Ammeter
is a great addition to any Laboratory Power Supply
as it will measure the current consumption and help
you determine if there are any problems with the circuit
that you are building or testing. This amper meter
is capable of measuring the current consumption up
to 10A with selected 100mA, 10mA and 1mA accuracy,
and consumes only about 25mA of current. The ammeter
is based on single ICL7107 chip and 3.5-digit seven
segment LED display. Due to a relatively small number
of components that the circuit is using it is possible
to fit it on a small 3cm x 7cm printed circuit board.