a voltage-controlled dstatcom for power-quality
... Point of Common Coupling (PCC) through an inductance, which could be a filter inductance or the leakage inductance of the coupling transformer, 1. The DC side of the converter is connected to a DC capacitor, which carries the input ripple current of the converter and is the main reactive energy stor ...
... Point of Common Coupling (PCC) through an inductance, which could be a filter inductance or the leakage inductance of the coupling transformer, 1. The DC side of the converter is connected to a DC capacitor, which carries the input ripple current of the converter and is the main reactive energy stor ...
High Efficiency Monolithic DC
... Feedback circuit, simply compare output voltage and an external reference voltage and increase output voltage if less and vice versa. This can be implemented by increasing duty-cycle in PWM type, or increasing output capacitor charging time in switched capacitor type. Feedback is also often used a ...
... Feedback circuit, simply compare output voltage and an external reference voltage and increase output voltage if less and vice versa. This can be implemented by increasing duty-cycle in PWM type, or increasing output capacitor charging time in switched capacitor type. Feedback is also often used a ...
LM78S40 Universal Switching Regulator Subsystem
... The LM78S40 is a monolithic regulator subsystem consisting of all the active building blocks necessary for switching regulator systems. The device consists of a temperature compensated voltage reference, a duty-cycle controllable oscillator with an active current limit circuit, an error amplifier, h ...
... The LM78S40 is a monolithic regulator subsystem consisting of all the active building blocks necessary for switching regulator systems. The device consists of a temperature compensated voltage reference, a duty-cycle controllable oscillator with an active current limit circuit, an error amplifier, h ...
m High-precision CD drive, high-quality CD tray, and
... Dedicated CD Player with high-precision drive — High-quality disc tray made from extruded aluminum, combined with ultra quiet and smooth loading mechanism. Processor section features further refined MDS++ type D/A converters. Fully separate transport and processor section, with coaxial and optical ...
... Dedicated CD Player with high-precision drive — High-quality disc tray made from extruded aluminum, combined with ultra quiet and smooth loading mechanism. Processor section features further refined MDS++ type D/A converters. Fully separate transport and processor section, with coaxial and optical ...
Heater Controls & Components
... International Agency for Research on Cancer (IARC) as a possible human carcinogen (Group 2B). Exposure to RCF may be hazardous to your health. Under normal operating conditions, exposure should not occur. If maintenance is to be performed on this equipment, or if exposure to RCF otherwise occurs, th ...
... International Agency for Research on Cancer (IARC) as a possible human carcinogen (Group 2B). Exposure to RCF may be hazardous to your health. Under normal operating conditions, exposure should not occur. If maintenance is to be performed on this equipment, or if exposure to RCF otherwise occurs, th ...
AN ADVANCED POWER ELECTRONICS INTERFACE FOR
... Fig.4. Space Vector Representation D. DC-AC Three-Phase Inverter DC to AC converter is called as an Inverter. Inverter generates required voltage or frequency by operate it at proper switching control technique. For high power applications three-phase inverters are commonly used [9]. Three half-brid ...
... Fig.4. Space Vector Representation D. DC-AC Three-Phase Inverter DC to AC converter is called as an Inverter. Inverter generates required voltage or frequency by operate it at proper switching control technique. For high power applications three-phase inverters are commonly used [9]. Three half-brid ...
Series 1654 - Wilmore Electronics
... The Model 1654 rack-mount inverter provides 1000 volt-amperes of 120-Vac, 60-Hz output power in only 3.5 inches of vertical rack space. Standard versions allow operation from 24-Vdc, 48-Vdc or 130-Vdc battery sources. The well-regulated, frequency-stable quasi-sinewave output is well-suited for powe ...
... The Model 1654 rack-mount inverter provides 1000 volt-amperes of 120-Vac, 60-Hz output power in only 3.5 inches of vertical rack space. Standard versions allow operation from 24-Vdc, 48-Vdc or 130-Vdc battery sources. The well-regulated, frequency-stable quasi-sinewave output is well-suited for powe ...
Driver Product Portfolio - Supreme Components International
... • Limited to narrow line range (as are all TRIAC or Phase Cut dimming products) • Work with broad range of dimmers. ...
... • Limited to narrow line range (as are all TRIAC or Phase Cut dimming products) • Work with broad range of dimmers. ...
MAX1637 Miniature, Low-Voltage, Precision Step-Down Controller General Description
... adapted to meet a wide range of applications where a 5V or lower supply is available. The components listed in Table 1 represent a good set of trade-offs among cost, size, and efficiency, while staying within the worstcase specification limits for stress-related parameters such as capacitor ripple c ...
... adapted to meet a wide range of applications where a 5V or lower supply is available. The components listed in Table 1 represent a good set of trade-offs among cost, size, and efficiency, while staying within the worstcase specification limits for stress-related parameters such as capacitor ripple c ...
LED Resistor Calculation
... A typical LED can pass 30 –40 mA current without destroying the device. Normal current that gives sufficient brightness to a standard Red LED is 20 mA. But this may be 40 mA for Blue and White LEDs. A current limiting resistor is necessary to protect LED from excess current that is flowing through i ...
... A typical LED can pass 30 –40 mA current without destroying the device. Normal current that gives sufficient brightness to a standard Red LED is 20 mA. But this may be 40 mA for Blue and White LEDs. A current limiting resistor is necessary to protect LED from excess current that is flowing through i ...
Flashing light 10 Joules Quadro F12-SIL
... Additional mounting possible via external lugs (included). ...
... Additional mounting possible via external lugs (included). ...
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.