analog mv switch for digital meters


Posted on Feb 7, 2014

This circuit uses a 4052 as a DC Analog Multiplexer, the inputs to this Mux must be from Low Impedance Output OpAmps. The Resistors Shown are not needed once the Signal Conditioning Opamps are connected. The Restors can be 100K to keep the inputs from floating, that will not load an opamp. The resistors can attenuate signals if sensors are directl


analog mv switch for digital meters
Click here to download the full size of the above Circuit.

y connected. The signals from sensors have to be amplified and corrected or scaled before reaching this Switched DVM. For Current a Shunt is the Sensor and for AC current a CT or current transformer is the sensor. Voltmeter has Attenuator as the `Sensor`.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

LED Audio VU Meter Circuit
Direct PC access through the mounts DB9 connector
Simple Video Amplifier
simple microphone preamplifier
7-Segment Displays



Top