CN2591836Y - Positive and negative double-voltage output single-phase active power factor correction step-up transformer - Google Patents
Positive and negative double-voltage output single-phase active power factor correction step-up transformer Download PDFInfo
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- CN2591836Y CN2591836Y CN 02247979 CN02247979U CN2591836Y CN 2591836 Y CN2591836 Y CN 2591836Y CN 02247979 CN02247979 CN 02247979 CN 02247979 U CN02247979 U CN 02247979U CN 2591836 Y CN2591836 Y CN 2591836Y
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Abstract
The utility model relates to a voltage booster for correcting factors of single-phase active power output by positive voltage and negative voltage, which is composed of an energy storing electrical inductor, a rectifying diode for outputting the positive voltage and the negative voltage, a filtering capacitor for outputting the positive voltage and the negative voltage, a full-wave rectifier, a switch tube and a switch controller thereof, a sampler of output voltage signals, an active positive precise wave detector connected with the output end of the sampler of input voltage signals, a sampler of input current signals, a sampler of positive voltage output signals and negative voltage output signals, a feedback control analog switch of the positive voltage output signals and the negative voltage output signals, a phase inverter of the negative voltage output signals, a sampler of input alternate current signals, and a control signal generator connected with the output end of the sampler of the input alternate current signals. The utility model solves the problem that the single-voltage output of the voltage booster for correcting factors of single-phase active power can not be directly connected with an inverter circuit. The utility model not only can increase the power factor of a power source and can reduce the electric wattless loss, but also can simplify a manufactured AC-AC power source circuit and can reduce the cost. The technical scheme of directly connecting a non-main rectifier of alternate current input has the advantages of more simplified circuit, energy saving, lower manufacturing cost of the power source and higher reliability.
Description
Technical field
The utility model relates to a kind of single-phase active power factor correcting step-up device, particularly a kind of directly connecing exchanges and exports the single-phase active power factor correcting step-up device of positive and negative pair of voltage, the single-phase active power factor correcting step-up device of promptly positive and negative pair of voltage output.
Background technology
In the prior art, in order to improve the power factor of power supply, reduce the electricity consumption reactive loss, usually all adopt circuit of power factor correction to improve the power factor of power-supply device, and existing Single-Phase Active Power Factor Correction Circuit, it is single-phase active power factor correcting step-up device, generally all be by energy storage inductor L, rectifier diode D, output filter capacitor C, switching tube S, switching tube on-off controller 4 and input voltage signal sampler 1 that special-purpose pulsewidth modulated intergrated circuit and its peripheral assembly constitute, input current signal sampler 2 and output voltage signal sampler 3 constitute, as shown in Figure 1, switching tube on-off controller 4 is according to the input voltage signal of searching, the power factor correcting step-up device work that input current signal and the control of output voltage negative-feedback signal constitute, the output that generally is connected on rectifier DZ uses, output only is univoltage (positive voltage or negative voltage), because output can not directly connect inverter circuit, and when inversion, the centre also need be provided with spacer assembly, thereby the AC-AC power circuit complexity of making, the manufacturing cost height, in addition, such power factor correcting step-up device is connected on the power supply that rectifier DZ output is made, also use electric loading owing to need main converter DZ and main converter DZ to bear, capacity requirement is big, increases manufacturing cost.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency that overcomes the output of existing single-phase active power factor correcting step-up device univoltage, and provide a kind of directly connecing to exchange and export the single-phase active power factor correcting step-up device of positive and negative pair of voltage, the single-phase active power factor correcting step-up device of promptly positive and negative pair of voltage output.
