WO2006041005A1 - チャタリング防止回路、及び、チャタリング防止回路を備える波形整形回路、及び、波形整形回路を備える3相モータ駆動制御回路 - Google Patents
チャタリング防止回路、及び、チャタリング防止回路を備える波形整形回路、及び、波形整形回路を備える3相モータ駆動制御回路 Download PDFInfo
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- WO2006041005A1 WO2006041005A1 PCT/JP2005/018532 JP2005018532W WO2006041005A1 WO 2006041005 A1 WO2006041005 A1 WO 2006041005A1 JP 2005018532 W JP2005018532 W JP 2005018532W WO 2006041005 A1 WO2006041005 A1 WO 2006041005A1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/10—Arrangements for controlling torque ripple, e.g. providing reduced torque ripple
Definitions
- Chattering prevention circuit including chattering prevention circuit
- waveform shaping circuit including chattering prevention circuit
- three-phase motor drive control circuit including waveform shaping circuit
- the present invention uses a chattering prevention circuit for preventing chattering, and a waveform shaping circuit suitable for shaping the rotational position signal of a motor using the chattering prevention circuit, and the waveform shaping circuit thereof.
- This relates to a three-phase motor drive control circuit that detects the rotational speed.
- a three-phase motor drive control circuit with a Hall element controls motor drive timing based on a motor rotation position signal generated in the Hall element.
- the three-phase motor drive control circuit generates a rotation speed pulse signal indicating the rotation speed from the rotation position signal, so-called FG signal, and adjusts the motor drive timing using the rotation speed information obtained from the FG signal.
- FG signal a rotation speed pulse signal indicating the rotation speed from the rotation position signal
- FIG. 6 is a circuit diagram of a motor device provided with a conventional motor drive control circuit.
- FIG. 6 shows a motor device 101 including such a motor drive control circuit 102.
- This motor device 101 includes Hall elements HU, HV, HW that detect the position of the rotor of the motor and output a rotational position signal, and these rotational position signals and a motor control command section (not shown).
- a motor drive control circuit 102 that outputs a control signal based on the command of the motor, a power driver 103 that supplies a drive current to the motor coils LU, LV, and LW according to the control signal from the motor drive control circuit 102; It has.
- the rotational position signals are the differential U-phase rotational position signals HU + and HU- output from the Hall element HU, the differential V-phase rotational position signals HV + and HV- output from the Hall element HV, the Hall The differential W-phase rotational position signals HW + and HW- output from the element HW and the three-phase sine wave signal that also serves as a force.
- the phase difference between each phase is 120 °.
- the motor drive control circuit 102 includes a power driver control circuit 109, a rotation speed pulse signal generation circuit 117, and a U-phase, V-phase, and W-phase provided before the rotation speed pulse signal generation circuit 117. And a waveform shaping circuit 110 composed of phase comparators 111, 112, 113.
- Powered driver control circuit 109, the rotating position signal HU +, HU ", HV + , HV", HW +, HW _, command signal Motor control command unit (not shown), and the rotational speed pulse signal generating circuit described later Receives the rotation speed pulse signal FG of 117 and outputs a control signal to the power driver 103.
- the command signal of the motor control command section is input to the power driver control circuit 109 via the input terminal TO.
- the U-phase comparator 111 compares the differential U-phase rotational position signals HU + and HU- and outputs a pulse signal HU2 which is the comparison result.
- the V-phase comparator 112 compares the differential V-phase rotational position signals HV + and HV- and outputs a pulse signal HV2 that is the comparison result.
- the W-phase comparator 113 compares the differential W-phase rotational position signals HW + and HW- and outputs a pulse signal HW2 as a comparison result.
- the aforementioned rotation speed pulse signal generation circuit 117 generates the rotation speed pulse signal FG by synthesizing the NOR signals HU2, HV2, and HW2, and outputs the rotation speed pulse signal FG to the power driver control circuit 109. .
- U-phase, V-phase, and W-phase comparators 111, 112, and 113 have hysteresis, and the noise superimposed on the rotational position signals HU +, HU ", HV +, HV", HW +, HW- If it is within a predetermined voltage width, that is, a hysteresis width, it is removed.
- a predetermined voltage width that is, a hysteresis width
- Patent Document 1 JP-A-6-169586
- the hysteresis width has to be set large enough to allow for the expected noise because there is variation between products and variations due to temperature.
