NF corporation has expanded the HSA series of bipolar amplifiers with three new models. The amplifiers have a bandwidth from DC to 1MHz and have a high switching speed of 475V per microsecond. With an external signal generator (max 10V input) the waveforms can be amplified up to 150Vp-p at a maximum current of 3Ap-p, 6Ap-p and 12Ap-p. All this with a very low output impedance that is also adjustable.
Due to the bipolar design of the HSA series, the amplifier is operational in all 4 quadrants. This makes it possible to supply and absorb current at both positive and negative voltages. The HSA is therefore extremely suitable for controlling inductive and capacitive loads.
MODELS HSA BIPOLAR AMPLIFIERS
HSA42011 DC-1MHz, 0-150Vp-p, 0-3Ap-p, DC offset,
HSA42012 DC-1MHz, 0-150Vp-p, 0-6Ap-p, DC offset,
HSA42014 DC-1MHz, 0-150Vp-p, 0-12Ap-p, DC offset,
FUNCTIONALITY
The amplification factor of the HSA can be adjusted continuously and accurately using a precision potentiometer. Fixed amplification factors are also available, namely 1x, 10x, 20x and 50x. If higher voltages are required, 2 amplifiers can be connected using a balanced arrangement. With the DC bias output you can easily add an offset to the amplified waveform.
APPLICATIONS
The four-quadrant design of the HSA amplifier makes the unit suitable for applications that control capacitances, coils, transformers and, for example, batteries. Consider, for example, multilayer ceramic capacitors for applications in the automotive industry. The capacity is higher and the housing smaller. In combination with a frequency analyzer the HSA amplifier is ideal for characterizing these capacitors.
This amplifier can also be used perfectly for measuring resonance characteristics of piezoelectric elements or evaluating the hysteresis curve of magnetic materials.
The NF corporation HSA series is widely applicable for controlling the most challenging applications.
For detailed specifications of this product, please refer to the data sheet.
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