally be worked in the time of thundery sky; this is to security personnel's series products; have a very big significance, there will not be security personnel's blank, to being described as follows of backup protection unit:
(1) reason of generation overvoltage protection: the pressure of gushing that produces moment when there being thunderbolt, the collector electrode that makes voltage stabilizing adjust triode rises to suddenly very high, the emitter voltage that triode is adjusted in now voltage stabilizing raises, the emitter voltage of adjusting triode when voltage stabilizing has exceeded after door voltage-stabiliser tube (108 in Fig. 1), make to protect controllable silicon (109 in Fig. 1) conducting rapidly, and protection controllable silicon has very strong positive feedback, immediately voltage stabilizing is adjusted the base stage short circuit of triode, form the output voltage sealing of voltage stabilizing being adjusted to triode, become the fast tripping protection of lightning protection overvoltage, exist without high pressure and export when the emitter of voltage stabilizing adjustment triode, the emitter voltage that is voltage stabilizing adjustment triode can not exceed door voltage-stabiliser tube, can not trigger protection controllable silicon, one of thereby the reason that can automatically recover of protection controllable silicon.
Protection controllable silicon has connected a sensitivity adjustment resistance (110 in Fig. 1) over the ground to controlling the utmost point; the effect of this resistance is shunting; silicon controlled control electrode current is assigned to ground; by silicon controlled sensitivity, controllable silicon is wanted self-sustaining, and controlling the utmost point needs certain electric current; adjust this resistance; when the emitter voltage that can be voltage stabilizing adjustment triode in thunderbolt disappearance can not exceed door voltage-stabiliser tube, allow the required self-sustaining electric current of protection controllable silicon rapidly disappear, make to protect controllable silicon to recover rapidly.
As used measure 2, the form of door voltage-stabiliser tube series diode, can adjust the voltage that controllable silicon triggers easily.
When thunderbolt disappears, after protection controllable silicon recovers, voltage stabilizing is adjusted the emitter voltage of triode and is adjusted rapidly, becomes normal voltage value.
Protection controllable silicon is in the time of overvoltage not because the voltage stabilizing value that the voltage stabilizing value of door voltage-stabiliser tube is adjusted voltage-stabiliser tube than voltage is high, so protection controllable silicon in the ordinary course of things all in Status of Backups, thereby can not damage, thereby strengthened reliability.
It is high back-pressure large power triode that triode is adjusted in voltage stabilizing, and its withstand voltage reaches several hectovolts, and anti-thunder tube used (102 in Fig. 1) withstand voltage is tens volts; thereby in the time of thunderbolt; anti-thunder tube can preferentially disconnect, and forces rectification output no-voltage, thereby has protected again power supply itself.
(2) form the reason of overcurrent protection: when output current excessive; the pressure drop of overcurrent protection resistance (106 in Fig. 1) increases; exceed after the value of overvoltage protection diode; overvoltage protection diode current flow; flowing into voltage stabilizing presses the base current of adjusting triode to reduce; load overcurrent is super many, and the base current reducing is more, automatically forms the protection of voltage stabilizing being adjusted to triode.
3, the reason that can normally work in different civil powers location: the location that civil power is too low, because it is high back-pressure large power triode that triode is adjusted in voltage stabilizing, itself can not produce parasitic pressure drop, and that the voltage of rectification output can design is higher, can do some make up in the too low location of civil power.Too high when civil power, be high back-pressure large power triode because triode is adjusted in voltage stabilizing, rectifier output voltage is adjusted the withstand voltage of triode well below voltage stabilizing, therefore also can normally work in the high location of civil power.
4, the explanation of direct current unit: storage battery has a very big significance in a lot of electronic equipments, particularly ensures public security in series products, if because accidental cause has a power failure, cause serious consequence, is extremely unwilling to see, therefore direct current is pressed with very large meaning.But a lot of power supplys are because can not solve the high and contradiction that discharge voltage is low of float charge voltage, having is exactly the standard float charge voltage 13.8V that a lot of power supplys all can not adjust storage battery again, so direct current just becomes blank, and direct current unit in this circuit has not only solved the problem of the standard float charge voltage of storage battery, solve especially the high and contradiction that discharge voltage is low of float charge voltage.
The first, the reason of energy standard floating charge:
The voltage adjustment voltage-stabiliser tube (104 in Fig. 1) that transistor base is adjusted in voltage stabilizing is a definite value, and the voltage accurate adjustment resistance (118 in Fig. 1) that it is gone here and there can carry out voltage adjustment within 0.7V, if with being that voltage shown in Fig. 2 is adjusted the form that voltage-stabiliser tube (104 in Fig. 1) is connected with voltage accurate adjustment resistance (118 in Fig. 1), voltage coarse adjustment diode (120 in Fig. 2) described in measure 4, more easily adjust standard float charge voltage 13.8V.
The second, solution float charge voltage is high, and the low principle of discharge voltage:
(1), discharge diode (112 in Fig. 1) is also high back-pressure large power triode, what select is PNP pipe, the characteristic of PNP pipe is, when base voltage low, the conducting of PNP pipe, one large electric current flows to collector electrode from the emitter of PNP pipe, collector voltage raises, therefore when rectification is exported when no-voltage, and discharge diode conducting, be that storage battery starts electric discharge, why select PNP pipe, because pressure drop is very little, negligible when its conducting, so can not produce pressure drop in without alternating current, the collector voltage of discharge diode is equal to battery tension.
(2) and in the time having alternating voltage, the base stage of discharge diode directly inputted voltage by rectification control diode (114 in Fig. 1), because the characteristic of PNP triode, base stage has voltage to exist, therefore discharge diode can conducting, so discharge diode is at ordinary times in cut-off state.
