CN102064718A - Universal power supply device - Google Patents
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- CN102064718A CN102064718A CN 201010527567 CN201010527567A CN102064718A CN 102064718 A CN102064718 A CN 102064718A CN 201010527567 CN201010527567 CN 201010527567 CN 201010527567 A CN201010527567 A CN 201010527567A CN 102064718 A CN102064718 A CN 102064718A
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Abstract
The invention discloses a universal power supply device which comprises a power control unit, a voltage transformation unit and a rectifying filter unit successively connected, wherein the power control unit carries out the power conversion on the voltage by switching different power conversion modules; the voltage transformation unit is used for transforming the voltage output by the power transformation of the power control unit; and the rectifying filter unit is used for outputting the transformed voltage of the voltage transformation unit after being rectified and filtered. The universal power supply device provided by the embodiment of the invention can select different power transformation modules according to different input voltage values, realizes the universality of an input power supply, can reduce the power loss and enhances the reliability of the power supply device.
Description
Technical field
The present invention relates to power technology, particularly a kind of multiple power source device.
Background technology
Power supply market is extremely huge, but the grade of voltage is different in the world wide, and is civilian also inequality with grade commercial power.For all considerations, the occasion of commercial power also has quite a lot of use single-phase alternating current.
The civilian AC power of global general-use is divided into 110V and 220V system substantially.Therefore, the general employing of conventional universal power source apparatus carried out voltage multiplying rectifier, 220VAC carried out bridge rectifier 110VAC, and changes voltage multiplying rectifier/bridge rectifier by switch machinery or electronics.
General to input voltage in the prior art is to adopt conversion voltage multiplying rectifier/bridge rectifier.In other words, have only the input voltage of working as, refer to the alternating voltage imported, comparatively suitable when differing near 1 times!
But in research and practice process to prior art, the present inventor finds, adopt above-mentioned way, if differing of input voltage is not near 1 times, so, direct voltage behind the voltage multiplying rectifier and the direct voltage behind the bridge rectifier will differ bigger.This technology can not be applied in the large power, electrically source module, and versatility and reliability are relatively poor.
Summary of the invention
The embodiment of the invention provides a kind of multiple power source device, and it is poor to have solved in the prior art supply unit versatility, can not be applied in the defective on the large power supply.
The invention provides a kind of multiple power source device, comprise the power control unit, voltage transformation unit and the rectification filtering unit that link to each other successively; Described power control unit,, by switching different Power Conversion modules the voltage of importing is carried out Power Conversion; Described voltage transformation unit is used for the voltage that the power control unit carries out exporting behind the Power Conversion is carried out conversion; Described rectification filtering unit is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.
The multiple power source device that the embodiment of the invention provides, can be according to the different choice of input voltage value different Power Conversion modules has realized the general of input power supply, and can reduce power loss, improves the reliability of supply unit.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of embodiment of the invention multiple power source device first embodiment;
Fig. 2 is the structural representation of embodiment of the invention multiple power source device second embodiment;
Fig. 3 is the structural representation of embodiment of the invention multiple power source device the 3rd embodiment power control unit;
Fig. 4 is the structural representation of embodiment of the invention multiple power source device the 4th embodiment;
Fig. 5 is the structural representation of embodiment of the invention multiple power source device the 5th embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment one, a kind of multiple power source device as shown in Figure 1, comprise the power control unit 1, voltage transformation unit 2 and the rectification filtering unit 3 that link to each other successively, and described power control unit 1 carries out Power Conversion by switching different Power Conversion modules to the voltage of importing; Described voltage transformation unit 2 is used for the power control unit carried out that the voltage after the output carries out conversion behind the Power Conversion; Described rectification filtering unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.
Described power control unit comprises: switch control unit and at least two power models; Described switch control unit is used to detect the different magnitude of voltage of input, and carries out Power Conversion according to the different choice Power Conversion module of magnitude of voltage.
Described at least two Power Conversion modules link to each other with voltage transformation unit 2 respectively, are used to accept the control of switch control unit, input voltage is carried out Power Conversion, and the voltage after the conversion is exported to voltage transformation unit.
