WO2009101676A1 - モータ駆動装置 - Google Patents
モータ駆動装置 Download PDFInfo
- Publication number
- WO2009101676A1 WO2009101676A1 PCT/JP2008/052344 JP2008052344W WO2009101676A1 WO 2009101676 A1 WO2009101676 A1 WO 2009101676A1 JP 2008052344 W JP2008052344 W JP 2008052344W WO 2009101676 A1 WO2009101676 A1 WO 2009101676A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switching element
- current
- coil
- voltage
- turned
- Prior art date
Links
- 238000001514 detection method Methods 0.000 claims abstract description 68
- 230000001172 regenerating effect Effects 0.000 claims abstract description 17
- 230000007423 decrease Effects 0.000 claims description 8
- 230000005284 excitation Effects 0.000 description 22
- 101000806846 Homo sapiens DNA-(apurinic or apyrimidinic site) endonuclease Proteins 0.000 description 18
- 101000835083 Homo sapiens Tissue factor pathway inhibitor 2 Proteins 0.000 description 18
- 102100026134 Tissue factor pathway inhibitor 2 Human genes 0.000 description 18
- 101100152598 Arabidopsis thaliana CYP73A5 gene Proteins 0.000 description 16
- 230000003071 parasitic effect Effects 0.000 description 15
- 101100219315 Arabidopsis thaliana CYP83A1 gene Proteins 0.000 description 12
- 101100269674 Mus musculus Alyref2 gene Proteins 0.000 description 12
- 101100140580 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) REF2 gene Proteins 0.000 description 12
- 230000006378 damage Effects 0.000 description 5
- 239000008186 active pharmaceutical agent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
- H02P8/36—Protection against faults, e.g. against overheating or step-out; Indicating faults
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
- B41J19/20—Positive-feed character-spacing mechanisms
- B41J19/202—Drive control means for carriage movement
-
- 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
- H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
- H02P8/12—Control or stabilisation of current
Definitions
- the present invention relates to a motor drive device.
- FIG. 6 is a diagram illustrating an example of a general motor driving device that drives a two-phase stepping motor.
- a motor M is configured by the coils L1 and L2 that form the A-phase magnetic field and the coils L3 and L4 that form the B-phase magnetic field, and a motor driving device 100 is provided to control the driving of the motor M.
- the motor driving apparatus 100 includes switching elements F1 to F4 that control currents flowing through the coils L1 to L4, an output control unit 102 that controls on / off of the switching elements F1 to F4, and resistors R1 and R1 that detect currents flowing through the coils L1 to L4.
- R2 and a current detection unit 104 that detects whether or not the current flowing through the coils L1 to L4 has reached a predetermined current.
- the output control unit 102 causes a current to flow through the motor coil L1 by turning on the switching element F1.
- the current flowing through the coil L1 increases with time, and the current detection voltage appearing at one end of the resistor R1 also increases.
- the output control unit 102 determines that the current flowing through the coil L1 has reached the predetermined current, and switching is performed.
- the element F1 is turned off. After that, the output control unit 102 repeatedly turns on and off the switching element F1.
- the other switching elements F2 to F4 are similarly controlled. That is, in the motor drive device 100, the amount of current flowing through the coils L1 to L4 is adjusted by PWM (Pulse Width Modulation) control.
- PWM Pulse Width Modulation
- a set of transformer structures is formed by the A-phase coils L1 and L2, and a set of transformer structures is formed by the B-phase coils L3 and L4. Therefore, for example, when the switching element F1 is turned on / off, as shown in FIG. 7A, current flows in the coil L1 and energy is accumulated while the switching element F1 is on, as shown in FIG. 7B. In addition, when the switching element F1 is turned off, the energy accumulated in the coil L1 is transferred to the coil L2, and is consumed by the regenerative current flowing from the parasitic diode of the switching element F2 through the path of the coil L2. That is, as shown in FIG.
- the current ID flowing through the switching element F1 increases while the switching element F1 is on, and when the switching element F1 is turned off, the current ID immediately decreases and the switching element F1
- the drain-source voltage V DS increases.
- the switching element F2 is turned on / off, the energy accumulated in the coil L2 while the switching element F2 is on is transmitted to the coil L1 when the switching element F2 is turned off, and from the parasitic diode of the switching element F1 to the coil L1. It is consumed by the current flowing through the path.
- the energy accumulated in the coil L1 is absorbed by the switching element F1 as avalanche energy and is gradually consumed by the avalanche current flowing through the switching element F1.
