CN202798549U - Speed modulating interface circuit of motor hardware controller - Google Patents
Speed modulating interface circuit of motor hardware controller Download PDFInfo
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- CN202798549U CN202798549U CN2012203768832U CN201220376883U CN202798549U CN 202798549 U CN202798549 U CN 202798549U CN 2012203768832 U CN2012203768832 U CN 2012203768832U CN 201220376883 U CN201220376883 U CN 201220376883U CN 202798549 U CN202798549 U CN 202798549U
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Abstract
The utility model relates to a speed modulating interface circuit of a motor hardware controller. The speed modulating interface circuit comprises a voltage comparison circuit, a voltage regulation circuit and a summing circuit. A voltage input signal (Vin) is inputted into one input terminal of the voltage comparison circuit and a reference voltage (Vrf) is connected to another input terminal of the voltage comparison circuit; an output terminal of the voltage comparison circuit is connected to an input terminal of the voltage regulation circuit and an output terminal of the voltage regulation circuit is connected to an input terminal of the summing circuit; the voltage input signal (Vin) is connected to another input terminal of the summing circuit; and an output voltage (Vout) of the summing circuit is equal to the sum of output voltages (V0) of the voltage input signal (Vin) and the voltage regulation circuit. Therefore, a problem that the maximum speed regulation voltage outputted by an air-conditioner controller can be converted from 5.1VDC to 6.5VDC based on no changing of a parameter of a motor is solved. On one hand, a severe problem of supply shortage of integrated control ICs of related types can be alleviated; and on the one hand, the manufacturing cost can be reduced to realize high-efficiency utilization of the integrated IC with low cost.
Description
Technical field:
The utility model relates to a kind of speed governing interface circuit of motor hardware control.
Background technology:
At present, along with enforcement and the domestic dc brushless motor demand of national efficiency subsidy policy increases sharply, speed governing voltage Vsp can reach the completely logical special-purpose control of brushless electric machine IC and the situation that supply falls short of demand usually occur when being 5.1VDC, so some motor producers are in order to satisfy the needs in air-conditioning market, completely logical integrated IC replaces the special use control IC of front when being 6.5VDC with speed governing voltage Vsp, but this substitute mode just need to correspondingly improve the relevant parameters of motor to be cooperated, the probability that will cause like this manufacturing cost of motor greatly to increase.In order to mate the completely logical special-purpose control of the brushless electric machine IC of air-conditioner controller output voltage and 6.5VDC, the ad hoc speed governing interface circuit of having counted this motor hardware control.
The utility model content:
The purpose of this utility model provides a kind of speed governing interface circuit of motor hardware control, the maximum speed governing voltage 5.1VDC of air-conditioner controller output is transformed into 6.5VDC, thereby can use maximum speed governing voltage and equal low-cost integrated IC on the market of 6.5VDC, reduce cost, drawing materials is more prone to extensive.
The purpose of this utility model is achieved by following technical proposals.
A kind of speed governing interface circuit of motor hardware control, comprise voltage comparator circuit, regulating circuit and add circuit, voltage input signal Vin is input to an input of voltage comparator circuit, reference voltage Vrf is connected to another input of voltage comparator circuit, the output of voltage comparator circuit connects the input of regulating circuit, the output of regulating circuit is connected to an input of add circuit, voltage input signal Vin is connected to another input of add circuit, and the output voltage V out of add circuit equals output voltage V 0 sum of voltage input signal Vin and regulating circuit;
When voltage input signal Vin less than reference voltage Vrf, the voltage of the output of voltage comparator circuit is zero, the output end voltage of regulating circuit also is zero, the output voltage V out of add circuit equals voltage input signal Vin;
When voltage input signal Vin greater than reference voltage Vrf, when output voltage V 0 was high level after process voltage comparator circuit and regulating circuit were processed, the output voltage V out of add circuit also is high level, and the output voltage V out of add circuit equals output voltage V 0 sum of voltage input signal Vin and regulating circuit.
Reference voltage Vrf described above is 2.1VDC, and when the output voltage V 0 of regulating circuit was high level, its magnitude of voltage was 1.4VDC.
Voltage comparator circuit described above comprises motor integrated chip IC1, resistance R 8, resistance R 9, resistance R ES2 and capacitor C 1, voltage input signal Vin connects the positive input terminal of integrated chip IC1 by resistance R 8, resistance R ES2 and capacitor C 1 are together in parallel, two ends connect respectively with the negative input end of integrated chip IC1, resistance R 9 two ends connect respectively negative input end and the power Vcc of integrated chip IC1.
Regulating circuit described above comprises resistance R 2, resistance R 3, voltage-stabiliser tube D1 and capacitor C 2, and resistance R 3, voltage-stabiliser tube D1 are connected the rear two ends that are together in parallel and are connected respectively ground and an end of resistance R 2 with capacitor C, and the other end of resistance R 2 connects the output of integrated chip IC1.
Add circuit described above comprises motor integrated chip IC2, resistance R 1, resistance R 4, resistance R 5, resistance R 6 and resistance R 7, resistance R 1 two ends connect respectively in-phase input end and the voltage signal input Vin of integrated chip IC2, resistance R 4 two ends connect respectively the output of regulating circuit and the in-phase input end of integrated chip IC2, resistance R 5 two ends connect respectively with the in-phase input end of integrated chip IC2, resistance R 6 two ends connect respectively with the inverting input of integrated chip IC2, resistance R 7 two ends connect respectively the inverting input of integrated chip IC2 and the output of integrated chip IC2.
Motor integrated chip IC1 described above and IC2 adopt dual operational amplifier LM538.
The utility model compared with prior art has following advantage:
1) the utility model has been broken through prior art, the speed governing interface circuit of an electric machine controller of design, and it can guarantee that speed governing voltage is that 2.1VDC starts equally, can increase again the maximum of speed governing voltage simultaneously, the circuit structure practical simplicity, cost is low.
2) the utility model configuration voltages comparison circuit, regulating circuit and add circuit, the voltage accumulation of the speed governing reference voltage 2.1VDC to 5.1VDC of air-conditioner controller output is increased, thereby finish maximum speed governing voltage and equal low-cost integrated IC on the market of 6.5VDC, and do not need to change the parameter of motor, solved chip and completely switched on and press unmatched problem.
3) the utility model has solved the parameter that does not change motor at present, the maximum speed governing voltage 5.1VDC of air-conditioner controller output is transformed into the problem of 6.5VDC, alleviated on the one hand the problem that serious supply shortage has appearred in the integrated control IC of relevant model, can reduce manufacturing cost on the other hand, realize the efficient utilization of low-cost integrated IC.
Description of drawings:
Fig. 1 is the circuit control principle drawing of utility model;
Fig. 2 is the curve chart that output voltage V out changes with input voltage vin;
Fig. 3 is circuit diagram corresponding to Fig. 1.
Embodiment:
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment:
Such as Fig. 1, shown in Figure 3, a kind of speed governing interface circuit of motor hardware control, comprise voltage comparator circuit, regulating circuit and add circuit, voltage input signal Vin is input to an input of voltage comparator circuit, reference voltage Vrf is connected to another input of voltage comparator circuit, the output of voltage comparator circuit connects the input of regulating circuit, the output of regulating circuit is connected to an input of add circuit, voltage input signal Vin is connected to another input of add circuit, and the output voltage V out of add circuit equals output voltage V 0 sum of voltage input signal Vin and regulating circuit;
When voltage input signal Vin less than reference voltage Vrf, the voltage of the output of voltage comparator circuit is zero, the output end voltage of regulating circuit also is zero, the output voltage V out of add circuit equals voltage input signal Vin;
When voltage input signal Vin greater than reference voltage Vrf, the output voltage V out of add circuit is high level, through output voltage V 0 after the regulating circuit processing, the output voltage V out of add circuit equals output voltage V 0 sum of voltage input signal Vin and regulating circuit, pressure regulation voltage V0=R3*VCC (R3+R2), reference voltage Vrf is 2.1VDC, and when the output voltage V 0 of regulating circuit was high level, magnitude of voltage was 1.4VDC.Voltage comparator circuit comprises motor integrated chip IC1, resistance R 8, resistance R 9, resistance R ES2 and capacitor C 1, voltage input signal Vin connects the positive input terminal of integrated chip IC1 by resistance R 8, resistance R ES2 and capacitor C 1 are together in parallel, two ends connect respectively with the negative input end of integrated chip IC1, resistance R 9 two ends connect respectively negative input end and the power Vcc of integrated chip IC1.Regulating circuit comprises resistance R 2, resistance R 3, voltage-stabiliser tube D1 and capacitor C 2, and resistance R 3, voltage-stabiliser tube D1 are connected the rear two ends that are together in parallel and are connected respectively ground and an end of resistance R 2 with capacitor C, and the other end of resistance R 2 connects the output of integrated chip IC1.Add circuit comprises motor integrated chip IC2, resistance R 1, resistance R 4, resistance R 5, resistance R 6 and resistance R 7, resistance R 1 two ends connect respectively in-phase input end and the voltage signal input Vin of integrated chip IC2, resistance R 4 two ends connect respectively the output of regulating circuit and the in-phase input end of integrated chip IC2, resistance R 5 two ends connect respectively with the in-phase input end of integrated chip IC2, resistance R 6 two ends connect respectively with the inverting input of integrated chip IC2, resistance R 7 two ends connect respectively the inverting input of integrated chip IC2 and the output of integrated chip IC2.Motor integrated chip IC1 and IC2 adopt dual operational amplifier LM538.
Principle of the present utility model is: when the not enough 2.1VDC of air-conditioner controller output voltage, and the voltage V0=0 of regulating circuit output, the voltage Vout of this circuit output equals input voltage vin.When the voltage of air-conditioner controller output surpasses 2.1VDC, motor begins to start, enter simultaneously add circuit, the voltage V0=R3*VCC (R3+R2) of regulating circuit output, the output voltage V out=input voltage vin+R3*VCC/ (R3+R2) of add circuit, the voltage accumulation is increased, satisfy the low-cost integrated IC that maximum speed governing voltage equals 6.5VDC, finish the interior speed governing of gamut of motor integrated chip IC.