5, balance diode is significant in this circuit, balance diode is that several diodes are in series, its Main Function is the operating voltage 12V that the float charge voltage 13.8V that is similar to storage battery that voltage stabilizing is adjusted to transistor emitter output is down to equipment, so just can make to arrange standby be standard 12V voltage in the time having alternating current, and in the time only having direct current, be also 12V voltage, make the standby service behaviour of arrange more stable, and diode is definite value 0.7V, debugging is convenient, is easier to production in batches.
After the invention process, there is following significant advantage:
1, normally work at thundery sky energy guarantee equipment; the one, because this power supply has overvoltage protection, protection controllable silicon positive feedback ability is strong, after conducting, voltage stabilizing is adjusted to the base voltage clamper of triode to 0V; and when without overvoltage; protection controllable silicon, in Status of Backups, can not damage, and the 3rd, because the withstand voltage of anti-thunder tube is adjusted the withstand voltage of triode well below voltage stabilizing; in the time being struck by lightning; anti-thunder tube preferentially disconnects, and has more fully protected power supply, has more protected institute to arrange standby.
2, no matter adapt to widely, be location or the low location of civil power that civil power is high, and institute arranges standby can normally work.
3, there is the ability of overcurrent protection; if the preparation that arranges has been given birth to fault; electric current is increased; the conducting immediately of overcurrent protection diode forms the base bleeder current of voltage stabilizing being adjusted to triode; protect power supply can not damage; fault disappears, and overcurrent protection diode recovers immediately voluntarily, can not impact voltage stabilizing.
4, realized alternating current-direct current and shared, in the time having alternating current, storage battery is in floating charge state, and institute arranges standby normal work, during without alternating current, and battery discharging, institute arranges standbyly also normally works, and mutually can not affect.
Brief description of the drawings
Fig. 1 is alternating current-direct current lightning protection power source basic circuit diagram.
In figure: 101, rectification output; 102, anti-thunder tube; 103, the base resistance of pipe is adjusted in voltage stabilizing; 104, voltage is adjusted voltage-stabiliser tube; 105, triode is adjusted in voltage stabilizing; 106, overcurrent protection resistance; 107, overcurrent protection diode; 108, door voltage-stabiliser tube; 109, protection controllable silicon; 110, protection controllable silicon sensitivity adjustment resistance; 111, floating charge resistance; 112, discharge diode; 113, storage battery; 114, rectification control diode; 115, discharge diode base stage controlling resistance; 116, balance of voltage diode; 117, combined-voltage output; 118, voltage is adjusted the voltage accurate adjustment resistance that voltage-stabiliser tube is gone here and there.
Fig. 2 is that to adjust voltage-stabiliser tube be the voltage voltage-stabiliser tube form of connecting with resistance, diode to voltage with door voltage-stabiliser tube is the connect circuit diagram of form of two diodes of door voltage-stabiliser tube.
In figure: 101, rectification output; 102, anti-thunder tube; 103, the base resistance of pipe is adjusted in voltage stabilizing; 104, voltage is adjusted voltage-stabiliser tube; 105, triode is adjusted in voltage stabilizing; 106, overcurrent protection resistance; 107, overcurrent protection diode; 108, door voltage-stabiliser tube; 109, protection controllable silicon; 110, protection controllable silicon sensitivity adjustment resistance; 111, floating charge resistance; 112, discharge diode; 113, storage battery; 114, rectification control diode; 115, discharge diode base stage controlling resistance; 116, balance of voltage diode; 117, combined-voltage output; 118, voltage is adjusted the voltage accurate adjustment resistance that voltage-stabiliser tube is gone here and there; 119, the diode of door voltage-stabiliser tube series connection; 120, voltage is adjusted the voltage coarse adjustment diode that voltage-stabiliser tube is gone here and there.
Embodiment
Fig. 1 and Fig. 2 have described a kind of mode of concrete enforcement jointly, and its concrete operations are as follows:
1, press the selected triode of Fig. 1 or Fig. 2, anti-thunder tube, diode and resistance, wherein voltage stabilizing adjusts triode to select high back-pressure large power triode, and NPN pipe, as 3DD15; Discharge diode is selected high back-pressure large power triode, and PNP pipe, as TIP42C.Anti-thunder tube puncture voltage parameter should be selected lower than triode back-pressure value, and controllable silicon selects one-way SCR class.
2, press the line map welding of Fig. 1 or Fig. 2.
3, adjust power supply output valve: the adjustment of triode output valve is adjusted in voltage stabilizing, voltage is adjusted voltage-stabiliser tube as a definite value, voltage is adjusted the voltage adjustment that the voltage-stabiliser tube voltage accurate adjustment resistance of going here and there can be in 0.7V, if necessary, can also describe by Fig. 2, then the diode of connecting is as coarse adjustment; Its rule be voltage-stabiliser tube value more high output voltage is higher, resistance is larger, output voltage is higher, otherwise lower, the coarse adjustment diode of connecting is that the number of diode is more, voltage is higher, otherwise lower.
4, adjust overvoltage protection parameter.
(1), with the oscillographic source of stable pressure output that is connected on, by the direct voltages click rectifier terminal of 100 volts, oscilloscope display output reduces to zero substantially by normal voltage, otherwise should debug the voltage stabilizing value of door voltage-stabiliser tube, or adjusts the number of the diode of door voltage-stabiliser tube series connection.
(2), the direct voltage of 100 volts of breaking, oscilloscope display output end voltage is normal, just adjusts the resistance of protection controllable silicon sensitivity adjustment resistance if undesired.
5, the number of overcurrent protection diode is more, and the larger overcurrent protection diode current flow that just can make of required overcurrent is very few, can make overcurrent protection diode at ordinary times in conducting state, so generally between two or four, this circuit is set as two.

