HCC1000

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The HCC1000 device is an optically isolated transistor with a photovoltaic output, also known as an optoisolator. The HCC1000 optoisolator provides dc level shift and isolation of devices from grounds and ac noise. Optical isolation also prevents transmission of electric noise from one area of a circuit to another. This makes the HCC1000 suitable for applications where a high level of noise protection is desirable.

The photo-initiated action of the HCC1000 is based on photo-transistor technology. The optoisolator’s photodiode responds to a light from a bulb or LED that is mounted on the opposite side of the device. When under illumination, a reverse biased photodiode generates an electrical current proportional to the intensity of the light. This current then activates a power transistor in the photo-transistor circuitry which switches on the transistor’s collector-emitter path. The collector-emitter current is measured directly at the output, thus providing a high voltage gain. This current is then fed to an eddy-current load, which produces a very low voltage and provides forced current to match the load and source impedances of the circuit on the output side.

The two primary features of the optoisolator that make it suitable for many applications are its photo-transistor output and its integrated isolation feature. As mentioned previously, the optoisolator’s photodiode produces a current proportional to the light intensity. This current is then fed to the power transistor in the photo-transistor circuitry, which in turn switches on the collector-emitter path. The collector-emitter current can then be measured directly at the output and used to drive a variety of circuits. The isolation provided by the optoisolator prevents high voltage spikes and power surges from affecting the output circuit.

Another feature of the optoisolator is its ability to provide voltage level shifting. The optoisolator’s current output can be altered or shifted to different voltages depending on the specific requirements of the application. This can be done by changing the device’s operating voltage, or by changing the resistor ratio. This feature is especially useful for controlling the power levels of some devices that require a specific voltage level for operation.

HCC 1000 is suitable for several applications such as AC/DC contactors, small AC or DC current relays, solid-state relays and switch mode power supplies. The device can be used to control LED displays, low-power fluorescent lamps, and photocoupled switch boards. Its high level of isolation and low power requirements make it an ideal choice for medical applications and for controlling machine tools. The HCC1000 is also commonly used in alarm systems, access control systems and protection circuits.

In conclusion, the HCC1000, as an optoisolator with photovoltaic output, is designed to provide dc-level shift and isolation for applications requiring a high level of noise protection, power regulation and voltage level shifting. With its photo-transistor output and integrated isolation feature, the optoisolator is suitable for a wide range of purposes, including industrial, medical and consumer devices.

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