CN2377552Y - Wide-range high-power switching voltage-regalated power supply - Google Patents
Wide-range high-power switching voltage-regalated power supply Download PDFInfo
- Publication number
- CN2377552Y CN2377552Y CN 98229858 CN98229858U CN2377552Y CN 2377552 Y CN2377552 Y CN 2377552Y CN 98229858 CN98229858 CN 98229858 CN 98229858 U CN98229858 U CN 98229858U CN 2377552 Y CN2377552 Y CN 2377552Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- output
- voltage
- transformer
- switch
- 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
Links
Images
Landscapes
- Rectifiers (AREA)
Abstract
The utility model relates to a high-power switching voltage-regulated power supply capable of normally working within a network voltage range from 100 to 280V, which comprises a sampling circuit (1), a control circuit (2), a DC-AC converting circuit (3), a quick rectifying circuit (4) and a filter circuit (5). The network voltage from 100 to 280V is respectively input into the circuits, and stable direct current power supply is obtained. The utility model is particularly suitable to be used in areas with unstable network voltage and fluctuated variation in a large range, and is especially suitable to be served as the voltage-regulated power supply for communication equipment in the areas with the network voltage in a range from 100 to 280V in a long term.
Description
The utility model relates to a kind of D.C. regulated power supply.
Kind is more though wide region high power switch stabilized voltage supply product emerges, and is mostly to adopt input direct voltage.Though disclose a kind of " continuous regulating mechanism of high power DC stabilized voltage supply " in CN2062133U patent documentation in 1987, its input ac voltage scope is 220V, output voltage range is 0～100V.Because of China's rural small hydropower electrical network, particularly the voltage of outlying mountain area's electrical network is very unstable, the interior on a large scale of 100～270V of being everlasting fluctuates, various electric equipments such as various household appliances, post and telecommunications equipment, programme-controlled exchange can not normally be used, equipment even therefore damage, the CN2062133U patented technology still can not overcome this disadvantage.
The purpose of this utility model is at the above-mentioned defective in the prior art, designs a kind of high power switch stabilized voltage supply that can export stable DC voltage, even in the fluctuation range of line voltage 100-280V, it still can operate as normal.
The utility model constitutes by exchanging sample circuit 1, control circuit 2, DC-AC translation circuit 3, quick rectification circuit 4 and output filter circuit 5, the line voltage of 100-280V enters DC-AC translation circuit 3 behind input AC sample circuit 1, the control circuit 2 successively, and the high-frequency impulse after the conversion is through exporting galvanic current pressure signal behind rectification circuit 4 and the filtering circuit 5 fast; When line voltage is lower than 200V, exchange sample circuit 1 output high level signal, DC-AC translation circuit 3 is exported direct-flow steady voltage in the working range of 100-200V; When line voltage is higher than 200V, exchange sample circuit 1 output low level signal, DC-AC translation circuit 3 is exported direct-flow steady voltage in the working range of 200-280V.
Describe the utility model in detail below in conjunction with embodiment.
Fig. 1: design concept figure of the present utility model;
Fig. 2: the theory diagram of the utility model embodiment;
Fig. 3: the control circuit embodiment in the utility model;
Fig. 4: the DC-AC translation circuit embodiment 2 in the utility model;
Fig. 5: the DC-AC translation circuit embodiment 1 in the utility model;
Fig. 6: the fast charging and discharging driving circuit embodiment in the utility model;
Fig. 7: the fast charging and discharging circuit waveform figure in the utility model;
Fig. 8: circuitry figure of the present utility model.
Ac input signal obtains 300V left and right sides high direct voltage through power switch K, high-low pressure protective relay 13, alternating current filter 14, rectifier 15 through hv filtering device 16.Gating pulse by PWM7 output is sent into DC-AC translation circuit 3 through fast charging and discharging circuit 6, and high direct voltage is transformed into constant frequency action of low-voltage pulse electric current, through quick rectification circuit 4, output filter 5, obtains required low-voltage direct stabilized voltage supply again.Also comprise the sample circuit 11, setting valve adjustment circuit 8, holding circuit 9 and the display 10 that are used to export sampling in the present embodiment.Sample circuit 11 takes out the voltage and current signal from wave filter 5 output terminals and sends into holding circuit 9, and too high when low pressure output, holding circuit 9 is moved when crossing low or overcurrent, turn-offs the output pulse of PWM7, and DC-AC transducer 3 is quit work, and sends into display 10 simultaneously.The function that setting valve is adjusted circuit 8 be adjust over-voltage and over-current current limliting, voltage output value, all fill, float charge voltage value etc.When line voltage is lower than 200V, exchange sample circuit 1 output high level, make control circuit 2 actions, the switch transformer duty of working changes thereupon.When exchanging AC-input voltage that sample circuit 1 obtains beyond 100-280V the time, export the output pulse that high level removes to turn-off PWM7 equally, Alternating Current Power Supplies are cut off in low-voltage variation relay 13 actions simultaneously, and output filter 5 is quit work.
