Tutorial4 clamper circuit
... 3. For practical clamping circuit Rs=100Ω, Rf=50Ω,R=100kΩ,C=2uf and symmetrical pulse wave signal of amplitude 20V and frequency 5kHz is applied at t=0. Draw first three cycle of output waveforms. [Ans:Vo=6.66v,-5.66v,3.28v] ANS: ...
... 3. For practical clamping circuit Rs=100Ω, Rf=50Ω,R=100kΩ,C=2uf and symmetrical pulse wave signal of amplitude 20V and frequency 5kHz is applied at t=0. Draw first three cycle of output waveforms. [Ans:Vo=6.66v,-5.66v,3.28v] ANS: ...
Chapter 5 - William Stallings, Data and Computer
... is conversion of analog data into digital data which can then: ...
... is conversion of analog data into digital data which can then: ...
Total Solution for Energy Efficient Home Appliance Power
... protection functions for abnormal conditions. Fault causal timing protection, gate expand limit protection, and RES dropping protection are used for load change. LPC and RES pins’ open/short protection is provided to prevent fault operation of the controller when resistors connected to LPC or RES pi ...
... protection functions for abnormal conditions. Fault causal timing protection, gate expand limit protection, and RES dropping protection are used for load change. LPC and RES pins’ open/short protection is provided to prevent fault operation of the controller when resistors connected to LPC or RES pi ...
Presentation - TI Training
... This is the typical back-scatter amplitude modulation from the RX as it is seen on the TX coil. This would be a typical WPC message packet from the RX, perhaps telling the TX to send more power. This is triggered from the RX signal so that the TX amplitude modulation is easy to view. Remember when c ...
... This is the typical back-scatter amplitude modulation from the RX as it is seen on the TX coil. This would be a typical WPC message packet from the RX, perhaps telling the TX to send more power. This is triggered from the RX signal so that the TX amplitude modulation is easy to view. Remember when c ...
design_review - ECE Senior Design
... supply. We use a low-resistance sense resistor and amplifier to measure the sense voltage drop. We’ve begun characterization of this circuit on a mix of breadboard and PCB. Printed/No Lead board would mean better components. No one would be impressed, but we could turn in what we have and meet the b ...
... supply. We use a low-resistance sense resistor and amplifier to measure the sense voltage drop. We’ve begun characterization of this circuit on a mix of breadboard and PCB. Printed/No Lead board would mean better components. No one would be impressed, but we could turn in what we have and meet the b ...
single phase to three phase power conversion using pwm technique
... 12V power supply when the device is off. Because the power for the driver is supplied from the low voltage source, the power consumed to drive the gate is small. When the driver is given the signal to turn on the high side device, the gate of the MOSFET has an extra boost in charge from the bootstra ...
... 12V power supply when the device is off. Because the power for the driver is supplied from the low voltage source, the power consumed to drive the gate is small. When the driver is given the signal to turn on the high side device, the gate of the MOSFET has an extra boost in charge from the bootstra ...
Document
... converter is known as an important power quality issue in distribution networks. From industry point of view complying with international standards is mandatory, how ever cost and efficiency are two other important features, which need to be considered in order to be competitive in the market. There ...
... converter is known as an important power quality issue in distribution networks. From industry point of view complying with international standards is mandatory, how ever cost and efficiency are two other important features, which need to be considered in order to be competitive in the market. There ...
投影片 1 - stust.edu.tw
... stage to achieve voltage regulation function, and is hardly used to less that half of the full range due to the required gas breakdown voltage level The PWM control can fulfill the full load range conditions. However, a small pulse width tends to a discontinuous load current or leading load current ...
... stage to achieve voltage regulation function, and is hardly used to less that half of the full range due to the required gas breakdown voltage level The PWM control can fulfill the full load range conditions. However, a small pulse width tends to a discontinuous load current or leading load current ...
ECE445 Projects
... The transfer function of the controller, with the particular pole and zero values determined. A Matlab Bode plot the loop gain. (Use the Matlab MARGIN command.) A Matlab Bode plot of the open and closed loop audio-susceptibility (on the same plot). A Matlab Bode plot of the open and closed loop outp ...
... The transfer function of the controller, with the particular pole and zero values determined. A Matlab Bode plot the loop gain. (Use the Matlab MARGIN command.) A Matlab Bode plot of the open and closed loop audio-susceptibility (on the same plot). A Matlab Bode plot of the open and closed loop outp ...
Rated at 6-kW output power, it is based on the new three
... t On-module speed-regulated fans t Internal temperature monitoring ...
... t On-module speed-regulated fans t Internal temperature monitoring ...
Ultra Fast Acting Electronic Circuit Breaker
... The project is designed to shut down the power supply when it is overloaded. Conventional circuit breaker like MCB based is on thermal bimetal lever trip mechanism. It is very slow and the trip time is dependent upon the percentage of overload. This project senses the current passing through a serie ...
... The project is designed to shut down the power supply when it is overloaded. Conventional circuit breaker like MCB based is on thermal bimetal lever trip mechanism. It is very slow and the trip time is dependent upon the percentage of overload. This project senses the current passing through a serie ...
ppt - MakeItOrTakeIt
... The three control lines are referred to as EN, RS, and RW EN=Enable (used to tell the LCD that you are sending it data) RS=Register Select (When RS is low (0), data is treated as a command) (When RS is High(1), data being sent is text data ) ...
... The three control lines are referred to as EN, RS, and RW EN=Enable (used to tell the LCD that you are sending it data) RS=Register Select (When RS is low (0), data is treated as a command) (When RS is High(1), data being sent is text data ) ...
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 ...
... 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 ...
WELDING INVERTERS AT ARCRAFT PLASMA AC Line voltage
... AC Line voltage is taken as the input to the welding equipment. It is suitably RFI/EMI rectified. This rectified voltage is filtered to make it pure DC. This DC voltage is taken as the input to the switching device ...
... AC Line voltage is taken as the input to the welding equipment. It is suitably RFI/EMI rectified. This rectified voltage is filtered to make it pure DC. This DC voltage is taken as the input to the switching device ...
Deltaweld® Series
... operator to turn power source on/off from a distance. Remote voltage control allows operator to change voltage from feeder. ...
... operator to turn power source on/off from a distance. Remote voltage control allows operator to change voltage from feeder. ...
Synchronous operation of five-phase converters in linear modulation
... presented in Figs. 9-10, is characterized by the fractional ratio between the switching frequency and fundamental frequency, equal to 1500/40=37.5, but the phase-to-neutral voltage has quarter-wave symmetry in this control mode too. During synthesis of algorithms of synchronized PWM for five-phase i ...
... presented in Figs. 9-10, is characterized by the fractional ratio between the switching frequency and fundamental frequency, equal to 1500/40=37.5, but the phase-to-neutral voltage has quarter-wave symmetry in this control mode too. During synthesis of algorithms of synchronized PWM for five-phase i ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.