When testing the response of many pulse-width-modulated (PWM) systems, there's a need to independently vary a multivibrator's frequency and duty cycle. Such systems include dc motors, ultrasonic ...

When potentiometer R1 is centered, operation is obvious and the duty cycle is 50%. However, as R1 is rotated in either direction the charge time and discharge times vary accordingly. The two sides of ...

The LM3495 PWM buck controller from National Semiconductor employs the company's emulated-current-mode architecture to generate output voltages with very low duty cycles at switching frequencies up to ...

The duty cycle is the ratio of the turn-on time (TON) to the complete cycle length, the turn-off time (TOFF) plus on time, and defines a simple relationship between the input voltage and an output ...

Please provide your email address to receive an email when new articles are posted on . It is possible to reduce the phaco time and energy during cataract surgery using phaco power modulations, which ...

If you need to regulate your power input down to a reasonable voltage for a project, you reach for a switching regulator, or failing that, an inefficient linear regulator. What if you need to boost ...