Described at least two Power Conversion modules are respectively full-bridge circuit 5 and half-bridge circuit 10, described switch control unit 6 links to each other with half-bridge circuit 10 with full-bridge circuit 5 respectively, and described switch control unit 6 is connected full-bridge circuit 5 or half-bridge circuit 10 according to the different choice of input voltage value.
When the input of power supply is a large power supply, for example during the 380V three-phase alternating current, switch control unit selects to connect half-bridge circuit work, when the input of power supply is a single-phase electricity, when being the 220V alternating current, switch control unit is selected to connect full-bridge circuit work, has realized the general of input power supply.
An embodiment of the present embodiment, described switch control unit comprises detecting unit, and when detecting unit detects when being input as single-phase electricity, switch control unit is connected full-bridge circuit, when detecting unit detects when being input as three-phase electricity, switch control unit is connected half-bridge circuit.
Embodiment two, a kind of multiple power source device as shown in Figure 2, comprise the power control unit 1, voltage transformation unit 2 and the rectification filtering unit 3 that link to each other successively, and described power control unit 1 carries out Power Conversion by switching different Power Conversion modules to the voltage of importing; Described voltage transformation unit 2 is used for the power control unit carried out that the voltage after the output carries out conversion behind the Power Conversion; Described rectification filtering unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.
Described power control unit comprises: switch control unit 6 and at least two power models; Described switch control unit 6 is used to detect the different magnitude of voltage of input, and carries out Power Conversion according to the different choice Power Conversion module of magnitude of voltage.
Described at least two Power Conversion modules link to each other with voltage transformation unit 2 respectively, are used to accept the control of switch control unit, input voltage is carried out Power Conversion, and the voltage after the conversion is exported to voltage transformation unit.
Described Power Conversion module is respectively tri-level inversion circuit 4 and full-bridge circuit 5, described switch control unit 6 links to each other with full-bridge circuit 5 with tri-level inversion circuit 4 respectively, and described switch control unit 6 is connected tri-level inversion circuit or full-bridge circuit according to the different choice of input voltage value.
When the input of power supply is a three-phase electricity, promptly during the 380V alternating current, switch control unit gating tri-level inversion circuit working after phase three-wire three rectification, filtering, obtains direct voltage 520V.If consider the fluctuation upper limit+20% of civil power, then can be up to 624V.Because adopt the tri-level inversion circuit, the voltage stress on each switching tube is half of input voltage.
When the input of power supply is a single-phase electricity, promptly during the 220V alternating current, the work of switch control unit gating full-bridge circuit after single-phase bridge rectification, filtering, obtains direct voltage 300V.If consider the fluctuation upper limit+20% of civil power, then can be up to 360V.
An embodiment of the present embodiment, described switch control unit comprises detecting unit, and when detecting unit detects when being input as single-phase electricity, switch control unit is connected full-bridge circuit, when detecting unit detects when being input as three-phase electricity, switch control unit is connected the tri-level inversion circuit.
According to multiple power source device of the present invention, can be according to the different choice of input voltage different input circuits, when using single-phase electricity, the power control unit adopts full-bridge circuit, when using the input of three-phase electricity power supply, the power control unit adopts the tri-level inversion circuit, and the power component resistance to pressure is reduced, the general field effect transistor of convenient selection.
Embodiment three, a kind of multiple power source device comprise the power control unit 1, voltage transformation unit 2 and the rectification filtering unit 3 that link to each other successively, and described power control unit 1 carries out Power Conversion by switching different Power Conversion modules to the voltage of importing; Described voltage transformation unit 2 is used for the power control unit carried out that the voltage after the output carries out conversion behind the Power Conversion; Described rectification filtering unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.
Described power control unit comprises switch module and Power Conversion module, described Power Conversion module links to each other with described voltage transformation unit, the integrated circuit structure of described switch module and described Power Conversion unit, by closed or disconnect the topological structure that described switch module changes the Power Conversion module, make the Power Conversion module present different power conversion circuit patterns.
