IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)
... appliances such as in computers, monitors, televisions, audio sets and others . The high power non linear loads such as static power converter, arc furnace, adjustable speed drives etc and low power loads such as fax machine, computer, etc produce voltage fluctuations, har monic currents and an imba ...
... appliances such as in computers, monitors, televisions, audio sets and others . The high power non linear loads such as static power converter, arc furnace, adjustable speed drives etc and low power loads such as fax machine, computer, etc produce voltage fluctuations, har monic currents and an imba ...
Coupling modules - OCTO series Technical data 5.01-4
... 1 x 0.5 to 2.5mm2 with/without multicore cable end 1 x 4mm2 without multicore cable end 2 x 0.5 to 1.5mm2 with/without multicore cable end 2 x 2.5mm2 flexible without multicore cable end ...
... 1 x 0.5 to 2.5mm2 with/without multicore cable end 1 x 4mm2 without multicore cable end 2 x 0.5 to 1.5mm2 with/without multicore cable end 2 x 2.5mm2 flexible without multicore cable end ...
Alpha and Beta can be expressed in terms of a Damping Coefficient
... switch or inline with motor phase If sampled in leg of switch a time when all Switches are switched to ground must be allowed Leg sampling will not allow for 100% duty cycle operation Depending on worst case slew rate as much as 10% duty cycle might be lost Sampling in line with phase requires eithe ...
... switch or inline with motor phase If sampled in leg of switch a time when all Switches are switched to ground must be allowed Leg sampling will not allow for 100% duty cycle operation Depending on worst case slew rate as much as 10% duty cycle might be lost Sampling in line with phase requires eithe ...
Development Board EPC9006C - Rev. 3.0 Quick Start Guide
... critical components on a single board that can be easily connected into any existing converter. The EPC9006C development board is 2” x 1.5” and contains two EPC2007C eGaN FETs in a half bridge configuration using, the Texas Instruments LM5113 gate driver, supply and bypass capacitors. The board cont ...
... critical components on a single board that can be easily connected into any existing converter. The EPC9006C development board is 2” x 1.5” and contains two EPC2007C eGaN FETs in a half bridge configuration using, the Texas Instruments LM5113 gate driver, supply and bypass capacitors. The board cont ...
Class Discussion 2.2
... •Failure can occur by not using a resistor with the correct allowable power rating. ...
... •Failure can occur by not using a resistor with the correct allowable power rating. ...
Single Phase Bidirectional PWM Converter for Microgrid With
... In this method of modulation, several pulses per half-cycle are used. Instead of maintaining the width of all pulses, the width of each pulse is varised proportional to the amplitude of a sin-wave evaluated at the centre of the same pulse. By comparing a sinusoidal reference signal with a triangular ...
... In this method of modulation, several pulses per half-cycle are used. Instead of maintaining the width of all pulses, the width of each pulse is varised proportional to the amplitude of a sin-wave evaluated at the centre of the same pulse. By comparing a sinusoidal reference signal with a triangular ...
Lab 6 - PSU MNE
... hence, M.E.'s. The DC motor is still the preferred method of generating rotary motion, although the stepper motor is also very popular. Permanent magnet (PM) DC motors have the desirable attribute of linear speed versus torque. Under steady state conditions, torque T is linearly related to voltage V ...
... hence, M.E.'s. The DC motor is still the preferred method of generating rotary motion, although the stepper motor is also very popular. Permanent magnet (PM) DC motors have the desirable attribute of linear speed versus torque. Under steady state conditions, torque T is linearly related to voltage V ...
AI010 502 INDUSTRIALElectronics and Applications
... Inverters and voltage source inverters – series, parallel and bridge inverters – current source inverters – PWM inverters – D.C. chopper – step up and step down chopper – AC chopper: AC converters: – uninterrupted power supply (UPS) – ( circuit diagram approach), rectifier –– inverter – static trans ...
... Inverters and voltage source inverters – series, parallel and bridge inverters – current source inverters – PWM inverters – D.C. chopper – step up and step down chopper – AC chopper: AC converters: – uninterrupted power supply (UPS) – ( circuit diagram approach), rectifier –– inverter – static trans ...
Large Scale Solar PV Investment Potential in Ontario 2010-2025
... STATCOM • This device is typically model using a voltage source, neglecting dc voltage dynamics and losses; this is a rough approximation. • There are several applications of this type of converter, but most of them at distribution voltage levels (using IGBT technology). • Additional controls may b ...
... STATCOM • This device is typically model using a voltage source, neglecting dc voltage dynamics and losses; this is a rough approximation. • There are several applications of this type of converter, but most of them at distribution voltage levels (using IGBT technology). • Additional controls may b ...
The Design Process Abstraction & Synthesis
... • Voltage Range (Full Charge to Discharge) • Number of Cells Required • Battery Life (ie. mA Hr Capacity) ...
... • Voltage Range (Full Charge to Discharge) • Number of Cells Required • Battery Life (ie. mA Hr Capacity) ...
Effective Power Output Single Phase Inverter Design in
... frequently used topology for grid-connected singlephase PV systems, due to its capability to inject current to the grid with low harmonic content. However, its nature is not fully compatible with low power single-phase applications because the input voltage is commonly lower than the peak voltage of ...
... frequently used topology for grid-connected singlephase PV systems, due to its capability to inject current to the grid with low harmonic content. However, its nature is not fully compatible with low power single-phase applications because the input voltage is commonly lower than the peak voltage of ...
Pulse-Width-Modulation DC Chopper using LabView Software
... of dc motors to return energy back into the supply and this feature results in energy savings for transportation systems with frequent stops. Choppers are used in dc voltage regulators and also used, in conjunction with an inductor, to generate a dc current source, especially for the current source ...
... of dc motors to return energy back into the supply and this feature results in energy savings for transportation systems with frequent stops. Choppers are used in dc voltage regulators and also used, in conjunction with an inductor, to generate a dc current source, especially for the current source ...
The Pixie "micro-power Telegraph transceiver kit instructions
... from Harbor Freight again no problem there. It uses a 1N4001 as a varicap so should be able to set the CW offset with no problem. The transistors were 9018 I believe that is a S9018 and the output transistor was 8050 which I think also requires an S, S8050. I have not succeed in down loading a data ...
... from Harbor Freight again no problem there. It uses a 1N4001 as a varicap so should be able to set the CW offset with no problem. The transistors were 9018 I believe that is a S9018 and the output transistor was 8050 which I think also requires an S, S8050. I have not succeed in down loading a data ...
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.