CN203057098U - Half-bridge compensation driving device and electronic product - Google Patents
Half-bridge compensation driving device and electronic product Download PDFInfo
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- CN203057098U CN203057098U CN 201320040791 CN201320040791U CN203057098U CN 203057098 U CN203057098 U CN 203057098U CN 201320040791 CN201320040791 CN 201320040791 CN 201320040791 U CN201320040791 U CN 201320040791U CN 203057098 U CN203057098 U CN 203057098U
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- collector electrode
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Abstract
The utility model provides a half-bridge compensation driving device and an electronic product. The half-bridge compensation driving device comprises a first coil connecting end, a second coil connecting end, a power input end, a first external chip half-bridge signal input end, a second external chip half-bridge signal input end, a first triode and a second triode, wherein the first external chip half-bridge signal input end is connected with a collector electrode of the first triode, a collector electrode of the second triode and the second external chip half-bridge signal input end; a base electrode of the first triode is connected with the collector electrode of the second triode; the collector electrode of the first triode is grounded; an emitting electrode of the first triode is connected with the power input end; a base electrode of the second triode is connected with the collector electrode of the first triode; and an emitting electrode of the second triode is connected with the power input end. The half-bridge compensation driving device provided by the utility model has the characteristics of small peripheral components and very low circuit breakover voltage drop, and solves the problem that a half-bridge driving chip can only be used for half-bridge driving, and is high in heat productivity and power consumption.
Description
Technical field
The utility model relates to electronic applications, particularly a kind of half-bridge compensation drive unit and electronic product.
Background technology
Half-bridge driven chip of the prior art can not drive as full-bridge only as half-bridge driven, has the problem that caloric value is big, power consumption is high.
The utility model content
The utility model provides a kind of can drive the chip use as this bridge with the half-bridge driven chip, half-bridge compensation drive unit and electronic product that caloric value is little, low in energy consumption.
For addressing the above problem, as first aspect of the present utility model, a kind of half-bridge compensation drive unit is provided, has comprised: first coil connecting terminal, second coil connecting terminal, power input, the first external chip half-bridge signal input part, the second external chip half-bridge signal input, first triode and second triode; The first external chip half-bridge signal input part is connected with the collector electrode of first triode, collector electrode and the second external chip half-bridge signal input of second triode respectively; The base stage of first triode is connected with the collector electrode of second triode; The grounded collector of first triode; The emitter of first triode is connected with power input; The base stage of second triode is connected with the collector electrode of first triode; The emitter of second triode is connected with power input; The collector electrode of first triode is connected with first coil connecting terminal, and the collector electrode of second triode is connected with second coil connecting terminal.
Further, half-bridge compensation drive unit also comprises first resistance, and the base stage of second triode is connected with the collector electrode of first triode by first resistance.
Further, half-bridge compensation drive unit also comprises second resistance, and the base stage of first triode is connected with the collector electrode of second triode by second resistance.
Further, half-bridge compensation drive unit also comprises first diode and second diode, and the emission collection of first triode is connected with the collector electrode of first triode by first diode; The emission collection of second triode is connected with the collector electrode of second triode by second diode.
Further, half-bridge compensation drive unit also comprises voltage-stabiliser tube, and the first external chip half-bridge signal input part is by voltage-stabiliser tube ground connection.
Further, half-bridge compensation drive unit also comprises the 3rd resistance and electric capacity, and the first external chip half-bridge signal input part is successively by the 3rd resistance and capacity earth.
As second aspect of the present utility model, a kind of electronic product is provided, comprise half-bridge driven chip and half-bridge compensation drive unit, this half-bridge compensation drive unit is above-mentioned half-bridge compensation drive unit, a half-bridge signal output part of half-bridge driven chip is connected with the first external chip half-bridge signal input part of half-bridge compensation drive unit, and another half-bridge signal output part of half-bridge driven chip is connected with the second external chip half-bridge signal input of half-bridge compensation drive unit.
Further, electronic product is fan.
It is less to the utlity model has peripheral cell, and the characteristics that the circuit turn-on pressure drop is very low have solved the half-bridge driven chip only as half-bridge driven, can not drive as full-bridge, have the problem that caloric value is big, power consumption is high.