Described power conversion circuit pattern comprises: tri-level inversion circuit and full-bridge circuit, and by closed or disconnect described switch module and realize the conversion of described Power Conversion module between tri-level inversion circuit and full-bridge circuit.
As shown in Figure 3, described one circuit comprises first capacitor C 1, second capacitor C 2, first resistance R 1 and second resistance R 2, described first capacitor C 1 and second capacitor C 2 are connected between the positive input terminal and negative input end of power control unit, first resistance R 1 is connected in parallel on first capacitor C, 1 two ends, second resistance R, 2 second capacitor C in parallel, 2 two ends, first resistance R 1 and second resistance R 2 are cascaded mutually, described one circuit also comprises the first switching tube Q1 from beginning to end, second switch pipe Q2, the 3rd switching tube Q 3 and the 4th switching tube Q4, the anode of the first diode D1 links to each other with the negative electrode of the second diode D2, the first switching tube Q1 is connected the negative electrode of the first diode D1 with the mid point of second switch pipe Q2, the 3rd switching tube Q 3 is connected the anode of the second diode D2 with the mid point of the 4th switching tube Q4, the 3rd capacitor C 3 two ends connect the negative electrode of the first diode D1 and the anode of the second diode D2 respectively, be provided with the first switch module JI 1 between the mid point of the mid point of first capacitor C 1 and second capacitor C 2 and the first diode D1 and the second diode D2, be provided with second switch module J I2 between the drain electrode of second switch pipe Q2 and the negative electrode of the first diode D1, be provided with the 3rd switch module JI3 between the anode of the source electrode of the 3rd switching tube Q3 and the second diode D2, be provided with the 4th switch module JI4 between the drain electrode of the drain electrode of the first switching tube Q1 and second switch pipe Q2, be provided with the 5th switch module JI5 between the source electrode of the source electrode of the 3rd switching tube Q3 and the 4th switching tube Q4, be provided with the 6th switch module JI6 between the mid point of the drain electrode of the 4th switching tube Q4 and the first diode D1 and second switch pipe D2, be provided with minion between the negative electrode of the drain electrode of the 4th switching tube Q4 and the first diode D1 and close module J I7.
When the input of power supply is a three-phase electricity, when being the 380V alternating current, make the first switch module JI1, second switch module J I2 and the 3rd switch module JI3 closure, the 4th switch module JI4, the 5th switch module JI5, the 6th switch module JI6 and minion are closed module J I7 and are disconnected, the one circuit is the tri-level inversion bridge circuit, wherein, first capacitor C 1 and second capacitor C 2 are dividing potential drop electric capacity, first resistance R 1 and second resistance R 2 play balanced voltage and capacitor discharge, the first diode D1 and the second diode D2 are clamping diode, be used for rectifying output circuit reversely restoring process when turn-offing and suppress the voltage reforming phenomena, the 3rd capacitor C 3 is a striding capacitance, voltage is stabilized in half of input voltage when making converter work, the first switching tube Q1, second switch pipe Q2, the first switching tube Q1 and the 4th switching tube Q4 constitute leading arm among the 3rd switching tube Q3 and the 4th switching tube Q4, second switch pipe Q2 and the 3rd switching tube Q3 are lagging leg, current transformer CT1 is used to detect the electric current of voltage transformation unit primary input terminal, the 4th capacitor C 4 is a series coupled electric capacity, plays every the effect of direct sum balanced voltage.After the three-phase electricity process phase three-wire three rectification of input, the filtering, obtain direct voltage 520V.If consider the fluctuation upper limit+20% of civil power, then can be up to 624V.Because adopt the tri-level inversion circuit, the voltage stress on each switching tube is half of input voltage.
When the input of power supply is a single-phase electricity, when being the 220V alternating current, when the first switch module JI1, second switch module J I2 and the 3rd switch module JI3 disconnection, the 4th switch module JI4, the 5th switch module JI5, the 6th switch module JI6 and minion are full-bridge circuit when closing module J I7 closure.The work of switch control unit gating full-bridge circuit after single-phase bridge rectification, filtering, obtains direct voltage 300V.If consider the fluctuation upper limit+20% of civil power, then can be up to 360V.
