CN102468789B - Power polarity conversion circuit - Google Patents
Power polarity conversion circuit Download PDFInfo
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- CN102468789B CN102468789B CN201010542418.7A CN201010542418A CN102468789B CN 102468789 B CN102468789 B CN 102468789B CN 201010542418 A CN201010542418 A CN 201010542418A CN 102468789 B CN102468789 B CN 102468789B
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Abstract
The invention relates to a power polarity converter circuit, which comprises a positive phase output control part and a negative phase output control part, wherein the positive phase output control part comprises a positive phase output control part A and a positive phase output control part B; the negative phase output control part comprises a negative phase output control part A and a negative phase output control part B; in the positive phase output control part A, the output of a first working power supply is connected with a source and a grid of a metal oxide semiconductor (MOS) tube Q4, a resistor R2, and a collector and an emitter of a triode Q1 in turn, and is grounded; in the positive phase output control part B, the output of a second working power supply is connected with resistors R11, R12 and R13, and a collector and an emitter of a second triode Q9 in turn and is grounded; and the negative phase output control part A and the negative phase output control part B have the same structures as the positive phase output control parts A and B. Various problem of a relay are radically solved; and the power polarity converter circuit has the advantages of long service life, reliable work, simple control circuit and the like.
Description
[technical field]
The present invention relates to a kind of power polarity conversion circuit, particularly relate to a kind of power polarity conversion circuit arbitrarily can changed the positive-negative polarity of DC power supply.
[background technology]
Along with the development of science and technology, the application of direct current machine is more and more extensive, people carry out the positive-negative polarity of conversion electric power often through relay, thus realize direct current machine forward or reverse, but there is mechanical endurance in relay and electrical endurance is shorter, control the problems such as unreliable, control circuit is complicated, electropollution is serious, had a strong impact on the reliability of whole equipment.
Therefore, prior art needs to improve.
[summary of the invention]
In view of this, be necessary to propose a kind of efficient, reliable, cheap, simple power polarity conversion circuit, direct current machine work can be driven safely and reliably.
A technical scheme of the present invention is, a kind of power polarity conversion circuit, and it comprises positive output control part, anti-phase output control part, output terminals A and output B; Wherein, described positive output control part comprises positive output control part A, positive output control part B; Described anti-phase output control part comprises anti-phase output control part A, anti-phase output control part B; Described positive output control part A comprises resistance R1, resistance R2, resistance R3, resistance R15, metal-oxide-semiconductor Q4, triode Q1; The output of the first working power connects metal-oxide-semiconductor Q4 source electrode, metal-oxide-semiconductor Q4 grid, resistance R2, the collector electrode of triode Q1, the emitter of triode Q1, then ground connection successively; Resistance R1 one end is connected with metal-oxide-semiconductor Q4 source electrode, and the other end is connected with metal-oxide-semiconductor Q4 grid; Triode Q1 base stage Q1B is connected with signal end S1 by resistance R3, and it is also by resistance R15 ground connection; Metal-oxide-semiconductor Q4 drain electrode is also connected with described output terminals A; Described positive output control part B comprises resistance R11, resistance R12, resistance R13, resistance R14, metal-oxide-semiconductor Q10, and the first triode Q8, the second triode Q9, output contact resistance R11, resistance R12, resistance R13, the second triode Q9 collector electrode, the second triode Q9 emitter successively of the second working power, then ground connection; Second triode Q9 base stage is directly connected with triode Q1 base stage Q1B; One end that resistance R12 is connected with resistance R11 is connected with the first triode Q8 emitter, and the other end is connected with the first triode Q8 base stage; First triode Q8 collector electrode connects metal-oxide-semiconductor Q10 grid, metal-oxide-semiconductor Q10 source electrode and ground successively; Resistance R14 one end is connected with metal-oxide-semiconductor Q10 grid, and the other end is connected with metal-oxide-semiconductor Q10 source electrode; Metal-oxide-semiconductor Q10 drain electrode is connected with described output B; The structure of described anti-phase output control part A is identical with described positive output control part A, in described anti-phase output control part A, the output of the first working power is successively by source electrode, the described output B of drain electrode connection of a metal-oxide-semiconductor Q6, the grid of this metal-oxide-semiconductor Q6 is successively by collector electrode, the grounded emitter of a triode Q7, and the base stage Q7B of triode Q7 is by bleeder circuit connection signal end S2; ; The structure of described anti-phase output control part B is identical with described positive output control part B; In described anti-phase output control part B, the output of the second working power also connects the grid of another metal-oxide-semiconductor Q5 successively by the emitter of another triode Q2, collector electrode, the drain electrode of this metal-oxide-semiconductor Q5 connects described output terminals A, the base stage of described triode Q2 is by the collector electrode of another triode Q3, grounded emitter, and the base stage of this triode Q3 connects the base stage Q7B of described triode Q7; When signal end S1 is high level input, output terminals A is that positive source exports, and described output B ground connection is power cathode; When signal end S2 is high level input, output B is that positive source exports, and described output terminals A ground connection is power cathode.
