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  • Sensor Sense: Passive Infrared-Motion Sensors
    Passive infrared (PIR) sensors detect infrared energy radiating from objects within their field of vision. Unlike infrared optical sensors that use an LED transmitter and IR receiver, the PIR emits nothing. As its "passive " name suggests, it responds only to infrared energy radiated by the object
  • Automotive Crossover Filters
    of passive crossovers that can be implemented, starting with the capacitor or inductor in series, and getting complex as more capacitors and inductors are added. The CWS’ AC Series of inductors are ideally suited for both active and passive crossover filters. Please select the inductance and current
  • AN121 Low Pass Filter Rise Time vs Bandwidth (.pdf)
    the denominator and rearranging Eqn. 1 will implement multi-pole LP filters. For example,. 1 results in Eqn. 2. cascading two circuits as shown in Figure 1 with properly. chosen Rs, Cs, and Gains creates a 6-pole LP filter. G*w1*w2*w3. Taking out one passive RC section in this cascade string,. T(s) =. Eqn. 2
  • Terms Used When Discussing Filters
    filters or particles creating a tortuous path of nominally rated size. Differential Pressure: The difference in pressure between the upstream and downstream sides of the filter. Diffusion Test: A test to determine the integrity of a filter. The test is based upon the transition from diffusional flow
  • Design Considerations When Applying Various ASD Topologies to Meet Harmonic Compliance
    appropriate one for. their particular application. Using computer simulation. and laboratory measurements, this paper analyzes the. most common passive solutions which include AC line. reactors or DC link chokes, phase shifting to produce. multi-pulse ASD's and inline passive harmonic filters. Various
  • Customization to Suppress EMI in DC Motors
    of passive components can be specified to create a low-. pass LC filter that will be inductive-capacitive at low frequencies and dissipative at higher frequencies.
  • Advances in Surface Mount Filtering Technology
    computer products are prime examples of devices offering greater functionality in ever smaller packages. These requirements, combined with increasing frequencies, lower signal levels, more densely populated boards and, not least, EMC legislation, have driven the need for new, higher performance passive
  • System Identification: A Practical Tool from a Fiddler's Paradise
    Measuring the frequency response of a linear system is a typical first step in characterizing it's. dynamic behavior. Requirements in control design and signal processing often demand. information beyond the frequency response. Underlying differential and/or difference. equations provide a concise

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