- the amplitude of the rotational position signal decreases as the motor speed decreases and approaches the hysteresis width. Therefore, the lower the applicable rotation speed, the more difficult it is to set an appropriate hysteresis width.
- today's optical disc device It has been considered that the spindle motor is rotated at an ultra-low speed (for example, 50 rpm), and it was difficult to set an effective hysteresis width for the noise superimposed on the rotational position signal with a very small amplitude.
- the present invention has been made in view of such a reason, and the object thereof is to prevent chattering due to noise within a certain range without delaying the rotational position signal even when the rotational speed of the motor is low.
- Another object of the present invention is to provide a motor drive control circuit capable of suppressing generation of an erroneous rotation speed pulse signal.
- the present invention is a chattering prevention circuit, to which first and second pulse signals having the same frequency are input.
- the chattering prevention circuit holds the output level changed according to the first rising edge of the first pulse signal when the second pulse signal level is the predetermined level, and the second pulse signal level is the predetermined level. When the level is opposite, the output level changed again in response to the first fall of the first pulse signal is held. As a result, the chattering prevention circuit prevents output chattering.
- a waveform shaping circuit includes a first comparator that generates and outputs a first pulse signal from a first-phase sine wave signal, and a second-phase sine wave.
- a second comparator that generates and outputs a second pulse signal from the signal; and a chattering prevention circuit that receives the first and second pulse signals and prevents output chattering.
- the chattering prevention circuit holds the output level changed according to the first rise of the first pulse signal, and the level of the second pulse signal is predetermined.
- the level is the opposite of the level, output chattering is prevented by holding the output level changed again in response to the first fall of the first pulse signal.
- a waveform shaping circuit includes a first phase rotation position signal, a first comparator that generates and outputs a first noise signal, and a second phase Rotation position Signal power A second comparator that generates and outputs a second pulse signal, and a first chattering prevention circuit that receives the first and second pulse signals and prevents chattering of the first output.
- the first chattering prevention circuit holds the level of the first output changed according to the first rising edge of the first pulse signal when the level of the second noise signal is a predetermined level. When the level of the pulse signal of 2 is opposite to the predetermined level, the first output level changed again in response to the first falling edge of the first pulse signal is held.
- the waveform shaping circuit further includes a third comparator, a second chattering prevention circuit, and a third chattering prevention circuit.
- the third comparator generates and outputs a third noise signal for the rotational position signal force of the third phase.
- the second chattering prevention circuit holds the level of the second output changed according to the initial rising force S of the second pulse signal when the level of the third pulse signal is a predetermined level, When the level of the third pulse signal is opposite to the predetermined level, the second output level changed again in response to the first falling edge of the second pulse signal is held.
- the third chattering prevention circuit holds the level of the third output changed according to the first rising edge of the third pulse signal, and the second pulse signal is When the level is opposite to the predetermined level, the level of the third output changed again in response to the first falling edge of the third pulse signal is held.
- a three-phase motor drive control circuit includes a power driver control circuit and a waveform shaping circuit.
- the power driver control circuit receives the first, second, and third phase rotation position signals of the three-phase motor, the command signal, and the rotation number pulse signal that indicates the number of rotations. Output a signal.
- the waveform shaping circuit shapes the waveforms of the rotational position signals of the first phase, second phase and third phase.
- the waveform shaping circuit includes a first comparator, a second comparator, and a first chattering prevention circuit. The first comparator generates and outputs the first noise signal of the rotational position signal force of the first phase.
- the second comparator also generates and outputs a second pulse signal for the second-phase rotational position signal force.
- the first chattering prevention circuit receives the first and second pulse signals and prevents chattering of the first output signal.
- the first anti-chattering circuit is connected to the second pulse When the level of the first pulse signal is the predetermined level, the level of the first output signal changed according to the first rising edge of the first pulse signal is maintained, and the level of the second pulse signal is opposite to the predetermined level. When the level is selected, the level of the first output signal changed again in response to the first falling edge of the first pulse signal is held.
- the three-phase motor drive control circuit further includes a rotation speed pulse signal generation circuit.
- the rotation speed pulse signal generation circuit generates a first output signal force rotation speed pulse signal of the first chattering prevention circuit and outputs it to the power driver control circuit.
