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Method for zero setting of incremental encoder IC

An incremental encoder and encoder technology, applied in the field of incremental encoder IC zero adjustment, can solve the problems of low system integration, complicated wiring, and high debugging costs

Active Publication Date: 2020-10-23
赛卓微电子(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the system integration is low, multiple chips are required to connect, the wiring is complicated, and the debugging cost is high

Method used

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  • Method for zero setting of incremental encoder IC
  • Method for zero setting of incremental encoder IC
  • Method for zero setting of incremental encoder IC

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] refer to Figure 1-Figure 4 As shown, the present invention provides a method for zeroing an incremental encoder IC, including the following input and output and circuit modules:

[0079] Input control module: used to receive the zero-adjustment enable signal sent by the zero-adjustment PCB board. It should be pointed out that the input control terminal is optional in the actual solution.

[0080] One-key zeroing multiplexing input control module: used to receive the zeroing control level sent by the zeroing PCB board and convert it into zeroing enable.

[0081] One-key zero-adjustment mode selection module: used to combine the two zero-adjustment enables into one zero-adjustment enablement, and enter the zero-adjustment working mode.

[0082] Encoder zero position operation logic module: In the zero adjustment mode, compare the zero position setting information with the actual Z phase zero position, perform logic operations, and write the zero position adjustment info...

Embodiment 2

[0108] Same as Embodiment 1, the difference is that only the one-key zero adjustment input control module is used as the input terminal, and the enable level is input.

Embodiment 3

[0110] Same as Embodiment 1, the difference is that any one IO port is selected as the input terminal through the one-key zero-adjustment multiplexed input control module, and the level of the input terminal is higher than the power supply voltage of the encoder IC or controlled by one-key zero-set multiplexed input The module selects any 2 IO ports as combined input terminals, and the level of the input terminals is higher than the power supply voltage of the encoder IC or through the one-key zero-adjustment multiplexing input control module selects any 3 IO ports as the combined input terminals, and the level of the input terminals It is higher than the power supply voltage of the encoder IC, specifically: select the multiplexed incremental output signals A, B, and Z as any one or multiple combinations of the one-key zero-adjustment control input enable.

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PUM

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Abstract

The invention provides a method for zero setting of an incremental encoder IC, is used for solving problems of complex zero setting program and low efficiency in the prior art, and is composed of an input control module, a one-key zero setting multiplexing input control module, a one-key zero setting mode selection module, an encoder zero operation logic module, a programmable logic module, an incremental signal generation module, an output driving module and a zero setting PCB. Through application of the method, as long as a user installs the motor correctly, the interior of the encoder enters a one-key zero setting mode through an external zero setting control panel, an enabled one-key zero setting control input end or a multiplexed incremental output signal, zero setting information iscompared with an actual Z-phase zero position, logic operation is carried out, and the zero adjustment information is written into a programmable logic device, so automatic zero setting is realized.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a method for zeroing an incremental encoder IC. Background technique [0002] Incremental encoder converts the displacement change into a periodic level signal, and then converts this electrical signal into counting pulses, and uses the number of pulses to represent the magnitude of the displacement. Incremental encoders usually have three signal outputs (there are six differential signals): A, B, and Z. The signals of A and B channels are generally orthogonal (that is, 90° mutual difference) pulse signals. The signals of A and B phases differ by 90 degrees, and the forward rotation and reverse rotation of the encoder can be judged by judging whether A phase is in front or B phase, and Z phase represents the zero reference position. [0003] At present, a widely used motor system requires an accurate initial position, that is, the mechanical reference zero position, ...

Claims

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Application Information

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IPC IPC(8): G01D3/06G05B19/05
CPCG01D3/06G05B19/054
Inventor 汪坚雄胡枭张超
Owner 赛卓微电子(深圳)有限公司
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