- the drain-source voltage V DS of the switching element F1 becomes very high. Therefore, when the switching element F1 is repeatedly turned on and off while the coil L2 is disconnected from the motor driving device 100, The switching element F1 may be thermally destroyed due to an increase in the temperature of the junction.
- FIG. 10 is a diagram illustrating a configuration example of a motor driving device having a function of preventing thermal destruction of the switching element.
- motor drive device 120 further includes a current detection unit 122 for detecting whether or not an avalanche current is generated.
- the switching elements F1 to F4 are held off, thereby suppressing the occurrence of the avalanche state.
- the current detection voltage V R1 that appears at one end of the resistor R1 is: The voltage rises to V REF1 during the ON period of the switching element F1, and changes so as to suddenly become a negative voltage when the switching element F1 is turned OFF.
- the current detection unit 122 compares the reference voltage V REF2 lower than the reference voltage V REF1 with the current detection voltage V R1 . Then, based on the detection result of the current detection unit 122, the output control unit 102 determines that the current detection voltage V R1 is higher than the reference voltage V REF2 a predetermined time after the switching element F1 is turned off. Therefore, it is determined that an avalanche current is generated, and the switching element is held off. Even when the switching elements F2 to F4 are turned on and off, the avalanche current is detected by the same operation.
- the motor drive device 120 detects whether or not the coils L1 to L4 are disconnected from the motor drive device 120 by the avalanche current.
- the coils L1 to L4 are normally connected to the motor driving device 120. Even in such a case, there is a risk of erroneous detection that the coils L1 to L4 are disconnected from the motor drive device 120.
- a hybrid motor and a PM (Permanent Magnet) motor coupling between the coils L1 and L2 and between the coils L3 and L4 may be worse in the PM motor due to variations in product characteristics.
- the timing for detecting the avalanche current is delayed after the switching element is turned off. There is a need. However, if the detection timing of the avalanche current is delayed, the avalanche state cannot be detected in the case of a hybrid motor in which the time of the avalanche state when the coil is disconnected is relatively short.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a motor drive device capable of preventing thermal destruction of a switching element regardless of the motor specifications.
- the motor driving device of the present invention has one end connected to the power supply side and the other end and one end of the first coil of the stepping motor having first and second coils electromagnetically coupled to each other.
- the other end is connected to the ground side
- the switching element for controlling the current flowing through the first coil one end is connected to the other end of the second coil, the other end is connected to the ground side
- a rectifying element capable of energizing in the direction of the second coil
- a coil current detecting unit capable of detecting a current flowing through the first coil
- a regenerative current detecting unit capable of detecting a current flowing through the rectifying element, at a predetermined interval
- the switching element is turned on, and the switching element is turned off when a current flowing through the first coil reaches a predetermined set current based on a detection result of the coil current detection unit.
- FIG. 1 It is a figure which shows the structure of the motor drive device which is one Embodiment of this invention. It is a figure which shows the outline
- FIG. 1 is a diagram showing a configuration of a motor drive device according to an embodiment of the present invention.
- the motor driving device 10 is integrated and drives the motor M connected via the connection terminal.
- the motor M is a two-phase unipolar stepping motor including coils L1 to L4.
- Coils L1 and L2 are wound around the same stator in opposite directions and are electromagnetically coupled to form an A-phase magnetic field.
- the coils L3 and L4 are wound around the same stator in opposite directions and are electromagnetically coupled to form a B-phase magnetic field.
- the coils L1 to L4 have one end applied with a power supply voltage V CC of 24V, for example, and the other end connected to the switching elements F1 to F4 via connection terminals.
- Switching elements F1 to F4 are elements that control energization of the coils L1 to L4, and are realized by N-channel MOSFETs in this embodiment. Further, a parasitic diode is formed between the drains and sources of the switching elements F1 to F4 with the forward direction from the ground side to the power source side.
- the resistor R1 is for detecting the current flowing through the coils L1 and L2, and one end is connected to the sources of the switching elements F1 and F2, and the other end is grounded.
- the resistor R2 is for detecting the current flowing through the coils L3 and L4, and one end is connected to the sources of the switching elements F3 and F4 and the other end is grounded. Therefore, voltages V R1 and V R2 (first detection voltages) corresponding to the currents flowing through the coils L1 to L4 are generated at the connection points between the resistors R1 and R2 and the switching elements F1 to F4.
