ELD213

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Optoisolators are an invaluable tool in electrical engineering and are used in many different areas. The ELD213 application field and working principle are explored in detail below.

The ELD213 is an optoisolator designed for many different applications. It is a photocoupled transistor-type optoisolator that works by transferring an electrical signal across a barrier, typically a semiconductor material or insulation material like glass, plastic, or ceramic. The device uses an infrared LED (light-emitting diode) to optically couple a photo-sensitive transistor from the input side to the output side. The photo-sensitive transistor on the output side is triggered to turn on when the light-emitting diode on the input side is activated.

The ELD213 optoisolator is typically used in high operating voltage applications, such as up to 15kV applications, and is designed to yield a current transfer ratio (CTR) of 500-1000. The device is also highly flexible, with output currents up to 50mA and collector to emitter voltages up to 200V. It is also highly tolerant to electrical noise, with large galvanic isolation from input to output of up to 3500VAC peak, making it great for use in applications such as power supplies, power controllers, medical equipment, and telecommunications.

The working principle of the optoisolator is simple and easy to understand. The light-emitting diode emits light, which is transferred to the photo-sensitive transistor on the output side. This photo-sensitive transistor is then activated and current is allowed to flow from the collector to the emitter. The output current generated will depend on the light intensity of the LED. The greater the LED intensity, the greater the output current. The LED is usually activated with a voltage directly connected across the anode and cathode. The voltage applied will also determine the amount of current flowing through the LED, and thus the intensity of the light output.

The ELD213 optoisolators are also designed to be very reliable and rugged, as well as high-speed. The device has a maximum frequency response of 10kHz, and utilizes a “built-in regulating device” to reduce off-state leakage current. This means that the optoisolator will operate reliably at the necessary speeds and with minimal power consumption.

In conclusion, the ELD213 optoisolator from GeneSiC is an excellent device for applications that require high-voltage isolation, such as power supplies, power controllers, medical equipment, and telecommunications. The device has a high current transfer ratio, and is highly reliable and rugged, with a maximum frequency response of 10kHz. Furthermore, it utilizes a built-in regulating device to reduce off-state leakage current. Any application that requires the isolation of high-voltages should consider the ELD213 photocoupled transistor-type optoisolator as a solution.

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