CN106026668A - Over-voltage protection type constant-voltage output power supply based on high-voltage absorption circuit - Google Patents
Over-voltage protection type constant-voltage output power supply based on high-voltage absorption circuit Download PDFInfo
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- CN106026668A CN106026668A CN201610517118.0A CN201610517118A CN106026668A CN 106026668 A CN106026668 A CN 106026668A CN 201610517118 A CN201610517118 A CN 201610517118A CN 106026668 A CN106026668 A CN 106026668A
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- audion
- pole
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- resistance
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1213—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for DC-DC converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
Abstract
The invention discloses an over-voltage protection type constant-voltage output power supply based on a high-voltage absorption circuit. the over-voltage protection type constant-voltage output power supply is characterized by mainly comprising a transformer T, a diode D1, a triode VT5, a base trigger circuit respectively connected with the primary-side inductive coil L1 and the primary-side inductive coil L2 of the transformer T, and an over-voltage protection circuit connected with the dotted terminal of the primary-side inductive coil L1 of the transformer T. According to the technical scheme of the invention, the input voltage is monitored, and the voltage is regulated in real time. Therefore, the voltage is maintained within a constant range. In this way, even when the commercial power fluctuates, the output voltage is ensured to be constant. As a result, the power supply can better supply power to electronic devices. Meanwhile, the induced voltage generated on the coil of the transformer during the outage period can be absorbed, so that the high-voltage breakdown of electronic components within the system can be prevented. In addition, the circuit can be automatically switched off when the input voltage is in the over-voltage condition. The system is therefore protected from being damaged by the overvoltage. The safety performance of the over-voltage protection type constant-voltage output power supply is improved.
Description
Technical field
The present invention relates to electronic applications, specifically refer to a kind of overpressure-proof type constant voltage based on high pressure absorbing circuit
Out-put supply.
Background technology
Along with the high speed development of electronic technology, the kind of electronic equipment also gets more and more, to the life band of people
Carry out the biggest enjoyment.Any electronic equipment all be unable to do without reliable power supply, and the function of current electronic equipment is more
Coming the most diversified, they are more and more higher to the requirement of power supply.But current power supply stability is relatively low, hold
It is vulnerable to civil power influence of fluctuations, causes its output voltage unstable, have a strong impact on the service life of electronic equipment.
Summary of the invention
It is an object of the invention to solve the defect that current power supply stability is relatively low, it is provided that a kind of based on high pressure
The overpressure-proof type constant voltage out-put supply of absorbing circuit.
The purpose of the present invention is by following technical proposals reality: a kind of overvoltage protection based on high pressure absorbing circuit
Type constant voltage out-put supply, mainly by transformator T, diode D1, audion VT5, respectively with transformator T
The base stage that is connected of former limit inductance coil L1 and former limit inductance coil L2 trigger circuit, with transformator T's
The overvoltage crowbar that the Same Name of Ends of former limit inductance coil L1 is connected, one end and base stage trigger circuit be connected,
The P pole of the other end and diode D1 is collectively forming the secondary of the resistance R1 of input, positive pole and transformator T
The non-same polarity of inductance coil L2 is connected, negative pole colelctor electrode with audion VT5 after resistance R6 is connected
The electric capacity C6 connect, triggers, with audion VT5 and base stage, the sample circuit that circuit is connected respectively, is serially connected in change
High pressure absorbing circuit between Same Name of Ends and the non-same polarity of the former limit inductance coil L2 of depressor T, and with change
The voltage-stabilizing output circuit composition that the secondary inductance coil L3 of depressor T is connected；The N pole of described diode D1
It is connected with overvoltage crowbar.
