In this installment of Circuit VR, we’ll look at a simple ... boost-buck when you just can’t decide. We will flesh out the design more next time. We’ll eventually get to a buck converter ...

Only the PWM input signal needs to be precisely 5 V. Because it uses only six components, this circuit can be very cost effective. The LM431 can be purchased for as low as 10 cents in single-unit ...

A buck-boost converter can be implemented as shownin Figure 1 above. This implementation has the advantage that a simple, low-side MOSFETdriver ... Theseinclude a high speed, two-phase PWM circuit, ...

The buck-boost converter in Figure 1 uses an Elantec EL7515 pulse-width modulation (PWM) step-up dc-dc regulator ... to the typical operating circuit, the converter becomes a buck-boost converter.

Community collaboration is a great thing. Take the Arduino PWM library for shift registers. Some folks at the Arduino forum pitched in and helped [Elco] trim off a bunch of clock cycles by using ...