CN204833033U - Monitoring type constant voltage power supply - Google Patents
Monitoring type constant voltage power supply Download PDFInfo
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- CN204833033U CN204833033U CN201520589695.1U CN201520589695U CN204833033U CN 204833033 U CN204833033 U CN 204833033U CN 201520589695 U CN201520589695 U CN 201520589695U CN 204833033 U CN204833033 U CN 204833033U
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Abstract
Monitoring type constant voltage power supply belongs to the safety technique field, comprises jointly protection start -up unit, monitor effect unit, three -terminal steady voltage unit. Be one kind can the steady voltage, again can the floating charge, the constant voltage power supply that can also monitor, set and break down fully when power itself or institute, messenger's electric current changes, the protection starts the unit and starts immediately, make warning of monitor effect unit formation sound and light warning, take the initiative immediately and indicate, in order to remind people to notice maintaining, can nimble adjust its output valve in the three -terminal steady voltage unit, this electrical apparatus very important to there being the battery, because a lot of powers all can not satisfying criteria floating charge voltage, and this power can be adjusted very conveniently, formation can the steady voltage, can realize the floating charge again, the constant voltage power supply that can also monitor, if the institute sets fully or the trouble has appeared in power itself, warn immediately, initiatively remind the user, if the trouble disappears, the warning also disappears thereupon, and tracking nature is strong.
Description
Technical field
Belong to safety technique field.
Background technology
Outstanding electrical equipment all needs outstanding power supply, be well-known, but in the use of electrical equipment, a lot of fortuitous event all can damage electrical equipment, the power supply that the most flimsy electrical equipment is equipped with, as made power output end electric current increase when equipment produces fault, be and for example that power supply itself breaks down, generation current is excessive, but these fortuitous events can directly reflect in the supply, but in just current stabilized voltage supply, but do not have a kind of power supply to be can learn the power supply gone wrong in time.
When device fails or power supply itself go wrong, generation current is excessive, now can notify user in time, user can be safeguarded in time, this is very important, because it can reduce the spoilage of equipment and power supply, this is not only and promotes the one of power supply, for the electrical equipment that some maintenace points are few, this is vital, because maintenance is inconvenient, use again or because needs are timely, if the fault of there occurs and fail to learn in time, be just eager to look for people to keep in repair when using, this obviously brings great inconvenience to user.
Therefore, if there is a kind of power supply, it can voltage stabilizing, can monitor again, when producing overcurrent-overvoltage, can reflect on one's own initiative, preventing the generation of the situations such as overcurrent-overvoltage, and this power supply is subject to everybody favor surely.
But three end integrated regulated power supply kinds are in the market many, use extremely wide, because its external piece is few, cost is low, easy to use, so often by people are used, but it also exists many problems:
1, its input terminal voltage is low, is generally only 30V, once overvoltage, just can damage, so the scarce capacity of its anti-overflow overvoltage.
If 2 produce the situations such as overcurrent, can not reflect on one's own initiative.Device fails is joined by institute, can not initiatively reflect, if security personnel's product, because security personnel's product only just starts when there being deadly condition to occur, and managerial personnel can not simulate deadly condition at any time, so, if power supply creates fault, and then have impact on equipment, can not learn in time, if power supply itself produces fault, can not learn in time, thus there will be security personnel's leak, situation is very serious.
3, i.e., enable voltage stabilizing, can not adjust the standard voltage value required for floating charge easily, this is because, existing three-terminal voltage-stabilizing circuit, its output valve is 6V, 12V etc., but the normal voltage of floating charge is not integer, but 6.8V or 13.6V etc., how to adjust, be also a problem.
Solve the above problems, reaching can voltage stabilizing, can monitor input end again, when producing overcurrent-overvoltage, can reflect on one's own initiative, prevent the object of the power supply of the situations such as thunderbolt overvoltage, systematic research must be carried out, need the support of multiple technologies, need the mode of thinking of innovation, because it should consider energy voltage stabilizing, floating charge standard value can be adjusted easily again, also will when there being overcurrent-overvoltage, can point out in time, so, it must break through the mode of traditional mu balanced circuit, find new direction, could realize can the power supply that can monitor again of voltage stabilizing.
Summary of the invention
Fundamental purpose of the present invention is, proposes new scheme, and design one can voltage stabilizing, again can floating charge, and the stabilized voltage supply that can also monitor, reaches following object: one is can when overcurrent-overvoltage, and initiatively prompting, is convenient to people and learns in time, safeguard in time.Two is to have stable output voltage.Three is to realize science floating charge.So it is a kind of stabilized voltage supply, it is again a kind of monitoring observation device.
The measure that the present invention adopts:
1, monitor-type stabilized voltage supply forms jointly by protecting start unit, monitoring effect unit, three-terminal voltage-stabilizing unit.
Wherein: protection start unit protects triode by PNP, sample resistance, pressure drop diode, isolating diode forms: the output of rectification connects two-way, one tunnel connects one end of sample resistance, another road connects the emitter that PNP protects triode, the other end of sample resistance connects two-way, one tunnel connects the base stage that PNP protects triode, another road connects pressure drop diode in three-terminal voltage-stabilizing unit, the input end of three end integrated stable voltage circuits, isolating diode is connected on the input end of three end integrated stable voltage circuits and PNP protects between the collector of triode, namely the collector of PNP triode is the output of protection start unit.
