CN202353482U - Multi-branch loading driving circuit - Google Patents
Multi-branch loading driving circuit Download PDFInfo
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- CN202353482U CN202353482U CN2011205513250U CN201120551325U CN202353482U CN 202353482 U CN202353482 U CN 202353482U CN 2011205513250 U CN2011205513250 U CN 2011205513250U CN 201120551325 U CN201120551325 U CN 201120551325U CN 202353482 U CN202353482 U CN 202353482U
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Abstract
The utility model mainly aims at providing a multi-branch loading driving circuit, which can reduce loss and cost and balance multi-branch loading current. The multi-branch loading driving circuit comprises a double-layer composite circuit, a coupling capacitor, an energy conversion circuit, an input power supply Vin and an additional voltage Vf. The double-layer composite circuit is formed by a series branch X, a series branch Y and the coupling capacitor.
Description
Technical field
The present invention relates to the drive circuit of the identical multichannel loading of size of current.
Background technology
In plurality of applications, need drive multichannel loading simultaneously, and require the size of current of every road load identical; Traditional method is in the load of every road, all to use current adjustment unit, and the size of current that makes the load of every road is a set point, reaches the identical purpose of electric current; For example, simultaneously luminous in order to make many LEDs, and reach the identical purpose of LED characteristic; Require each LED operating current to equate; Prior art need be used a plurality of current adjustment units, has the shortcoming that loss is big, cost is high, with reference to figure 1.
Summary of the invention
A kind of multichannel loading drive circuit that main purpose of the present invention is to provide and reduces the wastage, reduces cost; And electric current that can the balance multichannel loading; The multichannel loading drive circuit comprises: two-layer compound circuit, coupling capacitance, transducing circuit, input power supply Vin can also comprise auxiliary voltage Vf.
Connected mode is: the two-layer compound circuit is made up of series arm X, series arm Y and coupling capacitance; Series arm X is by n known rectification filtering unit, can simultaneously forward biased principle series connection constitute according to the rectification unit of all rectification filtering units, and series arm X has head end and tail end and n-1 series connection node; This node is called XJ1 successively; XJ2 ... XJ (n-1), n are natural number and more than or equal to 3, series arm Y is by n diode; Can simultaneously forward biased principle series connection constitute according to all diodes; Series arm Y forms head end and tail end and n-1 series connection node, and this node is called YJ1, YJ2 successively ... YJ (n-1); The two ends of coupling capacitance between YJ1 and the XJ1, are connected between YJ3 and the XJ3 respectively, are connected between the odd number node of odd number node and series arm X of series arm Y.
A kind of multichannel loading drive circuit also comprises other coupling capacitance; One end of other coupling capacitance connects the even number series connection node of the series arm Y in the two-layer compound circuit respectively; The other end of this other coupling capacitance both can connect input power supply Vin output, can also connect common wire.
The head end of series arm X in the two-layer compound circuit can connect the output of Vin, also can connect common wire, can also connect auxiliary voltage; The tail end of series arm X in the two-layer compound circuit can connect the output of Vin, also can connect common wire, can also connect auxiliary voltage; The even number series connection node of series arm X in the two-layer compound circuit both can connect the output of Vin, also can connect common wire.
A kind of multichannel loading drive circuit of the present invention also comprises the transducing circuit that inductance value L0 and electric capacity L0 series connection constitute, and this transducing circuit forms inductance end, capacitance terminal and three nodes of tie point VJ.
The head end of series arm Y in the two-layer compound circuit can connect the output of Vin, can connect common wire, can connect the node VJ of transducing circuit; The tail end of series arm Y in the two-layer compound circuit can connect the output of Vin, can connect common wire, can connect the node VJ of transducing circuit.
Known rectification filtering unit comprises two parts: i.e. rectification unit and filter unit, and referring to Fig. 2, rectification unit is with the direct current of input voltage rectification for fluctuation; Filter unit is filtered into the smooth direct current electricity with the direct current of fluctuation, drives loaded work piece, and rectification unit and filter unit are series relationship; According to the character of series circuit, rectification unit and filter unit can transpositions, still exist among the series arm X of this character in the two-layer compound circuit; Rectification unit is made up of a diode at least, and filter unit is made up of an electric capacity at least, and the present invention is reduced to Fig. 3 and representes; D1 representes rectification unit, and C1 representes filter unit.
