CN104702109A - Re-boost power converter with flyback mode - Google Patents
Re-boost power converter with flyback mode Download PDFInfo
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- CN104702109A CN104702109A CN201310656411.1A CN201310656411A CN104702109A CN 104702109 A CN104702109 A CN 104702109A CN 201310656411 A CN201310656411 A CN 201310656411A CN 104702109 A CN104702109 A CN 104702109A
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Abstract
The invention provides a re-boost power converter with a flyback mode. The re-boost power converter comprises a transformer, a primary side switch unit, a primary side switch control unit, a first one-way conductive unit, a first charge storage unit, a second charge storage unit, a second one-way conductive unit, a mode switching switch unit and a mode switching switch control unit. When the mode switching switch unit is closed by the mode switching switch control unit, the re-boost power converter has the functions of a normal re-boost power converter; when the mode switching switch unit is not closed by the mode switching switch control unit, the re-boost power converter has the functions of the normal flyback power converter.
Description
Technical field
The present invention relates to one booster type power supply change-over device again, particularly relate to and a kind of there is the power supply change-over device of booster type again returning the pattern of speeding.
Background technology
Booster type power supply change-over device has the advantage of high efficiency and high step-up ratio again; Therefore, then booster type power supply change-over device is widely used, and is excellent power supply change-over device.
Please refer to Fig. 1, it is an embodiment oscillogram of the general output voltage of booster type power supply change-over device again; The shortcoming of booster type power supply change-over device can be transfused to the strangulation of voltage institute for minimum output voltage again; That is minimum output voltage cannot be zero (because input voltage is non-vanishing), as shown in Figure 1.
Therefore, generally booster type power supply change-over device only can be used as booster type current transformer again, cannot be applied in and exchange out-put supply supply, such as micro-converter (micro inverter).Please refer to Fig. 2, it can be applicable to the embodiment oscillogram exchanging out-put supply supply for output voltage; Please refer to Fig. 3, it is the oscillogram of output voltage after unsteady flow of Fig. 2; The output voltage (as shown in Figure 1) of general booster type power supply change-over device again cannot reach perfect zero-crossing (as shown in Figure 3) after unsteady flow, and therefore general booster type power supply change-over device again cannot be applied in and exchange out-put supply supply.
Summary of the invention
For improving the shortcoming of above-mentioned prior art, the object of the present invention is to provide and a kind of there is the power supply change-over device of booster type again returning the pattern of speeding.
For reaching above-mentioned purpose of the present invention, of the present invention have the power supply change-over device of booster type again returning the pattern of speeding and comprise: a power input; One power output end; One power supply negative terminal; One transformer, this transformer is electrically connected to this power input; One primary side switch element, this primary side switch element is electrically connected to this transformer and this power supply negative terminal; One primary side switch control unit, this primary side switch control unit is electrically connected to this primary side switch element; One first unilateal conduction unit, this first unilateal conduction unit is electrically connected to this transformer and this power output end; One first electric charge storage unit, this first electric charge storage unit is electrically connected to this transformer and this power output end; One second electric charge storage unit, this second electric charge storage unit is electrically connected to this transformer, this first electric charge storage unit and this power supply negative terminal; One second unilateal conduction unit, this second unilateal conduction unit is electrically connected to this transformer and this primary side switch element; One mode selector switch unit, this mode selector switch unit is electrically connected to this second unilateal conduction unit, this transformer, this first electric charge storage unit and this second electric charge storage unit; And a mode selector switch control unit, this mode selector switch control unit is electrically connected to this mode selector switch unit.Wherein when this this mode selector switch unit of mode selector switch control unit conducting, this has the function that the power supply change-over device of booster type again returning the pattern of speeding has booster type power supply changeover device again; When this this mode selector switch unit of mode selector switch control unit not conducting, this has the power supply change-over device of booster type again returning the pattern of speeding and has the function returning type power supply changeover device of speeding.
Effect of the present invention is to make the minimum output voltage of booster type power supply change-over device again can be zero, and therefore booster type power supply change-over device is applied in interchange out-put supply supply again.
