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JP2011199924A |
To provide a microstep damping constant speed drive of a stepping motor, using an existing and inexpensive drive circuit for driving a microstep, and having low vibrations at a constant speed drive.Fig.6 shows is a dynamic characteristic...
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JP4786099B2 |
A method and apparatus for driving a stepper motor such that when the motor is stepped, the velocity of the motor is substantially zero upon reaching a new stepped position, thereby eliminating overshoot and ringing, and the wasted energ...
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JP4787555B2 |
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JP4779672B2 |
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JP4782525B2 |
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JP2011188734A |
To detect reduction in a power supply voltage without arranging a dedicated circuit for detecting a voltage such as a comparator circuit.A controller controls the driving of a stepping motor 109 by selecting any of a plurality of main dr...
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JP4775711B2 |
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JP4776394B2 |
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JP4773891B2 |
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JP2011172471A |
To drive a stepping motor with a suitable driving pulse in consideration of the load condition of the stepping motor.A stepping-motor controlling circuit has a controller for selecting a main driving pulse P1, or a corrective driving pul...
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JP2011167367A |
To achieve lowered power consumption and miniaturization by connecting both the ends of a coiled wire to a VDD potential by turning on respective H arms in a bipolar constant voltage drive system reel drive unit.In a drive and stop contr...
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JP4760926B2 |
An indicating instrument includes a step motor having a field winding, a pointer, a reduction gear mechanism having gears, a stopper device for stopping the pointer at a stopper position, a detecting device for detecting induced voltage ...
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JP4760925B2 |
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JP2011167006A |
To solve such a problem that it takes time to stop a rotor since a period in which any winding is not conducted occurs if the winding to be conducted is changed when the winding different from winding of a stator, which is conducted just...
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JP2011158434A |
To provide a stepping motor control circuit capable of performing rotation driving of a stepping motor normally even in DC magnetic fields while inhibiting electric power consumption.The stepping motor control circuit including a rotatio...
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JP4747819B2 |
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JP4751573B2 |
Impact detecting resistors (141), (143) of an impact detecting circuit (104) detect a counter electromotive force of a step motor (105) generated due to an impact. This counter electromotive force is amplified applying a predetermined pe...
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JP4745838B2 |
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JP4746799B2 |
A method for driving a stepping motor which performs a micro step driving of the present invention makes a rise through rate variable by matching a step difference related to a change in a value of current when a value of current caused ...
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JP4744023B2 |
In a permanent magnet type three-phase stepping motor having a stator (1) having 3L pieces of stator pole and a rotor (2) having a permanent magnet (4, 9) magnetized so as to form a plurality ( Nr ) of N and S pole pairs, wherein a condi...
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JP2011147330A |
To enable a more stable rotation and achieve reduced power consumption by more accurately determining rotation state and performing appropriate pulse control.A control circuit includes a rotation detection circuit 110 and a controller. T...
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JP2011147235A |
To provide a microstep driving device of an m-phase stepping motor that enables microstep driving with a simple configuration with less torque ripples.The microstep driving device of the m-phase stepping motor includes the m-phase steppi...
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JP4731745B2 |
The stepping motor controller comprising an excitation signal generator, a switching circuit, a PWM constant current control circuit and a current sensor further comprises a motor detector circuit that transmits a control signal for gene...
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JP4731726B2 |
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JP4736399B2 |
The driving method of the present invention is a driving method to drive a stepping motor driven by a predetermined driving pulse, by the servo driving method, and is characterized in that a predetermined sampling period is set, and the ...
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JP4731192B2 |
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JP4718150B2 |
An output port open control device (65) allows a port (P3) which outputs PWM signals of a Cos+ side to be in a high impedance state in a period in which respective PWM signals of Cos+ and Cos- supplied to a S-phase coil (22) of a steppin...
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JP4719146B2 |
A biocompatible material having excellent biocompatibility such as small interaction with a component of a living body such as a protein or blood cell. A biocompatible material comprising a polymer obtained by polymerizing a monomer comp...
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JP4715397B2 |
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JP4719394B2 |
A stepper motor controller and method for controlling the motion of a stepper motor by selectively energizing the motor's windings so that the current level in the windings match a desired current profile. The motor controller comprises ...
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JP4717416B2 |
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JP4713973B2 |
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JP4704808B2 |
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JP4708994B2 |
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JP2011120372A |
To prevent malfunction of a stepping motor at the switching of control.A drive circuit 30 which controls a current flowing in a coil includes a current detector 182 which detects the current of the coil, an error amplifier 140 which outp...
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JP2011117974A |
To enable prevention of the time of day from going out of order, even if a shock is applied, and attainment of size reduction and lowering of the capacity of battery, at the same time.Impact detection resistances 141, 143 of an impact de...
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JP2011120353A |
To provide a combination balance with reduced power consumption.The combination balance includes a hopper that holds and discharges a weighed object, a hopper gate provided at a discharge port of the hopper, a stepping motor that drives ...
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JP4703846B2 |
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JP4694829B2 |
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JP4695924B2 |
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JP4695900B2 |
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JP4690189B2 |
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JP4690707B2 |
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JP4688050B2 |
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JP4688040B2 |
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JP2011101576A |
To accurately detect whether a stepping motor is rotated when being driven immediately after pulse-down.A control circuit 103 drives the stepping motor 105 with a first main drive pulse P1 after pulse-down, and then drives the same with ...
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JP4681130B2 |
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JP4681955B2 |
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JP4678434B2 |
A stepping motor controlling device includes first and second clock signal generators, plural drivers, and a controller. The first clock signal generator generates a reference clock signal for rotationally driving of plural stepping moto...
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JP4678668B2 |
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