In a kind of multichannel loading drive circuit of the present invention; Exportable DC pulse, the alternating-current pulse of comprising of input power supply Vin; Can produce the part output of pulse voltage by traditional BOOST, BUCK, BUCK-BOOST, SEPIC, CUK, ZETA circuit, also can be by the part output that can produce pulse voltage in traditional Flyback, Forward, Half-Bridge, the Full-Bridge circuit.
Auxiliary voltage Vf comprises known any voltage, also can be by obtaining the use of can connecting with the series arm X in the two-layer compound circuit, the use of perhaps connecting with load behind the Vin rectifying and wave-filtering.
Load: load comprises that light-emitting diode, resistance, rechargeable battery etc. use the equipment of direct current supply; Because of there being coupling capacitance, load short circuits or filter unit short circuit can not cause input power supply Vin abnormal work, and the energy of Vin will be stored in the coupling capacitance, can the working load short circuit or the mode of filter unit short circuit adjust the quantity of load.
All components and parts in a kind of multichannel loading drive circuit of the present invention; Comprising two-layer compound circuit, coupling capacitance, transducing circuit, input power supply Vin, auxiliary voltage Vf, load; All can insert known buffer element impacts to reduce voltage and current; Buffer element comprises magnetic bead, inductance, and capacitance-resistance absorbs network.
Description of drawings
Fig. 1 is traditional multichannel loading drive circuit.
Fig. 2 is known rectification filtering unit block diagram.
Fig. 3 is a kind of known rectification filtering unit.
Fig. 4 is a kind of two-layer compound circuit.
Fig. 5 is a first preferred embodiment of the invention circuit framework sketch map.
Fig. 6 is a second preferred embodiment of the invention circuit framework sketch map.
Fig. 7 is a third preferred embodiment of the invention circuit framework sketch map.
Fig. 8 is a four preferred embodiment of the invention circuit framework sketch map.
Fig. 9 is a fifth preferred embodiment of the invention circuit framework sketch map.
Figure 10 is a sixth preferred embodiment of the invention circuit framework sketch map.
Wherein description of reference numerals is following
C0-1, C0-2, C0-3, C0-4, C0-5, a plurality of coupling capacitances of C0-(n-1);
C1-1, C1-2, C1-3, C1-4, C1-5, C1-6, many filter units of C1-n;
D1-1, D1-2, D1-3, D1-4, D1-5, D1-6, many rectification units of D1-n;
DY-1, DY-2, DY-3, DY-4, DY-5, DY-6, many diodes of DY-n;
Vin: input power supply;
Vf: auxiliary voltage;
Load, Load1 ... Loadn: a plurality of loads;
XJ1、XJ2、XJ3、XJ4、XJ5……XJ(n-1)；
YJ1、YJ2、YJ3、YJ4、YJ5……YJ(n-1)。
Embodiment
Some exemplary embodiments that embody characteristic of the present invention and advantage will be described in detail in the explanation of back segment.It should be understood that the present invention can have various variations in different schemes, it does not all depart from the scope of the present invention, and explanation wherein and accompanying drawing be used as the usefulness of explanation in itself, but not in order to restriction the present invention.