- the waveform shaping circuit further includes a third comparator, a second chattering prevention circuit, and a third chattering prevention circuit.
- the third comparator generates and outputs a third noise signal for the rotational position signal force of the third phase.
- the second chattering prevention circuit holds the level of the second output signal changed according to the initial rising force S of the second pulse signal when the level of the third pulse signal is a predetermined level.
- the level of the third pulse signal is opposite to the predetermined level
- the level of the second output signal changed again in response to the first falling edge of the second pulse signal is held.
- the third chattering prevention circuit holds the level of the third output signal changed in accordance with the first rising edge of the third noise signal when the second noise signal is at a predetermined level.
- the first pulse signal is at a level opposite to the predetermined level, the level of the third output signal changed again in response to the first fall of the third pulse signal is held.
- the rotation speed pulse signal generation circuit further generates a rotation speed pulse signal using the second and third output signals.
- the first-phase, second-phase, and third-phase rotational position signals are signals output from the first, second, and third Hall elements, respectively.
- the three-phase motor drive control circuit further includes a rotation direction signal generation circuit that generates a rotation direction signal indicating the rotation direction of the motor from at least the first and second output signals.
- the three-phase motor drive control circuit further includes a rotation direction signal generation circuit that generates a rotation direction signal indicating the rotation direction of the motor from at least the first and second output signals.
- the rotational position signals of the first phase, the second phase, and the third phase are the first, second, and second phases.
- the three-phase motor drive control circuit further includes a rotation direction signal generation circuit that generates a rotation direction signal indicating the rotation direction of the motor from at least the first and second output signals.
- the three-phase motor drive control circuit further includes a rotation direction signal generation circuit that generates a rotation direction signal indicating the rotation direction of the motor from at least the first and second output signals.
- the first-phase, second-phase, and third-phase rotational position signals are signals output from the first, second, and third Hall elements, respectively.
- the chattering prevention circuit and the waveform shaping circuit including the chattering prevention circuit according to the present invention each have a noise smaller than 1Z2 of amplitude superimposed on a sine wave signal (rotational position signal). Chattering can be reliably prevented without being affected by variations between products or temperature. Since the three-phase motor drive control circuit according to the present invention includes this waveform shaping circuit, generation of a rotation speed pulse signal indicating an incorrect rotation speed is suppressed.
- FIG. 1 is a circuit diagram of a motor device provided with a motor drive control circuit 2 according to an embodiment of the present invention.
- FIG. 3 is a diagram showing the waveform of each signal when noise close to half the amplitude is superimposed on the rotational position signals HIT, HU “, HV +, HV", HW +, HW-.
- FIG. 5A is a waveform diagram for explaining the operation of the chattering prevention circuit during rotation of the motor shown in FIG.
- FIG. 5B illustrates the operation of the chattering prevention circuit when the motor shown in FIG. 4 rotates. It is a waveform diagram.
- FIG. 6 is a circuit diagram of a motor device provided with a conventional motor drive control circuit.
- FIG. 7 is a circuit diagram showing a motor drive control circuit including a rotation direction signal generation circuit. Explanation of symbols
- FIG. 1 is a circuit diagram of a motor device provided with a motor drive control circuit 2 according to an embodiment of the present invention.
- This motor device 1 detects the position of the rotor of the motor M and outputs a rotation position signal, and outputs the rotation position signal, these rotation position signals, and a command from a motor control command section (not shown).
- a motor drive control circuit 2 that outputs a control signal based on the motor drive power supply 3 that supplies a drive current to the coils LU, LV, and LW of the motor M according to the control signal from the motor drive control circuit 2.
- the rotational position signals are the positive U-phase rotational position signal HU + and the negative U-phase rotational position signal HU-, which are differential signals output from the Hall element HU, and the differential signal output from the Hall element HV.
- the positive V-phase rotational position signal HV + and the negative V-phase rotational position signal HV— and the positive W-phase rotational position signal HW + and the negative W-phase rotational position, which are differential signals output by the Hall element HW This is a three-phase sine wave signal consisting of the signal HW-.
- the phase difference between each phase is 120 °.
- the motor drive control circuit 2 includes a phase driver control circuit 9, a rotation speed pulse signal generation circuit 17, and U-phase, V-phase, and W-phase comparators 11, 12, which are provided before the rotation speed pulse signal generation circuit 17.