Be applied to such scheme, in described power polarity conversion circuit, described anti-phase output control part A specifically comprises resistance R8, resistance R9, resistance R10, resistance R16, metal-oxide-semiconductor Q6, triode Q7; The output of the first working power connects metal-oxide-semiconductor Q6 source electrode, metal-oxide-semiconductor Q6 grid, resistance R9, triode Q7 collector electrode, triode Q7 emitter, then ground connection successively; Resistance R8 one end is connected with metal-oxide-semiconductor Q6 source electrode, and the other end is connected with metal-oxide-semiconductor Q6 grid; Triode Q7 base stage Q7B is connected with signal end S2 by resistance R10, also by resistance R16 ground connection.
Be applied to above-mentioned each scheme, in described power polarity conversion circuit, described anti-phase output control part B specifically comprises resistance R4, resistance R5, resistance R6, resistance R7, metal-oxide-semiconductor Q5, and the first triode Q2, the second triode Q3, the base stage of the second triode Q3 connects the base stage Q7B of described triode Q7, output contact resistance R4, resistance R5, resistance R6, the second triode Q3 collector electrode, the second triode Q3 emitter successively of the second working power, then ground connection; One end that resistance R5 is connected with resistance R4 is connected with the first triode Q2 emitter, and the other end is connected with the first triode Q2 base stage; First triode Q2 collector electrode connects metal-oxide-semiconductor Q5 grid, metal-oxide-semiconductor Q5 source electrode successively, then ground connection; Resistance R7 one end is connected with metal-oxide-semiconductor Q5 grid, and the other end is connected with metal-oxide-semiconductor Q5 source electrode.
Be applied to above-mentioned each scheme, in described power polarity conversion circuit, the resistance of described resistance R1, resistance R2, resistance R5, resistance R8, resistance R9, resistance R12 is identical, the resistance of described resistance R3, resistance R4, resistance R10, resistance R11 is identical, and the resistance of described resistance R6, resistance R7, resistance R13, resistance R14, resistance R15, resistance R16 is identical.
Be applied to such scheme, in described power polarity conversion circuit, described resistance R1, resistance R2, resistance R5, resistance R8, resistance R9, resistance R12 are 5.1k, described resistance R3, resistance R4, resistance R10, resistance R11 are 1k, and described resistance R6, resistance R7, resistance R13, resistance R14, resistance R15, resistance R16 are 10k.
Be applied to above-mentioned each scheme, in described power polarity conversion circuit, described triode Q1, triode Q3, triode Q7, triode Q9 are identical, and described triode Q2, triode Q8 are identical, described metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q6 are identical, and described metal-oxide-semiconductor Q5, metal-oxide-semiconductor Q10 are identical.
Be applied to such scheme, in described power polarity conversion circuit, described triode Q1, triode Q3, triode Q7, triode Q9 are BC817, described triode Q2, triode Q8 are MMBT4403L, described metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q6 are IRFR5035, and described metal-oxide-semiconductor Q5, metal-oxide-semiconductor Q10 are STD35NF06L.
Be applied to above-mentioned each scheme and combination thereof, in described power polarity conversion circuit, described first working power, the second working power are DC power supply.
Be applied to such scheme, in described power polarity conversion circuit, described first working power is 24V, and the second working power is 12V.
Be applied to above-mentioned each scheme and combination thereof, in described power polarity conversion circuit, also comprise the first lc circuit and the second lc circuit, described first working power is by being connected respectively to described positive output control part A, described anti-phase output control part A again after the first lc circuit; Described second working power is by being connected respectively to described positive output control part B, described anti-phase output control part B again after the second lc circuit.
Above-mentioned each scheme, adopt the bridge power polarity switching of the electrical device such as metal-oxide-semiconductor, triode design, whole employing electronic device realizes, overcome the various problems that relay exists completely, there is the advantages such as life-span length, reliable operation, control circuit be simple, greatly enhance the result of use of user.