Accompanying drawing explanation
Fig. 1 is the output voltage waveform of general booster type power supply change-over device again;
Fig. 2 is that output voltage can be applicable to the embodiment oscillogram exchanging out-put supply supply;
Fig. 3 is the oscillogram of output voltage after unsteady flow of Fig. 2;
Fig. 4 is the first embodiment calcspar with the power supply change-over device of booster type again returning the pattern of speeding of the present invention;
Fig. 5 is the second embodiment calcspar with the power supply change-over device of booster type again returning the pattern of speeding of the present invention;
Fig. 6 is the 3rd embodiment calcspar with the power supply change-over device of booster type again returning the pattern of speeding of the present invention;
Fig. 7 is the 4th embodiment calcspar with the power supply change-over device of booster type again returning the pattern of speeding of the present invention.
Reference numeral
10: there is the power supply change-over device of booster type again returning the pattern of speeding
102: power input 104: power output end
106: power supply negative terminal 108: transformer
110: primary side switch element 112: primary side switch control unit
114: the first unilateal conduction unit 116: the first electric charge storage units
118: the second electric charge storage unit 120: the second unilateal conduction unit
122: mode selector switch unit
124: mode selector switch control unit 126: the second electric charge storage unit bypass circuit
10802: transformer primary side 10804: Circuit Fault on Secondary Transformer
10806: transformer first pin 10808: transformer second pin
10810: transformer the 3rd pin 10812: transformer the 4th pin
11002: primary side switch element first pin 11004: primary side switch element second pin
11006: primary side switch element the 3rd pin 11402: the first unilateal conduction unit first pin
11404: the first unilateal conduction unit second pin 11602: the first electric charge storage unit first pins
11604: the first electric charge storage unit second pin 11802: the second electric charge storage unit first pins
11804: the second electric charge storage unit second pin 12002: the second unilateal conduction unit first pins
12004: the second unilateal conduction unit second pins 12202: mode selector switch unit first pin
12204: mode selector switch unit second pin 12206: mode selector switch unit the 3rd pin
12602: by-pass switch unit 12604: by-pass switch control unit
12606: the three unilateal conduction unit 12608: voltage detection unit
Embodiment
Please refer to Fig. 4, it is the first embodiment calcspar with the power supply change-over device of booster type again returning the pattern of speeding of the present invention.One has the power supply change-over device of booster type again 10 returning the pattern of speeding comprises power input 102, power output end 104, power supply negative terminal 106, transformer 108, primary side switch element 110, primary side switch control unit 112,1 first unilateal conduction unit 114,1 first electric charge storage unit 116,1 second electric charge storage unit 118,1 second unilateal conduction unit 120, mode selector switch unit 122 and a mode selector switch control unit 124.
This primary side switch element 110 can be such as but is not defined as a transistor switch; This first unilateal conduction unit 114 can be such as but is not defined as a diode (negative electrode of diode is electrically connected to this power output end 104; The anode of diode is electrically connected to this transformer 108); This first electric charge storage unit 116 can be such as but is not defined as an electric capacity; This second electric charge storage unit 118 can be such as but is not defined as an electric capacity; This second unilateal conduction unit 120 can be such as but is not defined as a diode (negative electrode of diode is electrically connected to this mode selector switch unit 122; The anode of diode is electrically connected to this transformer 108); This mode selector switch unit 122 can be such as but is not defined as a transistor switch.
This transformer 108 is electrically connected to this power input 102; This primary side switch element 110 is electrically connected to this transformer 108 and this power supply negative terminal 106; This primary side switch control unit 112 is electrically connected to this primary side switch element 110; This first unilateal conduction unit 114 is electrically connected to this transformer 108 and this power output end 104; This first electric charge storage unit 116 is electrically connected to this transformer 108 and this power output end 104; This second electric charge storage unit 118 is electrically connected to this transformer 108, this first electric charge storage unit 116 and this power supply negative terminal 106; This second unilateal conduction unit 120 is electrically connected to this transformer 108 and this primary side switch element 110; This mode selector switch unit 122 is electrically connected to this second unilateal conduction unit 120, this transformer 108, this first electric charge storage unit 116 and this second electric charge storage unit 118; This mode selector switch control unit 124 is electrically connected to this mode selector switch unit 122.
