Lecture_1
... of the resistance of the load. (i.e., they have zero internal resistance.) However, real voltage sources have an internal non-zero resistance and the voltage delivered depends upon the resistance of the load. Ideal Current sources supply a fixed current I independent of the resistance of the load. ( ...
... of the resistance of the load. (i.e., they have zero internal resistance.) However, real voltage sources have an internal non-zero resistance and the voltage delivered depends upon the resistance of the load. Ideal Current sources supply a fixed current I independent of the resistance of the load. ( ...
Physics 4700 Experiment 1 Instrumentation and Resistor Circuits Power supply:
... 6) Repeat part 2) using a 10 Hz (or as low frequency as practical) sine wave. Repeat measurements using a much higher (e.g. 1 kHz) frequency sine wave. Any frequency dependence for R? Note: Use a multimeter for the current measurement and an oscilliscope for the voltage measurement. All of our multi ...
... 6) Repeat part 2) using a 10 Hz (or as low frequency as practical) sine wave. Repeat measurements using a much higher (e.g. 1 kHz) frequency sine wave. Any frequency dependence for R? Note: Use a multimeter for the current measurement and an oscilliscope for the voltage measurement. All of our multi ...
The Field Effect Transistor
... FET, OPAmps I. p. 3 (b) The gain of the amplifier depends upon the transconductance gm. From Figure 3 on the data page, show that you expect gm ≈ 10-3 mho. (Recall that a mho is a ...
... FET, OPAmps I. p. 3 (b) The gain of the amplifier depends upon the transconductance gm. From Figure 3 on the data page, show that you expect gm ≈ 10-3 mho. (Recall that a mho is a ...
P4.4 Consider the following common source JFET amplifier circuit. Notice... it includes an additional bias resistor, R
... P4.4 Consider the following common source JFET amplifier circuit. Notice that it includes an additional bias resistor, R1, compared to the usual self-biasing circuit. Assume that transistor achieves the desired transconductance with VGS = – 0.5 V. However, due to design constraints, the voltage drop ...
... P4.4 Consider the following common source JFET amplifier circuit. Notice that it includes an additional bias resistor, R1, compared to the usual self-biasing circuit. Assume that transistor achieves the desired transconductance with VGS = – 0.5 V. However, due to design constraints, the voltage drop ...
Exam questions
... scale the output voltage waveform from (a) A half-wave rectifier (b) A bridge rectifier Assume that silicon diodes are used in each case. 11. Explain why a smoothing capacitor is used in conjunction with rectifier circuits. Sketch the circuit of a simple half-wave rectifier showing how the smoothing ...
... scale the output voltage waveform from (a) A half-wave rectifier (b) A bridge rectifier Assume that silicon diodes are used in each case. 11. Explain why a smoothing capacitor is used in conjunction with rectifier circuits. Sketch the circuit of a simple half-wave rectifier showing how the smoothing ...
Experiment 11
... When the frequency of the applied signal is low, the circuit is capacitive and the current leads the voltage. At high frequencies, the circuit is inductive and the current lags the voltage. At some intermediate frequency, the circuit is purely resistive and the phase difference between the voltage a ...
... When the frequency of the applied signal is low, the circuit is capacitive and the current leads the voltage. At high frequencies, the circuit is inductive and the current lags the voltage. At some intermediate frequency, the circuit is purely resistive and the phase difference between the voltage a ...
Alternating Current Applet Activity
... The root-mean-square (rms) value of an alternating current (or voltage) is that value of the direct current (or voltage) that dissipates power in a resistor at the same rate. In this activity you will determine the rms voltage of an ac resistor circuit and use it to show that its equivalent dc value ...
... The root-mean-square (rms) value of an alternating current (or voltage) is that value of the direct current (or voltage) that dissipates power in a resistor at the same rate. In this activity you will determine the rms voltage of an ac resistor circuit and use it to show that its equivalent dc value ...
Systems Repair Worksheet
... 1. Electricity is the flow of _________________ (-) from one atom to another. 2. _________________ is moving coiled conductors through magnetic fields to produce electricity. 3. Electricity is also produced by __________, thermal, photoelectrical & piezo-electrical means. 4. The unit for measuring e ...
... 1. Electricity is the flow of _________________ (-) from one atom to another. 2. _________________ is moving coiled conductors through magnetic fields to produce electricity. 3. Electricity is also produced by __________, thermal, photoelectrical & piezo-electrical means. 4. The unit for measuring e ...
Worksheet for Exploration 31.5
... Worksheet for Exploration 31.5: RL Circuits and Phasors Assume an ideal power supply. The graph shows the voltage as a function of time across the source (red), the resistor (blue), and the inductor (green) (voltage is given in volts and time is given in seconds). Restart. To analyze the currents an ...
... Worksheet for Exploration 31.5: RL Circuits and Phasors Assume an ideal power supply. The graph shows the voltage as a function of time across the source (red), the resistor (blue), and the inductor (green) (voltage is given in volts and time is given in seconds). Restart. To analyze the currents an ...
FET AS A VOLTAGE –VARIABLE RESISTOR (VVR):
... In JFET the drain source conductance gd = Id/Vds for small values of Vds which may be expressed as gd = gdo [ 1-( VgsVp)1/2 ] where gdo is the value of drain conductance when the bias voltage Vgs is zero. The variation of the rd with vgs can be closely approximated by rd = ro / 1- KVgs ro – drain re ...
... In JFET the drain source conductance gd = Id/Vds for small values of Vds which may be expressed as gd = gdo [ 1-( VgsVp)1/2 ] where gdo is the value of drain conductance when the bias voltage Vgs is zero. The variation of the rd with vgs can be closely approximated by rd = ro / 1- KVgs ro – drain re ...
Voltage to Current Converter (non Inverting) (step 1)
... In this the input voltage is applied to the non-inverting terminal of OPAMP. Load resistance is connected in place of the feedback resistor( ) This circuit is also called current series negative feedback amplifier. This is because of the feedback voltage across is proportional to output current ...
... In this the input voltage is applied to the non-inverting terminal of OPAMP. Load resistance is connected in place of the feedback resistor( ) This circuit is also called current series negative feedback amplifier. This is because of the feedback voltage across is proportional to output current ...
Voltage balancing resistors
... some of the capacitors having voltages across them that could exceed their voltage ratings. Exceeding the voltage ratings of a capacitor will compromise the reliability of the capacitor and could have other severe and dangerous consequences. It is therefore important that this situation be avoided i ...
... some of the capacitors having voltages across them that could exceed their voltage ratings. Exceeding the voltage ratings of a capacitor will compromise the reliability of the capacitor and could have other severe and dangerous consequences. It is therefore important that this situation be avoided i ...
1N5820 THRU 1N5822
... Rectron Inc reserves the right to make changes without notice to any product specification herein, to make corrections, modifications, enhancements or other changes. Rectron Inc or anyone on its behalf assumes no responsibility or liability for any errors or inaccuracies. Data sheet specifications a ...
... Rectron Inc reserves the right to make changes without notice to any product specification herein, to make corrections, modifications, enhancements or other changes. Rectron Inc or anyone on its behalf assumes no responsibility or liability for any errors or inaccuracies. Data sheet specifications a ...
Josephson voltage standard
A Josephson voltage standard is a complex system that uses a superconductive integrated circuit chip operating at 4 K to generate stable voltages that depend only on an applied frequency and fundamental constants. It is an intrinsic standard in the sense that it does not depend on any physical artifact. It is the most accurate method to generate or measure voltage and, by international agreement, is the basis for voltage standards around the World.