CN2468084Y - Voltage stabilizing module - Google Patents
Voltage stabilizing module Download PDFInfo
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- CN2468084Y CN2468084Y CN 01207564 CN01207564U CN2468084Y CN 2468084 Y CN2468084 Y CN 2468084Y CN 01207564 CN01207564 CN 01207564 CN 01207564 U CN01207564 U CN 01207564U CN 2468084 Y CN2468084 Y CN 2468084Y
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- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 25
- 238000005070 sampling Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 9
- 230000033228 biological regulation Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 238000006085 Schmidt reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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Abstract
The utility model discloses a voltage stabilizing module capable of organically combining stabilized voltage values of output voltage, voltage samples, pulse width modulation and a control-driven circuit together. The utility model provides a very simple and practical pulse width modulation circuit. Moreover, the voltage stabilizing module is composed of general-purpose components with very low costs on the realization of the particular circuits. Therefore, the voltage stabilizing module has the advantages of simple circuit construction, easy miniaturization realization, easy mass production and low cost. Compared with integrated chips with same functions in markets, the utility model can reduce 50 percents of the cost.
Description
The utility model relates to a kind of DC voltage-stabilizing output unit, especially a kind of Voltage stabilizing module.
At present, normally used Voltage stabilizing module, the circuit theory that it utilized is roughly the same, generally all adopt input filter circuit, DC converter circuit, current rectifying and wave filtering circuit to be connected with DC voltage-stabilizing output circuit, the backfeed loop that utilizes voltage or current sampling, width modulation and control Driver Circuit to form simultaneously connects DC voltage-stabilizing output circuit and DC converter circuit.But, on concrete circuit implementation method, exist very big difference.Two class ways are arranged usually, and a kind of is to adopt integrated circuit to realize, another kind of method is that the complicated circuit that utilizes discrete component to form is realized.But the shortcoming of preceding a kind of method is the price height of used integrated circuit (IC) chip, causes the raising of module cost, and the manufacturing process complexity of integrated circuit (IC) chip itself, therefore supplies source of goods instability, and the batch process of Voltage stabilizing module is had adverse effect.The shortcoming of a kind of method in back is the circuit of forming with discrete component, general circuit structure is more complicated all, because the consistance of discrete component parameter is relatively poor, may cause the job insecurity of entire circuit, and the device that uses is more, cause the volume of module to increase, can not satisfy the request for utilization of some special process.
It is simple, with low cost and can realize the Voltage stabilizing module of miniaturization that the purpose of this utility model provides a kind of circuit structure.
The technical solution of the utility model is: a kind of Voltage stabilizing module, comprise the DC converter circuit, current rectifying and wave filtering circuit, DC voltage-stabilizing output circuit and voltage sampling, width modulation and control Driver Circuit, the DC voltage of input is transformed to high frequency square wave through the DC converter circuit, pass through current rectifying and wave filtering circuit again, the DC voltage-stabilizing output circuit output dc voltage, through voltage sampling, the dutycycle of power switch pipe in width modulation and the control Driver Circuit control change device circuit, obtain stable VD, it is characterized in that described voltage sampling, width modulation and control Driver Circuit, by triode, resistance, the CMOS reverser of electric capacity and Schmidt's input is formed, the base stage of triode is connected between the resistance 16 and stabilivolt D2 of DC voltage-stabilizing output circuit, the emitter of triode is connected in the positive input terminal of DC voltage-stabilizing output circuit by resistance R 5, the collector of triode is by two resistance in series R2, R3 connects the negative input end of DC input voitage port, resistance R 3 is in parallel with an electric capacity, an end is connected resistance R 2 after the CMOS reverser U1-A parallel connection of resistance R 4 and Schmidt's input, between the R3, the other end connects the input end of the CMOS reverser U1-B of Schmidt's input, the output terminal of U1-B is connected the CMOS reverser U1-C of four Schmidt's inputs, U1-D, the input end of the parallel circuit that U1-E and U1-F form, the output terminal of this parallel circuit connects the DC converter circuit; Described direct current regulation circuit is composed in series by resistance R 6 and stabilivolt D2, is used for producing VD, and resistance R 6 connects the positive pole of voltage stabilizing dc output end mouth, and stabilivolt D2 connects the negative pole of voltage stabilizing tributary output port.Triode in described voltage sampling, width modulation and the control Driver Circuit is the PNP low-power transistor.
