A PV bypass diode is selected by five numbers—forward current, forward drop, leakage at temperature, surge capability, and thermal resistance—and the selection only works when those numbers are checked inside the real junction-box heat-flow route. The part that looks best at 25 °C often fails the hot, shaded-hour test. This guide walks through the selection … Read more
An automotive lamp module seals its electronics in a small, hot housing, and the rectifier—often the smallest component—carries the efficiency and thermal story. This guide covers the driver architectures, the 60/100 V classes, the compact packages, the AWSS family, and the sealed-housing validation. LED Driver Architectures and Where the Rectifier Sits Automotive LED drivers come … Read more
An ECU power tree runs from the battery’s 12 V through protection, buck converters, and down to 3.3 V logic rails, and every stage has a rectifier or protection diode with a different job. This guide walks the tree, sizes a 10 A rail, and covers the under-hood thermal and EMC reality. ECU Power Rails: … Read more
Electric power steering runs a motor whose load swings from a light cruise current to a full stall current in seconds, and the freewheeling diode must survive both. This guide covers the load profile, the diode’s role, the AMBRB3045CT fit, and the automotive reliability validation. EPS Load Profile: Peak vs Continuous Torque The steering motor … Read more
An on-board charger contains two rectifier problems with two different mindsets: the PFC stage blocks a high-voltage bus at high frequency, and the isolated DC-DC secondary carries high current at low voltage with conduction loss as the enemy. This guide allocates the 6.6 kW loss budget across the two stages and maps each to its … Read more
Inside one switch-mode power supply, rectifiers do three different jobs with three different constraints: the input bridge survives surge and voltage, the PFC stage manages frequency and recovery, and the output stage wins on forward drop. Selecting for the role—not for a generic “rectifier”—is the whole method. This guide walks the three roles and sizes … Read more
In an AC-DC adapter, the output rectifier’s forward drop is the last big lever left for efficiency, and every 0.1 V at the output current is a watt of heat in a sealed case. This guide follows the loss through a 65 W USB-PD output stage, compares the Schottky with synchronous rectification, and lands on … Read more
Server power supplies run at high power density, and the output rectifier is where the thermal design is won: 40 A of load current turns every 0.1 V of forward drop into 4 W of heat inside a rack full of sealed boxes. This guide walks the thermal-first method, the package decision, the loss math, … Read more
In a PV inverter, rectifiers appear in three places—the boost diode of the MPPT stage, freewheeling diodes around switches, and protection paths—and each is chosen by voltage, frequency, and the outdoor thermal environment. This guide maps the roles, compares SiC and fast recovery in the boost, and sizes a 10 kW example. Where Rectifiers Appear … Read more
IFSM—peak forward surge current—is a single-pulse rating: the part survives one large current event at a defined pulse width and starting temperature, and every repeated event ages it. This guide explains what the number actually means, how it is tested, and how to check it against the real events your circuit produces. The One-Number Trap: … Read more