The technical scheme in the invention for solving the technical problem is: this directly connecing exchanges the single-phase active power factor correcting step-up device of exporting positive and negative pair of voltage, be the single-phase active power factor correcting step-up device of positive and negative pair of voltage output, it is by energy storage inductor L, positive voltage output rectifier diode D
1With positive voltage output filter capacitor C
1, negative voltage output rectifier diode D
2With negative voltage output filter capacitor C
2, full-wave rectifier 6, switching tube S, special-purpose pulsewidth modulated intergrated circuit and its peripheral assembly switching tube on-off controller 4, input voltage signal sampler 1 and its output of constituting active forward precision wave detector 7, input current signal sampler 2 and the positive voltage output signal sampler 31, the positive voltage output signal FEEDBACK CONTROL analog switch K that are connected
1, negative voltage output signal sampler 32, negative voltage output signal inverter 9, negative voltage output signal FEEDBACK CONTROL analog switch K
2, the control-signals generator 8 that connects of input exchange signal sampler 5 and output thereof constitutes, the control-signals generator 8 that input exchange signal sampler 5 outputs connect is over-zero triggers, output and the square-wave signal of input AC with the frequency homophase, control positive voltage output signal FEEDBACK CONTROL analog switch K
1With negative voltage output signal FEEDBACK CONTROL analog switch K
2In the positive and negative half cycle of input AC, take turns to operate, and rectifier 6 is connected on the output of energy storage inductor L, switching tube S is connected on the output of rectifier 6, the input voltage signal input of switching tube on-off controller 4 links to each other with the output of the accurate wave detector 7 of active forward, the input current signal input links to each other with the output of input current signal sampler 2, energy storage inductor L, is connected on the rectifier 6 of energy storage inductor L output and the positive voltage that is connected on the switching tube S of rectifier 6 outputs and is connected on energy storage inductor L output is exported rectifier diode D
1With positive voltage output filter capacitor C
1Constitute positive voltage output power factor correcting step-up device, energy storage inductor L, be connected on the rectifier 6 of energy storage inductor L output and be connected on the switching tube S of rectifier 6 outputs and be connected on the negative voltage output rectifier diode D of energy storage inductor L output
2With negative voltage output filter capacitor C
2Constitute negative voltage output power factor correcting step-up device, the input of positive and negative voltage output signal sampler (31,32) links to each other with the output of positive and negative voltage output power factor correcting step-up device respectively, and the output of positive voltage output signal sampler 31 is by positive voltage output signal FEEDBACK CONTROL analog switch K
1Link to each other with the output voltage feedback signal input of switching tube on-off controller 4, the output of negative voltage output signal sampler 32 links to each other with the input of negative voltage output signal inverter 9, and the output of negative voltage output signal inverter 9 is by negative voltage output signal FEEDBACK CONTROL analog switch K
2Link to each other with the output voltage feedback signal input of switching tube on-off controller 4, input exchange signal sampler 5 is connected on the control positive voltage output signal feedback analog switch K of ac input end, its output connection
1With negative voltage output signal feedback analog switch K
2The output of the control-signals generator 8 that takes turns to operate and the analog switch K that controls positive voltage output signal feedback
1The analog switch K of control end and control negative voltage output signal feedback
2Control end links to each other.So just, the single-phase active power factor correcting step-up device of negative two voltage outputs, the accurate wave detector 7 of active forward is used for the input voltage signal in the input AC negative half period input voltage signal sampler 1 searched, and anti-phase to become input voltage signal that polarity and input voltage signal sampler 1 search in the positive half cycle of input AC identical and only reflect the input voltage signal of input voltage amplitude, like this, in the positive half cycle of input AC, the positive voltage output power factor correcting step-up device of formation is by the actual input voltage signal of searching of switching tube on-off controller 4 foundations, input current signal and by positive voltage output signal FEEDBACK CONTROL analog switch K
1The positive output voltage negative feedback signal Control work of feedback; And in the negative half period of input AC, the negative voltage output power factor correcting step-up device of formation can be by switching tube on-off controller 4 according to searching and anti-phase and only reflect the input voltage signal, input current signal of input voltage amplitude and anti-phase and by negative voltage output signal FEEDBACK CONTROL analog switch K by negative voltage output signal inverter 9 through the accurate wave detector of active forward 7
2The negative output voltage negative-feedback signal Control work of feedback.
