Sharp EL-5230 User Manual download pdf (Page 101)

Delta-Y impedance circuit transformation

Transformation of a Y impedance circuit to an equivalent Delta impedance

circuit and vice versa.

1. Press b 2 1 0 to open a window for creating a NEW

program.

2. Type DELTAY for the title then press e.

•A NEW program called ‘DELTAY’ will be created.

3. Enter the program as follows.

Program code Key operations

Print”(1)DELTA TO Y i 1 ( 1 ) @ a

DELTA s TO s Y ; e

Print”(2)Y TO DELTA i 1 ( 2 ) @ a Y

s TO s DELTA ; e

Input X i 2 ; X e

If X=1 Goto DTOY i 8 ; X ; = 1 ;

s i 9 @ a DTOY

; e

If X=2 Goto YTOD i 8 ; X ; = 2 ;

s i 9 @ a YTOD

; e

Label DTOY i 6 @ a DTOY ;

The Delta-Y transformation is defined by the following formula:

= ———

where Z = Z

+ Z

= —

where R = R

+ R

Chapter 8: Application Examples

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Sharp EL-5230 User Manual Page 101