It is jumper switch that described first switch module to the minion is closed module.
According to the multiple power source device of the embodiment of the invention, power control unit wherein passes through switch module integrator circuit with tri-level inversion circuit and full-bridge circuit, and circuit form is simple, easy to connect, topology layout is reasonable, has improved space availability ratio, has further dwindled the volume of circuit.
Embodiment four, a kind of multiple power source device comprise the power control unit 1, voltage transformation unit 2 and the rectification filtering unit 3 that link to each other successively, and described power control unit 1 carries out Power Conversion by switching different Power Conversion modules to the voltage of importing; Described voltage transformation unit 2 is used for the power control unit carried out that the voltage after the output carries out conversion behind the Power Conversion; Described rectification filtering unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.
Described voltage transformation unit is preferably transformer, is used for the voltage after tri-level inversion circuit or the full-bridge circuit output is carried out conversion.
Rectification filtering unit is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.Described rectification filtering unit comprises at least two current rectifying and wave filtering circuits and gate-controlled switch, and the closed and disconnected of different gate-controlled switches is connected current rectifying and wave filtering circuit or be connected in parallel.
As shown in Figure 4, described current rectifying and wave filtering circuit comprises first current rectifying and wave filtering circuit 7 and second current rectifying and wave filtering circuit 8, described first current rectifying and wave filtering circuit 7 is provided with positive output end and negative output terminal, described second current rectifying and wave filtering circuit is provided with positive output end and negative output terminal, described first current rectifying and wave filtering circuit links to each other with gate-controlled switch respectively with second current rectifying and wave filtering circuit, when needs output 24V or 110V voltage, gate-controlled switch is controlled first current rectifying and wave filtering circuit and the second current rectifying and wave filtering circuit parallel connection, the output of described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit all can be exported 24V or 110V voltage, when needs output 48V or 220V voltage, gate-controlled switch controls first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit is cascaded, the negative output terminal two ends output 48V or the 220V voltage of the positive output end of described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit.
Embodiment of the invention multiple power source device, rectification filtering unit wherein passes through gate-controlled switch unit with two current rectifying and wave filtering circuit serial or parallel connections together, and exportable different magnitude of voltage has been realized the general of output voltage.
Embodiment five, a kind of multiple power source device comprise the power control unit 1, voltage transformation unit 2 and the rectification filtering unit 3 that link to each other successively, and described power control unit 1 carries out Power Conversion by switching different Power Conversion modules to the voltage of importing; Described voltage transformation unit 2 is used for the power control unit carried out that the voltage after the output carries out conversion behind the Power Conversion; Described rectification filtering unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.
Described power control unit comprises switch module and Power Conversion module, described Power Conversion module links to each other with described voltage transformation unit, the integrated circuit structure of described switch module and described Power Conversion unit, by closed or disconnect the topological structure that described switch module changes the Power Conversion module, make the Power Conversion module present different power conversion circuit patterns.
Described power conversion circuit pattern comprises: tri-level inversion circuit and full-bridge circuit, and by closed or disconnect described switch module and realize the conversion of described Power Conversion module between tri-level inversion circuit and full-bridge circuit.
Described tri-level inversion circuit 4 and full-bridge circuit 5 synthesize the one circuit by switch control unit 6, optionally connected logical tri-level inversion circuit of the closed and disconnected of different switch control units or full-bridge circuit.
