Technical Articles

California Eastern Laboratories - CEL has published these technical articles:

(Optoelectronics)
From this Article:
Describes features, structures, and basic characteristics of NEC's PS2500 Series optocouplers....
(Relays and Relay Accessories)
From this Article:
Tips and advice for designing with SSRs....
(Optoelectronics)
From this Article:
While designed for measurement parameters like Voltage and Current, PSPICE programs are not comfortable with evaluating or simulating components in photometric units. This application note provides...
(Optoelectronics)
From this Article:
CTR is a key parameter in measuring transistor optocoupler performance. Normally expressed as a percentage, CTR is the ratio of the amount of current applied to the optocoupler's LED to the collector...
(Semiconductors)
From this Article:
This application note provides a reference design for a flexible, high power RS485 interface using NEC's PS9821 digital optocouplers and an LMS1487 transceiver from National Semiconductor....
(Optoelectronics)
From this Article:
Both devices feature large peak output current, fast switching speeds, undervoltage lockout protection and high common mode transient immunity, but the NEC device offers additional benefits. This App...
(Relays and Relay Accessories)
From this Article:
Compares SSRs to Electro-Mechanical and Reed relays and examines the use of SSRs in ATE (Automated Test Equipment)applications....
(Optoelectronics)
From this Article:
This paper addresses various applications where NEC/CEL optocouplers offer galvanic isolation for driving MOSFET / IGBT devices in industrial applications including general-purpose inverters, AC...
(Semiconductors)
From this Article:
Reviews the characteristics and technical requirements of using an NEC high speed optocoupler to gate drive an IGBT or Power MOSFET....