- the excitation unit 12 outputs an excitation signal for controlling energization of the coils L1 to L4 according to an excitation method such as two-phase excitation or 1-2 phase excitation.
- the motor M rotates at a predetermined angle each time the excitation signal output from the excitation unit 12 is switched.
- a signal for controlling the rotation speed of the motor M is input to the excitation unit 12 from an external microcomputer or the like, and the pulse width of the excitation signal output from the excitation unit 12 depends on the rotation speed. ing.
- the current control unit 14 compares the voltages V R1 and V R2 with a predetermined reference voltage V REF1 , so that the current flowing through the coils L1 to L4 becomes a predetermined set current corresponding to the reference voltage V REF1.
- the on / off states of the switching elements F1 to F4 are controlled so that For example, when a current is passed through the coil L1 in response to the excitation signal from the excitation unit 12, the current control unit 14 outputs a signal that turns on the switching element F1 and passes the current through the coil L1, and the voltage V R1 When the voltage reaches the reference voltage V REF1 , a signal that turns off the switching element F1 is output, and after the switching element F1 turns off, a process that outputs a signal that turns on the switching element F1 again at a predetermined timing is repeated. .
- the switching element F1 When the switching element F1 is turned off from on, the energy accumulated in the coil L1 is transmitted to the coil L2, and a negative current (regenerative current) flows through the coil L2 via the parasitic diode (rectifier element) of the switching element F2. .
- the maximum absolute value of the negative current is approximately the same as the maximum value of the current flowing through the coil L1.
- a negative current flows through the coil L1 via the parasitic diode of the switching element F1.
- the switching elements F1 to F4 are PWM-controlled, so that the current flowing through the coils L1 to L4 is controlled to be a predetermined set current according to the reference voltage V REF1 .
- the reference clock generation circuit 16 generates a clock signal having a predetermined frequency that serves as a reference for turning on the switching elements F1 to F4 when the current control unit 14 performs PWM control of the switching elements F1 to F4.
- the switching elements F1 to F4 are turned on at the falling timing of the clock signal output from the reference clock generation circuit 16.
- the reference clock generation circuit 18 generates a clock signal that rises before the clock signal output from the reference clock generation circuit 16 with the same timing of falling as the clock signal output from the reference clock generation circuit 16.
- the resistors R3 to R6 detect whether or not a negative current whose absolute value is larger than a predetermined set value flows through the switching elements F1 to F4 during a period in which the switching elements F1 to F4 are turned off after being turned on. Part. When a negative current larger than the predetermined set value is not flowing, it is determined that the coils L1 to L4 are not normally connected to the motor driving device 10, and the signal output from the AND circuit 43 becomes L level and AND.
- the circuit constituted by the FFs 26 to 31, the falling delay circuit 34, the AND circuits 37 to 47, the NAND circuits 50 to 53, the OR circuits 56 and 57, the EXOR circuits 60 and 61, and the NOT circuit 64 stops the present invention. It corresponds to a signal output circuit.
- a circuit constituted by the comparison circuits 20 and 21, FFs 26 and 27, and AND circuits 37 to 40 corresponds to the set current detection circuit of the present invention.
- the comparison circuit 22 outputs a signal indicating whether or not a negative current larger than a predetermined set value has flowed based on the voltage V R1 .
- a voltage obtained by dividing the positive voltage of 5V and the voltage V R1 by the resistors R3 and R4 is compared with a predetermined reference voltage V REF3 +.
- the resistors R3 and R4 have a voltage at the connection point of the resistors R3 and R4 of V REF3 + when the voltage V R1 is the negative reference voltage V REF3 so that the comparison circuit 22 can compare the voltages at a positive level.
- a level shift circuit for level shifting the voltage V R1 is configured.
- the resistors R5 and R6 are level shift circuits for level-shifting the voltage V R2 .
- the switching elements F2 to F4 are turned on / off, the negative current is detected.
- the maximum value of the absolute value of the negative current generated when the switching elements F1 to F4 are turned from on to off is approximately the same as the maximum value of the positive current according to the reference voltage V REF1 flowing through the coils L1 to L4. Therefore, when the reference voltage V REF1 is low, the maximum value of the absolute value of the negative current is also small, and even if the coils L1 to L4 are normally connected to the motor drive device 10, the reference voltage V REF3 Therefore, it may be determined that the coils L1 to L4 are disconnected from the motor drive device 10.
