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Simple Cmos Universal Logic Probe Circuit Diagram . Only the CD4009AE hex buffer, two resistors, and two LEDs are required for a logic probe. CMOS logic probe features 10120 input impedance and covers 3 to 15 V range. While LEDs are visible at all voltages, a 1-K!l pot in place of R2 will allow the user to increase brightness at lower voltages.  Simple Cmos Universal Logic Probe Circuit Diagram

This Simple Cmos Motorcycle Alarm Circuit Diagram features an intermittent siren output and automatic reset. It can be operated manually using a key-switch or a hidden switch; but it can also be wired to set itself automatically when you turn-off the ignition. By adding external relays you can immobilize the bike - flash the lights etc. Cmos Motorcycle Alarm Schematic Diagram Notes Any number of normally-open switches may be used. Fit "tilt" switches that close when the steering is moved or when the bike is lifted off its side-stand or pushed forward off its centre-stand. Use micro-switches to protect removable panels and the lids of panniers etc. Once activated - the rate at which the siren switches on and off is controlled by R9 & C5. For example - increasing the value of C5 will slow it down - while reducing the value of R9 will make it faster. While at least one switch remains closed the siren will sound. About thirty seconds after all of the switches have been open...

This Simple Cmos Motorcycle Alarm Circuit Diagram features an intermittent siren output and automatic reset. It can be operated manually using a key-switch or a hidden switch; but it can also be wired to set itself automatically when you turn-off the ignition. By adding external relays you can immobilize the bike - flash the lights etc. Cmos Motorcycle Alarm Schematic Diagram Notes Any number of normally-open switches may be used. Fit "tilt" switches that close when the steering is moved or when the bike is lifted off its side-stand or pushed forward off its centre-stand. Use micro-switches to protect removable panels and the lids of panniers etc. Once activated - the rate at which the siren switches on and off is controlled by R9 & C5. For example - increasing the value of C5 will slow it down - while reducing the value of R9 will make it faster. While at least one switch remains closed the siren will sound. About thirty seconds after all of the switches have been open...

COMPARISON BETWEEN CMOS, BIPOLAR JUNCTION TRANSISTOR (BJT) AND GALLIUM ARSENIDE TECHNOLOGY   Here the following table helps you to learn the differences between Cmos, Bjt and GaAs Technologies. CMOS BIPOLAR GaAs Low power dissipation High power dissipation Medium power dissipation Low current drive High current drive Low current drive High input impedance Low input impedance High input impedance High noise margin Medium noise margin Low noise margin Medium speed of operation          High speed of operation           Very high speed of operation High voltage swing Low voltage swing Low voltage swing High packing density Low packing density High packing density High delay sensitivity Low delay sensitivity High delay sensitivity Low output drive High output drive Low output drive Bidirectional Unidirectional Bidirectional Ideal switching device Non ideal switching device Reasonable ...