EL814-V

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optoisolators - transistor, photovoltaic output

EL814-V optoisolators are a type of electrical device that use optical linkages to provide electrically isolated inputs and outputs. They offer protection from current or voltage surges, electrostatic voltages, or undesirable electrical noise. Optoisolators can be used in a variety of applications, such as data transmission and protection, sensing, motor control, and medical device power transmission. As with most optoisolators, the EL814-V optoisolator consists of an LED, optocoupler, and a photovoltaic output.

EL814-V Application Field

The EL814-V optoisolator is primarily used in motor control applications. This device can interface between digital logic signals, such as pulse width modulation or logic-level input, and electrical signals from motors. It has a wide range of applications. It is especially useful in variable speed drives, stress relays, current transformers, actuated valves, motion controllers, and variable frequency drives. It is also used in control systems that require extended DC current ranges from low to very high.

EL814-V Working Principle

The EL814-V optoisolator works through a circuit consisting of two components, namely an LED (light emitting diode) and a photovoltaic output. The LED is placed on one side of the optoisolator while the photovoltaic output is placed on the other side. When the LED is turned on, it emits light and is received by the photovoltaic output. This causes an electrical voltage to be generated at the output, which is then used to control the motor or other devices.

The EL814-V optoisolator is designed so that the LED and the photovoltaic output can remain isolated from any external electrical interference. This is achieved through the use of galvanic isolation, which prevents the transmission of electrical charge via a direct contact between two separate metallic parts. This is beneficial for applications that require the use of a motor in environments with a high electromagnetic interference (EMI).

Characteristics and Performance

The EL814-V optoisolator has a maximum power consumption of half an ampere (0.5A) and a maximum voltage of 125V. The device also has a minimum isolation resistance of 100k Ω. It has a 600 W peak off-state current and a 15 mA on-state current. It has a minimum transient on-state voltage drop of 0.75V and a maximum on-state leakage current of 0.2mA. The device works over a wide temperature range from -40 °C to +85 °C.

Conclusion

The EL814-V optoisolator is a reliable and robust device that can be used in a variety of motor control applications. It is designed to provide galvanic isolation as well as high performance and longevity. The device also has a wide temperature range that allows it to perform in extreme environments. It has a power consumption of 0.5A and can maintain a maximum voltage of up to 125V. With its various features, the EL814-V optoisolator is sure to provide a reliable and cost-effective solution for motor control applications.

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