# Basic Electrotechnology (Butterworths Basic Series) by R. A. Ashen

By R. A. Ashen

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Additional info for Basic Electrotechnology (Butterworths Basic Series)

Example text

Value of a periodic waveform has been explained. s. and half-cycle average values of a waveform specified at an even number of equal intervals over a half cycle. /average. The integrals required should be evaluated using Simpson's Rule. g. c. circuit analysis 290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 510 520 530 540 550 560 570 580 590 600 610 620 630 640 645 650 660 670 680 INPUT V A = 0 R = 0 A = A + V R = R + v -2 FOR T = 1 TO 1-1 PRINT T A B ( 5 ) ; T*H; T A B ( 2 0 ) ; INPUT V IF <; - 1 ) •-• (T+2) < 0 THEN A « A + 4 * V IF 'C-D-- > 0 THEN A = A H- 2*V (T+2) < 0 THEN R * R 4 4 * V IF < IF <(-1 )••••• (T+2) > 0 THEN R = R +• 2*V" NEXT T PRINT 180"; TAB(20); INPUT V A ~ A + v R = R + v -2 PRINT " — PR I NT PRINT A = A/(3*I) R = SQR(R/(3*1)) : F = R/A PRINT- "Half-cycle average == "; A PRINT R.

C. c. c. circuit, and further thought leads to the fuller table of corresponding quantities below. c. c. s. value (modulus of complex number) A general method of circuit analysis, based on Kirchhoff's voltage law, and applicable to either of the above cases, may now be developed. 3, in which three closed paths may be readily identified. c. c. problem could be readily formulated. The basis of the method is the assignment of a loop current (sometimes called a Maxwell circulating current) to each of the closed paths.

86603 ?. • 5 ?. S. 707109466 1 . g. g. ) Ang interval (in deg) at which data to be Enter magnitudes in following at appropriate intervals when entered?? c. circuit analysis Angle (deg) Magnitude 70 ?. 2 ?. 6 7. 8 7. 4 7. 2 7. S. 15470054 (Y/N) 7N STOP at line 620 Program notes (1) The reader unfamiliar with Simpson's rule for evaluating integrals is referred to the appropriate companion volume (Mason, 1983). To apply the method directly, the half cycle of the periodic waveform must have values specified at an even number of equal intervals.