Tag «Voltage Detection»

Single Cell Battery Meter Amplifier

A meter amplifier can be designed using LM10 integrated circuit (IC). The accuracy of full-scale sensitivity is good for over 15°C to 155°C at 10mV and 100nA.  Here is the schematic diagram of the circuit: R5 is used to correct the offset voltage error, while R4 is  used to balance the bias current. The zero …

2N2497 Differential FET Voltmeter

Below is two single ended circuits which connected back to back give differential input. This circuit is not only has differential input feature, but also high impedance, much higher compared with the analog ammeter without this circuit. Here is the schematic diagram of the circuit: [Circuit’s schematic diagram source: seekic.com]