optocoupler

optocoupler

[¦äp·tō′kəp·lər]
(electronics)
References in periodicals archive ?
The 3WLS03-15B12R2S (DIMENSIONS:35*18*11 mm) is an ideal AC DC Converter to provide a DC bus which can then power an optocoupler drive via a B1212S-2WR2 2W isolated high density DC/DC converter.
[UKPRwire, Wed Jul 24 2019] Global Optocouplers Market: Introduction An optocoupler is an electronic device used for the transmission of electric signals using light between two circuits.
This somewhat recent expansion means Harvatek now manufactures products under Inolux (Display LED, Through Hole LED and non-standard solutions products) in the US and Harvetek (SMD LED products) and CT Micro (Infrared and optocoupler products) overseas.
The InnoSwitch3-MX is the latest addition to Power Integrations' flyback switcher IC families, combining the primary FET, the primary-side controller, a secondary-side controller for synchronous rectification, and FluxLink high-speed communications technology, which eliminates the need for an optocoupler. The InnoSwitch3-MX receives control information from the InnoMux IC, which independently measures the load requirements of each output and directs the InnoSwitch3-MX switcher to deliver the right amount of power to each of the outputs to maintain accurate regulation of current or voltage; this eliminates the load and cross-regulation challenges seen with conventional multi-output power supplies, making post- regulators unnecessary.
Traditionally, optocoupler technology has been used to provide single-package signal isolation between two circuits in a system.
The U1 optocoupler is used to protect the input circuits of microcontrollers and matching signals level.
Instead of using a rectifier, an alternative design is the use of an optocoupler that operates as a voltage-controlled variable resistor.
The PWM generated signal from the dSPACE is connected to the MOSFET of the Cuk converter via optocoupler model number PS9505 as shown in Figure 12.
3, PWM signal 0-5 V comes to input of an optocoupler. The optocoupler translates PWM signal from 0-5 V to 0-(12+[U.sub.be]) V, then voltage is followed by the operational amplifier.
The main methods of electromagnetic isolation of external electrical circuits of considered equipment concerns [3, 15, 19]: application of decoupling inductances are often implemented at the expense of the electrical parameters of <<suitable>> to the device protected power supply wires; the use of an isolation transformer, installed in the gaps of electrical circuits and grounding circuits; installation in the gap the pair of phase and neutral conductors of the longitudinal choke; use bifilar choke with ferrite rings; application in the chain breaks optoelectronic circuits (e.g., optocouplers, optocoupler diode, transistor optocouplers, optical fiber communication lines, etc.).
Besides the logic control modules and output line, an optocoupler module, a push-pull circuit driving the pulse generator circuit and an isolation module is included.
Using optocoupler (HCPL817), PWM signal is interfaced with the DC-DC buck converter.

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