The demand for information is growing at unprecedented rates and society’s insatiable appetite for communication, computing and downloading, is driving this demand. With emerging technologies, such as, cloud computing and the internet of things, not to mention the 300 hours of video being loaded to YouTube every minute, this trend for more and faster access […]
DC-DC
Ceramic or electrolytic output capacitors in DC/DC converters – Why not both?
By Michael Score, Texas Instruments Switching power supplies are used in almost every end-equipment that needs a long battery life, low heat generation, or to meet ENERGY STAR® guidelines. When designing a switching power supply, it is difficult to decide which output capacitor type to use. Electrolytic capacitors have high equivalent series resistance (ESR), making […]
Top power electronics threads on EDAboard.com – August
Phase shift full-bridge SMPS is massively over-hyped? – The Phase Shift Full Bridge (PSFB) converter is a hoax. The LTspice simulation (Editor’s note: see post for file) of a “plain” full-bridge SMPS bears this out. PSFB claims to be able to reduce switching losses compared to the “plain” full-bridge SMPS. However, the PSFB does have turn-OFF switching losses, just […]
Instruments help engineers quickly test and optimize inverter MPPT algorithms for improved solar power production
Keysight Technologies, Inc. introduced two photovoltaic array simulators, the N8937APV and N8957APV, to help engineers develop, verify and maximize the performance of inverter maximum power point tracking algorithms and circuits. Engineers need to ensure their solar inverters are capable of converting maximum power from the solar array to which they are connected. Developing and verifying […]
DC/DC buck regulators with on-time control architecture
ZSPM4023 product family ICs are constant-frequency, synchronous DC/DC buck regulators featuring an adaptive on-time control architecture. The ZSPM4023 operates over a supply range of 4.5V to 28V at a constant 600kHz switching frequency in continuous-conduction mode. The ZSPM4023 internal linear regulator provides a regulated 5V for the internal control circuitry that regulates the input signal […]
3W to 10W DIP-24 DC-DC converters have medical certification
TDK Corporation announces the introduction of the TDK-Lambda PXC-M series of DC-DC converters. Operating over a 4:1 input range, the 3W, 6W and 10W products are enclosed in the industry standard 1.25 x 0.8 x 0.4 inch DIP-24 package. Applications include a wide variety of medical applications and battery powered equipment. With a 5,000Vac input […]
Sealevel’s SeaISO UL recognized, medical-grade USB isolators protect connected USB devices
Sealevel announces the SeaISO® family of USB isolators with 4 kV of medical-grade optical isolation between the host computer and connected USB equipment. SeaISO USB isolators are UL Recognized, in accordance with EN60601-1 3rd Edition, and protect both the power and data lines of connected USB devices from harmful ground loops, damaging transients and surges […]
200 – 425VDC input DC-DC converter with added output voltages from TDK-Lambda
TDK Corporation announces the introduction of an extension to the TDK-Lambda PH-A280 series of DC-DC power modules with high voltage DC input. Operating from a wide range DC input of 200 to 425VDC, which is widely used in HVDC (High Voltage DC Current) applications, the PH-A280 range now includes 3.3V, 15V and 28V outputs. The […]
TDK-Lambda DC-DC converter series extended with additional output voltages
TDK Corporation announces the introduction of an extension to the TDK-Lambda PH-A280 series of DC-DC power modules with high voltage DC input. Operating from a wide range DC input of 200 to 425VDC, which is widely used in HVDC (High Voltage DC Current) applications, the PH-A280 range now includes 3.3V, 15V and 28V outputs. The […]
Powerex releases integrated power module
Product Description: The Powerex Integrated Power Module (PIPM) is a configurable IGBT-based power platform. Product Ratings and Characteristics: The module has rated power outputs from 75-229 KW and operates on DC bus voltages from 400 to 800 VDC and switching frequencies of up to 20 kHz. The power module can be mounted on various heatsinks, […]
