CN100364220C - Multipurpose switch power supply - Google Patents
Multipurpose switch power supply Download PDFInfo
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- CN100364220C CN100364220C CNB200510033119XA CN200510033119A CN100364220C CN 100364220 C CN100364220 C CN 100364220C CN B200510033119X A CNB200510033119X A CN B200510033119XA CN 200510033119 A CN200510033119 A CN 200510033119A CN 100364220 C CN100364220 C CN 100364220C
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- voltage
- resistor
- resistance
- circuit
- power supply
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Abstract
The present invention discloses a multipurpose switch power supply which comprises an input-stage rectification circuit, a self-excitation oscillation circuit, an output-stage voltage stabilizing circuit and a voltage feedback circuit. The present invention is characterized in that in the voltage feedback circuit, a resistor R17, a potentiometer RW and resistors R, R19 are connected in series; a resistor R16 is connected with a resistor R15 in series; a resistor R18 is connected with a voltage stabilizing tube 2D2 by the cathode of the voltage stabilizing tube 2D2; the series circuits are connected to both ends of the positive electrode and the negative electrode of output voltage in parallel; the connection point of the resistor R17 and the potentiometer RW is connected with the base electrode of a triode Q4; the connection point of the resistor R16 and the resistor R15, and both ends of the collecting electrode of the triode Q4 are connected with the input electrode of a photoelectric coupling IC; the connection point of the resistor R18 and the voltage stabilizing tube 2D2 is connected with the emitter electrode of the triode Q4; the output end of the photoelectric coupling IC is primarily connected with the oscillation control input end of the self-excitation oscillation circuit. Because an output voltage stabilizing power supply has the advantages of large voltage ranges, flexible combination, good stability, wide purposes, commercial power isolation, safe use and low production cost, the present invention has good market prospects.
Description
Technical field
The present invention relates to a kind of multipurpose switch power supply, belong to field of power supplies.
Background technology
The parallel connection type independent-excited switching power supply that present stage is of the same type on the market mainly is a low-voltage dc power supply, and the output stabilized voltage power supply is about 5～12V, and power supply of the same type makes up underaction.
Summary of the invention
The purpose of this invention is to provide a kind of parallel connection type self-excitation switching mode voltage stablizer, not only can export low-voltage dc power supply, and can export the constant voltage dc source that reaches 110V～200V, and power supply of the same type can make up connection, can not influence its voltage regulation result.Be various direct current supply electrical works reliably.
The object of the present invention is achieved like this: a kind of multipurpose switch power supply, comprise the input stage rectification circuit, self-maintained circuit, the output stage voltage stabilizing circuit, voltage feedback circuit, it is characterized in that: in voltage feedback circuit, resistance R 17, potentiometer RW, resistance R, the R19 series connection, resistance R 16 is connected with resistance R 15, resistance R 18 is through the negative electrode series connection of voltage-stabiliser tube 2D2, these series circuits just all are being attempted by output voltage, the negative pole two ends, resistance R 17, the base stage of the tie point of potentiometer RW and triode Q4 is joined, the input utmost point of the interface of resistance R 16 and resistance R 15 and collector electrode two terminations one photoelectricity of triode Q4 coupling IC, resistance R 18 is joined with the interface of voltage-stabiliser tube 2D2 and the emitter of triode Q4, the output of photoelectricity coupling IC and vibration control elementary the joining of input of self-maintained circuit.
The present invention has following advantage: the transformation loss is little, meets environment protecting and power-saving, and output stabilized voltage power supply voltage-regulation scope is bigger, combination flexibly and can not influence the stability of power supply, it has the isolation civil power, and is safe in utilization, and low cost of manufacture, have good market prospects.
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the circuit diagram of multipurpose switch power supply of the present invention.
Fig. 2 is the parallel circuits connection figure of several multipurpose switch power supplies of the present invention.
Fig. 3 is the series circuit connection figure of several multipurpose switch power supplies of the present invention.