When this this mode selector switch unit 122 of mode selector switch control unit 124 conducting, this has the function that the power supply change-over device of booster type again 10 returning the pattern of speeding has booster type power supply changeover device again; When this this mode selector switch unit 122 of mode selector switch control unit 124 not conducting, this has the power supply change-over device of booster type again 10 returning the pattern of speeding and has the function returning type power supply changeover device of speeding.
Referring again to Fig. 1, it is the output voltage waveform of general booster type power supply change-over device again.Of the present invention there is the power supply change-over device of booster type again 10 that returns the pattern of speeding and general booster type power supply change-over device again different be in, when the output voltage of general booster type power supply change-over device again changes along with the time and changes (when the absolute value of output voltage is greater than the absolute value of input voltage; Horizontal line part in the middle of output voltage waveforms in the middle of Fig. 1 is the magnitude of voltage size of input voltage), it is a booster type power supply changeover device that this this mode selector switch unit of mode selector switch control unit 124 conducting 122(should have the power supply change-over device of booster type again 10 returning the pattern of speeding).
When the output voltage of general booster type power supply change-over device does not again change along with time change (when minimum output voltage is transfused to the strangulation of voltage institute), it is return type power supply changeover device of speeding that this this mode selector switch unit of mode selector switch control unit 124 not conducting 122(should have the power supply change-over device of booster type again 10 returning the pattern of speeding).
Therefore, (Fig. 4 does not show an output voltage with the power supply change-over device of booster type again 10 returning the pattern of speeding of the present invention, this output voltage exports from this power output end 104) waveform will as shown in Figure 2, different from the output voltage waveforms of the general booster type power supply change-over device again shown in Fig. 1; Of the present invention have the power supply change-over device of booster type again 10 returning the pattern of speeding and will can be applicable to and exchange out-put supply supply.
In other words, when the output voltage of general booster type power supply change-over device does not again change along with time change (minimum output voltage cannot be zero), of the present invention have the power supply change-over device 10 of booster type again returning the pattern of speeding and change and become and return type power supply changeover device of speeding, make that minimum output voltage can (Fig. 4 show lower than an input voltage, this input voltage inputs to this power input 102), minimum output voltage can be zero; Of the present invention have the power supply change-over device of booster type again 10 returning the pattern of speeding and will can be applicable to and exchange out-put supply supply.
At a specific embodiment, this mode selector switch control unit 124, with this mode selector switch unit 122 of the doubled frequency not conducting of this input voltage, makes this have to return the power supply change-over device of booster type again 10 of the pattern of speeding to become and returns type power supply changeover device of speeding; And all the other times, this mode selector switch unit 122 of this mode selector switch control unit 124 conductings, makes this have to return the power supply change-over device of booster type again 10 of the pattern of speeding to become a booster type power supply changeover device.Such as, the frequency of this input voltage is 60Hz, then this mode selector switch control unit 124 is with this mode selector switch unit 122 of 120Hz not conducting.
At another specific embodiment, this has the power supply change-over device of booster type again 10 returning the pattern of speeding and also comprises a power input voltage detector (Fig. 4 does not show) and a power output end voltage detector (Fig. 4 does not show); This power input voltage detector is electrically connected to this power input 102 and this mode selector switch control unit 124; This power output end voltage detector is electrically connected to this power output end 104 and this mode selector switch control unit 124.This power input voltage detector detects the voltage of this power input 102 and notifies this mode selector switch control unit 124; This power output end voltage detector detects the voltage of this power output end 104 and notifies this mode selector switch control unit 124.
Whereby, this mode selector switch control unit 124 learns the magnitude of voltage of this input voltage and the magnitude of voltage of this output voltage; When the absolute value of this output voltage is greater than the absolute value of this input voltage, this this mode selector switch unit 122 of mode selector switch control unit 124 conducting, this has the power supply change-over device of booster type again 10 returning the pattern of speeding is a booster type power supply changeover device; When the minimum of this output voltage is by this input voltage institute strangulation, and the desired value of this output voltage is when being not more than this input voltage (when the absolute value of this output voltage is not more than the absolute value of this input voltage), this this mode selector switch unit 122 of mode selector switch control unit 124 not conducting, this has the power supply change-over device of booster type again 10 returning the pattern of speeding is return type power supply changeover device of speeding.