In an embodiment, the measure that realizes the work of complete machine wide region is to adopt the sequential action of low-voltage relay by (A) → (B) → (C), the primary turns of gauge tap transformer can make switch transformer work in by turns in the different range of 100-200V, 200-280V in the control DC-AC transducer 3.
The embodiment of control circuit (2) and DC-AC translation circuit is as shown in Figure 3:
When AC-input voltage is 100-200V:
(A) high level is behind control circuit (2), through J
31,2 points, D
2, R
06Turn-off the output pulse of PWM, simultaneously through R
01Give C
1Charging, high level is through D
10, R, C
09Make J
1Action (V
1Conducting), high pressure change-over switch J
1.14,5 high direct voltages power supplies of disconnect cutting off DC-AC; →
(B) high level is through R
04, C
08Make J
3Action (V
3Conducting), two-way switch J in the DC-AC circuit
3, 4,6 and 7,9 connect (or J
3 ', in 4,6 and 7,9 connections), make switch transformer TK
2J in the work (or switch transformer elementary winding parallel running), control circuit (2)
31,3 connections; →
(C) because 1,3 connections of J3 in the control circuit (2), J
1Reset high pressure change-over switch J
1.1In 4,5 connections, recover the power supply of DC-AC transducer high direct voltage, PWM recovers the output pulse after several seconds, output filter 5 output stable DC voltages, complete machine works in the 100-200V scope.
When AC-input voltage is 200-280V:
(A) low level that exchanges sample circuit (1) output arrives control circuit (2) after J
31,3 points, D
6Making the C point of V2 is high level (V
2Conducting), high level is through D
6, D
2, R
06Turn-off the output pulse of PWM, simultaneously through R
01Give capacitor C
1Charging; V
2The high level that C is ordered is through R
04, C
08Make V
1Action, high pressure change-over switch J
1.14,5 high direct voltages power supplies that disconnect to cut off DC-AC; →
(B) low level is through R
04, C
08Make J
3Reset J
34,5 conducting (or J
3In 4 and 5 connect, 7 and 8 connections), make switch transformer TK
1(or first utmost point windings in series of switch transformer) work; →
(C) J in the control circuit (2)
31,2 connections, low level one tunnel is through D
10, C
09Make J
1Reset high pressure change-over switch J
1.1In 4,5 connections make the DC-AC transducer recover the high direct voltage power supply, another road is through D
2, R
06Make PWM recover the output pulse, output filter 5 output stable DC voltages, complete machine works in the scope of 200-280V.
DC-AC translation circuit (3) can be selected following two kinds of embodiment:
Embodiment 1
Adopt a switch transformer: sample circuit output low level when line voltage is higher than 200V, control circuit is failure to actuate, the elementary winding T of switch transformer
1, T
2Tandem working makes power work in the line voltage scope of 200V-280V.When AC-input voltage is lower than 200V, sample circuit output high level, control circuit moves by the sequential of following (A) → (B) → (C):
(A) turn-off PWM driving pulse, J
14,6 connections, cut off AC-input voltage; →
(B) J
3Action is with the elementary winding T of transformer TK
1, T
2Parallel running, shown in Figure 3 as the DC-AC translation circuit; →
(C) J
1Reset, connect AC-input voltage, PWM recovers driving pulse.After more than action was finished, PWM (11) recovered driving pulse, and this moment, complete machine worked in the 100-200V scope.
When line voltage returns to 200～280V scope, exchange sample circuit 1 output low level, control circuit is according to the sequential action of above-mentioned (A) → (B) → (C), J
34,5 and 7,8 connections, make the inferior utmost point winding serial connection of switch transformer TK, this moment, power work was in 200～280V line voltage scope.
Embodiment 2:
The DC-AC circuit has adopted two switch transformer TK according to the sequential action
1, TK
2, switch TK by J3
1, TK
2Elementary, J
35,8 insert TK respectively
1Elementary two ends, 6,9 are inserted respectively and TK
2Elementary two ends.