[accompanying drawing explanation]
Fig. 1 is the schematic diagram of a power polarity conversion circuit embodiment.
[embodiment]
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
One embodiment of the present of invention are, a kind of power polarity conversion circuit, and it comprises positive output control part, anti-phase output control part, output terminals A and output B; As shown in Figure 1.Wherein, described positive output control part comprises positive output control part A and positive output control part B; Described anti-phase output control part comprises anti-phase output control part A and anti-phase output control part B.
Described positive output control part A comprises resistance R1, R2, R3, R15, metal-oxide-semiconductor Q4, triode Q1; The output of the first working power connects metal-oxide-semiconductor Q4 source electrode, grid, resistance R2, the collector electrode of triode Q1, the emitter of triode Q1, then ground connection successively; That is, from the first working power electric current out successively through metal-oxide-semiconductor Q4 source electrode, grid, resistance R2, triode Q1 collector electrode, triode Q1 emitter, then ground connection.
Resistance R1 one end is connected with metal-oxide-semiconductor Q4 source electrode, and the other end is connected with metal-oxide-semiconductor Q4 grid.
Triode Q1 base stage Q1B is connected with signal end S1 by resistance R3, also by resistance R15 ground connection.
Metal-oxide-semiconductor Q4 drain electrode is connected with described output terminals A.
Described positive output control part B comprises resistance R11, R12, R13, R14, metal-oxide-semiconductor Q10, and the first triode Q8, the second triode Q9, output contact resistance R11, resistance R12, resistance R13, the second triode Q9 collector electrode, the second triode Q9 emitter successively of the second working power, then ground connection; That is, from the second working power electric current out successively through resistance R11, R12, R13, the second triode Q9 collector electrode, the second triode Q9 emitter, then ground connection.
Second triode Q9 base stage is directly connected with triode Q1 base stage Q1B.
One end that resistance R12 is connected with resistance R11 is connected with the first triode Q8 emitter, and the other end is connected with the first triode Q8 base stage.
First triode Q8 collector electrode connects metal-oxide-semiconductor Q10 grid, metal-oxide-semiconductor Q10 source electrode successively, then ground connection.
Resistance R14 one end is connected with metal-oxide-semiconductor Q10 grid, and the other end is connected with metal-oxide-semiconductor Q10 source electrode.
Metal-oxide-semiconductor Q10 drain electrode is connected with described output B.
Described anti-phase output control part A structure identical with described positive output control part A, in described anti-phase output control part A, the output of the first working power passes through collector electrode, the grounded emitter of a triode Q7 successively by the source electrode of a metal-oxide-semiconductor Q6, the grid of drain electrode connection described output B, this metal-oxide-semiconductor Q6 successively.Such as, described anti-phase output control part A specifically comprises resistance R8, R9, R10, R16, metal-oxide-semiconductor Q6, triode Q7; The output of the first working power connects metal-oxide-semiconductor Q6 source electrode, metal-oxide-semiconductor Q6 grid, resistance R9, triode Q7 collector electrode, triode Q7 emitter, then ground connection successively; Namely from the first working power electric current out successively through metal-oxide-semiconductor Q6 source electrode, grid, resistance R9, triode Q7 collector electrode, triode Q7 emitter, then ground connection; Resistance R8 one end is connected with metal-oxide-semiconductor Q6 source electrode, and the other end is connected with metal-oxide-semiconductor Q6 grid; Triode Q7 base stage Q7B is connected with signal end S2 by resistance R10, also by resistance R16 ground connection; Metal-oxide-semiconductor Q6 drain electrode is connected with described output B.The base stage Q7B of triode Q7 is here by bleeder circuit connection signal end S2; As shown in Figure 1, bleeder circuit is made up of resistance R10 and R16.