- the switching elements F1 to F4 are turned off based on the disconnection determination of the coils L1 to L4. . Specifically, based on whether or not the voltages V R1 and V R2 are higher than a predetermined reference voltage V REF2 whose absolute value is larger than the reference voltage V REF3 during the period when the switching elements F1 to F4 are on. It is determined whether or not the maximum value of the positive current flowing through the coils L1 to L4 is greater than a predetermined level.
- the comparison circuit 20 compares the voltage V R1 with the reference voltage V REF2 . That is, when the voltage V R1 becomes higher than the reference voltage V REF2, it is determined that the maximum value of the positive current flowing through the coil L1 is higher than a predetermined level. The same applies when the switching elements F2 to F4 are turned on and off.
- the voltage V R1 also becomes a negative voltage corresponding to the current I AB .
- the current control unit 14 changes the signal S1 to H level again based on the clock signal output from the reference clock generation circuit 16, the current I A increases.
- the switching element F1 is set so that the maximum value of the current flowing through the coil L1 becomes a predetermined set current according to the reference voltage V REF1. PWM controlled.
- the reference clock generation circuit 16 outputs a clock signal (1) having a predetermined frequency that serves as a reference for PWM control, and the reference clock generation circuit 18 outputs a falling edge of the clock signal (1).
- a clock signal (2) that rises before the clock signal (1) at the same timing is output.
- the switching element F1 When the switching element F1 is turned on, the voltage V R1 increases. When the switching element F1 reaches the reference voltage V REF1 , the signal (3) output from the current control unit 14 becomes L level. When the signal (3) becomes L level, the switching element F1 is turned off. In a state where the coil L2 is normally connected, a negative current flows through the parasitic diode of the switching element F2, and the voltage V R1 drops to a negative voltage having an absolute value similar to the reference voltage V REF1 . In the example of FIG. 3, the reference voltage V REF1 is higher than the reference voltage V REF2 , and the negative voltage V R1 generated when the coil L2 is normally connected is lower than the reference voltage V REF3 .
- the NAND circuit 50 receives the H level signal for controlling the energization to the coil L1 output from the excitation unit 12 and the signal (3) output from the current control unit 14, the NAND circuit 50
- the signal (4) output from the circuit 50 is an inverted signal of the signal (3).
- the signal output from the comparison circuit 20 is at the H level during the period when the voltage V R1 is higher than the reference voltage V REF2 .
- the signal (6) output from the comparison circuit 22 is at the H level during the period when the voltage V R1 is lower than the reference voltage V REF3 .
- the coil L2 is normally connected, and the coil is generated by the negative current flowing through the parasitic diode of the switching element F2.
- the energy stored in L1 is consumed.
- the signal (6) changes after the delay time Td from the fall of the signal (3) due to the response delay of the switching element F1.
- the AND circuit 37 receives the clock signal (1) and the signal (5) output from the comparison circuit 20. Therefore, the signal (7) output from the AND circuit 37 is at the H level during the period in which the voltage V R1 is higher than the reference voltage V REF2 after the clock signal (1) rises.
- the signal (7) is input to the clock input terminal C of the FF 26, and the clock signal (2) is input to the reset terminal R of the FF 26. Therefore, the signal (8) output from the output terminal Q of the FF 26 is reset to the L level at the falling edge of the clock signal (2), and then becomes the H level at the rising edge of the signal (7). That is, the signal (8) is at the H level during the period from the rising edge to the falling edge of the clock signal (1) when the reference voltage V REF1 is higher than the reference voltage V REF2 .
- the AND circuit 39 receives the signal (4) output from the OR circuit 56 and the signal (8) output from the FF 26. Since the signal (4) is H level during the period when the switching element F1 is OFF, the signal (9) output from the AND circuit 39 is PWM when the switching element F1 is PWM with the reference voltage V REF1 higher than the reference voltage V REF2. The switching element F1 in the controlled state is at the H level during the off period.
- the signal (10) output from the falling delay circuit 34 is a signal obtained by delaying the falling of the signal output from the AND circuit 39 by a minute time.
- the signal (6) output from the comparison circuit 22 is input to the clock input terminal C of the FF 28, and the signal (10) output from the falling delay circuit 34 is input to the reset terminal R of the FF 28. Therefore, the signal (11) output from the output terminal Q of the FF 28 becomes H level when the voltage V R1 becomes lower than the reference voltage V REF3 during the period when the switching element F1 is OFF, and then the switching element F1 is turned ON. After a short time, the signal becomes L level. That is, the signal (11) indicates whether or not a normal regenerative current is generated in a period in which the switching element F1 is turned off after being turned on.