Claims (4)

1. alternating current-direct current lightning protection power source, is characterized in that: be jointly made up of AC voltage-stabilizing unit, backup protection unit, direct current unit and balance of voltage diode;
Wherein: AC voltage-stabilizing unit is the collector electrode that the output after rectification connects voltage stabilizing adjustment triode, the base resistance that triode is adjusted in voltage stabilizing is connected to rectification output in termination on one side, another side termination connects the base stage of voltage stabilizing adjustment triode, and the base stage that triode is adjusted in voltage stabilizing connects a voltage adjustment voltage-stabiliser tube to ground wire;
Backup protection unit is made up of anti-thunder tube, overvoltage crowbar and current foldback circuit;
One end of anti-thunder tube connects rectification output, and the other end connects ground wire;
Current foldback circuit is: overcurrent protection resistance one end connects the emitter of voltage stabilizing adjustment triode, the overcurrent protection resistance other end connects floating charge contact, the positive pole of overcurrent protection diode is connected to the base stage of voltage stabilizing adjustment triode, and the negative pole of overvoltage protection diode is connected on floating charge contact;
Overvoltage crowbar is: protect the anodic bonding voltage stabilizing in controlled osmanthus to adjust the base stage of triode, protection silicon controlled minus earth line, the protection silicon controlled control utmost point connects two-way, one tunnel is to connect over the ground a sensitivity adjustment resistance, and another road is to connect after a door voltage-stabiliser tube to floating charge contact;
Direct current unit is: the one end that connects floating charge resistance on floating charge contact, the other end of floating charge resistance connects the emitter of storage battery and discharge diode, the base stage of discharge diode connects two-way, one tunnel is to connect base stage controlling resistance to ground, another road connects the negative pole of rectification control diode, and the positive pole of rectification control diode connects rectification output;
The positive pole of balance of voltage diode connects floating charge contact, and the other end connects combined-voltage output.
2. alternating current-direct current lightning protection power source according to claim 1, is characterized in that: the voltage stabilizing value that the voltage stabilizing value of door voltage-stabiliser tube is adjusted voltage-stabiliser tube than voltage is high.
3. alternating current-direct current lightning protection power source according to claim 1, is characterized in that: door voltage-stabiliser tube can be the form of two diodes of door voltage-stabiliser tube series connection.
4. alternating current-direct current lightning protection power source according to claim 1, is characterized in that: it can be the form that voltage voltage-stabiliser tube is connected with resistance, diode that voltage is adjusted voltage-stabiliser tube.
CN201420057941.4U 2014-02-06 2014-02-06 Alternating current and direct current lightning protection power source Expired - Fee Related CN203788038U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420057941.4U CN203788038U (en) 2014-02-06 2014-02-06 Alternating current and direct current lightning protection power source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420057941.4U CN203788038U (en) 2014-02-06 2014-02-06 Alternating current and direct current lightning protection power source

