CN100461594C - Super wide range input DC power voltage stabilizing transformer - Google Patents
Super wide range input DC power voltage stabilizing transformer Download PDFInfo
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- CN100461594C CN100461594C CNB2005100190806A CN200510019080A CN100461594C CN 100461594 C CN100461594 C CN 100461594C CN B2005100190806 A CNB2005100190806 A CN B2005100190806A CN 200510019080 A CN200510019080 A CN 200510019080A CN 100461594 C CN100461594 C CN 100461594C
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Abstract
A DC / DC power voltage stabilizing inverter for super-wide input voltage consists of DC input circuit and DC output circuit of inversion and voltage stabilization. It is featured as setting real time monitoring circuit for input voltage , connecting the monitoring circuit to automatic - switching circuit and connecting control switch of automatic - switching circuit to voltage stabilizer of two loop linear low voltage difference .
Description
Technical field
The present invention relates to a kind of D.C. regulated power supply, be specifically related to a kind of DC/DC DC power voltage stabilizing transformer that adapts to the wide region input voltage.
Background technology
The operate as normal of mobile electronic device; need provide D.C. regulated power supply for it with regulated output voltage; in many comparatively special applied environments; the input voltage that usually can run into to power electronic equipment takes place in equipment operation well beyond the situation of normal ranges variation, is exactly like this as voltages that various vehicle-mounted electric power system provided such as tank, panzer, special engineered car, communication and command car, guided missile delivery car launchers.And all using computer, digital information system, charge system and various electronic equipment in the above-mentioned vehicle in a large number, in order to guarantee the operate as normal of these equipment, just must outfit the reinforcement type multipath voltage regulation power supply that the super wide range input voltage changes can be adapted to, promptly when ultralow value appears in input voltage, still stable output voltage can be provided.In addition, power supply also need to satisfy the modular requirement of small-sized light weight and under adverse circumstances the ability of reliably working, to save valuable user's space and to guarantee to equip the reliability of electronic system.
At present, numerous DC/DC DC power voltage stabilizing transformers that countries in the world produced, adaptive capacity to its input voltage variation, generally can only accomplish 1: 2, such as from 9V to 18V, from 18V to 36V, from 36V to 76V or the like, the DC/DC power module that can adapt to the relative broad range input voltage so far and appear on the market is as the product of certain company of France, though its input voltage adaptive capacity has been close to 1: 5, but can not adapt to the requirement of super wide range voltage input (from 5.85V to 40V, its input voltage adaptive capacity was near 1: 7) and plurality of voltages output.
Summary of the invention
Technical problem to be solved by this invention is to develop a kind of DC/DC DC power voltage stabilizing transformer that adapts to the wide region input voltage at the deficiency of above-mentioned prior art existence.
The present invention for the technical scheme that technical problem adopted of the above-mentioned proposition of solution is: comprise direct-flow input circuit and DC converting voltage-stabilizing output circuit, its difference is to be provided with the input voltage real-time monitoring circuit, the input voltage real-time monitoring circuit connects automatic switching circuit, the linear low-dropout regulator in the control switch of automatic switching circuit and double loop links, and is+5.85～40V via the DC input voitage of direct-flow input circuit.
Press such scheme, described direct-flow input circuit is anti-input reversal connection and spike inhibition circuit; Described DC converting voltage-stabilizing output circuit includes two-way, and one the tunnel through high frequency series connection accumulation formula switching regulator wiring low-dropout regulator, output+3.3V voltage; Another road by the linear low-dropout regulator in double loop high frequency series connection accumulation formula switching regulator and double loop output and connect, output+5V voltage, and the output that the connects while be connected output ± 12V two-way voltage with a two-way output translator.
Pressing such scheme, is+5.85～40V via the DC input voitage of input circuit, and when input voltage was+7.5～40V, the linear low-dropout regulator open circuit in double loop (not working) was by double loop high frequency series connection accumulation formula switching regulator output+5V voltage; When input voltage was+5.85～7.5V, the switching by automatic switching circuit made the linear low-dropout regulator in double loop connect input voltage, output+5V voltage, and double loop high frequency series connection accumulation formula switching regulator is not by setover simultaneously (working).
