轨迹球原理

Magnetic_JogBall_Design guide20080306Magnetic_JogBall_Design guide.doc March 5, 2008

Magnetic-JOG BALL Design Guide

Panasonic
Panasonic Electronic Devices Tsuyama 3rd Engineering Group Approval; Prepare; H.Watanabe . T.Kodani .

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Magnetic_JogBall_Design guide.doc

1:HARDWARE
[1-1:BLOCK DIAGRAM] 1-1-1:Circuit which is using hole elements

Vcc

Power control

P6 H1 H1 R1 U1 H2 R2 U1 H2 R5 P1 R6 Micro computer P2 R7 U1 H4 H4 R4 U1 Z sw
Change of the magnetism with rotation of a ball is detected and is operated. The output of the Hall element in the rotation direction (direction to which the ball is pushed) of a ball changes.（Example: If a ball is rotated in the direction of the upper right in the above figure, the Hall elements output of both H1 and H3 will change.） Resistors (R1-R8) are for hysteresis function. Each Hole