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How to modify a low voltage DC voltmeter to low...

How to modify a low voltage DC voltmeter to low voltage ac voltmeter

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+1 vote

asked Jan 13 in Linear Integrated Circuits by Julian (38.2k points)

How to modify a low voltage DC voltmeter to low voltage ac voltmeter

(a) Add a full wave rectifier in the feedback loop

(b) Add a half wave rectifier in the feedback loop

(c) Add a square wave rectifier in the feedback loop

(d) Add a sine wave rectifier in the feedback loop

I got this question by my school principal while I was bunking the class.

My enquiry is from Voltage to Current Converter with Floating and Grounded Load topic in section Operational Amplifier Applications of Linear Integrated Circuits

linear integrated circuits
operational amplifier applications
voltage to current converter with floating and grounded load

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1 Answer

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answered Mar 15 by Chris (39.8k points)

The correct option is (a) Add a full wave rectifier in the feedback loop

Let me simplify it: A combination of an ammeter and a full wave rectifier can be employed in the feedback loop to form an ac voltmeter.

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