Analog Comparator - Freescale
Analog Comparator - Freescale
Analog Comparator - Freescale
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Voltage Doubler<br />
►R4 and C3 provide the<br />
frequency for a square wave at<br />
the comparator output<br />
►Square wave means Vth and<br />
Vtl are centered around VCC/2<br />
►R1, R2, and R3 for hysteresis<br />
►C1 and C2 form the doubler,<br />
C1 = C2, along with D1 and D2<br />
►C2 and RL provide output<br />
filtering to minimize ripple<br />
►D1 and D2 are high speed<br />
diodes (1N4148)<br />
<strong>Freescale</strong> and the <strong>Freescale</strong> logo are trademarks of <strong>Freescale</strong> Semiconductor, Inc. All other product or service names are<br />
the property of their respective owners. © <strong>Freescale</strong> Semiconductor, Inc. 2007-2008. 23<br />
<strong>Comparator</strong> Example<br />
TM
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