Chapter 2 - Portal UniMAP
... Resistor: circuit element – used to model the current-resisting behavior Relationship between current and voltage for a resistor – Ohm’s Law Ohm’s Law: the voltage v across a resistor is directly proportional to the current I flowing through the resistor Georg Simon Ohm (1787-1854), a German physici ...
... Resistor: circuit element – used to model the current-resisting behavior Relationship between current and voltage for a resistor – Ohm’s Law Ohm’s Law: the voltage v across a resistor is directly proportional to the current I flowing through the resistor Georg Simon Ohm (1787-1854), a German physici ...
Cascode Current Mirror for a Variable Gain (LNA) Lini Lee
... 5.33 dB/mW [6]. This amplifier is matched internally using two spiral inductors and a capacitor. By inserting just a single inductor acting as an inter-stage matching network, a 2-GHz LNA can also be optimized [7]. On the other hand, a high-Q active inductor is introduced into a 1.75-GHz CMOS LNA to ...
... 5.33 dB/mW [6]. This amplifier is matched internally using two spiral inductors and a capacitor. By inserting just a single inductor acting as an inter-stage matching network, a 2-GHz LNA can also be optimized [7]. On the other hand, a high-Q active inductor is introduced into a 1.75-GHz CMOS LNA to ...
Heathkit W-4AM - Orange County (California) Amateur Radio Club
... are almost identical, providing around 380 420 VDC and 6VAC at 4 amperes for the filaments. The power transformer used in the W3M is rated at 810 VCT at 135 ma while the W2M transformer is rated at 750VCT at 120 ma. The multi-chassis units are connected by a cable that uses octal tube socket connect ...
... are almost identical, providing around 380 420 VDC and 6VAC at 4 amperes for the filaments. The power transformer used in the W3M is rated at 810 VCT at 135 ma while the W2M transformer is rated at 750VCT at 120 ma. The multi-chassis units are connected by a cable that uses octal tube socket connect ...
SGC-6489Z 数据资料DataSheet下载
... RFMD’s SGC-6489Z is a high performance SiGe HBT MMIC amplifier utilizing a Darlington configuration with an active bias network. The active bias network provides stable current over temperature and process Beta variations. Designed to run directly from a 5V supply, the SGC-6489Z does not require a d ...
... RFMD’s SGC-6489Z is a high performance SiGe HBT MMIC amplifier utilizing a Darlington configuration with an active bias network. The active bias network provides stable current over temperature and process Beta variations. Designed to run directly from a 5V supply, the SGC-6489Z does not require a d ...
EN (3321102)
... (3) Frequency of the input signal is varied from 100 Hz to 2 KHz. Note down the corresponding voltages on CRO for different frequencies. (4) Tabulate the readings and calculate the current using the formula I = V0/R (5) Plot the graph between voltage measured and frequency. (6) Draw a horizontal lin ...
... (3) Frequency of the input signal is varied from 100 Hz to 2 KHz. Note down the corresponding voltages on CRO for different frequencies. (4) Tabulate the readings and calculate the current using the formula I = V0/R (5) Plot the graph between voltage measured and frequency. (6) Draw a horizontal lin ...
SGA3586Z 数据资料DataSheet下载
... The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or ot ...
... The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or ot ...
r.f. INSTRUMENTATION, MEASUREMENT TECHNIQUES AND SAMPLE PREPARATION Chapter 2
... 2.2 Circuit Details of the Marginal Oscillator and rf Muleasurement Techniques For the present work we have built a marginal oscillator [13] whose circuit diagram is shown in the Fig. 1. The present circuit is different from that of the marginal oscillators [14-17] which are of Colpitts type and has ...
... 2.2 Circuit Details of the Marginal Oscillator and rf Muleasurement Techniques For the present work we have built a marginal oscillator [13] whose circuit diagram is shown in the Fig. 1. The present circuit is different from that of the marginal oscillators [14-17] which are of Colpitts type and has ...
Circuit Description of Effects Box
... When more then one effect is enabled the signals have to be mixed. This is done with an op-amp (LM324, U5B) in a unity gain, summing configuration. A 3.3V reference voltage is fed to the positive input with resistors R47 and R48, so the full analog signal can be passed. The output of the op-amp is c ...
... When more then one effect is enabled the signals have to be mixed. This is done with an op-amp (LM324, U5B) in a unity gain, summing configuration. A 3.3V reference voltage is fed to the positive input with resistors R47 and R48, so the full analog signal can be passed. The output of the op-amp is c ...