Effect of the present utility model is: because voltage stabilizing value, voltage sampling, width modulation and control Driver Circuit that Voltage stabilizing module will output voltage are organically in conjunction with together, it is a kind of very simple, practical pulse-width modulation circuit, and in the realization of physical circuit, all adopt the very low general-purpose device of cost to form, therefore, the Voltage stabilizing module circuit structure is simple, realizes miniaturization easily, be easy to produce in batches, cost reduces, and compares with the integrated chip of market identical function, and cost reduces by 50%.
Below in conjunction with drawings and Examples the utility model is described further.
Fig. 1 is a structure principle chart of the present utility model;
Fig. 2 is a circuit detail drawing of the present utility model.
Among Fig. 1, Voltage stabilizing module DC input voitage port one, connection input filter circuit A1, input filter circuit A1 connects DC converter circuit A2, DC converter circuit A2 connects current rectifying and wave filtering circuit A3, current rectifying and wave filtering circuit A3 connects DC voltage-stabilizing output circuit A4, DC voltage-stabilizing output circuit A4 connects voltage stabilizing dc output end mouth 2, utilizes the backfeed loop of being made up of voltage sampling, width modulation and control Driver Circuit A5 to connect DC voltage-stabilizing output circuit A4 and DC converter circuit A2 simultaneously.
Among Fig. 2, VIN+, VIN-are the DC input voitage port, and the parallel circuit of capacitor C 1, C2 is formed input filter circuit.Power switch pipe Q1, resistance R 1, stabilivolt D1 and capacitor C 3 constitute decompression voltage regulator, Q1 is the VMOS power switch pipe, resistance R 1 and stabilivolt D1 series connection back are in parallel with capacitor C 2, the B end of Q1 is connected between resistance R 1 and the stabilivolt D1, the E end of Q1 connects power supply VCC, capacitor C 3 connects E end and the VIN-of Q1, the C termination VIN+ of Q1.Voltage sampling, width modulation and control Driver Circuit, by triode Q2, resistance R 2, R3, R4, R5, capacitor C 4 and model is that CMOS reverser U1-A, U1-B, U1-C, U1-D, U1-E, the U1-F of the Schmidt input of 74ACT14 forms, Q2 is the PNP low-power transistor, its model is MMBT3906, the base stage B of triode Q2 is connected between the resistance R 6 and stabilivolt D2 of tributary voltage-stabilizing output circuit, the emitter E of triode Q2 is connected in the anodal VIN+ of DC voltage-stabilizing output circuit by resistance R 5, and the collector C of triode Q2 is by two series connection R
2, R
3Resistance connects the negative input end VIN-of DC input voitage port, and resistance R 3 is in parallel with capacitor C 4, resistance R
4And an end is connected between resistance R 2, the R3 after the CMOS reverser U1-A parallel connection of Schmidt's input, the other end connects the input end of the CMOS reverser U1-B of Schmidt's input, the output terminal of U1-B is connected the input end of the parallel circuit that CMOS reverser U1-C, U1-D, U1-E, the U1-F of four Schmidts input form, and the output terminal of the parallel circuit that the CMOS reverser of Schmidt's input is formed connects DC converter circuit Q3; Described direct current regulation circuit is composed in series by resistance R 6 and stabilivolt D2, is used for producing VD, and resistance R 6 meets the anodal VIN+ of voltage stabilizing dc output end mouth, and stabilivolt D2 meets the GND of voltage stabilizing tributary output port.Current rectifying and wave filtering circuit is made up of diode D3, capacitor C 5 and inductance L 1, diode D3 one termination VIN+, another termination Q3, inductance L 1 one termination Q3, another termination GND, capacitor C 5 one termination VIN+, another termination GND.
Principle of work of the present utility model is: input direct voltage filtering is after DC converter is transformed to the high frequency square wave of hundreds of Khz, again through rectifier filter circuit, DC voltage-stabilizing output circuit output dc voltage, the dutycycle of power switch pipe obtains stable VD in voltage sampling, width modulation and driving circuit control change device.When the voltage of output became big, it is big that sampled voltage becomes, the V of triode Q2
EBDiminish, the collector output current of Q2 diminishes, and makes that by resistance R 2, R3 and R4 the velocity of discharge of capacitor C 4 is slack-off, the elongated effect of the time of capacitor C 4 two ends high level through the CMOS reverser, the closing time of switching tube Q3 is elongated, and promptly dutycycle diminishes, and output voltage diminishes.Otherwise, when output voltage decreases the time, it is big that output voltage will become.Since Voltage stabilizing module will output voltage voltage stabilizing value, voltage sampling, width modulation and control Driver Circuit organically in conjunction with together, it is a kind of very simple, practical pulse-width modulation circuit, and in the realization of physical circuit, all adopting the very low general-purpose device of cost to form, this makes that the batch process of this Voltage stabilizing module is very feasible.
