Project One – AC to DC Converter
... filter, which proved to drop too much voltage, thereby creating too low of an average output ripple. While the ripple of the output was less than 200mV, it averaged only about 4.5 volts, which was under the specification. One way to increase the average of the output voltage would be to add a DC vol ...
... filter, which proved to drop too much voltage, thereby creating too low of an average output ripple. While the ripple of the output was less than 200mV, it averaged only about 4.5 volts, which was under the specification. One way to increase the average of the output voltage would be to add a DC vol ...
Sizing a rectifier-based power supply
... This is clearly not suitable as a DC power source since the load is looking for a constant DC value. This is where the capacitor, C, and the LM78XX voltage regulator of Figure 1 become important. A typical voltage regulator requires that the voltage on the input pin maintain a certain margin above t ...
... This is clearly not suitable as a DC power source since the load is looking for a constant DC value. This is where the capacitor, C, and the LM78XX voltage regulator of Figure 1 become important. A typical voltage regulator requires that the voltage on the input pin maintain a certain margin above t ...
16spFinal
... this one at 1.5V, to use for the gate and body of that PMOS switch. a. [4] Using your bandgap reference of 1.2V, sketch the complete regulator circuit. Start at a high level, with an op-amp symbol, some resistors, etc. b. [4] Discuss the topology for your op-amp, including input devices, what overdr ...
... this one at 1.5V, to use for the gate and body of that PMOS switch. a. [4] Using your bandgap reference of 1.2V, sketch the complete regulator circuit. Start at a high level, with an op-amp symbol, some resistors, etc. b. [4] Discuss the topology for your op-amp, including input devices, what overdr ...
A Novel High-Frequency Multiphase Crowbarless High
... thyristors) operating in parallel to the klystron path (known as crowbars) are used for protection. To avoid false firing and reliability issues of crowbars, a crowbar less power supply is preferred, wherein stored energy in the power supply is kept less than the maximum energy handling capability o ...
... thyristors) operating in parallel to the klystron path (known as crowbars) are used for protection. To avoid false firing and reliability issues of crowbars, a crowbar less power supply is preferred, wherein stored energy in the power supply is kept less than the maximum energy handling capability o ...
Transient Response of a RC Circuit
... OBJECTIVE: The object of this experiment is to investigate the response of a series resistive-capacative circuit when excited with a step function and when excited with an initial condition. ...
... OBJECTIVE: The object of this experiment is to investigate the response of a series resistive-capacative circuit when excited with a step function and when excited with an initial condition. ...
Assignment 05 - The University of Iowa
... Problem 2 An engineer designs a power supply that consists of a transformer, a full-wave, 4diode bridge rectifier and a smoothing capacitor. She designed the supply to operate in the U.S. where the power line (mains) frequency and voltage is 60 Hz and 120 V respectively. The ripple voltage at full l ...
... Problem 2 An engineer designs a power supply that consists of a transformer, a full-wave, 4diode bridge rectifier and a smoothing capacitor. She designed the supply to operate in the U.S. where the power line (mains) frequency and voltage is 60 Hz and 120 V respectively. The ripple voltage at full l ...
Chapter 11: Capacitive Transients, Pulse and
... Capacitor Discharge Equations • Note that the current is negative because it flows opposite to the reference direction. • As for the charging phase, discharge transients last five time constants. • All voltages and currents are at zero when the capacitor has fully discharged. ...
... Capacitor Discharge Equations • Note that the current is negative because it flows opposite to the reference direction. • As for the charging phase, discharge transients last five time constants. • All voltages and currents are at zero when the capacitor has fully discharged. ...
Document
... a. If Np=400, Ns=1200, and Vg =100V, find the magnitude of Ip if ZL = 9+j12 ohms. b. Find the magnitude of the voltage VL and the current IL for the conditions of part (a). ...
... a. If Np=400, Ns=1200, and Vg =100V, find the magnitude of Ip if ZL = 9+j12 ohms. b. Find the magnitude of the voltage VL and the current IL for the conditions of part (a). ...
