A divider circuit can be built using only a single chip component, the AD532 IC. This integrated circuit can be configured as a two quadrant divider. This can be achieved by connecting the multiplier cell in the feedback loop of the operational amplifier and using the Z terminal as a signal input (see below figure). [...]
This pdf publication shows the schematic diagram on the fast settling low-pass filter. It is published by the Burr-Brown Application Bulletin. The items discussed inside the publication are including the nonlinear filter, improved nonlinear filter, some signals which requires prefiltering, assure of op amp stability, and many more. For more details about the publication, you [...]
This simple circuit diagram creates a very realistic sirenlike sound. It produces increasing, then decreasing frequency square waves when you push the button. The siren can be built for about $10. It’ll make any child the envy of his playmates when they hear him coming on his wagon, pedal car or bicycle. The volume is [...]
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