Described anti-phase output control part B structure identical with described positive output control part B; In described anti-phase output control part B, the output of the second working power also connects the grid of another metal-oxide-semiconductor Q5 successively by the emitter of another triode Q2, collector electrode, the drain electrode of this metal-oxide-semiconductor Q5 connects described output terminals A, the base stage of described triode Q2 is by the collector electrode of another triode Q3, grounded emitter, and the base stage of this triode Q3 connects the base stage Q7B of described triode Q7.Such as, described anti-phase output control part B specifically comprises resistance R4, R5, R6, R7, metal-oxide-semiconductor Q5, and the first triode Q2, the second triode Q3, output contact resistance R4, resistance R5, resistance R6, the second triode Q3 collector electrode, the second triode Q3 emitter successively of the second working power, then ground connection; Namely from the second working power electric current out successively through resistance R4, R5, R6, the second triode Q3 collector electrode, the second triode Q3 emitter, then ground connection; Second triode Q3 base stage connects the base stage Q7B of described triode Q7; One end that resistance R5 is connected with resistance R4 is connected with the first triode Q2 emitter, and the other end is connected with the first triode Q2 base stage; First triode Q2 collector electrode connects metal-oxide-semiconductor Q5 grid, metal-oxide-semiconductor Q5 source electrode successively, then ground connection; Resistance R7 one end is connected with metal-oxide-semiconductor Q5 grid, and the other end is connected with metal-oxide-semiconductor Q5 source electrode; Metal-oxide-semiconductor Q5 drain electrode is connected with described output terminals A.
Like this, when signal end S1 is high level input, by bleeder circuit (R3 and R15) for the base stage Q1B of triode Q1 and Q9 provides static working current, output terminals A is that positive source exports, and described output B ground connection is power cathode; When signal end S2 is high level input, by bleeder circuit for the base stage Q7B of triode Q7 and Q3 provides static working current.Output B is that positive source exports, and described output terminals A ground connection is power cathode.
Be applied to above-mentioned each example, preferably, the resistance of described resistance R1, R2, R5, R8, R9, R12 is identical, and the resistance of described resistance R3, R4, R10, R11 is identical, and the resistance of described resistance R6, R7, R13, R14, R15, R16 is identical.Such as, described resistance R1, R2, R5, R8, R9, R12 are 5.1k, and described resistance R3, R4, R10, R11 are 1k, and described resistance R6, R7, R13, R14, R15, R16 are 10k.
Be applied to above-mentioned each example and combination thereof, preferably, described triode Q1, Q3, Q7, Q9 are identical, and described triode Q2, Q8 are identical, and described metal-oxide-semiconductor Q4, Q6 are identical, and described metal-oxide-semiconductor Q5, Q10 are identical.Such as, described triode Q1, Q3, Q7, Q9 are BC817, and described triode Q2, Q8 are MMBT4403L, and described metal-oxide-semiconductor Q4, Q6 are IRFR5035, and described metal-oxide-semiconductor Q5, Q10 are STD35NF06L.
Be applied to above-mentioned each example and combination thereof, preferably, in described power polarity conversion circuit, described first working power, the second working power are DC power supply.Such as, described first working power is 24V, and the second working power is 12V.
Be applied to above-mentioned each example and combination thereof, preferably, described power polarity conversion circuit also comprises the first lc circuit and the second lc circuit, and described first working power is by being connected respectively to described positive output control part A, described anti-phase output control part A again after the first lc circuit; Described second working power is by being connected respectively to described positive output control part B, described anti-phase output control part B again after the second lc circuit.Or, adopt LRC circuit to substitute the first lc circuit and the second lc circuit respectively.
A concrete example is that a kind of power polarity conversion circuit, as shown in Figure 1, described change-over circuit comprises positive output control part A, positive output control part B, anti-phase output control part A, anti-phase output control part B tetra-part.Positive output control part A, positive output control part B form positive output control part jointly, and when the work of positive output control part, A is out-put supply positive pole, and B is out-put supply negative pole; Anti-phase output control part A, anti-phase output control part B form anti-phase output control part jointly, and when anti-phase output control part work, A is out-put supply negative pole, and B is out-put supply positive pole.
As shown in Figure 1, positive output control part comprises positive output control part A, positive output control part B, and wherein positive output control part A comprises: resistance R1, R2, R3, R15, metal-oxide-semiconductor Q4, triode Q1; Positive output control part B comprises: resistance R11, R12, R13, R14, metal-oxide-semiconductor Q10, triode Q8, Q9.
Anti-phase output control part comprises anti-phase output control part A, anti-phase output control part B, and wherein anti-phase output control part A comprises: resistance R8, R9, R10, R16, metal-oxide-semiconductor Q6, triode Q7; Anti-phase output control part B comprises: resistance R4, R5, R6, R7, metal-oxide-semiconductor Q5, triode Q2, Q3.