Further, described high pressure absorbing circuit is by audion VT10, audion VT11, N pole and three poles
The base stage of pipe VT10 is connected, P pole emitter stage with audion VT11 after resistance R14 is connected two
Pole pipe D7, the resistance R12, N being serially connected between the emitter stage of audion VT10 and the P pole of diode D7
Two poles that pole is connected with the colelctor electrode of audion VT10, P pole is connected with the emitter stage of audion VT10
Pipe D8, negative pole colelctor electrode with audion VT10 after resistance R13 is connected, positive pole is with transformator T's
The electric capacity C9 that the non-same polarity of former limit inductance coil L2 is connected, positive pole is connected with the positive pole of electric capacity C9,
Electric capacity C10, the N pole that negative pole is connected with the colelctor electrode of audion VT11 is connected with the positive pole of electric capacity C9,
The diode D10 that P pole is connected with the colelctor electrode of audion VT11, and N pole is with audion VT11's
The Zener diode D9 composition that base stage is connected, P pole is connected with the P pole of diode D7；Described three poles
The base stage of pipe VT10 is connected with the Same Name of Ends of the former limit inductance coil L2 of transformator T.
Described overvoltage crowbar by audion VT6, audion VT7, audion VT8, audion VT9,
Resistance R8, the N pole and three being serially connected between the emitter stage of audion VT6 and the colelctor electrode of audion VT7
The base stage of pole pipe VT8 is connected, P pole colelctor electrode with audion VT6 after electric capacity C8 is connected two
Pole pipe D5, the resistance R9 being serially connected between the base stage of audion VT7 and the base stage of audion VT8, concatenation
Resistance R10 between the emitter stage and the emitter stage of audion VT9 of audion VT6, one end and audion
The emitter stage of VT9 is connected, the resistance R11 of other end ground connection, and the current collection of P pole and audion VT9
The diode D6 composition that pole is connected, N pole is connected with the emitter stage of audion VT7；Described audion
The base stage of VT6 as the input of this overvoltage crowbar and be connected with the N pole of diode D1, its collection
Electrode ground connection；The colelctor electrode of described audion VT8 is connected with the emitter stage of audion VT7, its emitter stage
It is connected with the base stage of audion VT9；The emitter stage of described audion VT7 is as this overvoltage crowbar
Outfan the Same Name of Ends with the former limit inductance coil L1 of transformator T are connected.
Described base stage triggering circuit is by audion VT1, audion VT2, and positive pole is defeated with overvoltage crowbar
Go out the polar capacitor C1 that end is connected, negative pole emitter stage with audion VT1 after resistance R3 is connected,
Resistance R2, the N pole and three being serially connected between the outfan of overvoltage crowbar and the colelctor electrode of audion VT1
The diode D2 that the base stage of pole pipe VT1 is connected, P pole is connected with the emitter stage of audion VT2, with
And positive pole is connected with the outfan of overvoltage crowbar, negative pole is connected with the colelctor electrode of audion VT2
Electric capacity C2 forms；The emitter stage of described audion VT2 is connected with the emitter stage of audion VT1, its collection
Electrode is connected with the non-same polarity of the former limit inductance coil L1 of transformator T, its base stage then with sample circuit phase
Connect；The former Same Name of Ends of limit inductance coil L2 of described transformator T is connected with the emitter stage of audion VT2
Connect；The negative pole of described polar capacitor C1 is connected with sample circuit.
Described sample circuit is by audion VT3, audion VT4, amplifier P, positive pole and polar capacitor C1
The electric capacity C3 that negative pole is connected, negative pole is connected with the base stage of audion VT3, be serially connected in audion VT2
Base stage and the colelctor electrode of audion VT4 between resistance R4, the emitter stage phase of positive pole and audion VT4
Connect, the electric capacity C4 that is connected with the emitter stage of audion VT3 of negative pole, be serially connected in the positive pole of amplifier P with
Resistance R5 between outfan, and positive pole is connected with the negative pole of amplifier P, negative pole and audion VT3
Emitter stage be connected while ground connection electric capacity C5 composition；The base stage of described audion VT4 and audion
The colelctor electrode of VT3 is connected, its colelctor electrode is connected with the positive pole of amplifier P；Described audion VT5's
Base stage is connected with the outfan of amplifier P, its emitter stage is connected with the emitter stage of audion VT3.
