Announcements of articles and news
Instrumentation amp has low offset, drift, and low-frequency noise
02.12.2018 · Circuits
Analog Devices’ digitally gain-programmable AD8231 instrumentation amplifier exhibits zero offset. It has programmable voltage gains, which are successive powers of two, from 20 = 1 to 27 = 128. The AD825x family also includes some digitally gain-programmable instrumentation amplifiers, which have gain expressed as powers of 10...
New ISO 26262 / ASIL-D Power Management IC for Automotive Control Units
02.12.2018 · News
Allegro MicroSystems announces a new power management IC that integrates a buck or buck/boost pre-regulator, four LDOs, and four floating gate drivers. The pre-regulator uses a buck or buck/boost topology to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage...
Single cell lights any LED
02.11.2018 · Circuits
The circuit allows you to light any type of LED from a single cell whose voltage ranges from 1 to 1.5 V. This range accommodates alkaline, carbon-zinc, NiCd, or NiMH single cells. The circuit's principal application is in LED-based flashlights, such as a red LED in an astronomer's flashlight, which doesn't interfere with night vision...
New Vishay Intertechnology Integrated Power Phototriac With 600 V/µs dv/dt Reduces Costs and Saves Space
02.11.2018 · News
Vishay Intertechnology introduced a new 1 A integrated power phototriac designed to directly drive medium AC loads. Featuring high dv/dt to 600 V/µs, the Vishay Semiconductors VO2223B delivers high robustness and noise isolation for home appliances and industrial equipment...
Add Simple Temperature Monitoring To Battery-Management Systems
02.08.2018 · Circuits
Environmental concerns are spurring the development of clean transportation alternatives. Most popular are full electric and hybrid electric motor vehicles, which use stacks of lithium-ion battery cells as the electric power source. To ensure efficient operation and long battery life, the cells are continually monitored for the available charge, known as the state of charge...
New Three-phase MOSFET Driver IC with On-board Regulator
02.08.2018 · News
Allegro MicroSystems, LLC announces a new three-phase MOSFET driver IC with an integrated low dropout regulator supplying 5 V or 3.3 V. Allegro’s A4919 is designed for a wide range of industrial applications...
Voltage-To-Frequency Conversion Simplifies Microvolt Measurements
02.07.2018 · Circuits
In certain applications, like pH measurement based on electromagnetic field changes in an electrochemical reaction, the change in voltage is very small and the voltage range varies with the solution's concentration. Designers can make such microvolt measurements using a precision voltage-to-frequency converter along with a programmable instrumentation amplifier...
Toshiba releases 100V N-channel power MOSFETs for industrial applications
02.07.2018 · News
Toshiba Electronics Europe has started to ship two new 100 V additions to its low-voltage U-MOS IX-H N-channel power MOSFET series. The new devices are ideally suited to power supply applications in industrial equipment as well as motor control applications...
Vintage electrical measuring instruments from the 1950s
02.06.2018 · Articles
When EDN published its first issue in 1956, electrical measuring instruments looked a little different than they do today. Howard Skolnik, a former colleague and key analog mentor from my Burr-Brown days, has always had a passion for significant products made by pioneering electrical instrument companies and has accumulated a large collection over the years that includes Burr-Brown, General Radio, Leeds, and Northrup and Weston...
Control VOUT of Any DC/DC Regulator with a Serial PMBus Interface
02.06.2018 · News
Analog Devices announces the Power by Linear™ LTC7106, a PMBus I2C controlled precision bidirectional current DAC designed to adjust the output voltage of virtually any DC/DC regulator. Through its PMBus compatible interface, the LTC7106 receives a 7-bit serial code and converts it to a bidirectional (source, sink) output current...