Description of drawings
Fig. 1 schematically shows circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As first aspect of the present utility model, provide a kind of half-bridge compensation drive unit.As shown in Figure 1, this half-bridge compensation drive unit comprises: first coil connecting terminal, second coil connecting terminal, power input VCC, the first external chip half-bridge signal input part, the second external chip half-bridge signal input, the first triode T1 and the second triode T2; The first external chip half-bridge signal input part is connected with the collector electrode of the first triode T1, collector electrode and the second external chip half-bridge signal input of the second triode T2 respectively; The base stage of the first triode T1 is connected with the collector electrode of the second triode T2; The grounded collector of the first triode T1; The emitter of the first triode T1 is connected with power input; The base stage of the second triode T2 is connected with the collector electrode of the first triode T1; The emitter of the second triode T2 is connected with power input; The collector electrode of the first triode T1 is connected with first coil connecting terminal, and the collector electrode of the second triode T2 is connected with second coil connecting terminal, to drive the coil COIL of the motor that is connected with first coil connecting terminal, second coil connecting terminal.
The utility model utilizes the sequential of half-bridge driven chip U1 height itself, when the first switch element IT1 in the half-bridge driven chip U1 (for example being N-MOSFET or NPN triode etc.) conducting is worked, the current collection of the first switch element IT1 is low level very, to receive the base stage of the first triode T1 for second resistance R 2 of biasing, make the EC utmost point conducting of the first triode T1, become full-bridge through coil windings to the first switch element IT1 and drive.This moment the first triode T1 Vec ≈ 0.2V, the emitter of the first triode T1 and the second triode T2 connects same current potential, at this moment the EC utmost point of the second triode T2 can not conducting, unit IT2 does not work (according to the sequential of half-bridge driven chip U1 itself) this moment because of first switch element IT1 work second switch.When second switch unit IT2 worked, the first switch element IT1 ended, and this moment, the second triode T2 arrived second switch unit IT2 through coil windings.
It is less to the utlity model has peripheral cell, and the characteristics that the circuit turn-on pressure drop is very low have solved the half-bridge driven chip only as half-bridge driven, can not drive as full-bridge, have the problem that caloric value is big, power consumption is high.
Preferably, half-bridge compensation drive unit comprises that also the base stage of first resistance R, 1, the second triode T2 is connected with the collector electrode of the first triode T1 by first resistance R 1.
Preferably, half-bridge compensation drive unit comprises that also the base stage of second resistance R, 2, the first triode T1 is connected with the collector electrode of the second triode T2 by second resistance R 2.
Preferably, half-bridge compensation drive unit also comprises the first diode D1 and the second diode D2, and the emission collection of the first triode T1 is connected with the collector electrode of the first triode T1 by the first diode D1; The emission collection of the second triode T2 is connected with the collector electrode of the second triode T2 by the second diode D2.
Preferably, half-bridge compensation drive unit also comprises voltage-stabiliser tube ZD, and the first external chip half-bridge signal input part is by voltage-stabiliser tube ZD ground connection.When first switch element of half-bridge driven chip U1 and second switch unit are MOSFET, can select voltage-stabiliser tube ZD, the Vds crest voltage of MOSFET is reduced, make the Vds crest voltage be no more than the highest voltage that bears of first switch element and second switch unit.
Preferably, half-bridge compensation drive unit comprises that also the 3rd resistance R 3 and capacitor C 1, the first external chip half-bridge signal input part are successively by the 3rd resistance R 3 and capacitor C 1 ground connection.The 3rd resistance R 3 and capacitor C 1 constitute protective circuit; when first switch element of half-bridge driven chip U1 and second switch unit are triode; can select the 3rd resistance R 3 and capacitor C 1 to reduce the crest voltage of the Vce of first switch element and second switch unit, the Vce maximum that makes crest voltage be no more than first switch element and second switch unit is born voltage.
Half-bridge driven chip U1 can be multiple model, and its inner structure can be different, but operation principle is the same.
As second aspect of the present utility model, a kind of electronic product is provided, comprise half-bridge driven chip U1 and half-bridge compensation drive unit, this half-bridge compensation drive unit is above-mentioned half-bridge compensation drive unit, the half-bridge signal output part of half-bridge driven chip U1 is connected with the first external chip half-bridge signal input part of half-bridge compensation drive unit, and another half-bridge signal output part of half-bridge driven chip U1 is connected with the second external chip half-bridge signal input of half-bridge compensation drive unit.Preferably, electronic product is fan.
Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (8)
1. a half-bridge compensates drive unit, it is characterized in that, comprising: first coil connecting terminal, second coil connecting terminal, power input (VCC), the first external chip half-bridge signal input part, the second external chip half-bridge signal input, first triode (T1) and second triode (T2);
The described first external chip half-bridge signal input part is connected with the collector electrode of described first triode (T1), collector electrode and the described second external chip half-bridge signal input of described second triode (T2) respectively;
The base stage of described first triode (T1) is connected with the collector electrode of described second triode (T2); The grounded collector of described first triode (T1); The emitter of described first triode (T1) is connected with described power input;
The base stage of described second triode (T2) is connected with the collector electrode of described first triode (T1); The emitter of described second triode (T2) is connected with described power input;
The collector electrode of described first triode (T1) is connected with described first coil connecting terminal, and the collector electrode of described second triode (T2) is connected with described second coil connecting terminal.
2. half-bridge according to claim 1 compensates drive unit, it is characterized in that, described half-bridge compensation drive unit also comprises first resistance (R1), and the base stage of described second triode (T2) is connected with the collector electrode of described first triode (T1) by described first resistance (R1).
3. half-bridge according to claim 1 compensates drive unit, it is characterized in that, described half-bridge compensation drive unit also comprises second resistance (R2), and the base stage of described first triode (T1) is connected with the collector electrode of described second triode (T2) by described second resistance (R2).
4. half-bridge according to claim 1 compensates drive unit, it is characterized in that, described half-bridge compensation drive unit also comprises first diode (D1) and second diode (D2), and the emission collection of described first triode (T1) is connected with the collector electrode of described first triode (T1) by described first diode (D1); The emission collection of described second triode (T2) is connected with the collector electrode of described second triode (T2) by described second diode (D2).
5. half-bridge compensation drive unit according to claim 1 is characterized in that, described half-bridge compensation drive unit also comprises voltage-stabiliser tube (ZD), and the described first external chip half-bridge signal input part is by described voltage-stabiliser tube (ZD) ground connection.
6. half-bridge according to claim 1 compensates drive unit, it is characterized in that, described half-bridge compensation drive unit also comprises the 3rd resistance (R3) and electric capacity (C1), and the described first external chip half-bridge signal input part is successively by described the 3rd resistance (R3) and electric capacity (C1) ground connection.
7. electronic product, comprise half-bridge driven chip (U1) and half-bridge compensation drive unit, it is characterized in that, described half-bridge compensation drive unit is each described half-bridge compensation drive unit in the claim 1 to 6, a half-bridge signal output part of described half-bridge driven chip (U1) is connected with the described first external chip half-bridge signal input part of described half-bridge compensation drive unit, and another half-bridge signal output part of described half-bridge driven chip (U1) is connected with the described second external chip half-bridge signal input of described half-bridge compensation drive unit.
8. electronic product according to claim 7 is characterized in that, described electronic product is fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040791 CN203057098U (en) | 2013-01-23 | 2013-01-23 | Half-bridge compensation driving device and electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040791 CN203057098U (en) | 2013-01-23 | 2013-01-23 | Half-bridge compensation driving device and electronic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203057098U true CN203057098U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320040791 Expired - Fee Related CN203057098U (en) | 2013-01-23 | 2013-01-23 | Half-bridge compensation driving device and electronic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203057098U (en) |
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2013
- 2013-01-23 CN CN 201320040791 patent/CN203057098U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yi Lan Science and Technology Ltd. of Shenzhen Assignor: He Lili Contract record no.: 2013440020449 Denomination of utility model: Half-bridge compensation driving device and electronic product Granted publication date: 20130710 License type: Exclusive License Record date: 20131231 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yi Lan Science and Technology Ltd. of Shenzhen Assignor: He Lili Contract record no.: 2013440020449 Denomination of utility model: Half-bridge compensation driving device and electronic product Granted publication date: 20130710 License type: Exclusive License Record date: 20131231 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20160123 |
|
| EXPY | Termination of patent right or utility model |