Beneficial effect of the present invention is:
1, the multiple voltage stabilizing converter technique of applied in any combination, voltage monitoring and automatic switch-over circuit have in real time been designed, guarantee that the DC/DC regulated converter can monitor input voltage, automatic switchover, segmentation work in combination in real time, solved the difficult problem of input voltage wide fluctuations fully, in the input voltage work that power supply can both be reliable and stable in 5.85 to the 40V scopes, the input voltage adaptive capacity can adapt to the requirement of super wide range voltage input near 1: 7.
2, have the plurality of voltages fan-out capability, output voltage kind+3.3V ,+5V ,+12V ,-12V, the output gross power can reach 75W.Can fully satisfy of the requirement of multiple mobile electronic device, especially the requirement in special applied environment to working power.
3, She Ji circuit can adopt standard 3U size plug-in type modular construction, and compact conformation, heat radiation well have the higher ratio of performance to price than present modular power, and possess the adaptive capacity stronger to adverse circumstances.
Description of drawings
Fig. 1 is the circuit block diagram of one embodiment of the invention.
Fig. 2 is the circuit theory diagrams of one embodiment of the invention.
Embodiment
Further specify embodiments of the invention below in conjunction with Figure of description: enter the DC converting voltage-stabilizing output circuit of converter behind anti-input reversal connection of unsettled input voltage process and the spike inhibition circuit along separate routes, prevent that input reversal connection and spike suppress circuit and suppress the first diode V by transient voltage
1Form.The DC converting voltage-stabilizing output circuit is divided into two-way, and one the tunnel through exporting stable 3.3V voltage through linear low-dropout regulator again behind the high frequency series connection accumulation formula switching regulator, and described high frequency series connection accumulation formula switching regulator is by high frequency tandem tap control chip U
5And peripheral energy storage filter circuit formation, the energy storage filter circuit comprises the 9th filter capacitor C of input
9, output the 6th diode V
6, the 3rd inductance L
3With the tenth capacitor C
10, high frequency tandem tap control chip U
5The periphery also is provided with the 8th building-out capacitor C
8, the 11 compensating resistance R
11, the 12 feedback resistance R
12The 9th filter capacitor C wherein
9With high frequency tandem tap control chip U
5Input mutually and meet the 8th building-out capacitor C
8With the 11 compensating resistance R
11High frequency tandem tap control chip U is inserted in the series connection back
5The compensation end, the 6th diode V
6Be connected to high frequency tandem tap control chip U
5Output, and with the 3rd inductance L
3With the tenth capacitor C
10The filter circuit of forming joins; Described linear low-dropout regulator is by the low pressure reduction series connection of linearity voltage stabilizing control chip U
6With the voltage stabilizing control chip U that connects with the low pressure reduction of linearity
6Output phase and the 13 load resistance R that connects
13, the 11 output filter capacitor C
11Constitute.Another road provides when input voltage is higher than 7.5V+output of 5V voltage by double loop high frequency series connection accumulation formula switching regulator, output+5V voltage provides ± output of 12V voltage after via the two-way output translator; Described double loop high frequency series connection accumulation formula switching regulator is made of two and the high frequency tandem tap control chip U1, the U2 that connect and the energy storage filter circuit of configuration thereof, and wherein the peripheral circuit of the first high frequency tandem tap control chip U1 is by the first filter capacitor C
1, the second building-out capacitor C
2, the 7th compensating resistance R
7, the 8th feedback resistance R
8And the 4th diode V
4, first inductance L
1Form the second high frequency tandem tap control chip U
2Peripheral circuit by the 5th filter capacitor C
5, the 4th building-out capacitor C
4, the 9th compensating resistance R
9, the tenth feedback resistance R
10And the 5th diode V
5, second inductance L
2Form, the delivery outlet of two chips meets the 3rd filter capacitor C altogether
3The first filter capacitor C wherein
1, the 5th filter capacitor C
5Respectively with the first high frequency tandem tap control chip U1, the second high frequency tandem tap control chip U
2Input link to each other the second building-out capacitor C
2With the 7th compensating resistance R
7Serial connection is connected in the feedback compensation terminal of the first high frequency tandem tap control chip U1 mutually, and by the 8th feedback resistance R
8With first inductance L
1Output join the output of the first high frequency tandem tap control chip U1 and the 4th diode V
4Negative electrode, first inductance L
1Input link to each other the 4th diode V
4Anode link to each other with the ground end of the first high frequency tandem tap control chip U1; The 4th building-out capacitor C
4With the 9th compensating resistance R
9Serial connection is connected in the feedback compensation terminal of the second high frequency tandem tap control chip U2 mutually, and by the tenth feedback resistance R
10With second inductance L
2Output join the output of the second high frequency tandem tap control chip U2 and the 5th diode V
5Negative electrode, second inductance L
2Input link to each other the 5th diode V
