CN104184332A - Wide-input stabilized-voltage-output Royal circuit with feedback loop - Google Patents
Wide-input stabilized-voltage-output Royal circuit with feedback loop Download PDFInfo
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- CN104184332A CN104184332A CN201410459371.6A CN201410459371A CN104184332A CN 104184332 A CN104184332 A CN 104184332A CN 201410459371 A CN201410459371 A CN 201410459371A CN 104184332 A CN104184332 A CN 104184332A
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Abstract
The invention discloses a wide-input stabilized-voltage-output Royal circuit with a feedback loop. The wide-input stabilized-voltage-output Royal circuit comprises coils and germinate transistors composed of a first NPN triode and a second NPN triode. The collectors of the germinate transistors are connected to one three-terminal positions of the primary portions of the coils, and the bases of the germinate transistors are connected to the other three-terminal positions of the primary portions of the coils respectively. The middle terminals of the primary portions of the coils are connected with an RC parallel circuit, and the secondary portions of the coils are connected with an output terminal. The emitters of the germinate transistors are connected to a collector of a third NPN triode, the emitter of the third NPN triode is grounded, and the base of the third NPN triode is connected to an input terminal through a third resistor and a second resistor. The output terminal of an optical coupler is electrically connected to the portion between the third resistor and the second resistor. The P pole of the input terminal of the optical coupler is connected to the third terminal of the secondary coil through a fourth resistor. According to the wide-input stabilized-voltage-output Royal circuit with the feedback loop, the feedback loop is additionally arranged on an original Royal circuit, and an original open-loop circuit is changed into a closed-loop circuit, so that it is achieved that when input voltages change at the ratio of 2:1, output voltages are stably output.
Description
Technical field
The present invention is specifically related to a kind of wide input voltage stabilizing and exports the Royal circuit with feedback loop.
Background technology
Existing Royal circuit, formed by a coil, a NPN triode and the 2nd NPN triode to pipe; The described collector electrode to pipe is connected to three end places of coil primary, and its base stage is connected respectively to another three ends place of coil primary; The intermediate ends of coil primary is connected with RC parallel circuits; The secondary connection output of described coil; This type of Royal circuit can not form a closed loop well, can not carry out the feedback of input and output, and therefore difference is brought in adjusting input by output.In the time that circuit reaches voltage 2:1 variation, circuit can not normally be worked well.
Summary of the invention
(1) technical problem that will solve
For addressing the above problem, the present invention proposes a kind of wide input voltage stabilizing and export the Royal circuit with feedback loop; Be intended to solve the problem of stablizing output by feedback.
(2) technical scheme
The Royal circuit with feedback loop is exported in wide input voltage stabilizing of the present invention, comprise a pair of three ends inputs and the output of one or three ends coil, a NPN triode and the 2nd NPN triode composition to managing; The described collector electrode to pipe is connected to three end places of coil primary, and its base stage is connected respectively to another three ends place of coil primary; The intermediate ends of described coil primary is connected with RC parallel circuits; The secondary connection output of described coil; The described emitter to pipe is connected to the collector electrode of the 3rd NPN triode, its grounded emitter, and base stage is connected to input by the 3rd resistance and the second resistance; Between described the 3rd resistance and the second resistance, be also electrically connected to optical coupler output; The P utmost point of described optical coupler input is connected to secondary coil the 3rd end by the 4th resistance; Its N utmost point is connected with three end adjustable shunt reference sources; Described adjustable side is connected to the 6th resistance and the 7th resistance series connection place.
Further, between described the 6th resistance and the 7th resistance, be also in series with RC circuit.
Further, described RC parallel circuits is made up of the first resistance and the second Capacitance parallel connection.
Further, described coil secondary output end is in series with the first diode.
Further, between described the 4th resistance and secondary coil, be also serially connected with the second diode.
Further, described optical coupler is TLP181 optical coupler.
