232HC Copley Controls
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The Copley Controls 232HC is a high power amplifier from the CC High Power Amplifiers series, supporting both single and multiple channels. It is air-cooled with a maximum current of 260 Amps, can operate in current or voltage modes, and provides overcurrent protection. The 232HC also supports master/slave operation and parallel operation.
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Product Description:
The 232HC is a high-power amplifier manufactured by Copley Controls for the CC High Power Amplifiers series. In motion platforms, magnetic bearings, and coil-driven process tools, the unit supplies tightly regulated current so that actuation force follows the command profile set by the controller. It is intended for cabinet mounting and integrates into automation cells where reliable, high-current excitation of inductive loads is required.
The amplifier uses forced-air cooling, which allows the heat sink to maintain safe junction temperatures without an external liquid circuit. Continuous output capacity reaches 120 A DC or RMS, providing ample current for static load holding. The output stage tolerates up to 150 V, allowing long cable runs or higher-impedance coils to be driven from a single chassis. Peak output under normal operating conditions is limited to 260 A; this ceiling protects the semiconductor switches while accommodating brief acceleration or clamping transients. Jumper configuration supports current or voltage operation through closed-loop current control or open-loop voltage control. Master-slave drive sharing is supported, and overcurrent protection trips immediately when demand exceeds the permitted level. Multiple amplifier frames can also be connected in parallel when the application requires higher aggregate current.
For short-duration operation, the amplifier supports a 100 µs on and 100 µs off pulse current of 170 A. A 500 µs on and 500 µs off cycle permits a pulse current of 150 A. For sinusoidal excitation, the output reaches 170 A peak, while triangular waveforms can be delivered at up to 208 A peak for accurate tracking across different command profiles. Channels can be wired as single or multiple paths to match the actuator topology, and master-slave synchronization maintains phase alignment when several amplifiers share the load current. Parallel operation extends the available power without derating, while adjustable tuning allows the loop gain to be matched to the inductance and resistance of the connected load.