Moreover of the present invention have the power supply change-over device of booster type again 10 returning the pattern of speeding and can to arrange in pairs or groups AC conversion circuit (such as full bridge circuit) at this power input 102 or this power output end 104; Therefore of the present invention have that the power supply change-over device of booster type again 10 returning the pattern of speeding can be applicable to DC-DC, direct current delivers stream (such as micro-converter), interchange turns direct current or stream field is delivered in interchange.This primary side switch control unit 112 controls this primary side switch element 110 in pulse-width modulation (such as DCM, CCM, BCM or QR mode etc.) mode.
Please refer to Fig. 5, it is the second embodiment calcspar with the power supply change-over device of booster type again returning the pattern of speeding of the present invention.The content of Fig. 5 exists together mutually with the content of Fig. 4 and repeats no more.Moreover this has the power supply change-over device of booster type again 10 returning the pattern of speeding and also comprises one second electric charge storage unit bypass circuit 126; This second electric charge storage unit bypass circuit 126 is electrically connected to this transformer 108, this first electric charge storage unit 116, this second electric charge storage unit 118, this mode selector switch unit 122 and this power supply negative terminal 106.
When this this mode selector switch unit 122 of mode selector switch control unit 124 not conducting, this second electric charge storage unit 118 correctly discharges to this power supply negative terminal 106 according to this second electric charge storage unit bypass circuit 126.
That is, when this have the power supply change-over device of booster type again 10 returning the pattern of speeding be return speed type power supply changeover device time, this the second electric charge storage unit bypass circuit 126 provides this second electric charge storage unit 118 1 bypass paths, guarantee that the voltage of this second electric charge storage unit 118 is zero, and avoid this second electric charge storage unit 118 suffer negative sense charging current and make its voltage be negative value.
This second electric charge storage unit bypass circuit 126 comprises bypass switch unit 12602, bypass switch control unit 12604 and a voltage detection unit 12608.This by-pass switch unit 12602 is electrically connected to this transformer 108, this first electric charge storage unit 116, this second electric charge storage unit 118, this mode selector switch unit 122 and this power supply negative terminal 106; This by-pass switch control unit 12604 is electrically connected to this by-pass switch unit 12602 and this mode selector switch control unit 124; This voltage detection unit 12608 is electrically connected to this transformer 108, this first electric charge storage unit 116, this second electric charge storage unit 118, this mode selector switch unit 122, this by-pass switch unit 12602 and this by-pass switch control unit 12604.This by-pass switch unit 12602 can be such as but is not defined as a transistor switch.
When this have the power supply change-over device of booster type again 10 returning the pattern of speeding be return speed type power supply changeover device time, this mode selector switch control unit 124 notifies this by-pass switch control unit 12604, this voltage detection unit 12608 detects the voltage of this second electric charge storage unit 118 and notifies this by-pass switch control unit 12604, and the voltage depending on this second electric charge storage unit 118 is determined the ON time point of this by-pass switch unit 12602 by this by-pass switch control unit 12604.
When to have the power supply change-over device of booster type again 10 returning the pattern of speeding be a booster type power supply changeover device for this, this mode selector switch control unit 124 notifies this by-pass switch control unit 12604, this this by-pass switch unit 12602 of by-pass switch control unit 12604 not conducting.
This transformer 108 comprises transformer primary side 10802 and a Circuit Fault on Secondary Transformer 10804; This transformer primary side 10802 is electrically connected to this power input 102; This Circuit Fault on Secondary Transformer 10804 is arranged relative to this transformer primary side 10802; This transformer primary side 10802 comprises transformer first pin 10806 and transformer second pin 10808; This transformer first pin 10806 is electrically connected to this power input 102; This Circuit Fault on Secondary Transformer 10804 comprises a transformer the 3rd pin 10810 and a transformer the 4th pin 10812.