Why led driver why not just normal dc power supply
... In this circuit 10 series leds are drivin by 30vdc power source so that each diode have 3vdc across it It seems that every thing in order right!! However driving led is not that simple The problem is that leds are tempreture sensitive if tempreture increase Each led will now ask lower forward volta ...
... In this circuit 10 series leds are drivin by 30vdc power source so that each diode have 3vdc across it It seems that every thing in order right!! However driving led is not that simple The problem is that leds are tempreture sensitive if tempreture increase Each led will now ask lower forward volta ...
Tap 128- 2: How many bulbs will a capacitor light
... Tap 128- 2: How many bulbs will a capacitor light? By charging a 10 000 F capacitor to different voltages and discharging into various numbers of small light bulbs, suggest a relationship between capacitor voltage and the energy it stores. ...
... Tap 128- 2: How many bulbs will a capacitor light? By charging a 10 000 F capacitor to different voltages and discharging into various numbers of small light bulbs, suggest a relationship between capacitor voltage and the energy it stores. ...
Module 1
... Write the equations to determine the output voltage vo(t). Simplify these equations for the symmetrical square wave with zero average value and obtain the solution. (b) For voltage square wave input of part (a), sketch the output waveform vo(t) for the following cases (i) RC << T (ii) RC T and (ii ...
... Write the equations to determine the output voltage vo(t). Simplify these equations for the symmetrical square wave with zero average value and obtain the solution. (b) For voltage square wave input of part (a), sketch the output waveform vo(t) for the following cases (i) RC << T (ii) RC T and (ii ...
Electronics Lesson 03 - School of Engineering and Computer
... ELECTRONICS OHM’S LAW & RESISTANCE. ...
... ELECTRONICS OHM’S LAW & RESISTANCE. ...
Ham Radio – General Exam – Study Notes
... Max range on frequency just below MUF, short range just above LUF UV and X-rays take 8 minutes to arrive, coronal mass ejections (CMEs) take 20-40 hours A two tone linearity test uses two non-harmonically related audio tones Q-Signals and Prosigns QRP – Low power operation, ~ 5 watts on HF ...
... Max range on frequency just below MUF, short range just above LUF UV and X-rays take 8 minutes to arrive, coronal mass ejections (CMEs) take 20-40 hours A two tone linearity test uses two non-harmonically related audio tones Q-Signals and Prosigns QRP – Low power operation, ~ 5 watts on HF ...
RLC Circuit SP222
... is then moved to the position labeled 2, the charge on one plate of the capacitor will flow to the other, through the resistor and the inductor. If the resistance in the circuit is not too large, the capacitor will become charged again as a result of this flow, but the magnitude of the charge on eac ...
... is then moved to the position labeled 2, the charge on one plate of the capacitor will flow to the other, through the resistor and the inductor. If the resistance in the circuit is not too large, the capacitor will become charged again as a result of this flow, but the magnitude of the charge on eac ...
June 2007 - Vicphysics
... Motion is one and two dimensions • analyse uniform circular motion of an object in a horizontal plane; • analyse relative velocity of objects along a straight line and in two dimensions; • distinguish between stationary (inertial) frames of reference and frames of reference that are moving at consta ...
... Motion is one and two dimensions • analyse uniform circular motion of an object in a horizontal plane; • analyse relative velocity of objects along a straight line and in two dimensions; • distinguish between stationary (inertial) frames of reference and frames of reference that are moving at consta ...
ECT Practical 4 - Series Resonant Circuit - NetLab
... calculated using the equation (1). As can be noticed the resonant frequency does not depend on the resistance value. ...
... calculated using the equation (1). As can be noticed the resonant frequency does not depend on the resistance value. ...
Electromagnetic Induction
... simple system. The function generator produces a sinusoidal current which causes a varying field inside one of a pair of large mounted coils. A smaller coil on a pivoting mount is centered in the larger coil that is being driven. The scope is used to measure the induced voltage Vs(t) and the voltage ...
... simple system. The function generator produces a sinusoidal current which causes a varying field inside one of a pair of large mounted coils. A smaller coil on a pivoting mount is centered in the larger coil that is being driven. The scope is used to measure the induced voltage Vs(t) and the voltage ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""