LOAD
The amplifier is intended to drive resistive and/or small capacitive loads. The maximum
capacitive load depends on the slew rate of the amplifier. The slew rate is normally set at
the factory to 400
V/µs which is appropriate for a small load (for example 5 k
Ω
in series
with 100 pF). Due to the output current limit (150
mA) the slew rate at higher load of for
example 300
pF drops to ca 300
V/µs and for 400 pF drops to 250 V/µs. This load
includes the capacitance of the connection cable (ca 100
pF/m for a standard coaxial
cable). Increasing the capacitive load may cause an overshoot to appear. If a larger
capacitive load is required, and the overshoot is not acceptable, then the slew should be
reduced accordingly. Such an adjustment may be performed by qualified personnel and
the factory should be contacted for advice (preferably by email
cabinet exist hazardous voltage levels and the amplifier circuit is sensitive to static
discharge.
FLC Electronics AB recommends to monitor the output signal of the amplifier with an
oscilloscope. It is then important to use a low capacitive probe with a division factor of at
least 1/10.
Overloading the output may cause an overshoot which might be
dangerous for connected devices.
The amplifier output is equipped with fast-recovery diodes for protection against high
energy flyback and can be used to drive small (mH) inductances in series with resistance.
The amplifier cannot be used to drive a purely inductive load.
The continuous output current limit is 150
mA and the output power limit is 30
W. The
output is equipped with a current limiting circuit that withstands accidental short-circuits.
Prolonged short-circuiting may result in overheating the amplifier.
The amplifier may be overheated when the output is shor t-circuited for a
long time.
ELECTRONICS AB
WWW.FLCE.SE