Its change curve as shown in Figure 2, when the speed governing voltage of the air-conditioner controller output scope at 2.1VDC-5.1VDC, the voltage of the output voltage V out of add circuit is in 3.5VDC-6.5VDC scope, save the speed adjustable range of 2.1VDC-3.5VDC, but it is very little that the speed governing of low speed segment is used, so substantially do not affect the operation of motor.
Above-described embodiment is preferred embodiments of the present utility model; but execution mode of the present utility model is not limited to this; other are any not to deviate from change, the modification done under Spirit Essence of the present utility model and the principle, substitute, combination, simplify; be the substitute mode of equivalence, be included within the protection range of the present utility model.
Claims (6)
1. the speed governing interface circuit of a motor hardware control, it is characterized in that: it comprises voltage comparator circuit, regulating circuit and add circuit, voltage input signal (Vin) is input to an input of voltage comparator circuit, reference voltage (Vrf) is connected to another input of voltage comparator circuit, the output of voltage comparator circuit connects the input of regulating circuit, the output of regulating circuit is connected to an input of add circuit, voltage input signal (Vin) is connected to another input of add circuit, and the output voltage of add circuit (Vout) equals output voltage (V0) sum of voltage input signal (Vin) and regulating circuit;
When voltage input signal (Vin) less than reference voltage (Vrf), the voltage of the output of voltage comparator circuit is zero, the output end voltage of regulating circuit also is zero, the output voltage of add circuit (Vout) equals voltage input signal (Vin);
When voltage input signal (Vin) greater than reference voltage (Vrf), when output voltage (V0) was high level after process voltage comparator circuit and regulating circuit were processed, the output voltage of add circuit (Vout) also is high level, and the output voltage of add circuit (Vout) equals output voltage (V0) sum of voltage input signal (Vin) and regulating circuit.
2. the speed governing interface circuit of a kind of motor hardware control according to claim 1, it is characterized in that: described reference voltage (Vrf) is 2.1VDC, and when the output voltage of regulating circuit (V0) was high level, its magnitude of voltage was 1.4VDC.
3. the speed governing interface circuit of a kind of motor hardware control according to claim 1, it is characterized in that: voltage comparator circuit comprises motor integrated chip (IC1), resistance (R8), resistance (R9), resistance (RES2) and electric capacity (C1), voltage input signal (Vin) connects the positive input terminal of integrated chip (IC1) by resistance (R8), resistance (RES2) and electric capacity (C1) are together in parallel, two ends connect respectively and the negative input end of integrated chip (IC1), resistance (R9) two ends connect respectively negative input end and the power supply (Vcc) of integrated chip (IC1).
4. the speed governing interface circuit of a kind of motor hardware control according to claim 1, it is characterized in that: regulating circuit comprises resistance (R2), resistance (R3), voltage-stabiliser tube (D1) and electric capacity (C2), resistance (R3), voltage-stabiliser tube (D1) are connected C2 with electric capacity) the rear two ends that are together in parallel connect respectively and an end of resistance (R2), the other end of resistance (R2) connects the output of integrated chip (IC1).
5. the speed governing interface circuit of a kind of motor hardware control according to claim 3, it is characterized in that: add circuit comprises motor integrated chip (IC2), resistance (R1), resistance (R4), resistance (R5), resistance (R6) and resistance (R7), resistance (R1) two ends connect respectively in-phase input end and the voltage signal input (Vin) of integrated chip (IC2), resistance (R4) two ends connect respectively the output of regulating circuit and the in-phase input end of integrated chip (IC2), resistance (R5) two ends connect respectively and the in-phase input end of integrated chip (IC2), resistance (R6) two ends connect respectively and the inverting input of integrated chip (IC2), resistance (R7) two ends connect respectively the inverting input of integrated chip (IC2) and the output of integrated chip (IC2).
6. the speed governing interface circuit of a kind of motor hardware control according to claim 5 is characterized in that: motor integrated chip (IC1) and (IC2) be to adopt dual operational amplifier LM538.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203768832U CN202798549U (en) | 2012-07-31 | 2012-07-31 | Speed modulating interface circuit of motor hardware controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203768832U CN202798549U (en) | 2012-07-31 | 2012-07-31 | Speed modulating interface circuit of motor hardware controller |
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| Publication Number | Publication Date |
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| CN202798549U true CN202798549U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012203768832U Expired - Fee Related CN202798549U (en) | 2012-07-31 | 2012-07-31 | Speed modulating interface circuit of motor hardware controller |
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| CN (1) | CN202798549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199496A (en) * | 2013-04-18 | 2013-07-10 | 中国扬子集团滁州扬子空调器有限公司 | Motor speed regulating voltage Vsp cut-off circuit of air conditioning system of brushless motor |
-
2012
- 2012-07-31 CN CN2012203768832U patent/CN202798549U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199496A (en) * | 2013-04-18 | 2013-07-10 | 中国扬子集团滁州扬子空调器有限公司 | Motor speed regulating voltage Vsp cut-off circuit of air conditioning system of brushless motor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20190731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |