The reliability of board-mounted dc/dc converters is important to understand and quantify. It’s a measure of the frequency of system or device failures as a function of time. Reliability is the observed failure rate and is defined as either the time between two failures (in hours), called the Mean Time Between Failures (MTBF), or the […]
Converters
EMC/EMI design and the use of board-mount dc/dc converters
Electromagnetic compatibility (EMC) and electromagnetic interference (EMI) are system-level considerations that have implications for power system design, especially when multiple board-mounted dc/dc converters are used in a distributed power architecture (DPA). EMC/EMI is a multidimensional consideration and includes differential- and common-mode noise on both the input and output of the converter radiated and conducted noise […]
Half-bridge PCBs help evaluate GaN drivers, transistors
GaN Systems announced the release of two 650V half-bridge daughter cards (30A and 60A), which provide an ultra-versatile platform to evaluate GaN drivers and transistors. The evaluation cards are available in two power levels, up to 3kW (GS-EVB-HB-66508B-RN) and up to 6kW (GS-EVB-HB-66516T-RN), and include the Renesas RAA226110 low-side GaN FET driver. These cards are the industry’s […]
Thermal management considerations for board-mounted dc/dc converters
System-level thermal design is equally important to the electrical specifications of board-mounted dc/dc converters. And the growing use of variations on a distributed power architecture (DPA) increases the complexity of thermal design. A single multiple-output ac/dc power supply is used to power the various loads in a conventional power architecture. The use of a centralized […]
Specifying board-mounted dc/dc converters
The specification of board-mounted dc-dc converters is an important and detailed process. Correctly implemented, it results in a cost-effective solution that meets all the needs of the application. Incorrectly specified dc/dc converters can result in a more costly device than necessary and/or a device that is not suited for the application. This FAQ will review […]
High-temp, high-ripple current capacitor yields long life
New Yorker Electronics has announced the release of the new Vishay BC Components 190 RTL Aluminum Capacitors for increased design flexibility and board space in high-temperature applications. The new Automotive Grade miniature aluminum electrolytic capacitors offer high ripple currents up to 3.36A, operating temperatures to +125°C, and up to 6,000 hours of usable life. […]
Isolated high-power current-sense modules include amplified analog output
New Yorker Electronics has announced the release of the new SSA Smart Current Sensor series from Riedon. Riedon’s new Smart Shunt SSA combines low-impedance manganese shunt resistance, a high-precision insulated amplifier, and an isolated DC/DC converter. Riedon’s SSA family of Isolated Smart Current Measurement Technology consists of four current ratings: 100A, 250A, 500A, and 1000A. […]
eGaN FETs target USB-C chargers, PoL conveters
Efficient Power Conversion Corporation advances the performance capability of low voltage, off-the-shelf gallium nitride transistors with the introduction of the EPC2055 (3 mΩ, 40 V) eGaN FET. This device is ideal for applications with demanding requirements for performance in space-constrained form factors including USB-C battery chargers and ultra-thin point-of-load (POL) converters. Other low-voltage applications benefiting from […]
DIP-24-sized 12-W power converters boast high power density
The TEL 12 & TEL 12WI are isolated 12 Watt converters which come in the ultra-compact DIP-16 metal package measuring only 0.94 x 0.54 x 0.40”, effectively doubling the power density compared to most 12 Watt converters in DIP-24 package. These converters are an economical solution for space-critical and cost-sensitive applications in instrumentation, IT, and […]
Chokes deliver common and differential mode in one SMD for DC power line apps
Bourns, Inc. announced two new low-profile, high current series of compact surface mount common mode chokes. The new SRF1206A and SRF9045A series provide not only common mode but also differential mode filtering in a single choke configuration. These highly robust products offer high current capacity to answer the need for components that meet board space constraints in an increasing number of […]