Provided by the utility model just this, the single-phase active power factor correcting step-up device of negative two voltage outputs, the two cover circuit of power factor correction of output positive voltage with the output negative voltage are combined togather dexterously, solved the problem that existing single-phase active power factor correcting step-up device univoltage output can not directly connect inverter circuit, can not only improve the power factor of power supply, reduce the electricity consumption reactive loss, but also the AC-AC power circuit of manufacturing is simplified, cost reduces, exchange the no main converter technical scheme of importing and directly connect, circuit is more simplified, energy-conservation, also make the power supply manufacturing cost lower, reliability is higher.
Description of drawings
Fig. 1 is the electrical schematic diagram of the single-phase active power factor correcting step-up device in existing the use.
Fig. 2 is the electrical schematic diagram of the single-phase active power factor correcting step-up device of positive and negative pair of voltage output provided by the utility model.
The electrical schematic diagram of the single-phase active power factor correcting step-up device of the positive and negative pair of voltage output that Fig. 3 is provided for the utility model embodiment.
Embodiment
With reference to accompanying drawing 2,3, the single-phase active power factor correcting step-up device of this positive and negative pair of voltage output that the utility model embodiment is provided, it is by energy storage inductor L, positive voltage output rectifier diode D
1With positive voltage output filter capacitor C
1, negative voltage output rectifier diode D
2With negative voltage output filter capacitor C
2, full-wave rectifier 6, switching tube S, UC3854 type pulsewidth modulated intergrated circuit and its peripheral assembly switching tube on-off controller 4, input voltage signal sampler 1 and its output of constituting active forward precision wave detector 7, input current signal sampler 2 and the positive voltage output signal sampler 31, the positive voltage output signal FEEDBACK CONTROL analog switch K that are connected
1, negative voltage output signal sampler 32, negative voltage output signal inverter 9, negative voltage output signal FEEDBACK CONTROL analog switch K
2, the control-signals generator 8 that connects of input exchange signal sampler 5 and output thereof constitutes, the accurate wave detector 7 of described active forward is by operational amplifier T
1, operational amplifier T
1The detector diode D that output connects
3And be connected across detector diode D
3Output and operational amplifier T
1Resistance R between inverting input
1And capacitor C
3Constitute operational amplifier T
1Inverting input links to each other with input voltage signal sampler 1 output; Described negative voltage output signal FEEDBACK CONTROL analog switch K
2Be a unit switch, by two analog switch (K
21, K
22) constitute analog switch K
21Control end by current-limiting resistance R
7Connect high potential and pass through analog switch K
22Connect electronegative potential; Described input exchange signal sampler 5 is by divider resistance (R
2, R
3) and and resistance R
3Voltage stabilizing didoe Dw in parallel constitutes, and the control-signals generator 8 that its output connects is over-zero triggers, by operational amplifier T
2With its in-phase input end biasing divider resistance (R
4, R
5) and be connected across operational amplifier T
2Resistance R between output and its in-phase input end
6Constitute output and the square-wave signal of input AC, control positive voltage output signal FEEDBACK CONTROL analog switch K with the frequency homophase
1With negative voltage output signal FEEDBACK CONTROL combine analog K switch
2In the positive and negative half cycle of input AC, take turns to operate, and rectifier 6 is connected on the output of energy storage inductor L, switching tube S is connected on the output of rectifier 6, the detector diode D of the accurate wave detector 7 of the input voltage signal input of switching tube on-off controller 4 and active forward
3Output link to each other, the input current signal input links to each other with the output of input current signal sampler 2, energy storage inductor L, is connected on the rectifier 6 of energy storage inductor L output and the positive voltage that is connected on the switching tube S of rectifier 6 outputs and is connected on energy storage inductor L output is exported rectifier diode D
1With positive voltage output filter capacitor C
1Constitute positive voltage output power factor correcting step-up device, energy storage inductor L, be connected on the rectifier 6 of energy storage inductor L output and be connected on the switching tube S of rectifier 6 outputs and be connected on the negative voltage output rectifier diode D of energy storage inductor L output
2With negative voltage output filter capacitor C
2Constitute negative voltage output power factor correcting step-up device, the input of positive and negative voltage output signal sampler (31,32) links to each other with the output of positive and negative voltage output power factor correcting step-up device respectively, and the output of positive voltage output signal sampler 31 is by positive voltage output signal FEEDBACK CONTROL analog switch K
1Link to each other with the output voltage feedback signal input of switching tube on-off controller 4, the output of negative voltage output signal sampler 32 links to each other with the input of negative voltage output signal inverter 9, and the output of negative voltage output signal inverter 9 is by negative voltage output signal FEEDBACK CONTROL combine analog K switch
2Analog switch K
21Link to each other with the output voltage feedback signal input of switching tube on-off controller 4, input exchange signal sampler 5 is connected on the control positive voltage output signal feedback analog switch K of ac input end, its output connection
1With negative voltage output signal feedback analog switch K
2The output of the control-signals generator 8 that takes turns to operate and the analog switch K that controls positive voltage output signal feedback
1The combine analog K switch of control end and control negative voltage output signal feedback
2Analog switch K
22Control end links to each other.