- the signal (11) output from the FF 28 and the signal (10) output from the falling delay circuit 34 are input to the EXOR circuit 60. Therefore, when the coil L2 is normally connected, the signal (12) output from the EXOR circuit 60 is a period of a minute delay time Td from when the signal (10) rises to when the signal (11) rises. Becomes H level.
- the AND circuit 41 receives a signal (13) obtained by inverting the clock signal (2) by the NOT circuit 64 and a signal (12) output from the EXOR circuit 60.
- a signal (13) obtained by inverting the clock signal (2) by the NOT circuit 64 and a signal (12) output from the EXOR circuit 60.
- the FF 30 is reset as an initial state, and the signal (15) output from the inverting output terminal / Q is at the H level.
- the signal (15) is maintained at the H level. Therefore, the signal output from the AND circuit 44 changes according to the signal (3) output from the current control unit 14, and the switching element F1 is turned on / off based on the clock signal (2).
- the signal (12) output from the EXOR circuit 60 becomes the H level during the OFF period of the switching element F1 in the PWM control indicated by the signal (10). Since the falling timing of the signal (10) is later than the falling timing of the clock signal (2), the signal (12) falls after the signal (13) rises. Therefore, the signal (14) output from the AND circuit 41 is at the H level during the period when both the signals (12) and (13) are at the H level. Then, when the signal (14) becomes H level, the signal (15) output from the inverting output terminal / Q of the FF 30 becomes L level. As a result, all the signals output from the AND circuits 44 to 47 become L level, and the switching elements F1 to F4 are all held off.
- the motor drive device 10 when the negative current whose absolute value is larger than the predetermined set value does not flow through the parasitic diode of the switching element F2 during the period when the switching element F1 is turned off after being turned on, It is determined that L2 is disconnected from the motor drive device 10, and the switching elements F1 to F4 are held off. The same applies to the switching elements F2 to F4. Therefore, as shown in FIG. 4, for example, when the voltage V R1 decreases slowly when the switching element F1 is turned off from the on state, the motor specification is a predetermined level after a predetermined time from turning on to off.
- the disconnection of the coil L2 is determined not by whether or not a larger avalanche current flows, but by whether or not a negative current having an absolute value greater than a predetermined set value flows during the period when the switching element F1 is OFF, the disconnection of the coil L2 False detection can be prevented. That is, it becomes possible to prevent thermal destruction of the switching element regardless of the motor specifications.
- Whether or not a negative current having an absolute value larger than a predetermined set value flows during the period when the switching element F1 is OFF is generated by the resistor R1 with a voltage VR1 corresponding to the current flowing through the parasitic diode of the switching element F2. It can be determined by detecting whether V R1 has become lower than a predetermined level of negative voltage V REF3 .
- the negative voltage V R1 and the negative reference voltage V REF3 can be compared using a comparison circuit capable of positive voltage comparison.
- the motor drive device 10 when the maximum value of the current flowing through the coil during the period when the switching element is on is smaller than the absolute value of the detection level of the negative current flowing during the period when the switching element is off after the switching element is on.
- the determination of the disconnection of the coil is not performed. That is, for example, as shown in FIG. 5, when the maximum value of the current flowing through the coil is changed stepwise by microstepping driving, the switching element is in the off period when the maximum value of the current flowing through the coil is small.
- the absolute value of the negative current generated is small even when the coil is normally connected. Therefore, it is possible to prevent erroneous detection of coil breakage by not determining the coil breakage during such a period.
- Whether the maximum value of the current that flows in the coil during the period when the switching element is on is smaller than the absolute value of the detection level of the negative current that flows during the period when the switching element is off after being on is based on the absolute value.
- the determination can be made by comparing the positive reference voltage V REF2 greater than the voltage V REF3 with the voltage V R1 .
- the said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention.
- the present invention can be changed and improved without departing from the gist thereof, and the present invention includes equivalents thereof.
- the switching element F1 when the switching element L1 is turned off from on, the regenerative current flows through the parasitic diode of the switching element F2.
- the switching element F1 is turned off from on.
- a regenerative current may be passed through the switching element F2.
- the switching element F2 corresponds to a rectifying element for flowing a regenerative current.