After switching on power, because circuit obtains electric, so load+12V power supply at resistance R4, R11 place.When needs positive output control part works, load high level signal at resistance R3 place S1 signal end, Q1B end signal is also high level, triode Q1 conducting is controlled by resistance R3, and then control metal-oxide-semiconductor Q4 ON operation, so A end is directly connected with positive source, be out-put supply positive pole; Because Q1B end signal is high level, triode Q9 conducting, and then control triode Q8, metal-oxide-semiconductor Q10 ON operation, so B end is directly connected with power supply GND, be out-put supply negative pole.When the anti-phase output control part work of needs, load high level signal at resistance R10 place S2 signal end, Q7B end signal is also high level, triode Q7 conducting is controlled by resistance R10, and then control metal-oxide-semiconductor Q6 ON operation, so B end is directly connected with positive source, be out-put supply positive pole; Because Q7B end signal is high level, triode Q3 conducting, and then control triode Q2, metal-oxide-semiconductor Q5 ON operation, so A end is directly connected with power supply GND, be out-put supply negative pole.
The power polarity conversion circuit that above-mentioned each example provides, all adopts electric power, electronic device to realize, guarantees reliable and stable work, overcomes the drawback adopting relay, has very strong actual application value.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention; Further, each technical characteristic listed above, it mutually combines and can form each embodiment, should be regarded as the scope belonging to specification of the present invention record.For the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (9)
1. a power polarity conversion circuit, is characterized in that, comprises positive output control part, anti-phase output control part, output terminals A and output B;
Wherein, described positive output control part comprises positive output control part A, positive output control part B; Described anti-phase output control part comprises anti-phase output control part A, anti-phase output control part B;
Described positive output control part A comprises resistance R1, resistance R2, resistance R3, resistance R15, metal-oxide-semiconductor Q4, triode Q1; The output of the first working power connects metal-oxide-semiconductor Q4 source electrode, metal-oxide-semiconductor Q4 grid, resistance R2, the collector electrode of triode Q1, the emitter of triode Q1, then ground connection successively; Resistance R1 one end is connected with metal-oxide-semiconductor Q4 source electrode, and the other end is connected with metal-oxide-semiconductor Q4 grid; Triode Q1 base stage Q1B is connected with signal end S1 by resistance R3, and it is also by resistance R15 ground connection; Metal-oxide-semiconductor Q4 drain electrode is also connected with described output terminals A;
Described positive output control part B comprises resistance R11, resistance R12, resistance R13, resistance R14, metal-oxide-semiconductor Q10, and the first triode Q8, the second triode Q9, output contact resistance R11, resistance R12, resistance R13, the second triode Q9 collector electrode, the second triode Q9 emitter successively of the second working power, then ground connection; Second triode Q9 base stage is directly connected with triode Q1 base stage Q1B; One end that resistance R12 is connected with resistance R11 is connected with the first triode Q8 emitter, and the other end is connected with the first triode Q8 base stage; First triode Q8 collector electrode connects metal-oxide-semiconductor Q10 grid, metal-oxide-semiconductor Q10 source electrode and ground successively; Resistance R14 one end is connected with metal-oxide-semiconductor Q10 grid, and the other end is connected with metal-oxide-semiconductor Q10 source electrode; Metal-oxide-semiconductor Q10 drain electrode is connected with described output B;
The structure of described anti-phase output control part A is identical with described positive output control part A, in described anti-phase output control part A, the output of the first working power is successively by source electrode, the described output B of drain electrode connection of a metal-oxide-semiconductor Q6, the grid of this metal-oxide-semiconductor Q6 is successively by collector electrode, the grounded emitter of a triode Q7, and the base stage Q7B of triode Q7 is by bleeder circuit connection signal end S2;
The structure of described anti-phase output control part B is identical with described positive output control part B; In described anti-phase output control part B, the output of the second working power also connects the grid of another metal-oxide-semiconductor Q5 successively by the emitter of another triode Q2, collector electrode, the drain electrode of this metal-oxide-semiconductor Q5 connects described output terminals A, the base stage of described triode Q2 is by the collector electrode of another triode Q3, grounded emitter, and the base stage of this triode Q3 connects the base stage Q7B of described triode Q7;
When signal end S1 is high level input, by resistance R3 and resistance R15 for the base stage Q1B of triode Q1 and Q9 provides static working current, output terminals A is that positive source exports, and described output B ground connection is power cathode; When signal end S2 is high level input, by bleeder circuit for the base stage Q7B of triode Q7 and Q3 provides static working current, output B is that positive source exports, and described output terminals A ground connection is power cathode;
Described first working power, the second working power are DC power supply.