Among the figure, U
+-positive direct-current.
Claims (5)
1, a kind of single-phase active power factor correcting step-up device of positive and negative pair of voltage output, have the pulsewidth modulated intergrated circuit of energy storage inductor (L), rectifier diode and output filter capacitor, switching tube (S), special use and switching tube on-off controller (4), input voltage signal sampler (1), input current signal sampler (2) and the output signal sampler that its peripheral assembly constitutes, it is characterized in that: it is by energy storage inductor (L), positive voltage output rectifier diode (D
1) and positive voltage output filter capacitor (C
1), negative voltage output rectifier diode (D
2) and negative voltage output filter capacitor (C
2), full-wave rectifier (6), switching tube (S), special-purpose pulsewidth modulated intergrated circuit and its peripheral assembly the switching tube on-off controller (4), the input voltage signal sampler (1) that constitute active forward precision wave detector (7), input current signal sampler (2) and the positive voltage output signal sampler (31), the positive voltage output signal FEEDBACK CONTROL analog switch (K that are connected with its output
1), negative voltage output signal sampler (32), negative voltage output signal inverter (9), negative voltage output signal FEEDBACK CONTROL analog switch (K
2), the control-signals generator (8) that input exchange signal sampler (5) and output thereof connect constitutes, the control-signals generator (8) that input exchange signal sampler (5) output connects is an over-zero trigger, and rectifier (6) is connected on the output of energy storage inductor (L), switching tube (S) is connected on the output of rectifier (6), the input voltage signal input of switching tube on-off controller (4) links to each other with the output of the accurate wave detector of active forward (7), the input current signal input links to each other with the output of input current signal sampler (2), energy storage inductor (L), be connected on the rectifier (6) of energy storage inductor (L) output and be connected on the switching tube (S) of rectifier (6) output and be connected on the positive voltage output rectifier diode (D of energy storage inductor (L) output
1) and positive voltage output filter capacitor (C
1) constitute positive voltage output power factor correcting step-up device, energy storage inductor (L), be connected on the rectifier (6) of energy storage inductor (L) output and the negative voltage that is connected on the switching tube (S) of rectifier (6) output and is connected on energy storage inductor (L) output is exported rectifier diode (D
2) and negative voltage output filter capacitor (C
2) formation negative voltage output power factor correcting step-up device, the input of positive and negative voltage output signal sampler (31,32) links to each other with the output of positive and negative voltage output power factor correcting step-up device respectively, and the output of positive voltage output signal sampler (31) is by positive voltage output signal FEEDBACK CONTROL analog switch (K
1) link to each other with the output voltage feedback signal input of switching tube on-off controller (4), the output of negative voltage output signal sampler (32) links to each other with the input of negative voltage output signal inverter (9), and the output of negative voltage output signal inverter (9) is by negative voltage output signal FEEDBACK CONTROL analog switch (K
2) link to each other with the output voltage feedback signal input of switching tube on-off controller (4), input exchange signal sampler (5) is connected on the control positive voltage output signal feedback analog switch (K of ac input end, its output connection
1) and negative voltage output signal feedback analog switch (K
2) output of the control-signals generator (8) that takes turns to operate and the analog switch (K of control positive voltage output signal feedback
1) control end and the analog switch (K that controls negative voltage output signal feedback
2) control end links to each other.