IC 555 timer powerpoint
... temperature just dropped to 0 ̊C and the resistance on the thermistor is 30 kΩ. PREDICT – will the light blink faster or slower? Calculate the period and frequency of the blinking ...
... temperature just dropped to 0 ̊C and the resistance on the thermistor is 30 kΩ. PREDICT – will the light blink faster or slower? Calculate the period and frequency of the blinking ...
Deluxe Stereo Amplifier Build Instructions
... channel that is fed into the IC (R2+R5 and R2+R6). Each of these reduces the input signal to a percentage of the original signal. As R2 is a variable potentiometer, it can be used to vary this percentage, which in turn varies the output volume. C3 is connected across the supply to make sure it remai ...
... channel that is fed into the IC (R2+R5 and R2+R6). Each of these reduces the input signal to a percentage of the original signal. As R2 is a variable potentiometer, it can be used to vary this percentage, which in turn varies the output volume. C3 is connected across the supply to make sure it remai ...
Lab 4: Bipolar transistors and transistor circuits Lab 4: Bipolar
... while still having a very low impedance at frequencies in the kHz range—for example, a 4.7 μF capacitor has XC=34 Ω at 1 kHz.) 4-5 Transistor switch The following circuit illustrates the use of a transistor for switching rather than amplification. We provide enough base current to saturate the trans ...
... while still having a very low impedance at frequencies in the kHz range—for example, a 4.7 μF capacitor has XC=34 Ω at 1 kHz.) 4-5 Transistor switch The following circuit illustrates the use of a transistor for switching rather than amplification. We provide enough base current to saturate the trans ...
Undriven RLC Circuit - TSG@MIT Physics
... steepest. Is the electric (capacitor) or magnetic (inductor) energy a local maximum at those times? Briefly explain why. ...
... steepest. Is the electric (capacitor) or magnetic (inductor) energy a local maximum at those times? Briefly explain why. ...
File
... same direction as the current, then going through battery b then back to the starting point below resistor 1….. the loop rule would be -V1 + Vb = 0 The voltage at the resistor will be negative because we went through the resistor in the same direction as the current and we know that when the current ...
... same direction as the current, then going through battery b then back to the starting point below resistor 1….. the loop rule would be -V1 + Vb = 0 The voltage at the resistor will be negative because we went through the resistor in the same direction as the current and we know that when the current ...
Lecture 11. Power in Electric Circuits, Kirchhoff`s Rules
... Lecture 11. Power in Electric Circuits, Kirchhoff’s Rules Outline: Energy and power in electric circuits. Voltage and Current Sources. Kirchhoff’s Rules. ...
... Lecture 11. Power in Electric Circuits, Kirchhoff’s Rules Outline: Energy and power in electric circuits. Voltage and Current Sources. Kirchhoff’s Rules. ...
SUBWOOFERS: LOW-PASS FILTERS Introduction Procedure
... The purpose of this section is to give a little intuition about how subwoofer speakers cutout high frequencies in order to just output bass, low frequencies. We know that you may not understand everything or anything in this upcoming section and that is ok. The overall goal of this lab is to show ho ...
... The purpose of this section is to give a little intuition about how subwoofer speakers cutout high frequencies in order to just output bass, low frequencies. We know that you may not understand everything or anything in this upcoming section and that is ok. The overall goal of this lab is to show ho ...
Regenerative circuit
The regenerative circuit (or regen) allows an electronic signal to be amplified many times by the same active device. It consists of an amplifying vacuum tube or transistor with its output connected to its input through a feedback loop, providing positive feedback. This circuit was widely used in radio receivers, called regenerative receivers, between 1915 and World War II. The regenerative receiver was invented in 1912 and patented in 1914 by American electrical engineer Edwin Armstrong when he was an undergraduate at Columbia University. Due partly to its tendency to radiate interference, by the 1930s the regenerative receiver was superseded by other receiver designs, the TRF and superheterodyne receivers and became obsolete, but regeneration (now called positive feedback) is widely used in other areas of electronics, such as in oscillators and active filters. A receiver circuit that used regeneration in a more complicated way to achieve even higher amplification, the superregenerative receiver, was invented by Armstrong in 1922. It was never widely used in general receivers, but due to its small parts count is used in a few specialized low data rate applications, such as garage door openers, wireless networking devices, walkie-talkies and toys.