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Idiomas disponibles
A p p l i c a t i o n
Application examples
Characteristic curves of a bipolar transistor
1. Connect the device to be tested to the appropriate input.
2. Ensure the BIP/FET switch
3. Select NPN or PNP as appropriate with the NPN/PNP
16
switch
.
4. Select the appropriate range for the maximum current
19
(I
)
, maximum voltage (V
max
23
P
.
max
14
5. Press the DUT switch
now will be visible on the screen.
Components under test can have higher tempera-
tures. Please be careful when handling components
having been connected to the test instrument.
6. The vertical position of the curves I
by the base current I
as parameter and can be adjusted
B
stepwise by turning the rotary knob
is set to MAX or MIN. With MAX selected base current for
the top curve will be set, with MIN selected that for the
bottom curve. The three curves between these two will be
displayed in equal distances. After the HM6042 is powered
on, the base current is set to its minimum value.
7. Using the cursor functions, the calculated parameters are
chosen by pressing the keys
LCD
.
Characteristic curves of a field effect transistor
Testing a FET is similar to bipolar transistor testing with
respect of the following exceptions: The BIP/FET
has to be set to the FET position. The vertical position of the
curves I
= f(V
) is determined by the gate voltage (V
D
DS
parameter and can be adjusted stepwise by turning the rotary
knob
with FUNCTION
selected the gate voltage for the top curve will be set, with
MIN selected that for the bottom curve. The three curves
between these two are displayed in equal distances. Choose
the parameter to be calculated and displayed on the LCD
pressing the keys
until you get the expected result.
Security hint:
Voltages up to 50 V
DC
under test when using the following max. test
voltages: V
= 40 V and V
D
the test equipment needs to be advised of the
STOP
possible danger and the proper precautions to be
taken when working with voltages of this level.
24
Subject to change without notice
e x a m p l e s
15
is set to the BIP position.
21
)
and maximum power
max
. Five curves (see Figure 1 or 2)
= f(V
) is determined
C
CE
while FUNCTION
and displayed on the
15
switch
set to MAX or MIN. With MAX
can be present at the device
= –10 V. Anyone using
G
)
G
by
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