Claims (2)
1, a kind of Voltage stabilizing module, comprise the DC converter circuit, current rectifying and wave filtering circuit, DC voltage-stabilizing output circuit and voltage sampling, width modulation and control Driver Circuit, the DC voltage of input is transformed to high frequency square wave through the DC converter circuit, pass through current rectifying and wave filtering circuit again, the DC voltage-stabilizing output circuit output dc voltage, through voltage sampling, the dutycycle of power switch pipe in width modulation and the control Driver Circuit control change device circuit, obtain stable VD, it is characterized in that (1) described voltage sampling, width modulation and control Driver Circuit, by triode, resistance, the CMOS reverser of electric capacity and Schmidt's input is formed, the base stage of triode is connected between the resistance R 6 and stabilivolt D2 of DC voltage-stabilizing output circuit, the emitter of triode is connected in the positive input terminal of DC voltage-stabilizing output circuit by resistance R 5, the collector of triode is by two resistance in series R2, R3 connects the negative input end of DC input voitage port, resistance R 3 is in parallel with an electric capacity, an end is connected resistance R 2 after the CMOS reverser U1-A parallel connection of resistance R 4 and Schmidt's input, between the R3, the other end connects the input end of the CMOS reverser U1-B of Schmidt's input, the output terminal of U1-B is connected the CMOS reverser U1-C of four Schmidt's inputs, U1-D, the input end of the parallel circuit that U1-E and U1-F form, the output terminal of this parallel circuit connects the DC converter circuit; (2) described direct current regulation circuit is composed in series by resistance R 6 and stabilivolt D2, is used for producing VD, and resistance R 6 connects the positive pole of voltage stabilizing dc output end mouth, and stabilivolt D2 connects the negative pole of voltage stabilizing tributary output port.
2, DC voltage-stabilizing module according to claim 1 is characterized in that the triode in described voltage sampling, width modulation and the control Driver Circuit is the PNP low-power transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01207564 CN2468084Y (en) | 2001-03-20 | 2001-03-20 | Voltage stabilizing module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01207564 CN2468084Y (en) | 2001-03-20 | 2001-03-20 | Voltage stabilizing module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2468084Y true CN2468084Y (en) | 2001-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01207564 Expired - Lifetime CN2468084Y (en) | 2001-03-20 | 2001-03-20 | Voltage stabilizing module |
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| Country | Link |
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| CN (1) | CN2468084Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102047523A (en) * | 2008-05-28 | 2011-05-04 | 惠普开发有限公司 | Impedance correction |
| CN101868082B (en) * | 2009-04-15 | 2013-04-17 | 海洋王照明科技股份有限公司 | Lamp brightness control circuit |
| CN105392238A (en) * | 2015-12-23 | 2016-03-09 | 成都雷纳斯科技有限公司 | Multifunctional control system used for LED (Light Emitting Diode) lamp |
-
2001
- 2001-03-20 CN CN 01207564 patent/CN2468084Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102047523A (en) * | 2008-05-28 | 2011-05-04 | 惠普开发有限公司 | Impedance correction |
| CN102047523B (en) * | 2008-05-28 | 2014-06-11 | 惠普开发有限公司 | Impedance correction |
| US8797017B2 (en) | 2008-05-28 | 2014-08-05 | Hewlett-Packard Development Company, L.P. | Impedance Stabilization |
| CN101868082B (en) * | 2009-04-15 | 2013-04-17 | 海洋王照明科技股份有限公司 | Lamp brightness control circuit |
| CN105392238A (en) * | 2015-12-23 | 2016-03-09 | 成都雷纳斯科技有限公司 | Multifunctional control system used for LED (Light Emitting Diode) lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING HELISHI SYSTEM ENGINEERING CORPORATION Free format text: FORMER NAME OR ADDRESS: BEIJING HELISHI SYSTEM ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Mi Hongbo, 10 building road, Xisanqi, Beijing, China, 100096 Patentee after: Beijing HollySys System Engineering Co., Ltd. Address before: Mi Hongbo, 10 building road, Xisanqi, Beijing, China, 100096 Patentee before: Beijing HollySys System Engineering Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110320 Granted publication date: 20011226 |