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Voltage: Current: Resistance: Ohm`s Law:
Voltage: Current: Resistance: Ohm`s Law:

Power Supply Solution
Power Supply Solution

NJM723
NJM723

... error amplefier, power-series pass transistor and current-limit circuitry. Additional NPN or PNP pass elements may be used when output currents exceeding 150mA are required. In addition to the above, the device features low standby current drain, low temperature drift and high ripple rejection. The ...
LDP-CW 20-50
LDP-CW 20-50

Find the Thévenin equivalent circuit at the terminals U, V.
Find the Thévenin equivalent circuit at the terminals U, V.

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Slide 1

Signal Resistance of the Current Mirror
Signal Resistance of the Current Mirror

... allowed to do by Kirchhoff’s Current Law. Therefore the voltage at X must be zero and no current flows in either generator. The current I can now only flow through hoe for Transistor 2, so the signal resistance faced by the current I will be 1/ hoe. This ...
SP.764 Fall 04 - Problem Set 4
SP.764 Fall 04 - Problem Set 4

... 1. Sketch a plot the output of the AC wave generator as a function of time. 2. Below that, sketch a plot of the base current (equal to the current through the 5k resistor) as a function of time. 3. Below that, sketch a plot of the current through the 100 Ohm resistor, as a function of time, assum ...
Alternating Currents
Alternating Currents

... The frequency is the number of cycles per second. Units are hertz (Hz). ...
79L05 pdf - Soemtron.org
79L05 pdf - Soemtron.org

... applications. These include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. In addition, they can be used to control series pass elements to make high-current voltage-regulator circuits. One of these regulators can deliver up to 100 mA o ...
EMH11,UMH11N,IMH11A : Transistors
EMH11,UMH11N,IMH11A : Transistors

... VO=0.3V, IO=10mA IO/II=10mA/0.5mA ...
LM317AHV 3-Terminal Positive Adjustable Regulator Features Description
LM317AHV 3-Terminal Positive Adjustable Regulator Features Description

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Positive Input to Negative Output Conversion

... The buck-boost is usually the topology of choice for voltage inverting applications. There are plenty of components to choose from and most of them even come with integrated transistors or mosfets. They can work in hysteretic mode or they can switch at a fixed frequency. Very often when more power i ...
Muddiest Points Week 5
Muddiest Points Week 5

... were considering the LED to be a voltage source that draws current yet has no resistance or why we could ignore the other resistor in parallel with the LED when we wanted all current to go through the LED. << You can read the LED resistance from the linear part of the curve (R=V/I, the slope of the ...
Bipolar Transistors I – Page 1 Bipolar Transistors I
Bipolar Transistors I – Page 1 Bipolar Transistors I

... change in base current. From the data above, choosing VCE =6 volts as typical, one can calculate β as follows: ...
Bipolar Transistors I – Page 1 Bipolar Transistors I
Bipolar Transistors I – Page 1 Bipolar Transistors I

... collector-emitter voltage VCE for several different values of the base current IB. To eliminate some of the repetitious work we will do this using the LabView program Tran_param.vi. Figure 2 below shows the circuit that is used to do the measurement. The voltage on the collector is swept through a r ...
DO - MacMate
DO - MacMate

Sample ELEC 311 Final Questions
Sample ELEC 311 Final Questions

Differentiated Task - science
Differentiated Task - science

... For the circuit on the right are the pairs of components connected in series or in parallel? ...
Phy 440 Lab 8: Bipolar Transistors I
Phy 440 Lab 8: Bipolar Transistors I

... multimeter. This option sets the terminals of the multimeter so as to forward bias the junction and then to read the voltage across it. For a silicon transistor like the 2N2219 you expect to find a forward voltage of 0.6 or 0.7 volts. Test both the basecollector and the base-emitter junctions of you ...
Review:
Review:

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File

Ch 4 - Optocouplers
Ch 4 - Optocouplers

Transistor Hybrid model:-
Transistor Hybrid model:-

... Transistor Hybrid model:Use of h – parameters to describe a transistor have the following advantages. 1. h – parameters are real numbers up to radio frequencies . 2. They are easy to measure 3. They can be determined from the transistor static characteristics curves. 4. They are convenient to use in ...
- Catalyst
- Catalyst

... a) The conversion to decibels would be 20Log(Vout/Vin) = 20Log(2.83/1) = 9.036dB b) Vth is applied to the base and Rth is the effective resistance at this point. Vth/Rth will determine how much current available to the base. In this case, Rth = R2||R6. Vth is determined by Vcc*(R6/(R6+R2)) = Vth. c) ...
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Current mirror

A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being 'copied' can be, and sometimes is, a varying signal current. Conceptually, an ideal current mirror is simply an ideal inverting current amplifier that reverses the current direction as well or it is a current-controlled current source (CCCS). The current mirror is used to provide bias currents and active loads to circuits. It can also be used to model a more realistic current source (since ideal current sources don't exist).The circuit topology covered here is one that appears in many monolithic ICs. It is a Widlar mirror without an emitter degeneration resistor in the follower (output) transistor. This topology can only be done in an IC as the matching has to be extremely close and cannot be achieved with discretes.Another topology is the Wilson mirror. The Wilson mirror solves the Early effect voltage problem in his design.
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