As shown in Figure 5, described one circuit comprises first capacitor C 1, second capacitor C 2, first resistance R 1 and second resistance R 2, described first capacitor C 1 and second capacitor C 2 are connected between the positive input terminal and negative input end of power control unit, first resistance R 1 is connected in parallel on first capacitor C, 1 two ends, second resistance R, 2 second capacitor C in parallel, 2 two ends, first resistance R 1 and second resistance R 2 are cascaded mutually, described one circuit also comprises the first switching tube Q1 from beginning to end, second switch pipe Q2, the 3rd switching tube Q3 and the 4th switching tube Q4, the anode of the first diode D1 links to each other with the negative electrode of the second diode D2, the first switching tube Q1 is connected the negative electrode of the first diode D1 with the mid point of second switch pipe Q2, the 3rd switching tube Q 3 is connected the anode of the second diode D2 with the mid point of the 4th switching tube Q4, the 3rd capacitor C 3 two ends connect the negative electrode of the first diode D1 and the anode of the second diode D2 respectively, be provided with the first switch module JI1 between the mid point of the mid point of first capacitor C 1 and second capacitor C 2 and the first diode D1 and the second diode D2, be provided with second switch module J I2 between the drain electrode of second switch pipe Q2 and the negative electrode of the first diode D1, be provided with the 3rd switch module JI3 between the anode of the source electrode of the 3rd switching tube Q3 and the second diode D2, be provided with the 4th switch module JI4 between the drain electrode of the drain electrode of the first switching tube Q1 and second switch pipe Q2, be provided with the 5th switch module JI5 between the source electrode of the source electrode of the 3rd switching tube Q3 and the 4th switching tube Q4, be provided with the 6th switch module JI6 between the mid point of the drain electrode of the 4th switching tube Q4 and the first diode D1 and second switch pipe D2, be provided with minion between the negative electrode of the drain electrode of the 4th switching tube Q4 and the first diode D1 and close module J I7.
When the input of power supply is a three-phase electricity, when being the 380V alternating current, make the first switch module JI1, second switch module J I2 and the 3rd switch module JI3 closure, the 4th switch module JI 4, the 5th switch module JI5, the 6th switch module JI6 and minion are closed module J I7 and are disconnected, the one circuit is the tri-level inversion bridge circuit, wherein, first capacitor C 1 and second capacitor C 2 are dividing potential drop electric capacity, first resistance R 1 and second resistance R 2 play balanced voltage and capacitor discharge, the first diode D1 and the second diode D2 are clamping diode, be used for rectifying output circuit reversely restoring process when turn-offing and suppress the voltage reforming phenomena, the 3rd capacitor C 3 is a striding capacitance, voltage is stabilized in half of input voltage when making converter work, the first switching tube Q1, second switch pipe Q2, the first switching tube Q1 and the 4th switching tube Q4 constitute leading arm among the 3rd switching tube Q3 and the 4th switching tube Q4, second switch pipe Q2 and the 3rd switching tube Q3 are lagging leg, current transformer CT1 is used to detect the electric current of voltage transformation unit primary input terminal, the 4th capacitor C 4 is a series coupled electric capacity, plays every the effect of direct sum balanced voltage.After the three-phase electricity process phase three-wire three rectification of input, the filtering, obtain direct voltage 520V.If consider the fluctuation upper limit+20% of civil power, then can be up to 624V.Because adopt the tri-level inversion circuit, the voltage stress on each switching tube is half of input voltage.
When the input of power supply is a single-phase electricity, when being the 220V alternating current, when the first switch module JI1, second switch module J I2 and the 3rd switch module JI3 disconnection, the 4th switch module JI4, the 5th switch module JI5, the 6th switch module JI6 and minion are full-bridge circuit when closing module J I7 closure.The work of switch control unit gating full-bridge circuit after single-phase bridge rectification, filtering, obtains direct voltage 300V.If consider the fluctuation upper limit+20% of civil power, then can be up to 360V.
It is jumper switch that described first switch module to the minion is closed module.
Described voltage transformation unit comprises the first transformer T1 and the second transformer T2, the end of the same name of the former limit of described first transformer T1 winding connects the end of the same name of the former limit of second transformer T2 winding, the different name end of the former limit of described first transformer T1 winding connects the different name end of the former limit of second transformer T2 winding, described current transformer CT1 connects the end of the same name of the former limit of first transformer T1 winding, the 4th capacitor C 4 connects the different name end of the former limit of second transformer T2 winding, the first secondary winding that the described first transformer T1 comprises and the second secondary winding, the different name end of the first secondary winding of the first transformer T1 connects the end of the same name of the second secondary winding of the first transformer T1, the first secondary winding that the described second transformer T2 comprises and the second secondary winding, the different name end of the first secondary winding of the second transformer T2 connects the end of the same name of the second secondary winding of the second transformer T2.