5Anode link to each other with the ground end of the second high frequency tandem tap control chip U2; First inductance L
1The output and second inductance L
2Output and connect the back and connect the 3rd filter capacitor C
3, and with+the positive output end of 5V, the 7th chip U
7Positive input terminal link to each other; Described two-way output translator is by the 7th chip U
7Be connected to the 7th chip U respectively
7The 12 filter capacitor C of two output ports
12With the 13 filter capacitor C
13Constitute output+12V and-12V voltage.The Third Road that communicates with anti-input reversal connection and spike inhibition circuit is the input voltage real-time monitoring circuit, the input voltage real-time monitoring circuit is implemented monitoring in real time and automatic switch-over circuit is implemented control input voltage, to realize variation according to input voltage, finish the automatic switchover of electric power-feeding structure by the assembled scheme of setting, when input voltage is lower than 7.5V, directly through double loop linearity low-dropout regulator output+5V voltage; Described input voltage real-time monitoring circuit is by voltage comparator N
1And the peripheral circuit composition, peripheral circuit comprises the second voltage-stabiliser tube V that stable operating voltage is provided
2, the 3rd voltage-stabiliser tube V of reference voltage is provided
3And the first current-limiting resistance R
1, the 4th current-limiting resistance R
4, second resistance R
2, the 3rd resistance R
3Two divider resistances, the 5th feedback resistance R
5, described automatic switching circuit is made of drive circuit and miniature relay J, and drive circuit comprises triode V
8With the 7th capacitor C
7, the 6th current-limiting resistance R
6, voltage comparator N wherein
1Input port and the 4th current-limiting resistance R
4With the 3rd voltage-stabiliser tube V
3The end that joins links to each other voltage comparator N
1Another input port and second resistance R
2With the 3rd resistance R
3Link joins, and second resistance R
2With the 3rd resistance R
3The two ends that join and the second voltage-stabiliser tube V
2The phase cross-over connection, voltage comparator N
1Output termination the 5th feedback resistance R
5, the 7th capacitor C
7With the 6th current-limiting resistance R
6Voltage comparator N
1Two power ports and the second voltage-stabiliser tube V
2Two ends join, the 6th current-limiting resistance R
6With triode V
8Base stage connect miniature relay J and the 7th diode V
7Be serially connected with triode V mutually and after connecing
8Collector electrode, the contact of miniature relay is serially connected with the 3rd voltage stabilizing control chip U
3Input.Automatic switch-over circuit is connected the linear low-dropout regulator in double loop when input voltage is ultralow, the linear low-dropout regulator in double loop is by the low pressure reduction series connection of two linearities voltage stabilizing control chip U
3, U
4And connect and form, its input is connected to the 6th shared capacitor C
6, double loop linear low-dropout regulator output+5V voltage, and join with the input port of two-way output translator.
Two kinds of high-performance low price integrated chips of the foregoing description employing add the peripheral circuit composition of optimal design, U
1, U
2, U
5Be a kind of high frequency tandem tap control chip MC33167, its switch operating frequency is 72KHZ, and the input voltage allowed band is 7.5V～40V, and minimum output burning voltage is U
In-2V, its operating ambient temperature are-40 ℃～+ 85 ℃, and storage temperature is-65 ℃～+ 150 ℃.Designed peripheral circuits such as the energy storage filtering optimized and voltage detecting feedback, constituted high frequency serially connected switching voltage regulator unit efficiently, and guaranteed that it reliablely and stablely works from 7.5V at input voltage in the 40V scope.Adopted by U
1, U
2The double loop of forming PD scheme in parallel is to enlarge the ability of power output.For U
5The loop, the linear low-dropout regulator of then directly having connected guarantees that input voltage changes (the stable 3.3V voltage supply load of output during 5.85V～40V) in gamut.U in the circuit
3, U
4, U
6Be low pressure reduction series line voltage stabilizing control chip (U
3, U
4Be MIC29500-5.0BT, U
6Be MIC29500-3.3BT), its operating temperature range (junction temperature) is-40 ℃～125 ℃.Designed peripheral circuit and constituted low pressure difference linearity series connection regulated converter, the minimum differntial pressure that this converter is kept voltage stabilizing output is 0.4V, and its maximum input voltage is 26V.By voltage comparator N
1Formed input voltage monitoring and automatic switch-over circuit with miniature relay J, when input voltage during at 7.5V～40V scope, J disconnects, U
1, U
2, U
5, U
6, U
7Work, U
3, U
4Be in open circuit (dormancy) state, export four road stable voltages.When input voltage reduces, when entering 5.85V～7.5V scope, the J closure, input voltage is directly by the linear low-dropout regulator U in double loop
3, U
4Stable 5V voltage is provided, and double loop high frequency tandem tap U
1, U
2Because input voltage is lower than it and keeps normal range of operation, its output voltage reduces and by U
3, U
4Output voltage biasing because U
3, U
4, U
5, U
6, U
7Work guarantees stable four road voltages output equally.Like this, realized that the DC/DC regulated converter (from the adaptive capacity of 5.85V～40V), has guaranteed stability and the reliability of power work to the super wide range change in voltage.V
1For transient voltage suppresses diode, its effect is that the input voltage spike is implemented to suppress and prevent the input voltage error-polarity connection.
The present invention can carry out the Design of Reinforcement of system, converter module adopts standard 3U inserter structure, and casing adopts the whole cut of aluminium alloy, electric conductive oxidation technology, and heater members is close to casing, with the heat radiation of secondary conduction pattern, this casing structure heat radiation and shield effectiveness are good.The requirement of small modular and inserter structure are left the minimum space of components and parts for, for this reason, designed two-layer double-sided printed-circuit board components and parts mount scheme, adopt highly reliable connector interconnected between two plates, so both improved packaging density, be convenient to debugging again and safeguard, also strengthened structural strength and improved the tolerance performance of complete machine impact, vibration and the adaptive capacity of adverse circumstances.
Applied in any combination high frequency tandem tap voltage stabilizing converter technique of the present invention and linear low pressure reduction voltage stabilizing control technology, adopt the integrated control chip of high-performance low price, for high frequency tandem switching circuit has designed the complete peripheral circuit of energy storage efficiently, filter circuit and optimization; Designed double loop PD circuit, can expand power flexibly according to user's request; For linear low pressure difference circuit has designed suitable offset peripheral circuit; The optimization of the integrated control chip of high-performance low price is used, and except that the adaptive capacity that novel multipath voltage regulation converter is changed input voltage is widened greatly, its cost is significantly reduced, and has greatly improved the cost performance of stabilized voltage power supply.
Claims (8)
1. DC power voltage stabilizing transformer, comprise direct-flow input circuit and DC converting voltage-stabilizing output circuit, it is characterized in that being provided with the input voltage real-time monitoring circuit, the input voltage real-time monitoring circuit connects automatic switching circuit, the linear low-dropout regulator in the control switch of automatic switching circuit and double loop links, and is+5.85～40V via the DC input voitage of direct-flow input circuit.
2. DC power voltage stabilizing transformer according to claim 1 is characterized in that described direct-flow input circuit is anti-input reversal connection and spike inhibition circuit.
3. DC power voltage stabilizing transformer according to claim 1 and 2 is characterized in that described DC converting voltage-stabilizing output circuit includes two-way, and one the tunnel through high frequency series connection accumulation formula switching regulator wiring low-dropout regulator, output+3.3V voltage; Another road by the linear low-dropout regulator in double loop high frequency series connection accumulation formula switching regulator and double loop output and connect, output+5V voltage, and the output that the connects while be connected output ± 12V two-way voltage with a two-way output translator input.
4. DC power voltage stabilizing transformer according to claim 3 is characterized in that when DC input voitage is+7.5～40V, and the linear low-dropout regulator open circuit in double loop is by double loop high frequency series connection accumulation formula switching regulator output+5V voltage; When DC input voitage was+5.85～7.5V, the switching by automatic switching circuit made the linear low-dropout regulator in double loop connect input voltage, output+5V voltage, and double loop high frequency series connection accumulation formula switching regulator is setovered simultaneously.
5. DC power voltage stabilizing transformer according to claim 3 is characterized in that described high frequency series connection accumulation formula switching regulator is by high frequency tandem tap control chip (U
5) and peripheral energy storage filter circuit formation, the energy storage filter circuit comprises the 9th filter capacitor (C of input
9), the 6th diode (V of output
6), the 3rd inductance (L
3) and the tenth electric capacity (C
10), high frequency tandem tap control chip (U
5) periphery also is provided with the 8th building-out capacitor (C
8), the 11 compensating resistance (R
11), the 12 feedback resistance (R
12); The 9th filter capacitor (C wherein
9) and high frequency tandem tap control chip (U
5) input mutually and meet the 8th building-out capacitor (C
8) and the 11 compensating resistance (R
11) series connection back access high frequency tandem tap control chip (U
5) the compensation end, the 6th diode (V
6) be connected to high frequency tandem tap control chip (U
5) output, and with the 3rd inductance (L
3) and the tenth electric capacity (C
10) filter circuit formed joins; Described linear low-dropout regulator is by the low pressure reduction series connection of linearity voltage stabilizing control chip (U
6) and the voltage stabilizing control chip (U that connects with the low pressure reduction of linearity
6) output mutually and the 13 load resistance (R that connects
13), the 11 output filter capacitor (C
11) constitute.
6. DC power voltage stabilizing transformer according to claim 3, it is characterized in that described double loop high frequency series connection accumulation formula switching regulator by two and high frequency tandem tap control chip (U1, U2) that connects and the energy storage filter circuit formation that disposes thereof, wherein the peripheral circuit of the first high frequency tandem tap control chip (U1) is by the first filter capacitor (C
1), the second building-out capacitor (C
2), the 7th compensating resistance (R
7), the 8th feedback resistance (R
8) and the 4th diode (V
4), the first inductance (L
1) form the second high frequency tandem tap control chip (U
2) peripheral circuit by the 5th filter capacitor (C
5), the 4th building-out capacitor (C
4), the 9th compensating resistance (R
9), the tenth feedback resistance (R
10) and the 5th diode (V
5), the second inductance (L
2) form, the delivery outlet of two chips meets the 3rd filter capacitor (C altogether
3); First filter capacitor (the C wherein
1), the 5th filter capacitor (C
5) respectively with the first high frequency tandem tap control chip (U1), the second high frequency tandem tap control chip (U
2) input link to each other the second building-out capacitor (C
2) and the 7th compensating resistance (R
7) be connected in series the feedback compensation terminal that is connected in the first high frequency tandem tap control chip (U1) mutually, and by the 8th feedback resistance (R
8) and the first inductance (L
1) output join the output of the first high frequency tandem tap control chip (U1) and the 4th diode (V
4) negative electrode, the first inductance (L
1) input link to each other the 4th diode (V
4) anode link to each other with the ground end of the first high frequency tandem tap control chip (U1); The 4th building-out capacitor (C
4) and the 9th compensating resistance (R
9) be connected in series the feedback compensation terminal that is connected in the second high frequency tandem tap control chip (U2) mutually, and by the tenth feedback resistance (R
10) and the second inductance (L
2) output join the output of the second high frequency tandem tap control chip (U2) and the 5th diode (V
5) negative electrode, the second inductance (L
2) input link to each other the 5th diode (V
5) anode link to each other with the ground end of the second high frequency tandem tap control chip (U2); First inductance (the L
1) the output and the second inductance (L
2) output and connect the back and connect the 3rd filter capacitor (C
3), and with+the positive output end of 5V, the 7th chip (U
7) positive input terminal link to each other; Described two-way output translator is by the 7th chip (U
7) and be connected to the 7th chip (U respectively
7) the 12 filter capacitor (C of two output ports
12) and the 13 filter capacitor (C
13) constitute output+12V and-12V voltage.
