Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 18, Problem 8PP
In an R-L parallel circuit,
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Please answer the questions on the figure!
One student is working on the following converter. The gating signals sent to S1 and S4 are shown
below (S1 and S3 are operating in a complimentary way, and S2 and S4 are operating in a
complimentary way). Va= 100V, R= 1002, and switches are assumed to be ideal that conduction
voltage is zero.
P
2V Si
S2
L
A
iL
R V.
B
Va
S3
S4
N
Vs1
Ton=0.07ms Tof=0.03ms
15 V
Ton
Tof
Vsa A
15 V
1. Express Vo using Va and the duty cycle (D, the duty cycle of S1) under above gating signals
assuming a continuous-mode operation.
2. Determine the inductance (L) enabling the converter to operate under the boundary point
(the boundary between continuous and discontinuous modes) using the given switching
scheme.
3. Determine the output voltage ripple AV, under the condition of 1-2), that is under a
boundary operation point.
4. To reduce the output voltage ripple (AV.) to 21V, a capacitor was connected in parallel
with the load resistor R. Determine the capacitance C.
+
Find the total resistance RT in the circuits below (image)
Chapter 18 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 18 - 1. When an inductor and a resistor are connected...Ch. 18 - 2. An inductor and resistor are connected in...Ch. 18 - 3. What is the impedance of the circuit in...Ch. 18 - 4. What is the power factor of the circuit in...Ch. 18 - How many degrees out of phase are the current and...Ch. 18 - 6. In the circuit shown in Figure 18-1, the...Ch. 18 - 7. A resistor and an inductor are connected in...Ch. 18 - The R-L parallel circuit shown in Figure 18-1 has...Ch. 18 - The R-L parallel circuit shown in Figure 18-1 has...Ch. 18 - How many degrees out of phase are the total...
Ch. 18 - Incandescent lighting of 500 W is connected in...Ch. 18 - You are working on a residential heat pump. The...Ch. 18 - Assume that the circuit shown in Figure 18-1 is...Ch. 18 - Assume that the current flow through the resistor,...Ch. 18 - Assume that the circuit in Figure 18-1 has an...Ch. 18 - Assume that the circuit in Figure 18-1 has a power...Ch. 18 - In an R-L parallel circuit, R=240 and XL=360. Find...Ch. 18 - In an R-L parallel circuit, IT=0.25 amps, IR=0.125...Ch. 18 - In an R-L parallel circuit, ET=120 volts,...Ch. 18 - In an R-L parallel circuit, ET=48 volts, IT=0.25...Ch. 18 - In an R-L parallel circuit, ET=240 volts, R=560 R...Ch. 18 - In an R-L parallel circuit, ET=240 volts, R=560,...Ch. 18 - In an R-L parallel circuit, ET=208 volts, R=2.4k,...Ch. 18 - In an R-L parallel circuit, ET=480 volts, R=16,...Ch. 18 - In an R-L parallel circuit, IT=1.25 amps, R=1.2k,...Ch. 18 - In an R-L parallel circuit, true power =4.6 watts...Ch. 18 - An R-L parallel circuit is connected to 240 volts...Ch. 18 - An R-L parallel circuit has an applied voltage of...
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