This primary side switch element 110 comprises primary side switch element first pin 11002, primary side switch element second pin 11004 and primary side switch element the 3rd pin 11006; This primary side switch element first pin 11002 is electrically connected to this transformer second pin 10808; This primary side switch element second pin 11004 is electrically connected to this primary side switch control unit 112; This primary side switch element the 3rd pin 11006 is electrically connected to this power supply negative terminal 106.
This first unilateal conduction unit 114 comprises one first unilateal conduction unit first pin 11402 and one first unilateal conduction unit second pin 11404; This first unilateal conduction unit first pin 11402 is electrically connected to this transformer the 3rd pin 10810; This first unilateal conduction unit second pin 11404 is electrically connected to this power output end 104.
This first electric charge storage unit 116 comprises one first electric charge storage unit first pin 11602 and one first electric charge storage unit second pin 11604; This first electric charge storage unit first pin 11602 is electrically connected to this power output end 104; This first electric charge storage unit second pin 11604 is electrically connected to this transformer the 4th pin 10812.
This second electric charge storage unit 118 comprises one second electric charge storage unit first pin 11802 and one second electric charge storage unit second pin 11804; This second electric charge storage unit first pin 11802 is electrically connected to this transformer the 4th pin 10812; This second electric charge storage unit second pin 11804 is electrically connected to this power supply negative terminal 106.
This second unilateal conduction unit 120 comprises one second unilateal conduction unit first pin 12002 and one second unilateal conduction unit second pin 12004; This second unilateal conduction unit first pin 12002 is electrically connected to this transformer second pin 10808.
This mode selector switch unit 122 comprises mode selector switch unit first pin 12202, mode selector switch unit second pin 12204 and mode selector switch unit the 3rd pin 12206; This mode selector switch unit first pin 12202 is electrically connected to this second unilateal conduction unit second pin 12004; This mode selector switch unit second pin 12204 is electrically connected to this mode selector switch control unit 124; This mode selector switch unit the 3rd pin 12206 is electrically connected to this transformer the 4th pin 10812.
Please refer to Fig. 6, it is the 3rd embodiment calcspar with the power supply change-over device of booster type again returning the pattern of speeding of the present invention.The content of Fig. 6 exists together mutually with the content of Fig. 5 and repeats no more.This second electric charge storage unit bypass circuit 126 comprises one the 3rd unilateal conduction unit 12606; 3rd unilateal conduction unit 12606 is electrically connected to this transformer 108, this first electric charge storage unit 116, this second electric charge storage unit 118, this mode selector switch unit 122 and this power supply negative terminal 106.3rd unilateal conduction unit 12606 can be such as but is not defined as a diode (negative electrode of diode is electrically connected to this transformer 108, this first electric charge storage unit 116, this second electric charge storage unit 118 and this mode selector switch unit 122; The anode of diode is electrically connected to this power supply negative terminal 106).
Emphasis of the present invention is as follows:
1. when the absolute value of output voltage is greater than the absolute value of input voltage, this this mode selector switch unit 122 of mode selector switch control unit 124 conducting, this has the power supply change-over device of booster type again 10 returning the pattern of speeding is a booster type power supply changeover device; This mode selector switch control unit 124 notifies this by-pass switch control unit 12604, this this by-pass switch unit 12602 of by-pass switch control unit 12604 not conducting.
2. when the minimum of output voltage is transfused to the strangulation of voltage institute, this this mode selector switch unit 122 of mode selector switch control unit 124 not conducting, this has the power supply change-over device of booster type again 10 returning the pattern of speeding is return type power supply changeover device of speeding, make minimum output voltage can lower than input voltage, minimum output voltage can be zero, and therefore of the present invention have the power supply change-over device of booster type again 10 returning the pattern of speeding and will can be applicable to and exchange out-put supply supply; This second electric charge storage unit 118 correctly discharges to this power supply negative terminal 106 according to this second electric charge storage unit bypass circuit 126.
Effect of the present invention is to make the minimum output voltage of booster type power supply change-over device again can be zero, and therefore booster type power supply change-over device is applied in interchange out-put supply supply again.