2, the single-phase active power factor correcting step-up device of positive and negative pair of voltage output according to claim 1 is characterized in that: described negative voltage output signal FEEDBACK CONTROL analog switch (K
2) be a unit switch, by two analog switch (K
21, K
22) constitute analog switch (K
21) control end by current-limiting resistance (R
7) connect high potential and pass through analog switch (K
22) connecing electronegative potential, the output of negative voltage output signal inverter (9) is by combine analog switch (K
2) analog switch (K
21) link to each other the output of control-signals generator (8) and combine analog switch (K with the output voltage feedback signal input of switching tube on-off controller (4)
2) analog switch (K
22) control end links to each other.
3, the single-phase active power factor correcting step-up device of positive and negative pair of voltage output according to claim 1 and 2, it is characterized in that: the described accurate wave detector of active forward (7) is by operational amplifier (T
1), operational amplifier (T
1) detector diode (D that connects of output
3) and be connected across detector diode (D
3) output and operational amplifier (T
1) resistance (R between inverting input
1) and electric capacity (C
3) constitute, operational amplifier (T
1) inverting input links to each other with input voltage signal sampler (1) output.
4, the single-phase active power factor correcting step-up device of positive and negative pair of voltage output according to claim 1 and 2, it is characterized in that: described input exchange signal sampler (5) is by divider resistance (R
2, R
3) and with resistance (R
3) voltage stabilizing didoe (Dw) in parallel constitutes, the control-signals generator (8) that its output connects is by operational amplifier (T
2) and its in-phase input end biasing divider resistance (R
4, R
5) and be connected across operational amplifier (T
2) resistance (R between output and its in-phase input end
6) constitute.
5, the single-phase active power factor correcting step-up device of positive and negative pair of voltage output according to claim 3, it is characterized in that: described input exchange signal sampler (5) is by divider resistance (R
2, R
3) and with resistance (R
3) voltage stabilizing didoe (Dw) in parallel constitutes, the control-signals generator (8) that its output connects is by operational amplifier (T
2) and its in-phase input end biasing divider resistance (R
4, R
5) and be connected across operational amplifier (T
2) resistance (R between output and its in-phase input end
6) constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02247979 CN2591836Y (en) | 2002-08-27 | 2002-08-27 | Positive and negative double-voltage output single-phase active power factor correction step-up transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02247979 CN2591836Y (en) | 2002-08-27 | 2002-08-27 | Positive and negative double-voltage output single-phase active power factor correction step-up transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591836Y true CN2591836Y (en) | 2003-12-10 |
Family
ID=33718701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02247979 Expired - Fee Related CN2591836Y (en) | 2002-08-27 | 2002-08-27 | Positive and negative double-voltage output single-phase active power factor correction step-up transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591836Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710695B (en) * | 2009-12-03 | 2012-06-06 | 艾默生网络能源有限公司 | Wave-following current-limiting method and device of switching tube of uninterruptible power supply |
| CN115483823A (en) * | 2022-09-21 | 2022-12-16 | 钰泰半导体股份有限公司 | Switching power factor corrector and AC/DC converter |
-
2002
- 2002-08-27 CN CN 02247979 patent/CN2591836Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710695B (en) * | 2009-12-03 | 2012-06-06 | 艾默生网络能源有限公司 | Wave-following current-limiting method and device of switching tube of uninterruptible power supply |
| CN115483823A (en) * | 2022-09-21 | 2022-12-16 | 钰泰半导体股份有限公司 | Switching power factor corrector and AC/DC converter |
| CN115483823B (en) * | 2022-09-21 | 2024-01-19 | 钰泰半导体股份有限公司 | Switching power factor corrector and AC/DC converter |
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| 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 |