'Darlington pair' diaporamas de présentation

Guitar Amplifier with Analog/Digital Effects (Senior Design Project Fall/2013)

Guitar Amplifier with Analog/Digital Effects (Senior Design Project Fall/2013). Group 5 Members: Alex Chen Audrey Hernandez Brittany Delose Robert John. Motivation. Explore music and technology Have analog and digital effects User control

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Class 13

322 views • 19 slides

Output Transistors

Output Transistors. Current gain / input impedance is a vital parameter of a power amplifier. In the class A analysis, the load impedance is scaled by a factor of b . High power transistors often have a value of b of the order of tens rather than hundreds. Multiple Transistor Units.

557 views • 17 slides

Transistors

Transistors. Introduction. Transistors are : Electronic switches Amplifiers of electrical current Many sensors (e.g. LDR, Thermistor, etc) only provide a very small output current or voltage.

344 views • 14 slides

Optocouplers

Optocouplers. Optocouplers. LED for emitter Air as barrier for isolation Phototransistor for detector Transformer is similar, but only for AC Optocoupler can be used for DC. Emitter. Incandescent lamp Much slower response time than LED Can filter out high frequency noise

187 views • 13 slides