Please refer to Fig. 7, it is the 4th embodiment calcspar with the power supply change-over device of booster type again returning the pattern of speeding of the present invention.Moreover, at a specific embodiment, at least two this have return the pattern of speeding the power supply change-over device 10 of booster type again parallel connection running.
But the foregoing is only preferred embodiment of the present invention, when not limiting scope of the invention process, namely all equalizations done according to claims of the present invention change and modify, and all still should belong to the category of patent covering scope of the present invention intention protection.
Claims (10)
1. there is the power supply change-over device of booster type again returning the pattern of speeding, it is characterized in that, comprise:
One power input;
One power output end;
One power supply negative terminal;
One transformer, this transformer is electrically connected to this power input;
One primary side switch element, this primary side switch element is electrically connected to this transformer and this power supply negative terminal;
One primary side switch control unit, this primary side switch control unit is electrically connected to this primary side switch element;
One first unilateal conduction unit, this first unilateal conduction unit is electrically connected to this transformer and this power output end;
One first electric charge storage unit, this first electric charge storage unit is electrically connected to this transformer and this power output end;
One second electric charge storage unit, this second electric charge storage unit is electrically connected to this transformer, this first electric charge storage unit and this power supply negative terminal;
One second unilateal conduction unit, this second unilateal conduction unit is electrically connected to this transformer and this primary side switch element;
One mode selector switch unit, this mode selector switch unit is electrically connected to this second unilateal conduction unit, this transformer, this first electric charge storage unit and this second electric charge storage unit; And
One mode selector switch control unit, this mode selector switch control unit is electrically connected to this mode selector switch unit,
Wherein when this this mode selector switch unit of mode selector switch control unit conducting, this has the function that the power supply change-over device of booster type again returning the pattern of speeding has booster type power supply changeover device again; When this this mode selector switch unit of mode selector switch control unit not conducting, this has the power supply change-over device of booster type again returning the pattern of speeding and has the function returning type power supply changeover device of speeding.
2. according to claim 1 have the power supply change-over device of booster type again returning the pattern of speeding, and it is characterized in that, also comprise:
One second electric charge storage unit bypass circuit, this second electric charge storage unit bypass circuit is electrically connected to this transformer, this first electric charge storage unit, this second electric charge storage unit, this mode selector switch unit and this power supply negative terminal,
Wherein when this this mode selector switch unit of mode selector switch control unit not conducting, this second electric charge storage unit correctly discharges to this power supply negative terminal according to this second electric charge storage unit bypass circuit.
3. according to claim 2 have the power supply change-over device of booster type again returning the pattern of speeding, and it is characterized in that, this second electric charge storage unit bypass circuit comprises:
Bypass switch unit, this by-pass switch unit is electrically connected to this transformer, this first electric charge storage unit, this second electric charge storage unit, this mode selector switch unit and this power supply negative terminal; And
Bypass switch control unit, this by-pass switch control unit is electrically connected to this by-pass switch unit and this mode selector switch control unit.
4. according to claim 3 have the power supply change-over device of booster type again returning the pattern of speeding, it is characterized in that, this transformer comprises a transformer primary side and a Circuit Fault on Secondary Transformer, this transformer primary side is electrically connected to this power input, this Circuit Fault on Secondary Transformer is arranged relative to this transformer primary side, this transformer primary side comprises transformer first pin and transformer second pin, this transformer first pin is electrically connected to this power input, and this Circuit Fault on Secondary Transformer comprises a transformer the 3rd pin and a transformer the 4th pin.
5. according to claim 4 have the power supply change-over device of booster type again returning the pattern of speeding, it is characterized in that, this primary side switch element comprises primary side switch element first pin, primary side switch element second pin and primary side switch element the 3rd pin, this primary side switch element first pin is electrically connected to this transformer second pin, this primary side switch element second pin is electrically connected to this primary side switch control unit, and this primary side switch element the 3rd pin is electrically connected to this power supply negative terminal.