When line voltage greater than 200V, when exchanging the sample circuit output low level, control circuit is according to the sequential action of above-mentioned (A) → (B) → (C):
(A) the output pulse of shutoff PWM, J
1Action, 4,5 ends disconnect, the Alternating Current Power Supply of cutting off the electricity supply; →
(B) J
34,5 and 7,8 connections, 4,6 with 7,9 disconnections, switch transformer is by TK
1Work; →
(C) J
1Reset J
14,5 terminations logical, the power up power supply, PWM recovers the output driving pulse, this moment, power work was in the line voltage scope of 200～280V.When line voltage is lower than 200V, exchange sample circuit 1 output high level, control circuit makes J according to above-mentioned sequential
34,6 and 7,9 connections, 4,5 and 7,8 disconnections, switch transformer is by TK
1Switch to TK
2Work, power work is in the line voltage scope of 100～280V at this moment.
The above course of work shows, when line voltage changes in the scope of 100-280V, as long as take any one among above-mentioned two embodiment, the sequential action change-over switch primary winding of complying with (A) → (B) → (C) makes 1 its serial or parallel connection, or change-over switch transformer TK
1, TK
2Wheel changes jobs, and stabilized voltage supply is worked in the line voltage scope of 100V-280V safely and reliably.
The embodiment of fast charging and discharging driving circuit is as shown in Figure 6:
The fast charging and discharging part of this circuit is by R
2(or R
5), R
3(or R
6), D
4(or D
6) and VD
2(or VD
4) constitute R
2(or R
5), R
3(or R
6) an end and D
4(or D
6) positive pole respectively with VD
2(or VD
4) collector, base stage, emitter join R
2(or R
5) the inferior utmost point 3 of another termination transformer T, R
3(or R
6) the other end and D
4(or D
6) the negative pole parallel connection after join with the inferior utmost point 4 ends of transformer T.In the present embodiment, timeconstant is in 2 μ s.
The drive part of this circuit is by emitter follower IC
1(or IC
2), switching tube VD
1(or VD
3), resistance R
1(or R
4) and transformer T
1(or T
2) constitute; IC
1(or IC
2) input signal connect the output signal of PWM (11), its output signal meets VD
1(or VD
3) base stage, R
1(or R
4) and transformer T
1(or T
2) the VD that inserts elementary in parallel
1(or VD
3) collector, VD
1(or VD
3) grounded emitter.
In order to reduce machine loss, improve the complete machine work efficiency, improve the reliability of stabilized voltage supply work, also added fast charging and discharging circuit 6 for the DC--AC circuit in an embodiment, the shut-in time of switching tube is dropped to below the 0.1 μ s, have and discharge and recharge soon, the distortionless characteristics of drive waveforms have further improved the stability of equipment.It comprises emitter follower IC
1(or IC
2) (can also form by discrete component), switching tube VD
1(or VD
3), resistance R
1(or R
4), transformer T
1(or T
2), the fast charging and discharging part is by R
2(or R
5), D
4(or D
6) and VD
2(or VD
4) constitute.Transformer extremely can be chosen the winding of right quantity as required around 4 windings.The driving pulse of PWM (11) output is shown in (a) among Fig. 5, through IC
1(or IC
2), VD
1(or VD
3), R
1(or R
4) and transformer T
1(or T
2) the driving pulse of the first utmost point with broadened, shown in (b) among Fig. 5, the driving pulse of broadening can make the DC-AC transducer increase switching loss, causes self-excitation, sometimes conducting simultaneously and damage power switch pipe, thus the reliability that stabilized voltage supply is used reduced.Use fast charging and discharging circuit R
2(or R
5), D
4(or D
6) and VD
2(or VD
4) after, driving pulse is consistent with the driving pulse of PWM output, shown in Fig. 5 (c), has reached the purpose that reduces loss, raises the efficiency, improves power supply reliability.In illustrated embodiment, IC
1, IC
2Model be 1/4 μ A324, VD
1-VD
4Be 3DG4.
The utility model machine loss is little, high efficiency, waveform distortion is little, can be in the wide region of 100-180V normal stable series specification such as the DC voltage such as 48V, 24V, 12V of output waveform,, be particularly suitable for using in line voltages such as rural area, small power station instability and under the situation that fluctuation changes on a large scale.When the wide region of voltage ripple of power network at 100-180V, as electric equipment direct voltage sources such as various household appliances, post and telecommunications equipment, programme-controlled exchanges, the power source loads damage phenomenon that can fundamentally avoid line voltage wide fluctuations factor to be caused takes place with it.