7. DC power voltage stabilizing transformer according to claim 1 and 2 is characterized in that described input voltage real-time monitoring circuit is by voltage comparator (N
1) and the peripheral circuit composition, peripheral circuit comprises the second voltage-stabiliser tube (V that stable operating voltage is provided
2), the 3rd voltage-stabiliser tube (V of reference voltage is provided
3) and the first current-limiting resistance (R
1), the 4th current-limiting resistance (R
4), the second resistance (R
2), the 3rd resistance (R
3) two divider resistances, the 5th feedback resistance (R
5), described automatic switching circuit is made of drive circuit and miniature relay (J), and drive circuit comprises triode (V
8) and the 7th electric capacity (C
7), the 6th current-limiting resistance (R
6), voltage comparator (N wherein
1) input port and the 4th current-limiting resistance (R
4) and the 3rd voltage-stabiliser tube (V
3) joining to holding links to each other voltage comparator (N
1) another input port and the second resistance (R
2) and the 3rd resistance (R
3) link joins, and the second resistance (R
2) and the 3rd resistance (R
3) two ends and the second voltage-stabiliser tube (V that join
2) the phase cross-over connection, voltage comparator (N
1) output termination the 5th feedback resistance (R
5), the 7th electric capacity (C
7) and the 6th current-limiting resistance (R
6); Voltage comparator (N
1) two power ports and the second voltage-stabiliser tube (V
2) two ends join the 6th current-limiting resistance (R
6) and triode (V
8) base stage connect miniature relay (J) and the 7th diode (V
7) be serially connected with triode (V mutually and after connecing
8) collector electrode, the contact of miniature relay is serially connected with the 3rd voltage stabilizing control chip (U
3) input.
8. DC power voltage stabilizing transformer according to claim 3 is characterized in that the linear low-dropout regulator in double loop is by the 3rd voltage stabilizing control chip (U
3) and the 4th voltage stabilizing control chip (U
4) two pieces low pressure reduction series connection voltage stabilizing control chips of linearity and connecing form, its input is connected to the 6th shared electric capacity (C
6), double loop linear low-dropout regulator output+5V voltage, and join with the input of two-way output translator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100190806A CN100461594C (en) | 2005-07-12 | 2005-07-12 | Super wide range input DC power voltage stabilizing transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100190806A CN100461594C (en) | 2005-07-12 | 2005-07-12 | Super wide range input DC power voltage stabilizing transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1725611A CN1725611A (en) | 2006-01-25 |
| CN100461594C true CN100461594C (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100190806A Expired - Fee Related CN100461594C (en) | 2005-07-12 | 2005-07-12 | Super wide range input DC power voltage stabilizing transformer |
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| CN (1) | CN100461594C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5247240B2 (en) * | 2008-05-22 | 2013-07-24 | キヤノン株式会社 | Integrated circuit, electronic device equipped with integrated circuit |
| CN101943938B (en) * | 2009-07-08 | 2012-07-25 | 新唐科技股份有限公司 | Power supply control device and system using same |
| CN103135075B (en) * | 2011-11-22 | 2016-01-13 | 海洋王照明科技股份有限公司 | Light source ages experiment monitoring circuit |
| US9473089B2 (en) * | 2014-05-08 | 2016-10-18 | Mediatek Inc. | Hybrid power module |
| CN104393753A (en) * | 2014-11-26 | 2015-03-04 | 广西大学 | Multi-output voltage power circuit |
| CN105141124B (en) * | 2015-09-18 | 2017-10-31 | 北京航空航天大学 | A kind of power module of industrial robot |
| CN108054915A (en) * | 2017-12-19 | 2018-05-18 | 北京卫星制造厂 | A kind of voltage stabilizing power supplying circuit of Width funtion output |
| CN108536209B (en) * | 2018-06-08 | 2023-12-22 | 洛阳嘉盛电源科技有限公司 | Wide-range linear voltage stabilizing circuit |
| CN108767884A (en) * | 2018-07-20 | 2018-11-06 | 桑德智慧能源有限公司 | DC voltage-stabilizing control method and system |
| CN114142721A (en) * | 2021-10-28 | 2022-03-04 | 南京爱奇艺智能科技有限公司 | VR controller power processing apparatus, electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073019A (en) * | 1991-12-02 | 1993-06-09 | 徐贞贞 | Linear voltage regulator |
| US5859756A (en) * | 1994-02-10 | 1999-01-12 | Pressman; Stanton L. | Automatic power line monitor and controller system |
| CN1578084A (en) * | 2003-07-11 | 2005-02-09 | 精工电子有限公司 | Semiconductor device including dc-dc converter control circuit |
-
2005
- 2005-07-12 CN CNB2005100190806A patent/CN100461594C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073019A (en) * | 1991-12-02 | 1993-06-09 | 徐贞贞 | Linear voltage regulator |
| US5859756A (en) * | 1994-02-10 | 1999-01-12 | Pressman; Stanton L. | Automatic power line monitor and controller system |
| CN1578084A (en) * | 2003-07-11 | 2005-02-09 | 精工电子有限公司 | Semiconductor device including dc-dc converter control circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1725611A (en) | 2006-01-25 |
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