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Oh No! I Have to Design a PA
Oh No! I Have to Design a PA

... FETs – the requirements on the FET depends on how it is used. For bias circuit, FET above Emitter is okay. For higher frequency/power switching, the FET must be under the HBT. Diodes (can be BE, BC, or Schottky) are also used for different purposes and should be scalable. The use is from bias circui ...
Digital Generation of LFO`s for Modulating Effects
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... NPN transistor turn on more. For small voltages at its collector and small base currents, this acts like a variable resistor. This is the variable resistor technique actually used in effects like the Seamoon Funk Machine, EH Dr. Q, and the EH Pulsar tremolo. The trick here is to make the base curren ...
Triac dimmable LED lighting solution: Luigi Galioto, Ranajay Mallik, Manoj Kumar ABSTRACT
Triac dimmable LED lighting solution: Luigi Galioto, Ranajay Mallik, Manoj Kumar ABSTRACT

... still maintaining a good LED current accuracy (+/-5%). The device can also provide a constant output voltage regulation (CV): it allows the application to be able to work safely when the LED string opens due to a failure. In addition, the device offers the shorted secondary rectifier (i.e. LED strin ...
Procedures - Faculty of Engineering
Procedures - Faculty of Engineering

... small due to a small input current IB. This small IC is associated to the fact that both the collector junction and the emitter junction are reverse biased by the applied voltage. ...
Procedures - Faculty of Engineering
Procedures - Faculty of Engineering

... small due to a small input current IB. This small IC is associated to the fact that both the collector junction and the emitter junction are reverse biased by the applied voltage. ...
Power Modifications for the ST-150-BJ-1
Power Modifications for the ST-150-BJ-1

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Benefits of Voltage Optimisation

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... The Fairchild Switch FST3384 provides 10 bits of highspeed CMOS TTL-compatible bus switches. The low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. The device is organized as two 5-bit switches with ...
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protection_from_ligh..

... • Damage caused by large current or the heat caused by current flow – Electronic circuits damaged by high current or voltage caused by that current. • If lightning occurs near an overhead electric or telephone line, large current induced or injected into the line. • Charge can also be injected into ...
Common Base, Common Emitter, and Common Collector
Common Base, Common Emitter, and Common Collector

... It was expected that the measured gain of the Common Collector Amplifier would be approximately unity. The circuit in Figure 9.11 had a voltage gain of 0.86. When a resistive load was added to the circuit the voltage gain became 0.87. Adding a load to the circuit had no effect on the gain. The circu ...
“The CMOS Inverter” as a comparator in ADC designs
“The CMOS Inverter” as a comparator in ADC designs

... rising and falling intervals of high frequency input signals. It can be shown that the Vth point on the VTC of a CMOS inverter, which is shown in Fig. 1 (b), can approximately be given by the following equation [6],[7]: ...
EEEE 381 Lab 5 Two-Stage Op Amp - RIT
EEEE 381 Lab 5 Two-Stage Op Amp - RIT

... Note that all NMOS body connections (pin 7) go to the lowest supply (–VSS). Since we are using a separate chip for M1 and M2 from the one for M5 and M6, we could eliminate body effect in M1 and M2 by connecting their bodies directly to their sources. However, that is not realistic because all the N ...
IS31LT3135 - Integrated Silicon Solution
IS31LT3135 - Integrated Silicon Solution

... When the main channel works,it is a constant current source driving the main LED and the current is set by an external resistor connected to the ISET pin. It needs only 0.1v dropout voltage for 200mA output current. When the sub-channel works, the chip will pull down the sub LED’s cathode to ground. ...
“The CMOS Inverter” as a comparator in ADC designs
“The CMOS Inverter” as a comparator in ADC designs

... rising and falling intervals of high frequency input signals. It can be shown that the Vth point on the VTC of a CMOS inverter, which is shown in Fig. 1 (b), can approximately be given by the following equation [6],[7]: ...
Universal Telephone Hold
Universal Telephone Hold

... connected to the hold components through bridge rectifier BR so the input is not polarity sensitive and the input lines may be connected either way. BR always connects the positive side of the line to zener diode D2 and the negative side of the line to IC2. If L1 is positive, current flows into the ...
Circuits - Fulton County Schools
Circuits - Fulton County Schools

...  electricity jumps across the path of least resistance - the work is not accomplished ...
IXAN0068 - IXYS Corporation
IXAN0068 - IXYS Corporation

... Consider a 2A/600V regulated power supply that needs to be tested with an active load comprised of multiple Power MOSFETs operating in parallel. In this application, Power MOSFETs should have a rating of 1000V for BVDSS and be capable of dissipating the maximum output power plus a safety margin that ...
TD62604PG,TD62604FG - Toshiba America Electronic Components
TD62604PG,TD62604FG - Toshiba America Electronic Components

... exceed its absolute maximum ratings, when the wiring is routed improperly or when an abnormal pulse noise occurs from the wiring or load, causing a large current to continuously flow and the breakdown can lead smoke or ignition. To minimize the effects of the flow of a large current in case of break ...
AN4721, S12ZVH: Hardware Design Guidelines
AN4721, S12ZVH: Hardware Design Guidelines

A SPICE MODEL FOR IGBTs
A SPICE MODEL FOR IGBTs

... emulate different IGBT devices. The model accurately simulates, switching loses, nonlinear capacitance effects, on-voltage, forward/reverse breakdown, turn-on/turn-off delay, rise time and fall tail, active output impedance, collector curves including mobility modulation. ...
Two Transistor Synapse with Spike Timing Dependent Plasticity
Two Transistor Synapse with Spike Timing Dependent Plasticity

... incorporate STDP-like behavior. Furthermore, in order to accurately synthesize even the simplest neural architectures, STDP synapses must be realized in ultra-compact form with very high integration density. As a first step down that path, we have developed a two transistor synapse for implementing ...
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The Harsh Reality of Wide-Ranging 4V–36V Automotive Batteries Is
The Harsh Reality of Wide-Ranging 4V–36V Automotive Batteries Is

... The LTC4000 is a high voltage controller and power manager that converts virtually any externally compensated DC/DC power supply into a full-featured battery charger. The LTC4000 is capable of driving typical DC/DC converter topologies, including buck, boost, buck-boost, SEPIC and flyback. The devic ...
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Transistor



A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits.The transistor is the fundamental building block of modern electronic devices, and is ubiquitous in modern electronic systems. Following its development in 1947 by American physicists John Bardeen, Walter Brattain, and William Shockley, the transistor revolutionized the field of electronics, and paved the way for smaller and cheaper radios, calculators, and computers, among other things. The transistor is on the list of IEEE milestones in electronics, and the inventors were jointly awarded the 1956 Nobel Prize in Physics for their achievement.
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