Described first current rectifying and wave filtering circuit comprises the 3rd diode D3 and the 4th diode D4, the anode tap of described the 3rd diode D3 connects the end of the same name of the first secondary winding of the first transformer T1, the anode tap of the 4th diode D4 connects the different name end of the second secondary winding of the first transformer T1, described the 3rd diode D3 and the 4th diode D4 are the output rectifier diode, the 3rd resistance R 3 and the 5th capacitor C 5 series connection backs are connected in parallel with described the 3rd diode D3, described the 3rd resistance R 3 and the 5th capacitor C 5 constitute the spike absorption circuit of the 3rd diode D3, the 4th resistance R 4 and the 6th capacitor C 6 series connection backs are connected in parallel with described the 4th diode D4, the cathode terminal of described the 4th diode D4 connects the cathode terminal of the 3rd diode D3, the 4th resistance R 4 and the 6th capacitor C 6 constitute the spike absorption circuit of the 4th diode D4, the cathode terminal of described the 3rd diode D3 connects an end of first inductance L 1, the other end of first inductance L 1 connects the anode tap of the 7th diode D7, the cathode terminal of the 7th diode D7 is the positive output end of first current rectifying and wave filtering circuit, first inductance L 1 is an output inductor, the negative output terminal of first current rectifying and wave filtering circuit connects the different name end of the first secondary winding of the first transformer T1, first current rectifying and wave filtering circuit also comprises between connection positive output end and the negative output terminal and the 7th capacitor C 7 parallel with one another, the 8th capacitor C 8, the 9th capacitor C 9 and the 5th resistance R 5, described the 7th capacitor C 7 is an electrochemical capacitor, the anodal positive output end that connects, negative pole connects negative output terminal, described the 8th capacitor C 8 is an electrochemical capacitor, the anodal positive output end that connects, negative pole connects negative output terminal, described the 7th capacitor C 7 and the 8th capacitor C 8 are output filter capacitor, the 9th capacitor C 9 is a high frequency capacitance, playing absorbing high-frequency disturbs, described the 5th resistance R 5 is a load resistance, described positive output end also connects the end of the first ground capacity CY1, the other end ground connection of the first ground capacity CY1, the described first ground capacity CY1 plays the filtering common mode disturbances.
Described second current rectifying and wave filtering circuit comprises the 5th diode D5 and the 6th diode D6, the anode tap of described the 5th diode D5 connects the end of the same name of the first secondary winding of the second transformer T2, the anode tap of the 6th diode D6 connects the different name end of the second secondary winding of the second transformer T2, described the 5th diode D5 and the 6th diode D6 are the output rectifier diode, the 7th resistance R 7 and the tenth capacitor C 10 series connection backs are connected in parallel with described the 5th diode D5, described the 5th resistance R 5 and the tenth capacitor C 10 constitute the spike absorption circuit of the 5th diode D5, the 8th resistance R 8 and the 11 capacitor C 11 series connection backs are connected in parallel with described the 6th diode D6, the cathode terminal of described the 6th diode D6 connects the cathode terminal of the 5th diode D5, the 8th resistance R 8 and the 11 capacitor C 11 constitute the spike absorption circuit of the 6th diode D6, the cathode terminal of described the 5th diode D5 connects an end of second inductance L 2, the other end of second inductance L 2 is the positive output end of second current rectifying and wave filtering circuit, second inductance L 2 is an output inductor, the negative output terminal of second current rectifying and wave filtering circuit connects the different name end of the first secondary winding of the second transformer T2, second current rectifying and wave filtering circuit also comprises between connection positive output end and the negative output terminal and the 12 capacitor C 12 parallel with one another, the 13 capacitor C 13, the 14 capacitor C 14 and the 9th resistance R 9, described the 12 capacitor C 12 is an electrochemical capacitor, the anodal positive output end that connects, negative pole connects negative output terminal, described the 13 capacitor C 13 is an electrochemical capacitor, the anodal positive output end that connects, negative pole connects negative output terminal, described the 12 capacitor C 12 and the 13 capacitor C 13 are output filter capacitor, the 14 capacitor C 14 is a high frequency capacitance, playing absorbing high-frequency disturbs, described the 9th resistance R 9 is a load resistance, described negative output terminal also connects the end of the second ground capacity CY2, the other end ground connection of the second ground capacity CY2, the described second ground capacity CY2 plays the filtering common mode disturbances.