- a rectifying element such as a diode for flowing a regenerative current may be provided separately.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Stepping Motors (AREA)
Abstract
Description
L1~L4 コイル
F1~F4 スイッチング素子
R1~R6 抵抗
10 モータ駆動装置
12 励磁部
14 電流制御部
16,18 基準クロック生成回路
20~23 比較回路
26~31 フリップフロップ(FF)
34 立ち下がり遅延回路
37~47 AND回路
50~53 NAND回路
56,57 OR回路
60,61 EXOR回路
64 NOT回路
Claims (5)
- 一端が電源側に接続されるとともに電磁結合された第1及び第2コイルを有するステッピングモータの前記第1コイルの他端と一端が接続され、他端が接地側に接続され、前記第1コイルに流れる電流を制御するスイッチング素子と、
一端が前記第2コイルの他端と接続され、他端が接地側に接続され、接地側から前記第2コイルの向きに通電可能な整流素子と、
前記第1コイルに流れる電流を検出可能なコイル電流検出部と、
前記整流素子に流れる電流を検出可能な回生電流検出部と、
所定間隔で前記スイッチング素子をオンするとともに、前記コイル電流検出部での検出結果に基づいて、前記第1コイルを流れる電流が所定の設定電流に達すると前記スイッチング素子をオフする制御部と、
前記スイッチング素子がオンの後にオフとなっている期間に、前記回生電流検出部での検出結果に基づいて、絶対値が所定の設定値より大きい負電流が前記整流素子を流れたかどうかを検出する負電流検出部と、
を備え、
前記制御部は、前記負電流検出部の検出結果に基づいて、前記負電流が流れていない場合は前記スイッチング素子をオフのまま保持すること、
を特徴とするモータ駆動装置。 - 請求項1に記載のモータ駆動装置であって、
前記回生電流検出部は、一端が前記整流素子の他端に接続され、他端が接地側に接続され、前記整流素子を流れる電流に応じた第1検出電圧を生成する第1抵抗を含んで構成され、
前記制御部は、前記スイッチング素子がオンとなっている期間に、前記第1検出電圧が前記設定電流に応じた所定レベルの電圧に達すると前記スイッチング素子をオフし、
前記負電流検出部は、前記スイッチング素子がオンの後にオフとなっている期間に、前記第1検出電圧が前記負電流に応じた所定レベルの負電圧より低くなったかどうかを検出し、
前記制御部は、前記第1検出電圧が前記負電圧より低くならなかった場合は前記スイッチング素子をオフのまま保持すること、
を特徴とするモータ駆動装置。 - 請求項2に記載のモータ駆動装置であって、
前記負電流検出部は、
前記第1検出電圧の低下に応じて低くなり、前記第1検出電圧が前記負電圧の際に所定レベルの正電圧となるよう前記第1検出電圧をレベルシフトするレベルシフト回路と、
レベルシフトされた前記第1検出電圧と、前記正電圧とを比較する比較回路と、
前記比較回路の比較結果に基づいて、前記スイッチング素子がオンの後にオフとなっている期間に、レベルシフトされた前記第1検出電圧が前記正電圧より低くならなかった場合は前記スイッチング素子のスイッチングを停止させるための停止信号を出力する停止信号出力回路と、
を含んで構成され、
前記制御部は、前記停止信号が出力されると前記スイッチング素子をオフのまま保持すること、
を特徴とするモータ駆動装置。 - 請求項1~3の何れか一項に記載のモータ駆動装置であって、
前記設定電流が可変であり、前記設定電流の絶対値が前記負電流の絶対値より大きいかどうかを検出する設定電流検出部を更に含んで構成され、
前記制御部は、前記設定電流検出部及び前記負電流検出部の検出結果に基づいて、前記設定電流の絶対値が前記負電流の絶対値より大きい期間に前記負電流が流れていない場合は前記スイッチング素子をオフのまま保持し、前記設定電流の絶対値が前記負電流の絶対値より小さい期間は前記負電流の検出結果にかかわらず前記スイッチング素子を前記所定間隔でオンすること、
を特徴とするモータ駆動装置。 - 請求項4に記載のモータ駆動装置であって、
前記コイル電流検出部は、一端が前記スイッチング素子の他端に接続され、他端が接地側に接続され、前記第1コイルに流れる電流に応じた第2検出電圧を生成する第2抵抗を含んで構成され、
前記設定電流検出部は、前記スイッチング素子がオンとなっている期間に、前記第2検出電圧が、前記第1コイルを流れる電流が前記設定電流の際の前記第2検出電圧より高い所定レベルの電圧を超えたかどうか検出し、
前記制御部は、前記設定電流検出部及び前記負電流検出部の検出結果に基づいて、前記スイッチング素子がオンとなっている期間に前記第2検出電圧が前記所定レベルの電圧を超え、前記スイッチング素子がオンの後にオフとなっている期間に前記負電流が流れていない場合は、前記スイッチング素子をオフのまま保持し、前記スイッチング素子がオンとなっている期間に前記第2検出電圧が前記所定レベルの電圧を超えなかった場合は、前記負電流の検出結果にかかわらず前記スイッチング素子を前記所定間隔でオンすること、
を特徴とするモータ駆動装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008801076301A CN101803173B (zh) | 2008-02-13 | 2008-02-13 | 马达驱动装置 |
KR1020107017759A KR101199173B1 (ko) | 2008-02-13 | 2008-02-13 | 모터 구동 장치 |
PCT/JP2008/052344 WO2009101676A1 (ja) | 2008-02-13 | 2008-02-13 | モータ駆動装置 |
JP2009553298A JP4549434B2 (ja) | 2008-02-13 | 2008-02-13 | モータ駆動装置 |
EP08711202A EP2244371A1 (en) | 2008-02-13 | 2008-02-13 | Motor drive device |