Embodiment
As shown in Figure 1, a kind of multipurpose switch power supply, comprise input stage rectification circuit 1, self-maintained circuit 2, output stage voltage stabilizing circuit 3, voltage feedback circuit 4, it is characterized in that: in voltage feedback circuit 4, resistance R 17, potentiometer RW, resistance R, the R19 series connection, resistance R 16 is connected with resistance R 15, resistance R 18 is through the negative electrode series connection of voltage-stabiliser tube 2D2, these series circuits just all are being attempted by output voltage, the negative pole two ends, resistance R 17, the base stage of the tie point of potentiometer RW and triode Q4 is joined, the input utmost point of the interface of resistance R 16 and resistance R 15 and collector electrode two terminations one photoelectricity of triode Q4 coupling IC, resistance R 18 is joined with the interface of voltage-stabiliser tube 2D2 and the emitter of triode Q4, the output of photoelectricity coupling IC and vibration control elementary the joining of input of self-maintained circuit 2.Its oscillatory work principle is as follows:
New one takes turns circulation has begun.Principle of stabilized voltage is: as causing V because of external factor
Out↑ → V
B4Desire rises and V
BeClamper (because of the 2D2 voltage stabilizing) → I
B4↑ → I
C4↑ → optocoupler I
CI
1.2↑ → optocoupler I
CI
3.4↑ → V
3.4↓ → I
C2↑ → V
B1↑ → I
C1↑ → V
B3↓ → I
C3↓ → V
Out↓, thereby reach the voltage stabilizing purpose.Otherwise in like manner.When practicing, N the multipurpose switch power supply that parameter is identical is as N1, N2 ~ Nn, at their mutual coupling primary dc power supply terminal, same polarity is parallel with one another promptly+and the Bi end interconnects, and the ground end also interconnects, and in secondary output same polarity parallel connection behind rectifying and wave-filtering, its parallel connection is many more, the electric loading of being accepted is also big more, in the present embodiment, and as shown in Figure 2, two multipurpose switch power supply N1 are in parallel with N2, and former each output of energy force rate at the output on-load doubles like this; N the multipurpose switch power supply that parameter is identical, as N1, N2～Nn, at their mutual coupling primary dc power supply terminal, same polarity is parallel with one another promptly+the Bi end interconnects, the ground end also interconnects, and secondary behind rectifying and wave-filtering the series connection of output heteropolarity be the positive pole that the negative pole of N1 meets N2, in the present embodiment, as shown in Figure 3, two multipurpose switch power supply N1 connect with N2, form in output like this to double than former each output direct voltage.It is more large-scale circuit adjustment that foregoing circuit connects, if make the output voltage fine setting of circuit, as shown in Figure 3, amplify bias fine-tuning potentiometer Rw (during practical application by triode, be fixed in the front shell, be convenient to people and regulate needed direct voltage) realize, for expanding to the direct voltage adjustable range, in potentiometer Rw one termination, one resistance R (Rw=R), switch of R two ends adjunction (this switch equally fixedly front shell) in actual applications,, on the other end serial connection biasing circuit of R, on the other hand, regulate, reach and to control N direct current same power supplies simultaneously with single potentiometer, must be elementary in connect other the optical coupling of the C utmost point of sampling amplifier tube, and in the secondary controlled of optical coupling in the potentiometer of same sample circuit, because of circuit working at high frequency region, need take shielding measure.By combinations thereof, output stabilized voltage power supply voltage-regulation scope is bigger, makes up flexibly and can not influence the stability of power supply, because the elementary and secondary of circuit isolates civil power by oscillation transformer, safe in utilization, and low cost of manufacture, good market prospects had.
Claims (1)
1. multipurpose switch power supply, comprise input stage rectification circuit (1), self-maintained circuit (2), output stage voltage stabilizing circuit (3), voltage feedback circuit (4), it is characterized in that: in voltage feedback circuit (4), resistance R 17, potentiometer RW, resistance R, the R19 series connection, resistance R 16 is connected with resistance R 15, resistance R 18 is connected with voltage-stabiliser tube 2D2 through the negative electrode of voltage-stabiliser tube 2D2, these series circuits just all are being attempted by output voltage, the negative pole two ends, resistance R 17, the base stage of the tie point of potentiometer RW and triode Q4 is joined, the input utmost point of the interface of resistance R 16 and resistance R 15 and collector electrode two terminations one photoelectricity of triode Q4 coupling IC, resistance R 18 is joined with the interface of voltage-stabiliser tube 2D2 and the emitter of triode Q4, the output of photoelectricity coupling IC and vibration control elementary the joining of input of self-maintained circuit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510033119XA CN100364220C (en) | 2005-02-04 | 2005-02-04 | Multipurpose switch power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510033119XA CN100364220C (en) | 2005-02-04 | 2005-02-04 | Multipurpose switch power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1667929A CN1667929A (en) | 2005-09-14 |
| CN100364220C true CN100364220C (en) | 2008-01-23 |
Family
ID=35038859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510033119XA Expired - Fee Related CN100364220C (en) | 2005-02-04 | 2005-02-04 | Multipurpose switch power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100364220C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101083435B (en) * | 2006-05-31 | 2010-11-10 | 海尔集团公司 | Self-activated switch power supply apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000032749A (en) * | 1998-07-09 | 2000-01-28 | Canon Inc | Switching power supply |
| CN1285648A (en) * | 1999-08-24 | 2001-02-28 | 船井电机株式会社 | Circuit breaker type switch power source |
| JP2002119053A (en) * | 2000-10-10 | 2002-04-19 | Onkyo Corp | Switching regulator |
| CN1447507A (en) * | 2003-04-08 | 2003-10-08 | 毛灿豪 | Switching power supply |
| CN2785014Y (en) * | 2005-02-04 | 2006-05-31 | 邹荣生 | Multi-purpose switch power supply |
-
2005
- 2005-02-04 CN CNB200510033119XA patent/CN100364220C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000032749A (en) * | 1998-07-09 | 2000-01-28 | Canon Inc | Switching power supply |
| CN1285648A (en) * | 1999-08-24 | 2001-02-28 | 船井电机株式会社 | Circuit breaker type switch power source |
| JP2002119053A (en) * | 2000-10-10 | 2002-04-19 | Onkyo Corp | Switching regulator |
| CN1447507A (en) * | 2003-04-08 | 2003-10-08 | 毛灿豪 | Switching power supply |
| CN2785014Y (en) * | 2005-02-04 | 2006-05-31 | 邹荣生 | Multi-purpose switch power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1667929A (en) | 2005-09-14 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Heyuan Chiuyue Optoelectronics Technology Co., Ltd. Assignor: Zou Rongsheng Contract fulfillment period: 2008.11.1 to 2013.10.30 contract change Contract record no.: 2009440001610 Denomination of invention: Multipurpose switch power supply Granted publication date: 20080123 License type: Exclusive license Record date: 20091021 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.1 TO 2013.10.30; CHANGE OF CONTRACT Name of requester: HEYUAN CITY CHAOYUE PHOTOELECTRICITY SCIENCE AND T Effective date: 20091021 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20140204 |