2. power polarity conversion circuit according to claim 1, is characterized in that, described anti-phase output control part A specifically comprises resistance R8, resistance R9, resistance R10, resistance R16, metal-oxide-semiconductor Q6, triode Q7; The output of the first working power connects metal-oxide-semiconductor Q6 source electrode, metal-oxide-semiconductor Q6 grid, resistance R9, triode Q7 collector electrode, triode Q7 emitter, then ground connection successively; Resistance R8 one end is connected with metal-oxide-semiconductor Q6 source electrode, and the other end is connected with metal-oxide-semiconductor Q6 grid; Triode Q7 base stage Q7B is connected with signal end S2 by resistance R10, also by resistance R16 ground connection.
3. power polarity conversion circuit according to claim 1, it is characterized in that, described anti-phase output control part B specifically comprises resistance R4, resistance R5, resistance R6, resistance R7, metal-oxide-semiconductor Q5, and the first triode Q2, the second triode Q3, the base stage of the second triode Q3 connects the base stage Q7B of described triode Q7, output contact resistance R4, resistance R5, resistance R6, the second triode Q3 collector electrode, the second triode Q3 emitter successively of the second working power, then ground connection; One end that resistance R5 is connected with resistance R4 is connected with the first triode Q2 emitter, and the other end is connected with the first triode Q2 base stage; First triode Q2 collector electrode connects metal-oxide-semiconductor Q5 grid, metal-oxide-semiconductor Q5 source electrode successively, then ground connection; Resistance R7 one end is connected with metal-oxide-semiconductor Q5 grid, and the other end is connected with metal-oxide-semiconductor Q5 source electrode.
4. power polarity conversion circuit according to claim 1, it is characterized in that, the resistance of described resistance R1, resistance R2, resistance R5, resistance R8, resistance R9, resistance R12 is identical, the resistance of described resistance R3, resistance R4, resistance R10, resistance R11 is identical, and the resistance of described resistance R6, resistance R7, resistance R13, resistance R14, resistance R15, resistance R16 is identical.
5. power polarity conversion circuit according to claim 4, it is characterized in that, described resistance R1, resistance R2, resistance R5, resistance R8, resistance R9, resistance R12 are 5.1k, described resistance R3, resistance R4, resistance R10, resistance R11 are 1k, and described resistance R6, resistance R7, resistance R13, resistance R14, resistance R15, resistance R16 are 10k.
6. power polarity conversion circuit according to claim 1, it is characterized in that, described triode Q1, triode Q3, triode Q7, triode Q9 are identical, and described triode Q2, triode Q8 are identical, described metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q6 are identical, and described metal-oxide-semiconductor Q5, metal-oxide-semiconductor Q10 are identical.
7. power polarity conversion circuit according to claim 6, it is characterized in that, described triode Q1, triode Q3, triode Q7, triode Q9 are BC817, described triode Q2, triode Q8 are MMBT4403L, described metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q6 are IRFR5035, and described metal-oxide-semiconductor Q5, metal-oxide-semiconductor Q10 are STD35NF06L.
8. power polarity conversion circuit according to claim 1, is characterized in that, described first working power is 24V, and the second working power is 12V.
9. according to the arbitrary described power polarity conversion circuit of claim 1 to 8, it is characterized in that, it also comprises the first lc circuit and the second lc circuit, and described first working power is by being connected respectively to described positive output control part A, described anti-phase output control part A again after the first lc circuit; Described second working power is by being connected respectively to described positive output control part B, described anti-phase output control part B again after the second lc circuit.
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201467101U (en) * | 2009-04-02 | 2010-05-12 | 深圳市麦格米特驱动技术有限公司 | MOSFET tube drive circuit adopting bootstrap power supply |
| CN101835312A (en) * | 2010-05-10 | 2010-09-15 | 海洋王照明科技股份有限公司 | LED drive control circuit |
| CN101867168A (en) * | 2010-05-21 | 2010-10-20 | 海洋王照明科技股份有限公司 | Power protecting circuit and LED lamp |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2009-188746A 2009.08.20 * |
| 大功率直流电机驱动电路设计;胡焕发等;《机械与电子》;20091031(第10期);第77-80页及图5 * |
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| Publication number | Publication date |
|---|---|
| CN102468789A (en) | 2012-05-23 |
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