6. according to claim 5 have the power supply change-over device of booster type again returning the pattern of speeding, it is characterized in that, this the first unilateal conduction unit comprises one first unilateal conduction unit first pin and one first unilateal conduction unit second pin, this the first unilateal conduction unit first pin is electrically connected to this transformer the 3rd pin, and this first unilateal conduction unit second pin is electrically connected to this power output end; This first electric charge storage unit comprises one first electric charge storage unit first pin and one first electric charge storage unit second pin, this the first electric charge storage unit first pin is electrically connected to this power output end, and this first electric charge storage unit second pin is electrically connected to this transformer the 4th pin; This second electric charge storage unit comprises one second electric charge storage unit first pin and one second electric charge storage unit second pin, this the second electric charge storage unit first pin is electrically connected to this transformer the 4th pin, and this second electric charge storage unit second pin is electrically connected to this power supply negative terminal; This second unilateal conduction unit comprises one second unilateal conduction unit first pin and one second unilateal conduction unit second pin, and this second unilateal conduction unit first pin is electrically connected to this transformer second pin.
7. according to claim 6 have the power supply change-over device of booster type again returning the pattern of speeding, it is characterized in that, this mode selector switch unit comprises mode selector switch unit first pin, one mode selector switch unit second pin and mode selector switch unit the 3rd pin, this mode selector switch unit first pin is electrically connected to this second unilateal conduction unit second pin, this mode selector switch unit second pin is electrically connected to this mode selector switch control unit, this mode selector switch unit the 3rd pin is electrically connected to this transformer the 4th pin.
8. according to claim 7 have the power supply change-over device of booster type again returning the pattern of speeding, it is characterized in that, this has, and the power supply change-over device of booster type again returning the pattern of speeding is applied to DC-DC, direct current delivers stream, interchange turns direct current or stream field is delivered in interchange.
9. according to claim 8 have the power supply change-over device of booster type again returning the pattern of speeding, and it is characterized in that, at least two this have return the pattern of speeding the power supply change-over device of booster type again parallel connection running.
10. according to claim 2 have the power supply change-over device of booster type again returning the pattern of speeding, and it is characterized in that, this second electric charge storage unit bypass circuit comprises:
One the 3rd unilateal conduction unit, the 3rd unilateal conduction unit is electrically connected to this transformer, this first electric charge storage unit, this second electric charge storage unit, this mode selector switch unit and this power supply negative terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310656411.1A CN104702109A (en) | 2013-12-05 | 2013-12-05 | Re-boost power converter with flyback mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310656411.1A CN104702109A (en) | 2013-12-05 | 2013-12-05 | Re-boost power converter with flyback mode |
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| Publication Number | Publication Date |
|---|---|
| CN104702109A true CN104702109A (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310656411.1A Pending CN104702109A (en) | 2013-12-05 | 2013-12-05 | Re-boost power converter with flyback mode |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504896A (en) * | 1981-03-18 | 1985-03-12 | Rca Corporation | Switching dc-to-dc converters |
| WO1998057243A1 (en) * | 1997-06-13 | 1998-12-17 | Northrop Grumman Corporation | Reboost converter |
| CN1619932A (en) * | 2003-11-14 | 2005-05-25 | 松下电器产业株式会社 | DC-DC converter |
| CN201422076Y (en) * | 2009-04-10 | 2010-03-10 | 东莞市冠佳电子设备有限公司 | Booster circuit |
| TW201143267A (en) * | 2010-05-31 | 2011-12-01 | Univ Nat Cheng Kung | Multi-winding high step-up DC-DC converter |
-
2013
- 2013-12-05 CN CN201310656411.1A patent/CN104702109A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504896A (en) * | 1981-03-18 | 1985-03-12 | Rca Corporation | Switching dc-to-dc converters |
| WO1998057243A1 (en) * | 1997-06-13 | 1998-12-17 | Northrop Grumman Corporation | Reboost converter |
| CN1619932A (en) * | 2003-11-14 | 2005-05-25 | 松下电器产业株式会社 | DC-DC converter |
| CN201422076Y (en) * | 2009-04-10 | 2010-03-10 | 东莞市冠佳电子设备有限公司 | Booster circuit |
| TW201143267A (en) * | 2010-05-31 | 2011-12-01 | Univ Nat Cheng Kung | Multi-winding high step-up DC-DC converter |
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Application publication date: 20150610 |