Velleman DCA55 - Manual (Page 8)

Atlas DCA User Guide October 2007 – Rev 7
Page 8
Diode Networks
The Atlas DCA will intelligently identify popular types of
three terminal diode networks. For three terminal devices
such as SOT-23 diode networks, the three test clips must all
be connected, any way round. The instrument will identify the type of diode
network and then display information regarding each detected diode in
sequence. The following types of diode networks are automatically recognised
by the Atlas DCA:
Both cathodes connected
together, such as the BAV70
device.
Anodes of each diode are
connected together, the
BAW56W is an example.
Here, each diode is connected
in series. An example is the
BAV99.
Following the component identification,
the details of each diode in the network
will be displayed.
Firstly, the pinout for the diode is
displayed, followed by the electrical
information, forward voltage drop and
the current at which the diode was
tested. The value of the test current
depends on the measured forward
voltage drop of the diode.
Following the display of all the details for the first diode, the details of the
second diode will then be displayed.
Common cathode
diode network
Common anode
diode network
Series
diode network
Pinout for D1...
RED GREEN BLUE
Cath Anod
Forward voltage
D1 Vf=0.64V