See also Fig. 5, for the circuit framework sketch map of first preferred embodiment of the invention, as shown in Figure 5; This embodiment is six road load driving circuits, and this circuit comprises: input power supply Vin, five coupling capacitances, two-layer compound circuit, transducing circuit, and its connected mode is: the two-layer compound circuit is made up of series arm X, series arm Y and coupling capacitance: series arm X is by six known rectification filtering units; Can simultaneously forward biased principle series connection constitute according to all rectification units, series arm X has head end and tail end and 5 series connection nodes, and this node is called XJ1 successively; XJ2, XJ3, XJ4; XJ5, series arm Y can be made up of according to all diodes six diodes in simultaneously forward biased principle series connection; Series arm Y forms head end and tail end and 5 series connection nodes, and this node is called YJ1, YJ2 successively; YJ3, YJ4, YJ5; One end of five coupling capacitances is connected on five nodes of series arm Y, and the other end of coupling capacitance C0-2 and C0-4 that is connected the even number node of series arm Y is connected the output of input power supply Vin; The connected mode of coupling capacitance that is connected the odd number node of series arm Y is: coupling capacitance C0-1 is connected between node YJ1 and the nodes X J1; Coupling capacitance C0-3 is connected between node YJ3 and the nodes X J3, and coupling capacitance C0-5 is connected between node YJ5 and the nodes X J5; Even number nodes X J2, the XJ4 of series arm X connect common wire, and the head end of series arm X all is connected common wire with tail end; The tail end of series arm Y connects the Vin output, and the head end of series arm Y connects the VJ node of transducing circuit, and transducing circuit inductance end connects common wire, and the capacitance terminal of transducing circuit connects the output of Vin.
The operation principle of the circuit framework sketch map of first preferred embodiment of the invention shown in Figure 5 is: when the output voltage of input power supply Vin raise, the electric current that the voltage of this rising forms was through capacitor C 0, inductance L 0 energy storage; The electric current that the voltage of this rising forms passes through C0, DY-1, C0-1, D1-2, C1-2 simultaneously; Form level and smooth direct voltage at the C1-2 two ends; Drive load Load2 work, the electric current that the voltage of this rising forms through C0-2, DY-3, C0-3, D1-4, C1-4, forms level and smooth direct voltage at the C1-4 two ends simultaneously; Drive load Load4 work; The electric current that the voltage of this rising forms through C0-4, DY-5, C0-5, D1-6, C1-6, forms level and smooth direct voltage at the C1-6 two ends simultaneously, drives load Load6 work; When the output voltage of input power supply Vin reduces, inductance L 0 and capacitor C 0 energy exchange, the electric current that the voltage of this reduction forms is through C1-1, D1-1, C0-1, DY-2, C0-2; Form level and smooth direct voltage at the C1-1 two ends, drive load Load1 work, the electric current that the voltage of this reduction forms is simultaneously through C1-3, D1-3, C0-3, DY-4, C0-4; Form level and smooth direct voltage at the C1-3 two ends, drive load Load3 work, the electric current that the voltage of this reduction forms is simultaneously through C1-5, D1-5, C0-5, DY-6; Form level and smooth direct voltage at the C1-5 two ends, drive load Load5 work, can find out; The energy of load provides through coupling capacitance indirectly; And coupling capacitance can be charged to higher voltage when load current is big, and load current is reduced, and coupling capacitance can hour be charged to lower voltage at load current; Make load current become big, thus the electric current of a plurality of loads of balance.
See also Fig. 6, for the circuit framework sketch map of second preferred embodiment of the invention, as shown in Figure 6; This embodiment is six road load driving circuits, and this circuit comprises: input power supply Vin, five coupling capacitances, two-layer compound circuit, transducing circuit, and its connected mode is: the two-layer compound circuit is made up of series arm X, series arm Y and coupling capacitance: series arm X is by six known rectification filtering units; Can simultaneously forward biased principle series connection constitute according to all rectification units, series arm X has head end and tail end and 5 series connection nodes, and this node is called XJ1 successively; XJ2, XJ3, XJ4; XJ5, series arm Y can be made up of according to all diodes six diodes in simultaneously forward biased principle series connection; Series arm Y forms head end and tail end and 5 series connection nodes, and this node is called YJ1, YJ2 successively; YJ3, YJ4, YJ5; One end of five coupling capacitances is connected on five nodes of series arm Y, and the coupling capacitance C0-2 and the other end of C0-4 that are connected the even number node of series arm Y are connected common wire; The connected mode of coupling capacitance that is connected the odd number node of series arm Y is: coupling capacitance C0-1 is connected between node YJ1 and the nodes X J1; Coupling capacitance C0-3 is connected between node YJ3 and the nodes X J3; Coupling capacitance C0-5 is connected between node YJ5 and the nodes X J5, and the even number nodes X J2 of series arm X, XJ4 connect the Vin output; The head end of series arm X all is connected the Vin output with tail end, and the head end of series arm Y connects common wire, and the tail end of series arm Y connects the VJ node of transducing circuit, and transducing circuit inductance end connects the output of Vin, and the capacitance terminal of transducing circuit connects common wire.
