CN2406412Y - Out-put voltage linear and continuous adjustable switch power supply - Google Patents
Out-put voltage linear and continuous adjustable switch power supply Download PDFInfo
- Publication number
- CN2406412Y CN2406412Y CN99254568U CN99254568U CN2406412Y CN 2406412 Y CN2406412 Y CN 2406412Y CN 99254568 U CN99254568 U CN 99254568U CN 99254568 U CN99254568 U CN 99254568U CN 2406412 Y CN2406412 Y CN 2406412Y
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Abstract
The utility model relates to a switch power supply technique capable of making output voltage continuous linearity automatically adjusted. An electronic circuit of the switch power supply comprises an over pressure and over current protection and high frequency filter circuit, a bridge rectifier and smoothing wave filtering circuit, a high-frequency inverter circuit, an output rectification and smoothing wave filtering circuit, an output automatic voltage regulating circuit and an input interface circuit, wherein, the main elements of the output automatic voltage regulating circuit are a photoelectric coupler and a controllable parallel regulator. The main element of the input interface circuit is a triode. The utility model has the advantages of simple circuit and low cost. In addition, the output voltage continuous linearity can be automatically adjusted, and the linearity is better.
Description
The utility model relates to a kind of switch power technology that can make the continuous linear automatic and adjustable of output voltage.
In the prior art field, the continuous rearrangeable switch power technology of output voltage has begun to use in some electronic products, but its complex circuit and debugging are difficult, again because of it uses element more, so cost is also higher.
The purpose of this utility model is to provide a kind of circuit simple and cost is also lower, but the linear better continuous linear automatic and adjustable Switching Power Supply of output voltage.
For achieving the above object, the utility model adopts following technical scheme:
It is to be debug by electronic circuit and printed circuit board (PCB) thereof to form; its electronic circuit comprises: over-voltage over-current protection and power supply common mode filtering circuit 11; bridge rectifier and smoothed filter circuit 12; high-frequency inverter circuit 13; output rectification and smoothed filter circuit 14; output automatic voltage regulation circuit 15 and input interface circuit 16 are characterized in described output automatic voltage regulation circuit 15, by photoelectrical coupler U
2, controlled parallel regulator U
3, resistor R
7～R
10, capacitor C
10, C
13Form, its circuit element connects as follows: photoelectrical coupler U
2Pin 3 be connected U with 4 with high-frequency inverter circuit 13
2 Pin 2 and resistor R
7An end link to each other and R
7The other end then with capacitor C
10Positive pole, resistor R
8An end, capacitor C
13An end and controlled parallel regulator U
3Pin 3 link to each other U
3Pin 2 and C
10Negative pole and output loop ground wire d
2Link to each other, and U
31 of pin and resistor R
9, R
10, R
11An end and C
13The other end link to each other U
2Pin 1 and R
8The other end and output loop rectifier diode V
8Negative terminal and filter inductor L
2An end link to each other R
9The other end and L
2The other end link to each other R
9The other end also can with V
8Negative terminal link to each other R
10The other end then with output loop ground wire d
2Link to each other; Described input interface circuit 16 is by triode V
9, resistor R
11～R
13, R
15, R
16And capacitor C
16Form, its circuit element connects as follows: triode V
9Collector electrode and resistor R
11An end link to each other and R
11The other end then link to each other V with the r point
9Emitter and resistor R
12An end link to each other and R
12The other end then with output loop ground wire d
2Point links to each other, V
9Base stage and resistor R
13An end link to each other and R
13The other end then with resistor R
15, R
16An end, capacitor C
16Positive pole link to each other R
15The other end and C
16Negative pole and ground wire d
2Link to each other, and R
16The other end then with control voltage U
CInput K link to each other.
Distinguishing feature of the present utility model is that circuit is simple, cost is low, control is easy and good linearity.
Fig. 1---circuit block diagram:
Fig. 2---circuit diagram.