Be provided with a plurality of gate-controlled switches between described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit, be provided with the first gate-controlled switch JO1 between the positive output end of the negative output terminal of described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit, the negative output terminal of the negative output terminal of described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit is provided with the second gate-controlled switch JO2, the positive output end of the positive output end of described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit is connected by the 8th diode D8 and the 3rd gate-controlled switch JO3, the cathode terminal of the 8th diode connects the positive output end of first current rectifying and wave filtering circuit, and the positive output end of the positive output end of described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit also is provided with the 4th gate-controlled switch JO4.When output 48V or 220V, the closed first gate-controlled switch JO1 disconnects the second gate-controlled switch JO2, the 3rd gate-controlled switch JO3 and the 4th gate-controlled switch JO4, thereby realizes the series connection output of first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit; When output 24V or 110V, disconnect the first gate-controlled switch JO1, the closed second gate-controlled switch JO2, the 3rd gate-controlled switch JO3 and the 4th gate-controlled switch JO4 can realize the output of first current rectifying and wave filtering circuit and the second current rectifying and wave filtering circuit parallel connection.
A kind of implementation of the embodiment of the invention is that described gate-controlled switch is a jumper switch.
The another kind of implementation of the embodiment of the invention also comprises the controller that is connected with described gate-controlled switch, and described controller control gate-controlled switch closure or disconnection realize the serial or parallel connection between the current rectifying and wave filtering circuit.
According to the multiple power source device of the embodiment of the invention, power control unit wherein passes through switch module integrator circuit with tri-level inversion circuit and full-bridge circuit, and circuit form is simple, easy to connect, topology layout is reasonable, has improved space availability ratio, has further dwindled the volume of circuit.Simultaneously, rectification filtering unit wherein by gate-controlled switch together with two current rectifying and wave filtering circuit serial or parallel connections, exportable different magnitude of voltage has been realized the general of output voltage.
Used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a multiple power source device is characterized in that: comprise the power control unit, voltage transformation unit and the rectification filtering unit that link to each other successively;
Described power control unit carries out Power Conversion by switching different Power Conversion modules to the voltage of importing;
Described voltage transformation unit is used for the voltage that the power control unit carries out exporting behind the Power Conversion is carried out conversion;
Described rectification filtering unit is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.
2. multiple power source device according to claim 1 is characterized in that: described power control unit comprises: switch control unit and at least two power models;
Described switch control unit is used to detect the magnitude of voltage of input, and carries out Power Conversion according to the different choice Power Conversion module of magnitude of voltage;
Described at least two Power Conversion modules link to each other with voltage transformation unit respectively, are used to accept switch control unit
Control, input voltage is carried out Power Conversion, and the voltage after the conversion is exported to voltage transformation unit.
3. multiple power source device according to claim 2, it is characterized in that: described at least two Power Conversion modules are respectively full-bridge circuit and half-bridge circuit, described switch control unit links to each other with half-bridge circuit with full-bridge circuit respectively, and described switch control unit is connected full-bridge circuit or half-bridge circuit according to the different choice of input voltage value.
4. multiple power source device according to claim 2, it is characterized in that: described at least two Power Conversion modules are respectively tri-level inversion circuit and full-bridge circuit, described switch control unit links to each other with full-bridge circuit with the tri-level inversion circuit respectively, and described switch control unit is connected tri-level inversion circuit or full-bridge circuit according to the different choice of input voltage value.
5. multiple power source device according to claim 1, it is characterized in that, described power control unit comprises switch module and Power Conversion module, described Power Conversion module links to each other with described voltage transformation unit, the integrated circuit structure of described switch module and described Power Conversion unit, by closed or disconnect the topological structure that described switch module changes the Power Conversion module, make the Power Conversion module present different power conversion circuit patterns.
6. multiple power source device according to claim 5, it is characterized in that, described power conversion circuit pattern comprises: tri-level inversion circuit and full-bridge circuit, and by closed or disconnect described switch module and realize the conversion of described Power Conversion module between tri-level inversion circuit and full-bridge circuit.
7. multiple power source device according to claim 6, it is characterized in that: described integrated circuit structure comprises first electric capacity, second electric capacity, first resistance and second resistance, described first electric capacity and second capacitances in series are between the positive input terminal and negative input end of power control unit, first resistance is connected in parallel on the first electric capacity two ends, second resistance, the second electric capacity two ends in parallel, first resistance and second resistance are cascaded mutually, also comprise first switching tube from beginning to end, the second switch pipe, the 3rd switching tube and the 4th switching tube, the anode of first diode links to each other with the negative electrode of second diode, first switching tube is connected the negative electrode of first diode with the mid point of second switch pipe, the 3rd switching tube is connected the anode of second diode with the mid point of the 4th switching tube, the 3rd electric capacity two ends connect the negative electrode of first diode and the anode of second diode respectively, be provided with first switch module between the mid point of the mid point of first electric capacity and second electric capacity and first diode and second diode, be provided with the second switch module between the negative electrode of the drain electrode of second switch pipe and first diode, be provided with the 3rd switch module between the anode of the source electrode of the 3rd switching tube and second diode, be provided with the 4th switch module between the drain electrode of the drain electrode of first switching tube and first switching tube, be provided with the 5th switch module between the source electrode of the source electrode of the 3rd switching tube and the 4th switching tube, be provided with the 6th switch module between the mid point of the drain electrode of the 4th switching tube and first diode and second switch pipe, be provided with minion between the negative electrode of the drain electrode of the 4th switching tube and first diode and close module, when first switch module to the, three switch module closures, the 4th switch module to the minion is the tri-level inversion bridge circuit when closing the module disconnection, when first switch module to the, three switch modules disconnect, be full-bridge circuit during the module closure of the 4th switch module to the minion pass.
8. multiple power source device according to claim 7 is characterized in that: described switch module is a jumper switch.
9. according to each described multiple power source device in the claim 1 to 8, it is characterized in that: described rectification filtering unit comprises at least two current rectifying and wave filtering circuits and gate-controlled switch, and the closed and disconnected of different gate-controlled switches is connected current rectifying and wave filtering circuit or be connected in parallel.
10. multiple power source device according to claim 9, it is characterized in that: described rectification filtering unit comprises first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit, be provided with a plurality of gate-controlled switches between described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit, be provided with first gate-controlled switch between the positive output end of the negative output terminal of described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit, be provided with second gate-controlled switch between the negative output terminal of the negative output terminal of described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit, connect between the positive output end of the positive output end of described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit by the 8th diode and the 3rd gate-controlled switch, the cathode terminal of the 8th diode connects the positive output end of first current rectifying and wave filtering circuit, also be provided with the 4th gate-controlled switch between the positive output end of the positive output end of described first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit, when closed first gate-controlled switch, disconnect second gate-controlled switch, the 3rd gate-controlled switch and the 4th gate-controlled switch are realized the series connection output of first current rectifying and wave filtering circuit and second current rectifying and wave filtering circuit; When disconnecting first gate-controlled switch, closed second gate-controlled switch, the 3rd gate-controlled switch and the 4th gate-controlled switch can be realized the output of first current rectifying and wave filtering circuit and the second current rectifying and wave filtering circuit parallel connection.
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| CN 201010527567 CN102064718B (en) | 2010-10-29 | 2010-10-29 | Universal power supply device |
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| CN 201010527567 CN102064718B (en) | 2010-10-29 | 2010-10-29 | Universal power supply device |
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