ADXL202 Accelerometer to C Volt Output: The Air
Whammy is a simple dual control voltage generator
that uses a 2 axis accellerometer as the source. The
whole circuit fits into
a small project box (approximately 65x40mm), and is
powered from a 12V AC plugpack.
Switched-capacitor IC controls feedback loop:
02/17/00 EDN-Design Ideas - You can implement a
simple control loop with a constant setpoint over a
wide range of control by using a switched-capacitor
filter. The circuit controls motor speed over 1 to
200 Hz or 60 to 12,000 rpm. In Figure 1 , a National
LMF40CIWM four-pole lowpass...