US12/856,362 US8159176B2 (en) | 2008-02-13 | 2010-08-13 | Motor driving device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2008/052344 WO2009101676A1 (ja) | 2008-02-13 | 2008-02-13 | モータ駆動装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/856,362 Continuation US8159176B2 (en) | 2008-02-13 | 2010-08-13 | Motor driving device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009101676A1 true WO2009101676A1 (ja) | 2009-08-20 |
Family
ID=40956723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/052344 WO2009101676A1 (ja) | 2008-02-13 | 2008-02-13 | モータ駆動装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8159176B2 (ja) |
EP (1) | EP2244371A1 (ja) |
JP (1) | JP4549434B2 (ja) |
KR (1) | KR101199173B1 (ja) |
CN (1) | CN101803173B (ja) |
WO (1) | WO2009101676A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011067061A (ja) * | 2009-09-18 | 2011-03-31 | Sanyo Electric Co Ltd | ドライバ回路 |
JP2011067063A (ja) * | 2009-09-18 | 2011-03-31 | Sanyo Electric Co Ltd | ドライバ回路 |
JP2011067062A (ja) * | 2009-09-18 | 2011-03-31 | Sanyo Electric Co Ltd | ドライバ回路 |
KR101232439B1 (ko) | 2009-09-18 | 2013-02-12 | 산요 세미컨덕터 컴퍼니 리미티드 | 드라이버 장치 |
JP7463817B2 (ja) | 2020-04-01 | 2024-04-09 | コニカミノルタ株式会社 | モータ制御装置、モータ制御装置の設定方法および画像形成装置 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2775598B1 (en) * | 2013-03-05 | 2018-01-17 | Dialog Semiconductor GmbH | Active avalanche protection for flyback converter |
DE102014108300B4 (de) | 2014-06-12 | 2022-02-24 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Optoelektronische Halbleiterbauelemente |
JP6638616B2 (ja) * | 2016-09-30 | 2020-01-29 | 株式会社デンソー | 電源制御装置 |
JP7300606B2 (ja) * | 2019-10-25 | 2023-06-30 | 株式会社Fuji | 部品実装機 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02303398A (ja) * | 1989-05-17 | 1990-12-17 | Brother Ind Ltd | ステッピングモータの断線検出回路 |
JP2006025575A (ja) * | 2004-07-09 | 2006-01-26 | Sanken Electric Co Ltd | ステッピングモータ駆動装置の断線検出装置 |
JP2007124849A (ja) | 2005-10-31 | 2007-05-17 | Sanyo Electric Co Ltd | モータの駆動制御装置および回路装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4710686A (en) * | 1986-08-04 | 1987-12-01 | Guzik Technical Enterprises | Method and apparatus for control of current in a motor winding |
US5032780A (en) * | 1989-09-29 | 1991-07-16 | Sgs-Thomson Microelectronics, Inc. | Programmable stepper motor controller |
GB2264405B (en) * | 1992-02-12 | 1996-06-12 | Mars Inc | Stepper motor drive circuit |
JPH07322693A (ja) * | 1994-05-24 | 1995-12-08 | Canon Inc | ステッピングモータ駆動装置およびステッピングモータ駆動手段を用いた記録装置 |
-
2008
- 2008-02-13 KR KR1020107017759A patent/KR101199173B1/ko active IP Right Grant
- 2008-02-13 EP EP08711202A patent/EP2244371A1/en not_active Withdrawn
- 2008-02-13 CN CN2008801076301A patent/CN101803173B/zh not_active Expired - Fee Related
- 2008-02-13 WO PCT/JP2008/052344 patent/WO2009101676A1/ja active Application Filing
- 2008-02-13 JP JP2009553298A patent/JP4549434B2/ja not_active Expired - Fee Related