Described voltage-stabilizing output circuit is connected by the non-same polarity of P pole with the secondary inductance coil L3 of transformator T
Connect, the Same Name of Ends of the secondary inductance coil L3 of N pole and transformator T is collectively forming the Zener diode of outfan
D3, positive pole is connected with the N pole of Zener diode D3, negative pole after resistance R7 with the pair of transformator T
The electric capacity C7 that the Same Name of Ends of limit inductance coil L3 is connected, and the N pole of N pole and Zener diode D3
Be connected, Zener diode that P pole then Same Name of Ends with the secondary inductance coil L3 of transformator T is connected
D4 forms.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) voltage of input can be monitored by the present invention, and is adjusted voltage in real time, makes voltage
Maintaining in constant scope, so, even if fluctuation occurs in civil power, the present invention can also export constant electricity
Pressure so that it is can be preferably power electronic equipment.
(2) present invention can when there is overvoltage in input voltage automatic shutoff circuit, thus protect system not
Damaged by overvoltage.
(3) induced voltage on transformer coil when the present invention can absorb power-off, prevents high-voltage breakdown system
Interior electronic devices and components, improve the security performance of the present invention.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the structure chart of the overvoltage crowbar of the present invention.
Fig. 3 is the structure chart of the high pressure absorbing circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
As it is shown in figure 1, the present invention is mainly by transformator T, diode D1, audion VT5, respectively with change
The base stage that the former limit inductance coil L1 and former limit inductance coil L2 of depressor T is connected triggers circuit, with transformation
The overvoltage crowbar that the Same Name of Ends of the former limit inductance coil L1 of device T is connected, circuit is triggered with base stage in one end
Be connected, the P pole of the other end and diode D1 is collectively forming the resistance R1 of input, positive pole and transformator
The non-same polarity of the secondary inductance coil L2 of T is connected, negative pole after resistance R6 with the collection of audion VT5
The electric capacity C6 that electrode is connected, triggers, with audion VT5 and base stage, the sample circuit that circuit is connected respectively,
High pressure absorbing circuit between Same Name of Ends and the non-same polarity of the former limit inductance coil L2 being serially connected in transformator T,
And the voltage-stabilizing output circuit composition being connected with the secondary inductance coil L3 of transformator T；Described diode
The N pole of D1 is connected with overvoltage crowbar.
Described base stage triggers circuit by audion VT1, audion VT2, resistance R2, resistance R3, polarity
Electric capacity C1, electric capacity C2 and diode D2 form.
Wherein, the positive pole of polar capacitor C1 is connected with the outfan of overvoltage crowbar, its negative pole is through resistance
After R3, the emitter stage with audion VT1 is connected.Resistance R2 be serially connected in overvoltage crowbar outfan and
Between the colelctor electrode of audion VT1.The N pole of diode D2 is connected with the base stage of audion VT1, it
P pole is connected with the emitter stage of audion VT2.The outfan phase of the positive pole of electric capacity C2 and overvoltage crowbar
Connect, its negative pole is connected with the colelctor electrode of audion VT2.
The emitter stage of described audion VT2 is connected with the emitter stage of audion VT1, its colelctor electrode and transformation
The non-same polarity of the former limit inductance coil L1 of device T is connected, its base stage is then connected with sample circuit.Described
The former Same Name of Ends of limit inductance coil L2 of transformator T is connected with the emitter stage of audion VT2.Described pole
The negative pole of property electric capacity C1 is connected with sample circuit.
It addition, described sample circuit is by audion VT3, audion VT4, amplifier P, resistance R4, electricity
Resistance R5, electric capacity C3, electric capacity C4 and electric capacity C5.
During connection, the positive pole of electric capacity C3 is connected with the negative pole of polar capacitor C1, its negative pole and audion VT3
Base stage be connected.Resistance R4 is serially connected between the base stage of audion VT2 and the colelctor electrode of audion VT4.
The positive pole of electric capacity C4 is connected with the emitter stage of audion VT4, the emitter stage of its negative pole and audion VT3
It is connected.Resistance R5 is serially connected between positive pole and the outfan of amplifier P.The positive pole of electric capacity C5 and amplification
Ground connection while the negative pole of device P is connected, its negative pole is connected with the emitter stage of audion VT3.
Meanwhile, the base stage of described audion VT4 be connected with the colelctor electrode of audion VT3, its colelctor electrode with
The positive pole of amplifier P is connected.The base stage of described audion VT5 is connected with the outfan of amplifier P,
Its emitter stage is connected with the emitter stage of audion VT3.
Described voltage-stabilizing output circuit is by Zener diode D3, Zener diode D4, electric capacity C7 and resistance
R7 forms.During connection, the P pole of Zener diode D3 is non-same with the secondary inductance coil L3's of transformator T
Name end is connected, its N pole is collectively forming outfan with the Same Name of Ends of the secondary inductance coil L3 of transformator T.
The positive pole of electric capacity C7 is connected with the N pole of Zener diode D3, its negative pole after resistance R7 with transformator
The Same Name of Ends of the secondary inductance coil L3 of T is connected.The N pole of Zener diode D4 and Zener diode D3
N pole be connected, its P pole then Same Name of Ends with the secondary inductance coil L3 of transformator T is connected.
As in figure 2 it is shown, described overvoltage crowbar is by audion VT6, audion VT7, audion VT8,
Audion VT9, resistance R8, resistance R9, resistance R10, resistance R11, electric capacity C8, diode D5
And diode D6 composition.
During connection, resistance R8 is serially connected between the emitter stage of audion VT6 and the colelctor electrode of audion VT7.
The N pole of diode D5 is connected with the base stage of audion VT8, its P pole after electric capacity C8 with audion
The colelctor electrode of VT6 is connected.Resistance R9 is serially connected in base stage and the base stage of audion VT8 of audion VT7
Between.Resistance R10 is serially connected between the emitter stage of audion VT6 and the emitter stage of audion VT9.Resistance
One end of R11 is connected with the emitter stage of audion VT9, its other end ground connection.The P pole of diode D6
Be connected with the colelctor electrode of audion VT9, its N pole is connected with the emitter stage of audion VT7.
Meanwhile, the base stage of described audion VT6 as this overvoltage crowbar input and with diode D1
N pole be connected, its grounded collector.The colelctor electrode of described audion VT8 and the transmitting of audion VT7
Pole is connected, its emitter stage is connected with the base stage of audion VT9.The emitter stage of described audion VT7 is made
For the outfan of this overvoltage crowbar and it is connected with the Same Name of Ends of the former limit inductance coil L1 of transformator T.
As it is shown on figure 3, this high pressure absorbing circuit is by audion VT10, audion VT11, resistance R12,
Resistance R13, resistance R14, diode D7, diode D8, diode D9, diode D10, electric capacity
C9 and electric capacity C10 composition.
The N pole of diode D7 is connected with the base stage of audion VT10, its P pole after resistance R14 with
The emitter stage of audion VT11 is connected.Resistance R12 is serially connected in emitter stage and the diode of audion VT10
Between the P pole of D7.The N pole of diode D8 is connected with the colelctor electrode of audion VT10, its P pole with
The emitter stage of audion VT10 is connected.The negative pole of electric capacity C9 after resistance R13 with audion VT10's
Colelctor electrode is connected, its positive pole is connected with the non-same polarity of the former limit inductance coil L2 of transformator T.Electric capacity
The positive pole of C10 is connected with the positive pole of electric capacity C9, its negative pole is connected with the colelctor electrode of audion VT11.
The N pole of diode D10 is connected with the positive pole of electric capacity C9, the colelctor electrode of its P pole and audion VT11
It is connected.The N pole of Zener diode D9 is connected with the base stage of audion VT11, its P pole and diode
The P pole of D7 is connected.The former limit inductance coil L2's of the base stage of described audion VT10 and transformator T
Same Name of Ends is connected.
The voltage of input can be monitored by the present invention, and is adjusted voltage in real time, makes voltage maintain
In constant scope, so, even if fluctuation occurs in civil power, the present invention can also export constant voltage,
Can be preferably power electronic equipment.Sensing on transformer coil when the present invention can absorb power-off
Voltage, prevents the intrasystem electronic devices and components of high-voltage breakdown, it is also possible to when overvoltage occurs in input voltage certainly
Dynamic circuit breaker open circuit, thus protect system not damaged by overvoltage, improve the security performance of the present invention.
As it has been described above, just can well realize the present invention.
Claims (6)
1. an overpressure-proof type constant voltage out-put supply based on high pressure absorbing circuit, it is characterised in that: main
By transformator T, diode D1, audion VT5, respectively with the former limit inductance coil L1 of transformator T and
Base stage that former limit inductance coil L2 is connected triggers circuit, same with the former limit inductance coil L1 of transformator T
The name overvoltage crowbar that is connected of end, one end trigger with base stage circuit be connected, the other end and diode D1
P pole be collectively forming the resistance R1 of input, positive pole and the secondary inductance coil L2 of transformator T non-with
The electric capacity C6 that name end is connected, negative pole colelctor electrode with audion VT5 after resistance R6 is connected, respectively
Trigger, with audion VT5 and base stage, the sample circuit that circuit is connected, be serially connected in the former limit inductance of transformator T
High pressure absorbing circuit between Same Name of Ends and the non-same polarity of coil L2, and with the secondary inductance of transformator T
The voltage-stabilizing output circuit composition that coil L3 is connected；The N pole of described diode D1 and overvoltage crowbar phase
Connect.
A kind of overpressure-proof type constant voltage based on high pressure absorbing circuit the most according to claim 1 output electricity
Source, it is characterised in that described high pressure absorbing circuit is by audion VT10, audion VT11, N pole and three
The base stage of pole pipe VT10 is connected, P pole emitter stage with audion VT11 after resistance R14 is connected
Diode D7, the resistance R12 being serially connected between the emitter stage of audion VT10 and the P pole of diode D7,
N pole is connected with the colelctor electrode of audion VT10, P pole is connected with the emitter stage of audion VT10 two
Pole pipe D8, negative pole colelctor electrode with audion VT10 after resistance R13 is connected, positive pole and transformator T
The electric capacity C9 that is connected of the non-same polarity of former limit inductance coil L2, positive pole is connected with the positive pole of electric capacity C9,
Electric capacity C10, the N pole that negative pole is connected with the colelctor electrode of audion VT11 is connected with the positive pole of electric capacity C9,
The diode D10 that P pole is connected with the colelctor electrode of audion VT11, and N pole is with audion VT11's
The Zener diode D9 composition that base stage is connected, P pole is connected with the P pole of diode D7；Described three poles
The base stage of pipe VT10 is connected with the Same Name of Ends of the former limit inductance coil L2 of transformator T.
A kind of overpressure-proof type constant voltage based on high pressure absorbing circuit the most according to claim 2 output electricity
Source, it is characterised in that: described overvoltage crowbar by audion VT6, audion VT7, audion VT8,
Audion VT9, is serially connected in the resistance between the emitter stage of audion VT6 and the colelctor electrode of audion VT7
R8, N pole is connected with the base stage of audion VT8, P pole after electric capacity C8 with the current collection of audion VT6
The diode D5 that pole is connected, is serially connected between the base stage of audion VT7 and the base stage of audion VT8
Resistance R9, the resistance R10 being serially connected between the emitter stage of audion VT6 and the emitter stage of audion VT9,
One end is connected with the emitter stage of audion VT9, the resistance R11 of other end ground connection, and P pole and three poles
The diode D6 composition that the colelctor electrode of pipe VT9 is connected, N pole is connected with the emitter stage of audion VT7；
The base stage of described audion VT6 as this overvoltage crowbar input and with the N pole phase of diode D1
Connection, its grounded collector；The colelctor electrode of described audion VT8 is connected with the emitter stage of audion VT7,
Its emitter stage is connected with the base stage of audion VT9；The emitter stage of described audion VT7 is protected as this overvoltage
The outfan of protection circuit is also connected with the Same Name of Ends of the former limit inductance coil L1 of transformator T.