Example product of the present utility model is as follows: the product that forms is debug by electronic circuit and printed circuit board (PCB) thereof by the utility model system, and its electronic circuit comprises: circuit 11---over-voltage over-current protection and power supply common mode filtering circuit; Circuit 12---bridge rectifier and smoothed filter circuit, circuit 13---high-frequency inverter circuit, circuit 14---output rectification and smoothed filter circuit, circuit 15---output automatic voltage regulation circuit, circuit 16---input interface circuit, the main device that it is characterized in that circuit 15 is photoelectrical coupler and controlled parallel regulator, and the main device of circuit 16 is a triode.Each circuit composed as follows: circuit 11 is by socket X
1, fuse F
1, resistor R
1, R
2, capacitor C
1～C
4, varistor R
3With power supply common-mode filter L
1Form; Circuit 12 is by bridge rectifier diode V
1～V
4, filtering capacitor C
5With drain resistor R
4Form; Circuit 13 is by HF switch integrated device U
1, transition suppresses diode V
5, diode V
6, V
7, resistor R
5With capacitor C
6～C
9And switching mode power supply transformer T
1Form; Circuit 14 is by rectifier diode V
8, filter inductor L
2, capacitor C
11, C
12, C
14, C
15And drain resistor R
14Form; Circuit 15 is by photoelectrical coupler U
2, controlled parallel regulator U
3, resistor R
7～R
10, capacitor C
10, C
13Form; Circuit 16 is by triode V
9, resistor R
11～R
13, R
15, R
16With capacitor C
16Form.
According to the described output automatic voltage regulation of above-mentioned general design requirement circuit 15, by photoelectrical coupler U
2, controlled parallel regulator U
3, resistor R
7～R
10, capacitor C
10, C
13Form, its circuit element connects as follows: photoelectrical coupler U
2Pin 3 link to each other U with 4 with high-frequency inverter circuit 13
2 Pin 2 and resistor R
7An end link to each other and R
7The other end then with capacitor C
10Positive pole, resistor R
8An end, capacitor C
13An end and controlled parallel regulator U
3Pin 3 link to each other U
3Pin 2 and C
10Negative pole and output loop ground wire d
2Link to each other, and U
31 of pin and resistor R
9, R
10, R
11An end and C
13The other end link to each other U
2Pin 1 and R
8The other end and output loop rectifier diode V
8Negative terminal and filter inductor L
2An end link to each other R
9The other end and L
2The other end link to each other R
9The other end also can with V
8Negative terminal link to each other R
10The other end then with the ground wire d of output loop
2Link to each other.
According to the described input interface circuit 16 of above-mentioned general design requirement, by triode V
9, resistor R
11～R
13, R
15, R
16And capacitor C
16Form, its circuit element connects as follows: triode V
9Collector electrode and resistor R
11An end link to each other and R
11The other end then link to each other with the r point; V
9Emitter and resistor R
12An end link to each other and R
12The other end then with output loop ground wire d
2Link to each other; V
9Base stage and resistor R
13An end link to each other and R
13The other end then with resistor R
15, R
16An end, capacitor C
16Positive pole link to each other R
15The other end and C
16Negative pole and ground wire d
2Link to each other, and R
16The other end then with control voltage U
CInput K link to each other.
