A simple 'do it yourself' breathing circuit, using accessories that are readily available in intensive care, can be used to ventilate two critically ill patients at once, should clinicians be ...

The RC time constant should be short relative to the period of the resonant frequency of the transducer. ... The acoustic loading by radiation from the transducer port or diaphragm adds yet another ...

The controller is FAN2306, which is a constant-on-time controller from Fairchild Semiconductor. The circuit parameters are: V IN = 12V V O = 1.2V F SW = 500kHz L O = 1µH C O = 4x47µF MLCC R T ...

With the ripple injection circuit added in the waveform on the right the jitter is reduced to ~200ns and the output voltage ripple peak-peak reduces. The ripple injection circuit is very small, ...