Publications (1)

Publication Number Publication Date
CN203788038U true CN203788038U (en) 2014-08-20

Family

ID=51324190

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420057941.4U Expired - Fee Related CN203788038U (en) 2014-02-06 2014-02-06 Alternating current and direct current lightning protection power source

Country Status (1)

Country Link
CN (1) CN203788038U (en)

Similar Documents

Publication Publication Date Title
CN102315632A (en) Driving circuit for inhibiting over current of IGBT (Insulated Gate Bipolar Transistor)
CN105633905A (en) Overvoltage and under-voltage protection circuit
CN106207959A (en) Electromagnetism voltage-stabilizing energy-saving device over-voltage over-current protection device
CN202333786U (en) Drive circuit for restraining IGBT (Insulated Gate Bipolar Transistor) overcurrent
CN203851027U (en) Alternating current and direct current lightning protection power source
CN203788038U (en) Alternating current and direct current lightning protection power source
CN203415975U (en) Two-way surge protection circuit
CN205960779U (en) P type monitoring formula switching power
CN203850826U (en) Multifunctional voltage stabilizing circuit
CN204833041U (en) Three -terminal steady voltage source can be monitored to wide region
CN203851054U (en) Simplified quick-break type protection power source
CN203850907U (en) Floating charge power source integrating monitoring and voltage stabilization into an integral body
CN203850886U (en) Hybrid floating charge voltage-stabilizing source
CN103972859A (en) Overvoltage protecting circuit
CN108039695B (en) Overvoltage crowbar
CN203166468U (en) Compact output end type protective power supply
CN204833042U (en) Three -terminal steady voltage source that applicable type can be monitored
CN203850827U (en) Dual-purpose composite voltage stabilizer
CN204835504U (en) Monitoring type quick -break protection's three -terminal constant voltage power supply
CN203911752U (en) Protective display power source used for rectification terminal
CN105098705A (en) Electric leakage protector
CN203193528U (en) Open-type protective voltage-stabilized power supply
CN203193495U (en) Double-end protection type voltage stabilization power source
CN203850885U (en) Floating charge current source with display
CN203883793U (en) Power chip with electrostatic discharge protection function

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140820

Termination date: 20150206

EXPY Termination of patent right or utility model