The operation principle of the circuit framework sketch map of second preferred embodiment of the invention shown in Figure 6 is: when the output voltage of input power supply Vin raises; The electric current that the voltage of this rising forms passes through capacitor C 0, inductance L 0 energy storage, and the electric current that the voltage of this rising forms is through C1-1, D1-1, C0-1, DY-2, C0-2; Form level and smooth direct voltage at the C1-1 two ends; Drive load Load1 work, the electric current that the voltage of this rising forms through C1-3, D1-3, C0-3, DY-4, C0-4, forms level and smooth direct voltage at the C1-3 two ends simultaneously; Drive load Load3 work; The electric current that the voltage of this rising forms through C1-5, D1-5, C0-5, DY-6, C0, forms level and smooth direct voltage at the C1-5 two ends simultaneously, drives load Load5 work; When the output voltage of input power supply Vin reduces; The voltage of this reduction causes L0 and C0 energy exchange, and the electric current that the voltage of this reduction forms forms level and smooth direct voltage through DY-1, C0-1, D1-2, C1-2 at the C1-2 two ends; Drive load Load2 work; The electric current that the voltage of this reduction forms through C0-2, DY-3, C0-3, D1-4, C1-4, forms level and smooth direct voltage at the C1-4 two ends simultaneously, drives load Load4 work; The electric current that the voltage of this reduction forms is simultaneously through C0-4, DY-5, C0-5, D1-6, C1-6; Form level and smooth direct voltage at the C1-6 two ends, drive load Load6 work, the principle of the electric current of a plurality of loads of balance is identical with first preferred embodiment shown in Figure 5.
See also Fig. 7, for the circuit framework sketch map of third preferred embodiment of the invention, as shown in Figure 7; This embodiment is four road load driving circuits, and this circuit comprises: input power supply Vin, three coupling capacitances, two-layer compound circuit, transducing circuit, and its connected mode is: the two-layer compound circuit is made up of series arm X, series arm Y and coupling capacitance: series arm X is by four known rectification filtering units; Can simultaneously forward biased principle series connection constitute according to all rectification units, series arm X has head end and tail end and 3 series connection nodes, and this node is called XJ1 successively; XJ2, XJ3, series arm Y is by four diodes; Can simultaneously forward biased principle series connection constitute according to all diodes, series arm Y forms head end and tail end and three series connection nodes, and this node is called YJ1 successively; YJ2, YJ3; One end of three coupling capacitances is connected on three nodes of series arm Y, and the other end of coupling capacitance C0-2 that is connected the even number node of series arm Y connects the output of input power supply Vin; The connected mode of coupling capacitance that is connected the odd number node of series arm Y is: coupling capacitance C0-1 is connected between node YJ1 and the nodes X J1, and coupling capacitance C0-3 is connected between node YJ3 and the nodes X J3; The even number nodes X J2 of series arm X connects common wire, and the head end of series arm X all is connected common wire with tail end; The head end of series arm Y connects the VJ node of transducing circuit, and the capacitance terminal of transducing circuit connects the output of Vin, and transducing circuit inductance end connects common wire, and the tail end of series arm Y connects common port.
The operation principle of the circuit framework sketch map of third preferred embodiment of the invention shown in Figure 7 is: when the output voltage of input power supply Vin raise, the electric current that the voltage of this rising forms was through capacitor C 0, inductance L 0 energy storage; The electric current that the voltage of this rising forms passes through C0 simultaneously; DY-1, C0-1, D1-1, C1-1 form level and smooth direct voltage at the C1-1 two ends; Drive load Load1 work; The electric current that the voltage of this rising forms through C0-2, DY-3, C0-3, D1-3, C1-3, forms level and smooth direct voltage at the C1-3 two ends simultaneously, drives load Load3 work; When the output voltage of input power supply Vin reduces; The voltage of this reduction causes L0 and C0 energy exchange, and the electric current that forms when Vin voltage reduces through C1-2, D1-2, C0-1, DY-2, C0-2, forms level and smooth direct voltage at the C1-2 two ends simultaneously; Drive load Load2 work; The electric current that forms when Vin voltage reduces through C1-4, D1-4, C0-3, DY-4, forms level and smooth direct voltage at the C1-4 two ends simultaneously, drives load Load4 work.The principle of the electric current of a plurality of loads of balance is identical with first preferred embodiment shown in Figure 5.
