1. For a transformer output of 18 V and a filter capacitor of 250 mF, calculate the minimum input voltage when connected to a load drawing 400 mA. What is the output volage of the IC regulator circuit in Fig.1? The manufacturer's specification sheets of 7800 series is provided in the table below. 120 V rms 000 000000000 V-18 V IN OUT 7808 C= 0.01μF 250 μF GND Vo=? Fig. 1 IC regulator circuit Table 1 Voltage Regulators in the 7800 Series IC Part Output Voltage (V) Minimum V; (V) 7805 +5 7.3 7806 +6 8.3 7808 +8 10.5 7810 +10 12.5 7812 +12 14.6 7815 +15 17.7 7818 +18 21.0 7824 +24 27.1
1. For a transformer output of 18 V and a filter capacitor of 250 mF, calculate the minimum input voltage when connected to a load drawing 400 mA. What is the output volage of the IC regulator circuit in Fig.1? The manufacturer's specification sheets of 7800 series is provided in the table below. 120 V rms 000 000000000 V-18 V IN OUT 7808 C= 0.01μF 250 μF GND Vo=? Fig. 1 IC regulator circuit Table 1 Voltage Regulators in the 7800 Series IC Part Output Voltage (V) Minimum V; (V) 7805 +5 7.3 7806 +6 8.3 7808 +8 10.5 7810 +10 12.5 7812 +12 14.6 7815 +15 17.7 7818 +18 21.0 7824 +24 27.1
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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