-
2010
- 2010-08-13 US US12/856,362 patent/US8159176B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02303398A (ja) * | 1989-05-17 | 1990-12-17 | Brother Ind Ltd | ステッピングモータの断線検出回路 |
JP2006025575A (ja) * | 2004-07-09 | 2006-01-26 | Sanken Electric Co Ltd | ステッピングモータ駆動装置の断線検出装置 |
JP2007124849A (ja) | 2005-10-31 | 2007-05-17 | Sanyo Electric Co Ltd | モータの駆動制御装置および回路装置 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011067061A (ja) * | 2009-09-18 | 2011-03-31 | Sanyo Electric Co Ltd | ドライバ回路 |
JP2011067063A (ja) * | 2009-09-18 | 2011-03-31 | Sanyo Electric Co Ltd | ドライバ回路 |
JP2011067062A (ja) * | 2009-09-18 | 2011-03-31 | Sanyo Electric Co Ltd | ドライバ回路 |
KR101232439B1 (ko) | 2009-09-18 | 2013-02-12 | 산요 세미컨덕터 컴퍼니 리미티드 | 드라이버 장치 |
JP7463817B2 (ja) | 2020-04-01 | 2024-04-09 | コニカミノルタ株式会社 | モータ制御装置、モータ制御装置の設定方法および画像形成装置 |
Also Published As
Publication number | Publication date |
---|---|
CN101803173B (zh) | 2012-09-19 |
KR101199173B1 (ko) | 2012-11-07 |
JP4549434B2 (ja) | 2010-09-22 |
EP2244371A1 (en) | 2010-10-27 |
JPWO2009101676A1 (ja) | 2011-06-02 |
KR20100116188A (ko) | 2010-10-29 |
US8159176B2 (en) | 2012-04-17 |
US20110025251A1 (en) | 2011-02-03 |
CN101803173A (zh) | 2010-08-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4549434B2 (ja) | モータ駆動装置 | |
TWI629867B (zh) | 流經低側場效電晶體之電流的感測系統及方法 | |
US8072177B2 (en) | Stepping motor driver | |
JP3124473U (ja) | ブラシレス直流モータのモータ制御装置 | |
JP5144315B2 (ja) | ブラシレスdcモータの駆動回路 | |
US7622873B2 (en) | Motor drive device and drive method | |
JP4735481B2 (ja) | 車両用交流発電機の制御装置の温度保護装置 | |
US20100181951A1 (en) | Motor drive circuit | |
JP2011114995A (ja) | モータ用駆動回路及びそれを備えたモータ | |
JP2009131105A (ja) | モータの駆動回路 | |
US20210075348A1 (en) | Motor driving device having lock protection mode | |
US11323053B2 (en) | Bipolar stepper motor driving device | |
KR101240002B1 (ko) | 모터 구동 장치 | |
JP2008072788A (ja) | モータ駆動装置、ブラシレスモータ及びその駆動方法 | |
US11264926B2 (en) | Driving circuit and method for stepping motor | |
JP5250746B2 (ja) | モータ駆動装置 | |
KR101388774B1 (ko) | 모터 제어 회로, 모터 구동 장치 및 모터 구동 방법 | |
US8963467B2 (en) | Motor driving device and method of controlling the same | |
JP5250747B2 (ja) | モータ駆動装置 | |
JP2009254107A (ja) | ブラシレスdcモータの制御装置 | |
JP2018207769A (ja) | ステッピングモータの駆動回路、それを用いたシステム、ステッピングモータの制御方法 | |
JP2013074751A (ja) | ステッピングモータの駆動回路 | |
JP2006129543A (ja) | ステッピングモータ駆動装置およびステッピングモータ駆動方法 | |
WO2021193364A1 (ja) | ステッピングモータ用のドライバ装置 | |
JP2008289225A (ja) | モータ駆動回路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200880107630.1 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08711202 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2009553298 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20107017759 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008711202 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |