Optocouplers
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Build a Simple Optocoupler Tester Circuit for Fault Detection Optocouplers frequently fail without a sound in labs or during repairs. The package appears to be undamaged, but there may be no output from the LED source or the photosensitive output stage. Testing for failure with a multimeter is only partially effective, whereas a dedicated optocoupler testing circuit provides clear results in just seconds. For related tutorials… |
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Introduction to Optocouplers Have you ever heard the word isolation, especially in electronics? As you might guess, isolation is a key factor when it comes to optocouplers. Isolation is sometimes mandatory and sometimes an extra feature in circuits. Optocouplers are used in many electronic devices, from mobile electronics to household electronics. So, in this… |
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The Roles of Digital Isolators and Optocouplers in Circuit Design Once an electrical design engineer moves beyond initial conceptual sketches and delves into the core of the circuit design, incorporating digital isolators and optocouplers quickly becomes integral to the beta design phase of the project. Digital isolators and optocouplers serve similar purposes in electronics. Both devices… |
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RV1S92xxA & RV1S22xxA – Smallest 8.2mm Photocouplers for Industrial Automation and Solar Inverters Renesas Electronics introduced 5 new 8.2mm creepage photocouplers namely RV1S9260A, RV1S9213A, RV1S2281A, RV1S2211A, and RV1S2285A which are claimed to be the world’s smallest isolation devices for industrial automation equipment and solar inverters with a package width of only 2.5mm. The RV1S92xxA and RV1S22xxA photocouplers can reduce the PCB mount area by 35%… |
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New isolated smart switches aims better reliability and performance than optocoupler-based isolation Silicon Labs has introduced a new range of compact isolated smart switches. These switches are designed to drive heavy loads, even in the harsh industrial environments. The new Si834x isolated switches are capable of driving resistive and inductive loads such as solenoids, relays and lamps used in industrial control systems. This also includes programmable logic… |
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15 Mbps Photocouplers for Harsh Industrial Applications Renesas Electronics Corporation released three new 15 Mbps photocouplers designed to withstand the harsh operating environments of industrial and factory automation equipment. The photocouplers will fulfil the need of smaller ICs with lower power consumption in higher voltage and compact systems. The RV1S9x60A photocoupler family comes in best-in-class low threshold input… |
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Optocouplers in Space-Saving DIP-4 and SMD-4 Packages Offer 800 V Off-State Voltage for High Robustness and Noise Isolation Vishay Intertechnology has added two new series of optocouplers VOT8024A and VOT8121A with phototriac output in space-saving compact DIP-4 and SMD-4 packages. The series features a high off‑state voltage of 800 V and dV/dt of 1000 V/μs, delivering high robustness and noise isolation for home appliances and industrial equipment. The Optocouplers isolate low voltage… |
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New Optocouplers in DIP-6 and SMD-6 Packages Offer 800 V Off-State Voltage for High Robustness and Noise Isolation Vishay Intertechnology introduced two new series of optocouplers with phototriac output in compact DIP-6 and SMD-6 packages featuring high isolation distance on output. Offering high off-state voltage of 800 V and dV/dt of 1000 V/μs, Vishay Semiconductors’ VOT8025A and VOT8125A series deliver high robustness and noise isolation for home… |
