Chapter_4_Lecture_PowerPoint
... 3. When one is using phasor notation, it is important to note the specific frequency ω of the sinusoidal signal, since this is not explicitly apparent in the phasor expression. ...
... 3. When one is using phasor notation, it is important to note the specific frequency ω of the sinusoidal signal, since this is not explicitly apparent in the phasor expression. ...
Radio Signals and Fundementals
... Amount frequency varies when modulated is called deviation FM transmitters operate at full power at all times, even when you are ...
... Amount frequency varies when modulated is called deviation FM transmitters operate at full power at all times, even when you are ...
RLC Series Circuits ( )
... using the phasor calculations as in Serway’s Chapter 33. The expression ωL and 1/ωC are known as the inductive reactance and capacitive reactance, respectively; using dimensional analysis, you should be able to show that each has units of Ohms. At the frequency where the inductive and capacitive rea ...
... using the phasor calculations as in Serway’s Chapter 33. The expression ωL and 1/ωC are known as the inductive reactance and capacitive reactance, respectively; using dimensional analysis, you should be able to show that each has units of Ohms. At the frequency where the inductive and capacitive rea ...
Poster_a
... the generated phase (A) PWM patterns for two different switching frequencies 5 kHz and 10 kHz . The amplitude of the generated three phase signals is 3.3V so they are amplified and sent to the three phase inverter’s IGBT driving circuit, which operates at 12V. Resistors (30 ) in series with inducto ...
... the generated phase (A) PWM patterns for two different switching frequencies 5 kHz and 10 kHz . The amplitude of the generated three phase signals is 3.3V so they are amplified and sent to the three phase inverter’s IGBT driving circuit, which operates at 12V. Resistors (30 ) in series with inducto ...
Slide 1
... the generated phase (A) PWM patterns for two different switching frequencies 5 kHz and 10 kHz . The amplitude of the generated three phase signals is 3.3V so they are amplified and sent to the three phase inverter’s IGBT driving circuit, which operates at 12V. Resistors (30 ) in series with inducto ...
... the generated phase (A) PWM patterns for two different switching frequencies 5 kHz and 10 kHz . The amplitude of the generated three phase signals is 3.3V so they are amplified and sent to the three phase inverter’s IGBT driving circuit, which operates at 12V. Resistors (30 ) in series with inducto ...
UMS-2000-A16-G 数据资料DataSheet下载
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
6 – UJT Relaxation Oscillator
... 2. Measure the peak voltage Vp of the circuit. Connect a voltmeter across CE and observe the charging and discharging of the capacitor. The voltmeter reading will be fluctuating from a high reading to a low reading. Observe closely the movement of the meter pointer and measure the maximum voltage r ...
... 2. Measure the peak voltage Vp of the circuit. Connect a voltmeter across CE and observe the charging and discharging of the capacitor. The voltmeter reading will be fluctuating from a high reading to a low reading. Observe closely the movement of the meter pointer and measure the maximum voltage r ...
Signal Theory
... domain. (No peak means no periodicity, which means predictable) Noise can be compared to white light which has a flat frequency plot in ...
... domain. (No peak means no periodicity, which means predictable) Noise can be compared to white light which has a flat frequency plot in ...
Frequency response of CE amplifier
... We want to determine the effects of the capacitors CC, CE, Cbc, and of the voltage gain Av on the amplifier’s bandwidth. For each of the following variables we consider as reference value: CC=10nF, CE=100F, Cbe=2,6pF (parasitic capacitance of the transistor), Av=-90 (value which can be determined f ...
... We want to determine the effects of the capacitors CC, CE, Cbc, and of the voltage gain Av on the amplifier’s bandwidth. For each of the following variables we consider as reference value: CC=10nF, CE=100F, Cbe=2,6pF (parasitic capacitance of the transistor), Av=-90 (value which can be determined f ...
AC Circuits - Oscilloscopes and Filter Circuits
... the CH1 input of the oscilloscope. In order to see the waveform on the screen, the two main things you’ll need to adjust are the TIME/DIV knob (the x-axis of the oscilloscope) and the VOLTS/DIV knob (the y-axis). You can also adjust the Trigger parameters (basically, the way the oscilloscope decides ...
... the CH1 input of the oscilloscope. In order to see the waveform on the screen, the two main things you’ll need to adjust are the TIME/DIV knob (the x-axis of the oscilloscope) and the VOLTS/DIV knob (the y-axis). You can also adjust the Trigger parameters (basically, the way the oscilloscope decides ...
Supplemental Material
... It is real that the presented technique bears resemblance to a lock-in amplifier. The difference lies in that we used a band pass filter at 32 kHz instead of using a low pass filter. The aim of the presented technique is to measure the amplitude of a sinusoidal signal with a known frequency. When us ...
... It is real that the presented technique bears resemblance to a lock-in amplifier. The difference lies in that we used a band pass filter at 32 kHz instead of using a low pass filter. The aim of the presented technique is to measure the amplitude of a sinusoidal signal with a known frequency. When us ...
Introduction to oscilloscopes • Triggering • 10x probes • DC coupling
... 10x probe divides signal by 10. To display the actual signal, we need to tell the scope to multiply its measurement by 10. ...
... 10x probe divides signal by 10. To display the actual signal, we need to tell the scope to multiply its measurement by 10. ...
Sound Recording and Reproduction
... one of these plates is made of very light material and acts as the diaphragm. The diaphragm vibrates when struck by sound waves, changing the distance between the two plates and therefore changing the capacitance. Changes in the capaciatnce produces a corresponding audio electric signal. A voltage i ...
... one of these plates is made of very light material and acts as the diaphragm. The diaphragm vibrates when struck by sound waves, changing the distance between the two plates and therefore changing the capacitance. Changes in the capaciatnce produces a corresponding audio electric signal. A voltage i ...
pscc-schFINAL
... the signal. The complex space-phasor of the converter output voltages is investigated using WVD allowing fast and compact analysis of the three-phase system. Figures 12 and 13 show the estimated frequency representation of the space-phasor. The signal was sampled with the frequency of 5 kHz and 200 ...
... the signal. The complex space-phasor of the converter output voltages is investigated using WVD allowing fast and compact analysis of the three-phase system. Figures 12 and 13 show the estimated frequency representation of the space-phasor. The signal was sampled with the frequency of 5 kHz and 200 ...
Ami Pro - EUMC-DEF.SAM
... to set up one common gate voltage while changing drain voltages individually, or to change both drain and gate bias voltages individually. Of those, we have selected the first possibility. The oscillator built is depicted at Fig. 3. Drain voltage, common to all transistors, has been supplied through ...
... to set up one common gate voltage while changing drain voltages individually, or to change both drain and gate bias voltages individually. Of those, we have selected the first possibility. The oscillator built is depicted at Fig. 3. Drain voltage, common to all transistors, has been supplied through ...
Heterodyne
Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.