EDN

Signal Chain Basics #96: Active Loop Filter Designs

At the heart of a clocking device is the phased-locked loop (PLL). A key part of the PLL is the loop filter, which converts correction currents from the PLL charge pump into a control voltage for the ...
The Scientist

Sartorius Stedim Biotech launches two Single-use Sartocon® Loop Assemblies

Sartorius Stedim Biotech (SSB), a leading international supplier for the biopharmaceutical industry, today announced its polyethersulfone membrane (PESU) is now integrated into two new, sterile ...
Electronic Design

Use PWM To Maintain Motor Speed And Phase While Eliminating Loop Filter

In designing a simple spectroscopy setup, we needed to synchronize the speed of a small, inexpensive dc motor precisely to 6000 rpm (100 Hz). Our first idea was to take a phase-frequency detector type ...
technologynetworks

Sartorius Launches Two Single-Use Sartocon® Loop Assemblies with Integrated PESU Membrane

Sartorius Stedim Biotech has announced its polyethersulfone membrane (PESU) is now integrated into two new, sterile Sartocon® benchtop and production scale filtration assemblies. Using these ...