International Rectifier has expanded its family of SmartRectifier ICs with the introduction of the IR1168 for AC-DC power converters for high-end applications.
The 200 V dual smart secondary-side rectifier driver IC is designed to drive two n-channel power MOSFETs used as synchronous rectifiers (SR) in resonant half-bridge topologies. In contrast to traditional current transformer SR methods, the IR1168 accurately determines turn-on and turn-off based on MOSFET drain sensing voltage in close proximity to zero current transition, eliminating the need for additional components and simplifying design.
While synchronous rectification provides significant energy savings compared to diode-based designs, traditional SR methods are complex and require a high component count. Using only two gate resistors and a supply capacitor, the IR1168 delivers a low system temperature and high-power density for high-efficiency and reliability.
The IR1168 supports burst mode operation to deliver efficiency benefits even at light loads. Ruggedness and noise immunity are accomplished using an advanced blanking scheme and double-pulse suppression that allows reliable operation in fixed and variable frequency applications. Other key features include maximum 500 kHz switching frequency, anti-bounce logic and UVLO protection, 4 A peak turn-off gate drive current, low-power startup and low quiescent current, 10,7 V gate drive clamp, 70 ns turn-off propagation delay and a wide VCC operating range from 8,6 V to 18 V.
Quality batteries are critical for IIoT Uniross Batteries
Power Electronics / Power Management
Batteries intended for use in industrial operations must indeed offer complete reliability under extreme environmental conditions, resistance to vibration and harsh environments.
Read more...12 kW hybrid inverter
Power Electronics / Power Management
Sungrow recently unveiled its next-generation residential energy storage solution, expanding its power range from 5 kW to 12 kW with the introduction of the new MG12RL hybrid inverter.
Read more...40 W and 75 W railway DC/DC converter Brabek
Power Electronics / Power Management
RECOM has announced two new cost-efficient DC/DC converters for the rail market with an ultra-wide 11:1 input range to cover all nominal input voltages from 24 to 110 V DC.
Read more...Power modules for solid-state transformers RS South Africa
Power Electronics / Power Management
Microchip’s new 3,3 kV silicon carbide modules deliver the required thermal performance and efficiency for SSTs to increase power available for token generation.
Read more...Solving South African power problems with locally built intelligence
Editor's Choice Power Electronics / Power Management
Smart metering infrastructure in South Africa remains patchy. The rollout has been slow, coverage is inconsistent, and for the most part, granular per-unit measurement simply does not exist.
Read more...Wide range power module
Power Electronics / Power Management
The latest DC-DC modules from Würth Elektronik are characterised by high resilience to voltage transients on the 24 V bus and an extremely wide input-voltage range from 3,5 V to 38 V.
Read more...Cooling solutions for modern electronics Future Electronics
Passive Components
As electronic systems become more compact and powerful, effective thermal management has become a critical aspect of product design.
Read more...Same Sky expands rectangular connector portfolio Future Electronics
Interconnection
The portfolio includes male pin headers, female pin headers, and box headers, giving engineers the flexibility to select the most appropriate connector style for their specific design requirements.
Read more...Advanced sensing powers modern drones Future Electronics
DSP, Micros & Memory
Allegro MicroSystems has a portfolio of sensors, motor drivers, and power management devices specifically designed to enhance drone efficiency, reliability, and control.
Read more...Selecting primary batteries for maximum service life Uniross Batteries
Power Electronics / Power Management
Primary batteries play an important role in IoT applications. Designed for longevity, they have a high-energy capacity and are often used in standalone applications where charging is impractical or impossible.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version