About sources, check the correct statement(s). a) A power supply is composed of at least six parts, they are: AC power, transformer, rectifier, filtering capacitor, voltage regulator and load. b) The transformer must be a voltage step-down. c) We have the options of half wave rectifier circuit, full wave rectifier circuit and bridge full wave rectifier circuit d) Regardless of the rectifier circuit used, we need to insert a filtering capacitor e) The filtering capacitor must be placed in series with the load f) We usually use an electrolytic capacitor as a filtering capacitor in power supplies. g) These are characteristics of the filtering capacitor: it opposes variations in electrical voltage, the ability to store charges depends on its capacitance. h) The filter capacitor needs a current limiting resistor connected in series i) Among the techniques used as a voltage regulator we have: The zener diode, LM317, LM78XX and LM 79XX. j) If we are going to build a symmetric source, we will have to use an LM78XX and an LM79XX as voltage regulator, as well as 4 electrolytic capacitors of 0.1 microfaraday. k)None of the above options is correct
About sources, check the correct statement(s).
a) A power supply is composed of at least six parts, they are: AC power, transformer, rectifier, filtering capacitor, voltage regulator and load.
b) The transformer must be a voltage step-down.
c) We have the options of half wave rectifier circuit, full wave rectifier circuit and bridge full wave rectifier circuit
d) Regardless of the rectifier circuit used, we need to insert a filtering capacitor
e) The filtering capacitor must be placed in series with the load
f) We usually use an electrolytic capacitor as a filtering capacitor in power supplies.
g) These are characteristics of the filtering capacitor: it opposes variations in electrical voltage, the ability to store charges depends on its capacitance.
h) The filter capacitor needs a current limiting resistor connected in series
i) Among the techniques used as a voltage regulator we have: The zener diode, LM317, LM78XX and LM 79XX.
j) If we are going to build a symmetric source, we will have to use an LM78XX and an LM79XX as voltage regulator, as well as 4 electrolytic capacitors of 0.1 microfaraday.
k)None of the above options is correct
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