The general work principle of the continuous rearrangeable switch power supply of output voltage is: civil power～220V/50Hz is by the connector assembly X of circuit 11
1Input, circuit 11 is by source jack-socket X
1, overcurrent fuse F
1, the varistor R of overvoltage protection
3, current-limiting resistor R
1, R
2, power supply common mode filtering inductor L
1With HF filtering capacitor C
2～C
4Form; Circuit 12--passes through input ac power by 4 diode V
1～V
4The bridge rectifier of forming is transformed into DC power supply, C
5Be smoothing capacitor, R
4Be drain resistor; Circuit 13-high-frequency inverter circuit changes the direct voltage inversion after the rectification into high frequency electric source, U
1Be the HF switch integrated circuit, have overcurrent, overvoltage and temperature protection function, its major function is equivalent to HF switch metal-oxide-semiconductor and switching pulse EDM Generator of Adjustable Duty Ratio circuit, works with circuit 15 1, can set up output voltage and regulated output voltage U
0If U
0Former thereby when raising because of certain, then the r point voltage raises, and flows through U thereby make
3Electric current increase, promptly flow through U
2The electric current of pin 1-2 increase, thereby make U
2Output current increases, and then makes U
1The electric current of control utmost point S increase, so make U
1Control impuls account for boring ratio and reduce, thereby make T
1Output voltage descends, and makes U
0Reply original rated output voltage value.Work as U
0During decline, its process is then opposite; The control voltage U of interface circuit 16
CCome by peripheral control unit, according to U
CThe magnitude of voltage size can Linear Control switch power source output voltage U
0Interface circuit is equivalent to one and is parallel to U
3Pin 1-2 between variable resistance.Work as U
CDuring=0V, V
9End, along with input current increases and V
9Conducting gradually, at last to the saturation conduction state, this parallel resistance value this moment R no better than
11, because and R
11Compare R
12And V
9Collector electrode and the resistance value between the emitter all very little.Because the interface loop equivalent resistance is variable, so the branch pressure voltage value that r is ordered also is variable, thereby reaches output voltage U
0Linear adjustable function.Circuit 14 is the output smoothing filter; V
8Be rectifier, by capacitor C
11, C
14Form smoothing filter, by C
12, C
15With inductor L
2Form high frequency filter, resistance R
14Be drain resistor, they and capacitor C
8, C
9Acting in conjunction can make output ripple voltage be lower than 50mV.
A, basic parameter: input voltage range is 150～260V, 50Hz;
Output voltage range is that 7.2～30V 1A is adjustable continuously; External control voltage
U
C=0～5V; Output ripple voltage :≤50mV.
B, components and parts:
Resistor: R
1, R
2-5W-5.6 Ω, R
3-MYG15-471K, R
4-sa1W-560K Ω, R
5-0.5W-6.2 Ω, R
7-0.25W-510 Ω, R
8-0.25W-200 Ω, R
9-0.25W-30K Ω, R
10-0.25W-16K Ω, R
11-0.25W-2.7K Ω, R
12-0.25W-10 Ω, R
13-0.25-680K Ω, R
14-0.25W-10K Ω, R
15-0.25W-30K Ω, R
16-0.25W-1K Ω,
Capacitor: C
1, C
2, C
4-630V-10nF, C
3-630V-100nF, C
5-450V-82 μ F, C
6-50V-47 μ F, C
7, C
12, C
13, C
15-63V-100nF, C
8, C
9-1KV-2.2nF, C
10-50V-33 μ F, C
11-50V-1000 μ F, C
14-50V-100 μ F, C
16-25V-10 μ F.
Diode: V
1-V
4-1N4007, V
5-P6KE180, V
6-MUR860, V
7-1N4148, V
8-UF5401, V
9-S9013G.
Integrated circuit: U
1-TOP224Y, U
2-TLP521-1B, U
3-TL431C
Switching mode power supply transformer: T
1-TR2-03
Filter inductor: L
1-SC2-01 20mH, L
2-SC3-01 3.3 μ H.
Fuse F
1-1A, socket X
1Printed circuit board-single sided board.
Claims (2)
1, the linear continuously adjustable Switching Power Supply of a kind of output voltage; system is debug by electronic circuit and printed circuit board (PCB) thereof and forms; its electronic circuit comprises: over-voltage over-current protection and power supply common mode filtering circuit (11); bridge rectifier and smoothed filter circuit (12); high-frequency inverter circuit (13), output rectification and smoothed filter circuit (14), output automatic voltage regulation circuit (15) and input interface circuit (16); it is characterized in that described input interface circuit (16), by triode V
9, resistor R
11～R
13, R
15, R
16And capacitor C
16Form, its circuit element connects as follows: triode V
9Collector electrode and resistor R
11An end link to each other and R
11The other end then link to each other V with the r point
9Emitter and resistor R
12An end link to each other and R
12The other end then with output loop ground wire d
2Link to each other V
9Base stage and resistor R
13An end link to each other and R
13The other end then with resistor R
15, R
16An end, capacitor C
16Positive pole link to each other R
15The other end and C
16Negative pole and ground wire d
2Link to each other, and R
16The other end then with control voltage U
CInput K link to each other.