Claims (6)
1, a kind of wide region high power switch stabilized voltage supply, it is characterized in that constituting by exchanging sample circuit 1, control circuit 2, DC-AC translation circuit 3, quick rectification circuit 4 and output filter circuit 5, the line voltage of 100-280V enters DC-AC translation circuit 3 behind input AC sample circuit 1, the control circuit 2 successively, and the high-frequency impulse after the conversion is through exporting galvanic current pressure signal behind rectification circuit 4 and the filtering circuit 5 fast;
When line voltage is lower than 200V, exchange sample circuit 1 output high level signal, DC-AC translation circuit 3 is exported direct-flow steady voltage in the working range of 100-200V;
When line voltage is higher than 200V, exchange sample circuit 1 output low level signal, DC-AC translation circuit 3 is exported direct-flow steady voltage in the working range of 200-280V.
2, wide region high power switch stabilized voltage supply as claimed in claim 1 is characterized in that described DC-AC translation circuit 3 is by switch transformer TK and the elementary change-over switch J of access TK according to the sequential action
3Constitute J
35 with 9 connections, TK's is elementary according to J
3Switch instances work in the serial or parallel connection state by turns.
3, wide region high power switch stabilized voltage supply as claimed in claim 1 is characterized in that described DC-AC translation circuit 3 is by 2 switch transformer TK according to the sequential action
1, TK
2Constitute, by J
3Switch TK
1, TK
2Elementary, J
35,8 insert TK respectively
1Elementary two ends, 6,9 are inserted TK respectively
2Elementary two ends.
4, wide region high power switch stabilized voltage supply as claimed in claim 1 is characterized in that described DC-AC translation circuit 3 controlled circuit 2 controls, and control timing is:
Sample circuit 1 output low level when line voltage is higher than 200V, control circuit 2 is failure to actuate, the elementary windings in series work of switch transformer TK, output filter 5 output stable DC voltages;
When line voltage is lower than 200V, exchange sample circuit 1 output high level, control circuit 2 moves according to the sequential of (A) → (B) → (C):
(A): turn-off the PWM7 driving pulse, J
14,6 connections, cut off AC-input voltage →
(B): J
3Action is with the elementary winding T of transformer TK
1, T
2In parallel →
(C): J
1Reset, connect AC-input voltage, PWM7 recovers driving pulse, and output filter 5 is exported stable DC voltage in 100～200V line voltage scope;
When line voltage during in 200～280V scope, exchange sample circuit defeated 1 and go out low level, control circuit is according to the sequential action of above-mentioned (A) → (B) → (C), J
34,5 and 7,8 connections, the inferior utmost point winding serial connection of switch transformer TK, output filter 5 output stable DC voltages.
5, wide region high power switch stabilized voltage supply as claimed in claim 1 is characterized in that the sequential of described control circuit 2 control DC-AC translation circuits 3 is:
When line voltage greater than 200V, when exchanging sample circuit 1 output low level, control circuit 2 is according to the sequential action of (A) → (B) → (C):
(A): turn-off the output pulse of PWM7, J
1Action, 4,5 disconnections, the Alternating Current Power Supply of cutting off the electricity supply →
(B): J
34,5 ends and 7,8 terminations logical, 4,6 with 7,9 disconnections, switch transformer TK
1Work →
(C): J
1Reset J
14,5 connections, power up power supply, PWM7 recovers the output driving pulse, output filter 5 is exported stable DC voltage in the line voltage scope of 200～280V; When line voltage is lower than 200V, exchange sample circuit 1 output high level, control circuit 2 makes J according to above-mentioned sequential
34,6 and 7,9 connections, 4,5 and 7,8 disconnections, switch transformer is by TK
1Switch to TK
2Work, output filter 5 is at the line voltage scope output stable DC voltage of 100-280V
6, wide region high power switch stabilized voltage supply as claimed in claim 1 is characterized in that having inserted fast charging and discharging driving circuit 6 at the input end of described DC-AC translation circuit 3, and the fast charging and discharging part of this circuit is by R
2Or R
5, R
3Or R
6, D
4Or D
6And VD
2Or VD
4Constitute R
2Or R
5, R
3Or R
6An end and D
4Positive pole respectively with VD
2Or VD
4Collector, base stage, emitter join R
2Or R
5The inferior utmost point 3 ends of another termination transformer T, R
3Or R
6The other end and D
4Or D
6The negative pole parallel connection after connect the inferior utmost point 4 ends of transformer T;
The drive part of fast charging and discharging driving circuit 6 is by emitter follower IC
1Or IC
2, switching tube VD
1Or VD
3, resistance R
1Or R
4And transformer T
1Or T
2Constitute; IC
1Or IC
2Input signal connect the output signal of PWM11, its output signal meets VD
1Or VD
3Base stage, R
1Or R
4With transformer T
1Or T
2The VD that inserts elementary in parallel
1Or VD
3Collector, VD
1Or VD
3Grounded emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229858 CN2377552Y (en) | 1998-11-11 | 1998-11-11 | Wide-range high-power switching voltage-regalated power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229858 CN2377552Y (en) | 1998-11-11 | 1998-11-11 | Wide-range high-power switching voltage-regalated power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2377552Y true CN2377552Y (en) | 2000-05-10 |
Family
ID=33979664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98229858 Expired - Fee Related CN2377552Y (en) | 1998-11-11 | 1998-11-11 | Wide-range high-power switching voltage-regalated power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2377552Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100394343C (en) * | 2005-05-24 | 2008-06-11 | 重庆宇通仪器仪表有限公司 | Parameter type switch voltage-stablized power supply and its control circuit |
| CN101300738B (en) * | 2004-11-16 | 2011-05-04 | 硅系统设计公司 | Switching circuit which is used to obtain a doubled dynamic range |
| CN108414852A (en) * | 2018-01-30 | 2018-08-17 | 北京润科通用技术有限公司 | A kind of fault injection system and method for high-voltage digital amount signal |
-
1998
- 1998-11-11 CN CN 98229858 patent/CN2377552Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101300738B (en) * | 2004-11-16 | 2011-05-04 | 硅系统设计公司 | Switching circuit which is used to obtain a doubled dynamic range |
| CN100394343C (en) * | 2005-05-24 | 2008-06-11 | 重庆宇通仪器仪表有限公司 | Parameter type switch voltage-stablized power supply and its control circuit |
| CN108414852A (en) * | 2018-01-30 | 2018-08-17 | 北京润科通用技术有限公司 | A kind of fault injection system and method for high-voltage digital amount signal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2840508Y (en) | High frequency high voltage DC power supply for electric dust-cleaner | |
| CN208386212U (en) | A kind of uninterruptible power supply | |
| CN108032740A (en) | A kind of energy storage type electric automobile charging pile system | |
| CN203104332U (en) | Universal AC adapter for AC and DC | |
| CN1073304C (en) | Two-wire power supply electronic switch | |
| CN2377552Y (en) | Wide-range high-power switching voltage-regalated power supply | |
| CN106300925A (en) | Driving control circuit, method and the system thereof of AC DC circuit | |
| CN1064189C (en) | Snubber circuit, voltage converter circuit and method in such a snubber circuit | |
| CN109450279A (en) | Three-level type AC and DC power electronic transformer dc-link capacitance pre-charge method | |
| CN2579075Y (en) | IGCT driving power supply | |
| CN2562476Y (en) | Accumulated electric power source | |
| CN1558524A (en) | Charging device | |
| CN206041785U (en) | AC drive and control circuit of DC circuit and system thereof | |
| CN2518136Y (en) | Electricity saver | |
| CN201601614U (en) | Power type switching power supply | |
| CN105991020A (en) | Power factor correction rectifier and uninterrupted power supply | |
| CN205753578U (en) | The USB quick charger of multiple-channel output | |
| CN111106751A (en) | Digital parallel type high-power electric vehicle charging power supply system based on LLC | |
| CN2566519Y (en) | Improved push-pull type boosted circuit | |
| CN103887996A (en) | Transformer-isolated soft commutation chopping power supply main circuit for storage battery | |
| CN117104041B (en) | Vehicle-mounted charging circuit suitable for electric automobile and vehicle | |
| CN2222374Y (en) | DC power source for electric station (factory) | |
| CN2241410Y (en) | Nickel-cadmium battery charger | |
| CN213937517U (en) | Charging control system for super capacitor module | |
| CN220291888U (en) | Novel common-ground single-phase three-level three-time boosting inverter based on switch capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |