HCPL-4701-020E

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The HCPL-4701-020E is an opto-isolator from the company Avago Technologies. It is a single-channel, transistor, photovoltaic output opto-isolator. It is a widely used component for providing galvanic isolation between circuits in many different applications, such as power management, signal isolation, and EMI emission reduction.

Application Field

The HCPL-4701-020E is an opto-isolator used in many different applications, including industrial, medical, automotive, consumer, and entertainment applications. It is used in systems such as power supply systems, DC-DC converters, power logic circuits, motor control systems, waveform protection systems, and pulse-conditioning systems. For example, in the medical field, it is used in medical monitoring system, hospital beds, and patient beds. It is also often used in motor control circuits, waveform protection circuits, and intelligent lighting systems.

Working Principle

The HCPL-4701-020E isolates one electrical circuit (the input) from another electrical circuit (the output) by using a light-based technique. This isolator consists of an input and output line, both of which are connected to an opto-isolator chip. An LED light source is located inside the opto-isolator and is connected to the input line. The LED emits light in response to electrical signals on the input line. This light is detected by a phototransistor in the opto-isolator and its output line is activated in response. The increased current on the output line turns it into an open switching element that provides electrical isolation between the input and output lines.

Conclusion

The HCPL-4701-020E is an opto-isolator from the company Avago Technologies, which is used to provide galvanic isolation between circuits in many different applications. It is a single-channel, transistor, photovoltaic output device, which is widely used in industrial, medical, automotive, consumer, and entertainment applications. The HCPL-4701-020E isolates one electrical circuit (the input) from another electrical circuit (the output) by using a light-based technique, which involves activating an LED light source connected to the input line, which is detected by a phototransistor and turning it into an open switching element that provides electrical isolation between the input and output lines.

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