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Available for capacitive and inductive loads
If a load containing a capacitor or coil is driven with
alternating current, the current generally flows back
from the load. In this case, an ordinary power supply or
amplifier may not be able to drive the load. BA4825
amplifier also operates (i.e., outputs the current) with
a capacitive or inductive load such as a piezoelectric
element or solenoid. This is because it operates also
with a sink, where the voltage and current directions
are reverse.
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Broadband, high speed, and high-voltage
BA4825 drives current from a large piezoelectric element
or display device, because the band is DC to 2 MHz and
the maximum high-voltage output is 300 Vp-p.
BA4825 can amplify DC, they can be input waveforms
containing an offset or those that are asymmetric in the
positive area and negative area.
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Low output impedance
BA4825 keeps a low output impedance throughout the
overall range (0.5Ω + 1.5 MHz or less typ.). With
the voltage drop (raised due to load connection)
suppressed to the minimum, the power of the equipment is
maximized.
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Multiple functions
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Range shifting function for changing output range.
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DC bias addition function for adding direct current (bias)
to the output.
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DC offset adjustment function for setting DC offset in
output to 0 (zero).
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Equipped with output voltage monitor terminal (BNC, monitor
ratio 1/100) and monitor meter (output voltage/current
switching display).
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Output on/off can be switched from the panel or externally
controlled.
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Output polarity switching (INVT) for setting the device to
either an in-phase or reversed-phase amplifier. Use of
reversed-phase output enables BTL*1
connection, which doubles the output voltage and
power, using two BA Series amplifiers.
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Two systems, A and B, for input. Switching and addition of
the input by pressing a single key.
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Input impedance switcheable between 50Ω and
10kΩ.
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The settings at power-on can be set using the dip switches
on the rear panel.
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The power input is available for worldwide applications
(AC100 to 230 V).
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*1 : Balanced Transformerless
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