Renesas H8S/2635 Handbuch PDF herunterladen (Seite 9)

2. Terminology and abbreviations.

Below are presented the most important terms and abbreviations which are later used in this

document.

0x  It denotes that we are using hexadecimal number. For example: 0xff means 255 in decimal

system, 0x1f means 31 (in decimal system).

AC  Alternating Current

Commutation  the action of applying currents or voltages to the proper electrical motor phases so

as to produce optimum motor torque at a motor's shaft

Commutation point  It is a point where two phases produce equal levels of torque.

Compare match  A comparison between some two registers, which gives the result as true if two

registers have the same value or false if they have different values.

DC  Direct Current

IRC  (Incremental Radial Counter) Sensor which makes measurement of relative position of the

rotor. The actual position of the motor can be calculated by the sum of pulses received form IRC.

Index  A value which describes the actual position in some array. In this document the 

points to the actual position in the phase table(s).

Index mark  Starting point or point used to make synchronization of the rotating motor.

Phase table  An array which contains values describing sinusoid or other function. It is used for

proper calculations of a voltage which should be sending to the motor to cause its rotation.

PXMC – (Pikron eXtensible Motion Control) Library for control different types of motors.

PXMC structure  A data structure which contains all necessary parameters needed for rotation of

the motor.

PWM  Pulse Width Modulation

http://en.wikipedia.org

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 91 92

Keine Kommentare

Renesas H8S/2635 Handbuch Seite 9