Driving method, driving mechanism, and image capturing apparatus
First Claim
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1. A driving mechanism, comprising:
- a stepping motor driven by a predetermined driving pulse; and
a driving pulse generation controller that controls a generation condition of the driving pulse,wherein a predetermined sampling period is set in the driving pulse generation controller, and the driving pulse generation controller resets the driving pulse generation condition at each of a plurality of the sampling periods and performs a calculation to determine the driving pulse generation condition in a sampling interval up to the next sampling period.
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Abstract
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 generation condition of the driving pulse to drive the stepping motor is set at the sampling periods. Thereby, the stepping motor can be driven while the most suitable driving condition is determined at the predetermined sampling periods. That is, since the driving condition of the stepping motor can be changed at the sampling periods, even when the stepping motor driven by the driving pulse is the driving source, appropriate servo control can be realized.
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10 Claims
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1. A driving mechanism, comprising:
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a stepping motor driven by a predetermined driving pulse; and a driving pulse generation controller that controls a generation condition of the driving pulse, wherein a predetermined sampling period is set in the driving pulse generation controller, and the driving pulse generation controller resets the driving pulse generation condition at each of a plurality of the sampling periods and performs a calculation to determine the driving pulse generation condition in a sampling interval up to the next sampling period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An image capturing apparatus, comprising:
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an image capturing device for performing image capturing of the subject; a shake compensating device having a predetermined driving mechanism and performing mechanical shake compensation in the image capturing by the image capturing device; and a control target position calculator that calculates a driving target position by the shake compensating device based on a shake amount detected by a predetermined shake detecting device, wherein the driving mechanism of the shake compensating device has a stepping motor driven by a predetermined driving pulse and a driving pulse generation controller that controls a generation condition of the driving pulse, wherein a predetermined sampling period is set in the driving pulse generation controller, and the driving pulse generation controller resets the driving pulse generation condition at each of a plurality of the sampling periods and performs a calculation to determine the driving pulse generation condition in a sampling interval up to the next sampling period. - View Dependent Claims (10)
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Specification