- the control signal to power driver 3 is output.
- the command signal from the motor control command section is input to the power driver control circuit 9 via the input terminal TO.
- the motor drive control circuit 2 is characterized by the chattering prevention circuits 14, 15, and 16 described in detail later in the U, V, and W phase comparators 11, 12, and 13 in the waveform shaping circuit 10. It is in providing. More specifically, the control signal of the power driver control circuits 9, the rotating position signal HU +, HU ", HV + , HV", HW +, -out based on the HW _, controls the timing of the motor drive via a power driver 3 The amount of drive current supplied is controlled via the power driver 3 based on the command signal of the motor control command section. The motor drive timing is adjusted by the rotation speed pulse signal FG.
- the U-phase comparator 11 compares the differential U-phase rotational position signals HU + and HU-, and outputs a high-level or low-level U-phase pulse signal HU2.
- the V-phase comparator 12 compares the differential V-phase rotational position signals HV T and HV— and outputs a high-level or low-level V-phase pulse signal HV2.
- the W-phase comparator 13 compares the differential W-phase rotational position signals HW + and HW- and outputs a high-level or low-level W-phase pulse signal HW2.
- the U-phase chattering prevention circuit 14 receives the U-phase pulse signal HU2, the W-phase pulse signal HW2, and their inverted signals, and outputs an output signal HU3.
- the output signal HU3 changes to high level in response to the rise of the U-phase pulse signal HU2 when the W-phase pulse signal HW2 is low. After that, the level of the output signal HU3 is kept high.
- the output signal HU3 changes to low level in response to the falling edge of the U-phase pulse signal HU2 when the W-phase pulse signal HW2 is high. Thereafter, the level of the output signal HU3 is held at a low level.
- the V-phase chattering prevention circuit 15 receives the V-phase pulse signal HV2, the U-phase pulse signal HU2, and their inverted signals, and outputs an output signal HV3.
- the output signal HV3 changes to low or high level in response to the rise of the V-phase pulse signal WV2. Then output signal H The level of V3 is kept high.
- the output signal HV3 changes to low level in response to the fall of the V-phase pulse signal HV2 when the U-phase pulse signal HU2 is high. Thereafter, the level of the output signal HV3 is held at a low level.
- the W-phase chattering prevention circuit 16 receives the W-phase pulse signal HW2, the V-phase pulse signal HV2, and their inverted signals, and outputs an output signal HW3.
- the output signal HW3 changes to high level in response to the rise of the W-phase pulse signal HW2 when the V-phase pulse signal H V2 is low. Thereafter, the level of the output signal HW3 is maintained at a high level.
- the output signal H W3 changes to low level according to the fall of the W phase pulse signal HW2 when the V phase pulse signal HV2 is high level. After that, the level of the output signal HW3 is kept low.
- the rotation speed pulse signal generation circuit 17 receives the output signals HU3, HV3, and HW3 of the three-phase chattering prevention circuits 14, 15, 16 and generates a rotation speed pulse signal FG.
- the rotation speed pulse signal FG rises in synchronization with the rise of any of the signals HU3, HV3, and HW3, and falls in synchronization with the fall.
- the rotation speed pulse signal FG is input to the above-mentioned No. 1 driver control circuit 9.
- the rotating position signal HU +, HU ", HV” , HV ", HW +, HW _ noise indicates the waveform of each signal when no superimposed.
- FIG. 3 shows the waveforms of signals when noise close to 1Z2 in amplitude is superimposed on the rotational position signals HU +, HU ", HV +, HV", HW +, and HW-.
- the noise is less than 1/2 of the amplitude of the rotational position signals HIT, HU ", HV +, HV", HW +, HW-. Affects only the range of electrical angle 30 ° from front to back from each cross point.
- the pulse signals HU2, HV2, and HW2 that are the outputs of the three-phase comparators 11, 12, and 13 generate chattering nors from the cross point to a point that has advanced approximately 30 ° forward or later. there is a possibility.
- the U-phase chattering prevention circuit 14 is used for the first rising edge of the pulse signal HU2 or the first rising edge in the electrical angle range of 30 ° from the cross point of the differential U-phase rotational position signals HU +, HU—. Only the falling edge is detected. This will be specifically described below.
- the U-phase chattering prevention circuit 14 raises the pulse signal HU3 and maintains the level of the pulse signal HU3 at a high level.
- the U-phase chattering prevention circuit 14 causes the pulse signal HU3 to fall and maintains the level of the pulse signal HU3 at the low level. This operation does not depend on whether the rising or falling edge of the NOR signal HU2 is due to the differential U-phase rotational position signals HU +, HU- cross points or chattering pulses.
- the pulse signal HW2 rises or falls, the pulse signal HW2 is separated from the cross point of the differential W-phase rotation position signals HW + and HW- by an electrical angle of 30 ° or more. Level or high level, i.e. stable.
- the U-phase chattering prevention circuit 14 outputs a signal HU3 that rises or falls within a 30 ° electrical angle range from the differential U-phase rotational position signal HU +, HU- crosspoint. It is.
- This output signal HU3 has the same frequency as that of the U-phase rotational position signals HU + and HU-. The same applies to V-phase and W-phase chattering prevention circuits 15 and 16.
- the rotation speed pulse signal FG rises in synchronization with the rise of any of the output signals HU 3, HV3, and HW3 of the three-phase chattering prevention circuits 14, 15, 16 and falls in synchronization with the fall. Therefore, even if the rotation position signals HU +, HU ", HV +, HV", HW +, HW- are superimposed with noise close to 1Z2 of their amplitude, the rotation speed pulse signal FG has a frequency three times that of them. .
- the power driver control circuit 9 adjusts the motor drive timing based on the rotation speed pulse signal FG.
- the rotational speed pulse signal generation circuit 17 It is also possible to output any one of the output signals HU3, HV3, and HW3 as the rotation speed pulse signal FG.
- one of the three-phase comparators 11, 12, and 13 for example, the V-phase comparator 12
- two of the three-phase chattering prevention circuits 14, 15, and 16 for example, the V-phase and W-phase chattering prevention
- the circuits 15, 16 can be omitted.
- each of the three-phase chattering prevention circuits 14, 15, 16 can be configured by combining NOR circuits as shown in FIG.
- V and node A are nodes to which the NOR operation result of the inverted signal of the pulse signal HU2 and the pulse signal HW2 is input
- the node B is the pulse signal HU2 and the pulse signal HW2. This is the node where the result of NOR operation with the inverted signal is input.
- Node C is a node to which the NONOR result of the input of node A and the output signal HU 3 is input.
- Output signal HU3 is the result of NOR operation between the input at node B and the input at node C. That is, as shown in FIG. 5A, when the pulse signal HW2 is low level, the voltage at the node A changes high when the pulse signal HU2 rises, and the voltage at the node B increases when the pulse signal HW2 is high. When the level is high, when the noise signal HU2 falls, it changes to high level. In addition, a low level period with an electrical angle of 60 ° is provided between the high level period of the voltage at the node A and the high level period of the voltage at the node B. When the voltage at node B changes to high level, the output signal HU3 changes to low level.
- the output signal HU3 When the output signal HU3 changes to low level, the voltage at the node C changes to high level, so the level of the output signal HU3 is maintained at low level.
- the voltage at node A changes to high level
- the voltage at node B at this time is low level, so the output signal HU3 changes to high level
- the output signal HU3 changes to high level
- the voltage at node C changes. Since it changes to low level, the level of the output signal HU3 is maintained at high level. Therefore, the output signal HU3 has the waveform shown in Fig. 2 when noise is not superimposed on the rotational position signal, and the waveform shown in Fig. 3 when noise close to 1Z2 in amplitude is superimposed on the rotational position signal. It becomes.
- the three-phase chattering prevention circuits 14, 15, and 16 can of course implement the same logic with another circuit, and advance the phases of the output signals HU3, HV3, and HW3 as necessary. It can be delayed, delayed, or reversed.
- the U-phase chattering prevention circuit 14 rises at a point at an electrical angle of 60 ° or more away from the cross point of the differential U-phase rotational position signals H U +, HU- instead of the W-phase pulse signal HW2. Can also input a falling signal.
- the U-phase chattering prevention circuit 14 changes the output signal HU3 to the noise level in response to the rise of the U-phase pulse signal HU2 when the V-phase pulse signal HV2 is at the high level, and then the output signal When the HU3 level is held high and the V-phase pulse signal HV2 is low, the output signal HU3 is changed to low level in response to the falling edge of the U-phase pulse signal HU2, and then the output signal HU3 It is also possible to configure the level to be kept at a low level. The same applies to the V and W phase chattering prevention circuits 15 and 16.
- the three-phase chattering prevention circuits 14, 15, and 16 ensure chattering even when noise smaller than 1Z2 of the amplitude is superimposed on the rotational position signal regardless of the amplitude of the rotational position signal. Is prevented. Therefore, it is not necessary for the three-phase comparators 11, 12, 13 to have hysteresis that is easily affected by variations between products and temperature. For this reason, according to the present embodiment, generation of a rotation speed pulse signal indicating an incorrect rotation speed is suppressed. Depending on the motor device, noise larger than 1Z2 of the amplitude of the rotational position signal may be superimposed on the rotational position signal.
- a method of reducing the noise itself by adding a filter element to the line for transmitting the rotational position signal is also used. Even in this case, if the motor drive control circuit 2 is used, the time constant of the filter element can be reduced, so that the delay of the rotational position signal can be kept to a minimum and the decrease in the accuracy of motor drive can be suppressed.
- FIG. Fig. 4 shows the waveforms of rotational position signals HU +, HU ", HV +, HV", HW +, HW- without noise superposition when the motor rotates in the opposite direction to that in Fig. 2.
- the output signals HU3, HV3, HW3 of the three-phase chattering prevention circuits 14, 15, 16 have substantially the same waveforms as the inverted signals of the pulse signals HW2, HU2, HV2, respectively.
- the output signals HU3, HV3, and HW3 are derived from the pulse signals HU2, HV2, and HW2, respectively.
- the waveform is delayed by 0 °.
- a detailed description of the internal operation of the three-phase chattering prevention circuits 14, 15, 16 is omitted, for example, the internal operation of the U-phase chattering prevention circuit 14 is as shown in FIG. 5B.
- the waveform of each part when noise near 1Z2 of the amplitude of the rotational position signals HU +, HU “, HV +, HV", HW +, HW- is superimposed is not particularly shown in the figure.
- the output signals HU3, HV3, HW3 of the three-phase chattering prevention circuits 14, 15, 16 are the rotation position signals HIT, HU ", HV +, HV", HW +, HW _ and the frequency is the same. As a result, generation of a rotation speed pulse signal indicating an incorrect rotation speed is suppressed.
- a rotation direction signal generation circuit 18 that generates a rotation direction signal indicating the rotation direction of the motor M from the output signals HU3, HV3, HW3 of the chattering prevention circuits 14, 15, 16 Can be provided in the three-phase motor drive control circuit 2.
- the rotation direction signal generation circuit 18 is configured to maintain the level of the output signal HV3 according to the rising force S of the output signal HU3, a rotation direction signal indicating the rotation direction of the motor M can be generated. it can.
- various circuit configurations are possible.
- each of the three-phase comparators 11, 12, and 13 can be a circuit that compares the positive rotational position signals HU +, HV +, and HW + with a predetermined reference voltage.
- the chattering prevention circuit and the waveform shaping circuit including the same according to the embodiment of the present invention are not limited to a motor drive control circuit, but a control circuit that inputs at least two-phase sine wave signals having a phase difference of 60 ° or more. It is possible to use.
- the first, second, and third comparators in the present invention correspond to any of the three-phase comparators 11, 12, and 13 in the embodiment, and prevent the first, second, and third chattering.
- the circuit corresponds to one of the three-phase chattering prevention circuits 14, 15 and 16.
- the first comparator is the U-phase comparator 11
- the second comparator is the W-phase comparator 1.
- the third comparator is the V-phase comparator 12.
- the first chattering prevention circuit is a U-phase chattering prevention circuit 14
- the second chattering prevention circuit is a W-phase chattering prevention circuit 16
- the third chattering prevention circuit is a V-phase chattering prevention circuit. 15.
- the first-phase rotational position signal is a positive U-phase rotational position signal HU + or a negative U-phase rotational position signal HU-
- the second-phase rotational position signal is a positive W-phase rotational position signal HW + or negative.
- the third-phase rotational position signal is positive V-phase rotational position signal HV + or negative V-phase rotational position signal HV-.