(3) beneficial effect
The present invention compared with prior art, it has following beneficial effect: the Royal circuit with feedback loop is exported in wide input voltage stabilizing of the present invention, on the basis of original Royal circuit, increase by a feedback loop, make original open loop circuit become closed loop circuit, thereby while reaching input voltage 2:1 variation, output voltage stabilization output.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, does not form inappropriate limitation of the present invention, in the accompanying drawings:
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
The Royal circuit with feedback loop is exported in wide input voltage stabilizing as shown in Figure 1, comprise coil T1, a NPN triode Q1 of a pair of three ends inputs and the output of one or three ends and the 2nd NPN triode Q2 composition to managing; The described collector electrode to pipe is connected to three end places of coil primary, and its base stage is connected respectively to another three ends place of coil primary, and feed back as coil at this three ends place; The intermediate ends of described coil primary (coil feedback) is connected with RC parallel circuits; The secondary connection output of described coil; The described emitter to pipe is connected to the collector electrode of the 3rd NPN triode Q3, its grounded emitter, and base stage is connected to input by the 3rd resistance R 3 and the second resistance R 2; Between described the 3rd resistance R 3 and the second resistance R 2, be also electrically connected to optical coupler U2 output; The P utmost point of described optical coupler U2 input is connected to secondary coil the 3rd end by the 4th resistance R 4; Its N utmost point is connected with three end adjustable shunt reference source U1; Described adjustable side is connected to the 6th resistance R 6 and the 7th resistance R 7 series connection place, and wherein optical coupler U2 is TLP181 optical coupler.
Wherein, between described the 6th resistance R 6 and the 7th resistance R 7, be also in series with RC circuit; Described RC parallel circuits is composed in parallel by the first resistance R 1 and the second capacitor C 2; Described coil secondary output end is in series with the first diode D1; Between described the 4th resistance R 4 and secondary coil, be also serially connected with the second diode D2.
The Royal circuit with feedback loop is exported in wide input voltage stabilizing of the present invention, on the basis of original Royal circuit, increases by a feedback loop, makes original open loop circuit become closed loop circuit, thereby while reaching input voltage 2:1 variation, output voltage stabilization output.
Embodiment recited above is described the preferred embodiment of the present invention, not the spirit and scope of the present invention is limited.Do not departing under the prerequisite of design concept of the present invention; various modification and improvement that this area ordinary person makes technical scheme of the present invention; all should drop into protection scope of the present invention, the technology contents of request protection of the present invention, has all been documented in claims.
Claims (6)
1. the Royal circuit with feedback loop is exported in wide input voltage stabilizing, comprise a pair of three ends inputs and the output of one or three ends coil, a NPN triode and the 2nd NPN triode composition to managing; The described collector electrode to pipe is connected to three end places of coil primary, and its base stage is connected respectively to another three ends place of coil primary; The intermediate ends of described coil primary is connected with RC parallel circuits; The secondary connection output of described coil; It is characterized in that: the described emitter to pipe is connected to the collector electrode of the 3rd NPN triode, its grounded emitter, base stage is connected to input by the 3rd resistance and the second resistance; Between described the 3rd resistance and the second resistance, be also electrically connected to optical coupler output; The P utmost point of described optical coupler input is connected to secondary coil the 3rd end by the 4th resistance; Its N utmost point is connected with three end adjustable shunt reference sources; Described adjustable side is connected to the 6th resistance and the 7th resistance series connection place.
2. the Royal circuit with feedback loop is exported in wide input voltage stabilizing according to claim 1, it is characterized in that: between described the 6th resistance and the 7th resistance, be also in series with RC circuit.
3. the Royal circuit with feedback loop is exported in wide input voltage stabilizing according to claim 1, it is characterized in that: described RC parallel circuits is made up of the first resistance and the second Capacitance parallel connection.
4. the Royal circuit with feedback loop is exported in wide input voltage stabilizing according to claim 1, it is characterized in that: described coil secondary output end is in series with the first diode.
5. the Royal circuit with feedback loop is exported in wide input voltage stabilizing according to claim 1, it is characterized in that: between described the 4th resistance and secondary coil, be also serially connected with the second diode.
6. the Royal circuit with feedback loop is exported in wide input voltage stabilizing according to claim 1, it is characterized in that: described optical coupler is TLP181 optical coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459371.6A CN104184332A (en) | 2014-09-10 | 2014-09-10 | Wide-input stabilized-voltage-output Royal circuit with feedback loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459371.6A CN104184332A (en) | 2014-09-10 | 2014-09-10 | Wide-input stabilized-voltage-output Royal circuit with feedback loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104184332A true CN104184332A (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410459371.6A Pending CN104184332A (en) | 2014-09-10 | 2014-09-10 | Wide-input stabilized-voltage-output Royal circuit with feedback loop |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0945489A (en) * | 1995-08-03 | 1997-02-14 | Matsushita Electric Ind Co Ltd | Inverter circuit for fluorescent lamp |
| US20070103093A1 (en) * | 2005-08-02 | 2007-05-10 | Texas Instruments Incorporated | Systems and methods for backlight driving |
| CN2924914Y (en) * | 2006-05-26 | 2007-07-18 | 广州金升阳科技有限公司 | Soft start circuit for micro-power power module |
| US20070182342A1 (en) * | 2005-08-02 | 2007-08-09 | Texas Instruments Incorporated | Lcd backlight driver |
| KR20080004615U (en) * | 2007-04-10 | 2008-10-15 | 이철의 | Protection circuit for power supply adopting Royer converter |
| CN102684506A (en) * | 2012-05-09 | 2012-09-19 | 广州金升阳科技有限公司 | Method for improving working efficiency of self-excited push-pull converter and self-excited push-pull converter |
| CN103187889A (en) * | 2011-12-29 | 2013-07-03 | 中国科学院声学研究所 | Portable high-voltage direct current stabilized voltage power supply |
| CN203219181U (en) * | 2013-03-19 | 2013-09-25 | 广州金升阳科技有限公司 | Self-excited push-pull converter |
| CN204244078U (en) * | 2014-09-10 | 2015-04-01 | 广州优联电气科技有限公司 | Wide input voltage stabilizing exports the Royal circuit of band feedback loop |
-
2014
- 2014-09-10 CN CN201410459371.6A patent/CN104184332A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0945489A (en) * | 1995-08-03 | 1997-02-14 | Matsushita Electric Ind Co Ltd | Inverter circuit for fluorescent lamp |
| US20070103093A1 (en) * | 2005-08-02 | 2007-05-10 | Texas Instruments Incorporated | Systems and methods for backlight driving |
| US20070182342A1 (en) * | 2005-08-02 | 2007-08-09 | Texas Instruments Incorporated | Lcd backlight driver |
| CN2924914Y (en) * | 2006-05-26 | 2007-07-18 | 广州金升阳科技有限公司 | Soft start circuit for micro-power power module |
| KR20080004615U (en) * | 2007-04-10 | 2008-10-15 | 이철의 | Protection circuit for power supply adopting Royer converter |
| CN103187889A (en) * | 2011-12-29 | 2013-07-03 | 中国科学院声学研究所 | Portable high-voltage direct current stabilized voltage power supply |
| CN102684506A (en) * | 2012-05-09 | 2012-09-19 | 广州金升阳科技有限公司 | Method for improving working efficiency of self-excited push-pull converter and self-excited push-pull converter |
| CN203219181U (en) * | 2013-03-19 | 2013-09-25 | 广州金升阳科技有限公司 | Self-excited push-pull converter |
| CN204244078U (en) * | 2014-09-10 | 2015-04-01 | 广州优联电气科技有限公司 | Wide input voltage stabilizing exports the Royal circuit of band feedback loop |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141203 |