See also Fig. 8; For the circuit framework sketch map of four preferred embodiment of the invention, as shown in Figure 8, this embodiment is the two-way load driving circuits; This circuit comprises: input power supply Vin, three coupling capacitances, two-layer compound circuit, transducing circuit, auxiliary voltage Vf; Its connected mode is: identical with the 3rd preferred embodiment of Fig. 7, difference is that with after the first, the 3rd filter unit short circuit circuit becomes the load of driving two-way; As shown in Figure 8, two loads that are retained form the anodal connected mode of common load.
The operation principle of the circuit framework sketch map of four preferred embodiment of the invention shown in Figure 8 is: when the output voltage of input power supply Vin raise, the electric current that the voltage of this rising forms was through capacitor C 0, inductance L 0 energy storage; Because of C1-1 by short circuit, the electric current that the voltage of this rising forms is simultaneously through C0, DY-1; C0-1, D1-1, Vf increase the C0-1 energy storage, because of C1-3 by short circuit; The electric current that the voltage of this rising forms increases the C0-3 energy storage simultaneously through C0-2, DY-3, C0-3, D1-3; When the output voltage of input power supply Vin reduces; The voltage of this reduction causes L0 and C0 energy exchange, and the electric current that forms when Vin voltage reduces through C1-2, D1-2, C0-1, DY-2, C0-2, forms level and smooth direct voltage at the C1-2 two ends simultaneously; Drive load Load2 work; The electric current that forms when Vin voltage reduces through C1-4, D1-4, C0-3, DY-4, forms level and smooth direct voltage at the C1-4 two ends simultaneously, drives load Load4 work.The principle of the electric current of a plurality of loads of balance is identical with first preferred embodiment shown in Figure 5.
See also Fig. 9, for the circuit framework sketch map of fifth preferred embodiment of the invention, as shown in Figure 9; This embodiment is four road load driving circuits, and this circuit comprises: input power supply Vin, three coupling capacitances, two-layer compound circuit, transducing circuit, and its connected mode is: the two-layer compound circuit is made up of series arm X, series arm Y and coupling capacitance: series arm X is by four known rectification filtering units; Can simultaneously forward biased principle series connection constitute according to all rectification units, series arm X has head end and tail end and 3 series connection nodes, and this node is called XJ1 successively; XJ2, XJ3, series arm Y is by four diodes; Can simultaneously forward biased principle series connection constitute according to all diodes, series arm Y forms head end and tail end and three series connection nodes, and this node is called YJ1 successively; YJ2, YJ3; One end of three coupling capacitances is connected on three nodes of series arm Y, and the other end of coupling capacitance C0-2 that is connected the even number node of series arm Y connects the output of input power supply Vin; The connected mode of coupling capacitance that is connected the odd number node of series arm Y is: coupling capacitance C0-1 is connected between node YJ1 and the nodes X J1, and coupling capacitance C0-3 is connected between node YJ3 and the nodes X J3; The even number nodes X J2 of series arm X connects common wire, and the head end of series arm X all is connected common wire with tail end; The head end of series arm Y connects the Vin output, and the tail end of series arm Y connects the VJ node of transducing circuit, and the capacitance terminal of transducing circuit connects the output of Vin, and transducing circuit inductance end connects common wire.