2, the linear continuously adjustable Switching Power Supply of output voltage as claimed in claim 1 is characterized in that described output automatic voltage regulation circuit (15), by photoelectrical coupler U
2, controlled parallel regulator U
3, resistor R
7～R
10, capacitor C
10, C
13Form, its circuit element connects as follows: photoelectrical coupler U
2Pin 3 be connected U with 4 with high-frequency inverter circuit (13)
2Pin 2 and resistor R
7An end link to each other and R
7The other end then with capacitor C
10Positive pole, resistor R
8An end, capacitor C
13An end and controlled parallel regulator U
3Pin 3 link to each other U
3Pin 2 and C
10Negative pole and output loop ground wire d
2Link to each other, and U
31 of pin and resistor R
9, R
10, R
11An end and C
13The other end link to each other U
2Pin 1 and R
8The other end and output loop rectifier diode V
8Negative terminal and filter inductor L
2An end link to each other R
9The other end and L
2The other end link to each other R
9The other end also can with V
8Negative terminal link to each other R
10The other end then with output loop ground wire d
2Link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99254568U CN2406412Y (en) | 1999-11-24 | 1999-11-24 | Out-put voltage linear and continuous adjustable switch power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99254568U CN2406412Y (en) | 1999-11-24 | 1999-11-24 | Out-put voltage linear and continuous adjustable switch power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2406412Y true CN2406412Y (en) | 2000-11-15 |
Family
ID=34038163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99254568U Expired - Fee Related CN2406412Y (en) | 1999-11-24 | 1999-11-24 | Out-put voltage linear and continuous adjustable switch power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2406412Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100456617C (en) * | 2005-11-11 | 2009-01-28 | 福州大学 | Single-stage two-way step down DC converter type high frequency link inverter |
| CN107565831A (en) * | 2017-09-10 | 2018-01-09 | 长沙方星腾电子科技有限公司 | A kind of current rectifying and wave filtering circuit |
| CN110048626A (en) * | 2019-05-22 | 2019-07-23 | 阳光电源股份有限公司 | Inverter ac combined floodgate common mode dash current suppressing method and its application apparatus |
| CN113824326A (en) * | 2021-09-23 | 2021-12-21 | 华东光电集成器件研究所 | Power supply circuit capable of triggering linear increase of output voltage |
-
1999
- 1999-11-24 CN CN99254568U patent/CN2406412Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100456617C (en) * | 2005-11-11 | 2009-01-28 | 福州大学 | Single-stage two-way step down DC converter type high frequency link inverter |
| CN107565831A (en) * | 2017-09-10 | 2018-01-09 | 长沙方星腾电子科技有限公司 | A kind of current rectifying and wave filtering circuit |
| CN110048626A (en) * | 2019-05-22 | 2019-07-23 | 阳光电源股份有限公司 | Inverter ac combined floodgate common mode dash current suppressing method and its application apparatus |
| CN110048626B (en) * | 2019-05-22 | 2020-08-28 | 阳光电源股份有限公司 | Inverter alternating current closing common-mode impact current suppression method and application device thereof |
| US11201537B2 (en) | 2019-05-22 | 2021-12-14 | Sungrow Power Supply Co., Ltd. | Method for suppressing common mode impulse current for inverter generated when switching on alternating current switch and application device thereof |
| CN113824326A (en) * | 2021-09-23 | 2021-12-21 | 华东光电集成器件研究所 | Power supply circuit capable of triggering linear increase of output voltage |
| CN113824326B (en) * | 2021-09-23 | 2023-08-04 | 华东光电集成器件研究所 | Power supply circuit capable of triggering output voltage to linearly increase |
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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 |