A kind of overpressure-proof type constant voltage based on high pressure absorbing circuit the most according to claim 3 output electricity
Source, it is characterised in that: described base stage triggers circuit by audion VT1, audion VT2, positive pole and overvoltage
The outfan of protection circuit is connected, negative pole emitter stage with audion VT1 after resistance R3 is connected
Polar capacitor C1, is serially connected in the resistance between the outfan of overvoltage crowbar and the colelctor electrode of audion VT1
R2, N pole is connected with the base stage of audion VT1, P pole is connected with the emitter stage of audion VT2 two
Pole pipe D2, and positive pole is connected with the outfan of overvoltage crowbar, the current collection of negative pole and audion VT2
The electric capacity C2 composition that pole is connected；The emitter stage of described audion VT2 and the emitter stage phase of audion VT1
Connect, its colelctor electrode be connected with the non-same polarity of the former limit inductance coil L1 of transformator T, its base stage then with
Sample circuit is connected；The Same Name of Ends of the former limit inductance coil L2 of described transformator T is with audion VT2's
Emitter stage is connected；The negative pole of described polar capacitor C1 is connected with sample circuit.
A kind of overpressure-proof type constant voltage based on high pressure absorbing circuit the most according to claim 4 output electricity
Source, it is characterised in that: described sample circuit is by audion VT3, audion VT4, amplifier P, positive pole
Be connected with the negative pole of polar capacitor C1, electric capacity C3 that negative pole is connected with the base stage of audion VT3, string
The resistance R4 being connected between the base stage of audion VT2 and the colelctor electrode of audion VT4, positive pole and audion
The electric capacity C4 that the emitter stage of VT4 is connected, negative pole is connected with the emitter stage of audion VT3, is serially connected in and puts
Resistance R5 between positive pole and the outfan of big device P, and positive pole is connected with the negative pole of amplifier P, bear
Pole be connected with the emitter stage of audion VT3 while ground connection electric capacity C5 composition；Described audion VT4
Base stage be connected with the colelctor electrode of audion VT3, its colelctor electrode is connected with the positive pole of amplifier P；Institute
The outfan of the base stage and amplifier P of stating audion VT5 is connected, its emitter stage is sent out with audion VT3's
Emitter-base bandgap grading is connected.
A kind of overpressure-proof type constant voltage based on high pressure absorbing circuit the most according to claim 5 output electricity
Source, it is characterised in that: described voltage-stabilizing output circuit is non-by P pole and the secondary inductance coil L3's of transformator T
Same Name of Ends is connected, N pole is collectively forming outfan with the Same Name of Ends of the secondary inductance coil L3 of transformator T
Zener diode D3, positive pole is connected with the N pole of Zener diode D3, negative pole after resistance R7 with change
The electric capacity C7 that the Same Name of Ends of the secondary inductance coil L3 of depressor T is connected, and N pole and Zener diode
The N pole of D3 is connected, P pole is then steady with what the Same Name of Ends of the secondary inductance coil L3 of transformator T was connected
Pressure diode D4 composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610517118.0A CN106026668A (en) | 2016-07-04 | 2016-07-04 | Over-voltage protection type constant-voltage output power supply based on high-voltage absorption circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610517118.0A CN106026668A (en) | 2016-07-04 | 2016-07-04 | Over-voltage protection type constant-voltage output power supply based on high-voltage absorption circuit |
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| Publication Number | Publication Date |
|---|---|
| CN106026668A true CN106026668A (en) | 2016-10-12 |
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ID=57106831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610517118.0A Pending CN106026668A (en) | 2016-07-04 | 2016-07-04 | Over-voltage protection type constant-voltage output power supply based on high-voltage absorption circuit |
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| CN (1) | CN106026668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116131219A (en) * | 2023-02-16 | 2023-05-16 | 恩赛半导体(成都)有限公司 | Overvoltage protection circuit and electronic device |
-
2016
- 2016-07-04 CN CN201610517118.0A patent/CN106026668A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116131219A (en) * | 2023-02-16 | 2023-05-16 | 恩赛半导体(成都)有限公司 | Overvoltage protection circuit and electronic device |
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Application publication date: 20161012 |
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| WD01 | Invention patent application deemed withdrawn after publication |