The operation principle of the circuit framework sketch map of fifth preferred embodiment of the invention shown in Figure 9 is: when the output voltage of input power supply Vin raise, the electric current that the voltage of this rising forms was through capacitor C 0, inductance L 0 energy storage; The electric current that the voltage of this rising forms through C0-2, DY-2, C0-1, D1-2, C1-2, forms level and smooth direct voltage at the C1-2 two ends simultaneously, drives load Load2 work; The electric current that the voltage of this rising forms passes through C0 simultaneously, DY-4, and C0-3, D1-4, C1-4 form level and smooth direct voltage at the C1-4 two ends, drive load Load4 work; When the output voltage of input power supply Vin reduces; The voltage of this reduction causes L0 and C0 energy exchange; The electric current that forms when Vin voltage reduces through C1-1, D1-1, C0-1, DY-1, forms level and smooth direct voltage at the C1-1 two ends simultaneously, drives load Load1 work; The electric current that forms when Vin voltage reduces through C1-3, D1-3, C0-3, DY-3, C0-2, forms level and smooth direct voltage at the C1-3 two ends simultaneously, drives load Load3 work.The principle of the electric current of a plurality of loads of balance is identical with first preferred embodiment shown in Figure 5.
See also Figure 10, for the circuit framework sketch map of sixth preferred embodiment of the invention, shown in figure 10; This embodiment is four road load driving circuits, and this circuit comprises: input power supply Vin, three coupling capacitances, two-layer compound circuit, transducing circuit and inductance L in, and its connected mode is: the output of input power supply Vin connects the end of inductance L in; The other end of Lin is called the output of Lin, and the two-layer compound circuit is made up of series arm X, series arm Y and coupling capacitance: series arm X can be made up of according to all rectification units four known rectification filtering units in simultaneously forward biased principle series connection; Series arm X has head end and tail end and 3 series connection nodes, and this node is called XJ1, XJ2 successively; XJ3, series arm Y can be made up of according to all diodes four diodes in simultaneously forward biased principle series connection; Series arm Y forms head end and tail end and 3 series connection nodes; This node is called YJ1, YJ2, YJ3 successively; One end of three coupling capacitances is connected on three nodes of series arm Y, and the other end of coupling capacitance C0-2 that is connected the even number node of series arm Y connects common wire; The connected mode of coupling capacitance that is connected the odd number node of series arm Y is: coupling capacitance C0-1 is connected between node YJ1 and the nodes X J1; Coupling capacitance C0-3 is connected between node YJ3 and the nodes X J3, and the even number nodes X J2 of series arm X connects the Lin output; The head end of series arm X all is connected the Lin output with tail end; The head end of series arm Y connects the VJ node of transducing circuit, and the tail end of series arm Y connects common wire, and transducing circuit inductance end connects the output of Lin, and the capacitance terminal of transducing circuit connects common wire.
The operation principle of the circuit framework sketch map of sixth preferred embodiment of the invention shown in Figure 10 is: when the output voltage of input power supply Vin raises; The voltage of inductance L in output also raises, and the electric current that the voltage of this rising forms is through capacitor C 0, inductance L 0 energy storage; The electric current that the voltage that Lin raises forms is through C1-1, D1-1, C0-1, DY-1, C0; Form level and smooth direct voltage at the C1-1 two ends, drive load Load1 work, the electric current that the voltage that Lin raises forms is simultaneously through C1-3, D1-3, C0-3, DY-3, C0-2; Form level and smooth direct voltage at the C1-3 two ends, drive load Load3 work; When the output voltage of input power supply Vin reduced, the voltage of Lin output also reduced, and the voltage that Lin reduces causes L0 and C0 energy exchange; The electric current that the voltage that Lin reduces forms is through C0-2, DY-2, C0-1, D1-2, C1-2; Form level and smooth direct voltage at the C1-2 two ends, drive load Load2 work, the electric current that the voltage of this reduction forms is simultaneously through DY-4, C0-3, D1-4, C1-4; Form level and smooth direct voltage at the C1-4 two ends, drive load Load4 work.The principle of the electric current of a plurality of loads of balance is identical with first preferred embodiment shown in Figure 5, and the existence because of inductance L in has slowed down current changing rate, thereby improves the problem of high-frequency noise and current stress.
In sum, multichannel loading drive circuit of the present invention has used the traditional driving mode that is different from, and the present invention can drive two the tunnel, the three tunnel, the four tunnel, the five tunnel, the six tunnel until the load of n road with the identical mode of size of current.