- the first pulse signal is a U-phase pulse signal
- the second pulse signal is a W-phase pulse signal
- the third pulse signal is a V-phase pulse signal.
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Description
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/664,073 US7683562B2 (en) | 2004-10-15 | 2005-10-06 | Chattering preventing circuit, waveform shaping circuit including chattering preventing circuit, and three-phase motor drive control circuit including waveform shaping circuit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-302311 | 2004-10-15 | ||
| JP2004302311A JP4662124B2 (ja) | 2004-10-15 | 2004-10-15 | チャタリング防止回路、波形整形回路、3相モータ駆動制御回路、及び回転数パルス信号出力回路。 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006041005A1 true WO2006041005A1 (ja) | 2006-04-20 |
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| PCT/JP2005/018532 Ceased WO2006041005A1 (ja) | 2004-10-15 | 2005-10-06 | チャタリング防止回路、及び、チャタリング防止回路を備える波形整形回路、及び、波形整形回路を備える3相モータ駆動制御回路 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7683562B2 (ja) |
| JP (1) | JP4662124B2 (ja) |
| CN (1) | CN101040431A (ja) |
| TW (1) | TW200627801A (ja) |
| WO (1) | WO2006041005A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI394360B (zh) * | 2010-05-18 | 2013-04-21 | Kwang Yang Motor Co | Three - phase motor control system for electric vehicle and its control method |
| JP2013070524A (ja) | 2011-09-22 | 2013-04-18 | Toshiba Corp | モータ制御回路及びモータ制御システム |
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| JPH06169586A (ja) * | 1992-11-30 | 1994-06-14 | Sanyo Electric Co Ltd | モータ駆動制御回路 |
| JPH09247948A (ja) * | 1996-03-07 | 1997-09-19 | Hitachi Ltd | インバータ装置 |
| JP2002010676A (ja) * | 2000-06-20 | 2002-01-11 | Sanyo Electric Co Ltd | Fg信号のチャタリング防止回路 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5004981A (en) * | 1988-11-18 | 1991-04-02 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Detector device for simultaneously detecting both the direction and number of rotations of rotating member |
| US5153513A (en) * | 1990-05-25 | 1992-10-06 | Zexel Corporation | Apparatus for processing output signal of sensor with magnetic rotary member |
| JP3462027B2 (ja) * | 1997-01-16 | 2003-11-05 | 株式会社リコー | 画像形成装置のスキャナにおけるサーボ制御装置 |
| JP2000275527A (ja) * | 1999-03-24 | 2000-10-06 | Olympus Optical Co Ltd | 像検出装置 |
| US6940675B2 (en) * | 2003-11-24 | 2005-09-06 | Texas Instruments Incorporated | Efficient hard disk drive energy recovery circuit and method and a hard disk drive incorporating the same |
-
2004
- 2004-10-15 JP JP2004302311A patent/JP4662124B2/ja not_active Expired - Fee Related
-
2005
- 2005-10-06 US US11/664,073 patent/US7683562B2/en not_active Expired - Fee Related
- 2005-10-06 CN CNA2005800349492A patent/CN101040431A/zh active Pending
- 2005-10-06 WO PCT/JP2005/018532 patent/WO2006041005A1/ja not_active Ceased
- 2005-10-14 TW TW094136072A patent/TW200627801A/zh not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05176585A (ja) * | 1991-02-28 | 1993-07-13 | Matsushita Electric Ind Co Ltd | モータ速度制御用信号発生装置 |
| JPH06169586A (ja) * | 1992-11-30 | 1994-06-14 | Sanyo Electric Co Ltd | モータ駆動制御回路 |
| JPH09247948A (ja) * | 1996-03-07 | 1997-09-19 | Hitachi Ltd | インバータ装置 |
| JP2002010676A (ja) * | 2000-06-20 | 2002-01-11 | Sanyo Electric Co Ltd | Fg信号のチャタリング防止回路 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200627801A (en) | 2006-08-01 |
| JP2006115648A (ja) | 2006-04-27 |
| CN101040431A (zh) | 2007-09-19 |
| JP4662124B2 (ja) | 2011-03-30 |
| US20080106231A1 (en) | 2008-05-08 |
| TWI360299B (ja) | 2012-03-11 |
| US7683562B2 (en) | 2010-03-23 |
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