Monitoring effect unit is made up of sound warning piece, protective resistance and luminotron: a termination of protective resistance protects the output of start unit, and the other end sending and receiving light pipe of protective resistance is to ground wire, and sound warning piece is connected between the output of ground wire and protection start unit.
Three-terminal voltage-stabilizing unit three end integrated stable voltage circuit, upper offset piezoresistance, lower offset piezoresistance form: under the ground connection termination of three end integrated stable voltage circuits, offset piezoresistance is to ground wire, connect offset piezoresistance between the output terminal of three end integrated stable voltage circuits and earth terminal, namely the output of three end integrated stable voltage circuits be the output of monitor-type stabilized voltage supply.
2, pressure drop diode forms with two Diode series.
3, upper offset piezoresistance and lower offset piezoresistance are all adjustable resistances.
Above measure is explained as follows:
Fundamental purpose of the present invention is that realize can voltage stabilizing, again can floating charge, and the stabilized voltage supply that can also monitor, reaches following object: one is can when overcurrent-overvoltage, and initiatively prompting, is convenient to people and learns in time, safeguard in time.Two is to have stable output voltage.Three is to realize science floating charge.So it is a kind of stabilized voltage supply, it is again a kind of monitoring observation device.So the present invention has used following mode, achieve above-mentioned object.
1, the present invention is the stabilized voltage supply having possessed monitoring function, and when overcurrent, the display of existing light, has again the prompting of sound, so it is a kind of stabilized voltage supply, is again a kind of monitoring observation device.Jointly form primarily of protection start unit, monitoring effect unit, three-terminal voltage-stabilizing unit.Protection start unit protects triode, sample resistance, pressure drop diode, isolating diode to form by PNP; alarming effect unit is made up of sound warning piece, protective resistance, luminotron; the major function of Unit two has been monitoring and protecting effects; once equipment or power supply itself break down; make electric current excessive, this level is warned immediately.Three-terminal voltage-stabilizing unit is made up of three end integrated stable voltage circuits, upper offset piezoresistance, lower offset piezoresistance.The major function of this grade is the voltage to load stable output.Technician knows; three end integrated stable voltage circuits are kind of outstanding circuit; but because input voltage is low; general only 30 volts; so once input voltage is high will cause damage; so the present invention designs for this situation, once input end has had overvoltage, monitoring for protection level has sent warning immediately.
2, the protection principle of start unit and the alarming effect of monitoring are: once equipment or power supply itself break down; electric current is changed; PNP protects the pressure drop between transistor collector and base stage to change; cause PNP protect triode ON, make sound warning piece and luminotron send immediately sound warn and light warn.Protect the amplification of triode through PNP, even less change in pressure drop, sound warning piece and luminotron also can be made to send sound immediately and to warn and light is warned.
PNP protects triode to possess " tracking " character; when rectification output end just has change in voltage; the amplification of triode is protected through PNP; generation sound warning is immediately warned with light; and when rectification output end recovers normal; PNP triode disconnects immediately, so forms the monitoring to equipment and three end integrated voltage-stabilizeds.
The effect of isolating diode is; voltage stabilizing level and sound warning piece, luminotron are isolated; make the voltage of the input end of three end integrated voltage-stabilizeds can not flow back to the collector of PNP protection triode; when rectification output does not have problems; sound warning piece and luminotron can not error startings, and ensureing that the warning of every infrasonic sound and light are warned is all when breaking down.
The effect of pressure drop diode is; for the operating characteristic of PNP triode; PNP is protected between the collector of triode and base stage and there is pressure reduction; allow PNP protect triode normally to work, with the reason that diode does pressure drop without resistance be why, although the PNP amplification that resistance meets; but the not size of tube current; the voltage of three end integrated voltage-stabilized input ends is lost in capital, and the voltage of diode is definite value, so select diode to do pressure drop here.
3, in three-terminal voltage-stabilizing unit, the voltage of output can be adjusted easily.Three end integrated voltage-stabilizeds coordinate with it this is because have employed two adjusting resistances, form the adjustment of output voltage, three end integrated voltage-stabilized ground connection terminations time offset piezoresistance, the upper offset piezoresistance of output terminal and ground connection termination, therefore, the flexible adjustment of output voltage is achieved.This is very important for the electrical equipment having floating charge to need, because it can adjust the standard voltage value required for floating charge.
Following significant advantage is had after the invention process:
1, can voltage stabilizing, can floating charge be realized again, the stabilized voltage supply that can also monitor, if arrange standby or power supply itself and occurred fault, warn immediately, be not only and send light warning, also with sound warning, active warning user, if failure vanishes, warning also disappears thereupon, and tracing property is strong.
2, voltage regulation result is good.Can provide stable voltage, because the last output stage of this circuit is three end integrated stable voltage circuits, this circuit is a kind of outstanding integrated regulator, and voltage regulation result is good, and again containing multiple protection, so be a kind of outstanding mu balanced circuit.
3, anti-overflow is effective, and protection is large, and circuit is feasible, and ensureing that the warning of every infrasonic sound and light are warned is all when breaking down.
4, ensure that the reliability of three end integrated voltage-stabilizeds, because selected diode to do pressure drop, can not lose the voltage of three end integrated voltage-stabilized input ends, this, in the low place of civil power, is most valuable voltage.
5, easy to adjust, reliably can adjust the float charge voltage needed for accumulator, widely applicable, all can normally work in the low location of civil power and the high location of civil power.
6, circuit is simplified, easy scheduling and planning, and the element of joining is not fragile, improves the reliability of circuit.
Accompanying drawing explanation
Fig. 1 is monitor-type voltage-stabilized power supply circuit figure.
In figure: 01, rectification input; 02, sample resistance; 03, PNP protects triode; 04, pressure drop diode; 05, isolating diode; 06, sound warning piece; 07, protective resistance; 08, luminotron; 09, three end integrated voltage-stabilizeds; 010, lower offset piezoresistance; 011, upper offset piezoresistance; 012, the output of monitor-type stabilized voltage supply.
Embodiment
Fig. 1 is the concrete a kind of mode implemented.
1, pressure drop diode is the series connection of two diodes, and two regulating resistors all use adjustable resistance.
2, weld by Fig. 1 wiring diagram.
3, protection parameters is adjusted: be connected in the output of monitor-type stabilized voltage supply with table meter; fictitious load in the output end band of monitor-type stabilized voltage supply; adjustment fictitious load resistance simulation short trouble is to requiring; namely be the current peak occurring requiring; afterwards, at this moment current values shown in ammeter can significantly rise.Luminotron is bright simultaneously, and sound warning piece sends sound warning, otherwise should adjust the resistance of sample resistance.
4, standard float charge voltage value can be adjusted: the resistance of offset piezoresistance and lower offset piezoresistance in adjustment, make the output terminal of monitor-type stabilized voltage supply reach standard float charge voltage value.
Claims (3)
1. monitor-type stabilized voltage supply, is characterized in that: be jointly made up of protection start unit, monitoring effect unit, three-terminal voltage-stabilizing unit;
Wherein: protection start unit protects triode by PNP, sample resistance, pressure drop diode, isolating diode forms: the output of rectification connects two-way, one tunnel connects one end of sample resistance, another road connects the emitter that PNP protects triode, the other end of sample resistance connects two-way, one tunnel connects the base stage that PNP protects triode, another road connects pressure drop diode in three-terminal voltage-stabilizing unit, the input end of three end integrated stable voltage circuits, isolating diode is connected on the input end of three end integrated stable voltage circuits and PNP protects between the collector of triode, namely the collector of PNP triode is the output of protection start unit,
Monitoring effect unit is made up of sound warning piece, protective resistance and luminotron: a termination of protective resistance protects the output of start unit, and the other end sending and receiving light pipe of protective resistance is to ground wire, and sound warning piece is connected between the output of ground wire and protection start unit;
Three-terminal voltage-stabilizing unit three end integrated stable voltage circuit, upper offset piezoresistance, lower offset piezoresistance form: under the ground connection termination of three end integrated stable voltage circuits, offset piezoresistance is to ground wire, connect offset piezoresistance between the output terminal of three end integrated stable voltage circuits and earth terminal, namely the output of three end integrated stable voltage circuits be the output of monitor-type stabilized voltage supply.
2. monitor-type stabilized voltage supply according to claim 1, is characterized in that: pressure drop diode forms with two Diode series.
3. monitor-type stabilized voltage supply according to claim 1, is characterized in that: upper offset piezoresistance and lower offset piezoresistance are all adjustable resistances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520589695.1U CN204833033U (en) | 2015-08-07 | 2015-08-07 | Monitoring type constant voltage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520589695.1U CN204833033U (en) | 2015-08-07 | 2015-08-07 | Monitoring type constant voltage power supply |
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| Publication Number | Publication Date |
|---|---|
| CN204833033U true CN204833033U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520589695.1U Expired - Fee Related CN204833033U (en) | 2015-08-07 | 2015-08-07 | Monitoring type constant voltage power supply |
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| CN (1) | CN204833033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108829170A (en) * | 2018-07-11 | 2018-11-16 | 深圳开立生物医疗科技股份有限公司 | A kind of linear voltage-stabilizing circuit with overcurrent protection |
-
2015
- 2015-08-07 CN CN201520589695.1U patent/CN204833033U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108829170A (en) * | 2018-07-11 | 2018-11-16 | 深圳开立生物医疗科技股份有限公司 | A kind of linear voltage-stabilizing circuit with overcurrent protection |
| CN108829170B (en) * | 2018-07-11 | 2024-04-16 | 深圳开立生物医疗科技股份有限公司 | Linear voltage stabilizing circuit with overcurrent protection |
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| 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: 20151202 Termination date: 20170807 |
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| CF01 | Termination of patent right due to non-payment of annual fee |