What it will be appreciated that is: the foregoing description is just to explanation of the present invention; Rather than limitation of the present invention; The present invention can carry out various modifications and distortion by those skilled in the art; Any innovation and creation that do not exceed in the connotation scope of the present invention all do not break away from the protection range of accompanying claims.
Claims (10)
1. multichannel loading drive circuit, it comprises: the two-layer compound circuit is characterized in that: the two-layer compound circuit is made up of series arm X, series arm Y and coupling capacitance; Series arm X is by n known rectification filtering unit; All rectification units according to this rectification filtering unit can constitute in simultaneously forward biased principle series connection; The series arm X-shaped becomes head end and tail end and n-1 series connection node; This node is called XJ1, XJ2 successively ... XJ (n-1), n are natural number and more than or equal to 3; Series arm Y can be made up of according to all diodes n diode in simultaneously forward biased principle series connection, and series arm Y forms head end and tail end and n-1 series connection node, and this node is called YJ1, YJ2 successively ... YJ (n-1); The two ends of coupling capacitance are connected between YJ1 and the XJ1, are connected between YJ3 and the XJ3, are connected between the odd number node of odd number node and series arm X of series arm Y.
2. a kind of multichannel loading drive circuit as claimed in claim 1; It is characterized in that; It also comprises other coupling capacitance; One end of other coupling capacitance connects the even number series connection node of the series arm Y in the two-layer compound circuit respectively, and the other end of this other coupling capacitance both can connect the output of input power supply Vin, also can connect common wire.
3. a kind of multichannel loading drive circuit as claimed in claim 1 is characterized in that the head end of the series arm X in the two-layer compound circuit can connect the output of Vin, also can connect common wire, can also connect auxiliary voltage.
4. a kind of multichannel loading drive circuit as claimed in claim 1 is characterized in that the tail end of the series arm X in the two-layer compound circuit can connect the output of Vin, also can connect common wire, can also connect auxiliary voltage.
5. a kind of multichannel loading drive circuit as claimed in claim 1 is characterized in that, the even number series connection node of the series arm X in the two-layer compound circuit both can connect the output of Vin, also can connect common wire.
6. a kind of multichannel loading drive circuit as claimed in claim 1 is characterized in that, it also comprises the transducing circuit that inductance and capacitances in series constitute, and this transducing circuit forms inductance end, capacitance terminal and three nodes of tie point VJ.
7. a kind of multichannel loading drive circuit as claimed in claim 1 is characterized in that the head end of series arm Y can connect the output of Vin, can connect common wire, can connect the node VJ of transducing circuit.
8. a kind of multichannel loading drive circuit as claimed in claim 1 is characterized in that the tail end of series arm Y can connect the output of Vin, can connect common wire, can connect the node VJ of transducing circuit.
9. a kind of multichannel loading drive circuit as claimed in claim 1; It is characterized in that above-mentioned known rectification filtering unit comprises rectification unit and filter unit, rectification unit will be imported power rectifier; The voltage filter of filter unit after with rectification is level and smooth direct voltage, drives loaded work piece.
10. a kind of multichannel loading drive circuit according to claim 1; It is characterized in that all components and parts in the multichannel loading drive circuit all can insert known buffer element and impact to reduce voltage and current, buffer element comprises magnetic bead; Inductance, capacitance-resistance absorbs network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205513250U CN202353482U (en) | 2011-12-16 | 2011-12-26 | Multi-branch loading driving circuit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120529190.8 | 2011-12-16 | ||
| CN201120529190 | 2011-12-16 | ||
| CN2011205513250U CN202353482U (en) | 2011-12-16 | 2011-12-26 | Multi-branch loading driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353482U true CN202353482U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205513250U Expired - Fee Related CN202353482U (en) | 2011-12-16 | 2011-12-26 | Multi-branch loading driving circuit |
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| Country | Link |
|---|---|
| CN (1) | CN202353482U (en) |
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2011
- 2011-12-26 CN CN2011205513250U patent/CN202353482U/en not_active Expired - Fee Related
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Granted publication date: 20120725 Termination date: 20131226 |