Line / Load Reactors
... All reactors are compensated for the additional currents and high frequencies caused by the presence of harmonics. The reactor fundamental current rating indicates the typical full load fundamental current and is also the fundamental current on which the inductance is based to provide the desired ci ...
... All reactors are compensated for the additional currents and high frequencies caused by the presence of harmonics. The reactor fundamental current rating indicates the typical full load fundamental current and is also the fundamental current on which the inductance is based to provide the desired ci ...
BP5718A12
... The capacitance of C3 should be 10µF, since an excessively small value will result in malfunction. The activation time is defined as: t(sec)=R2�C3�ln[1-17/(VI-30µA�R2)], where VI is the DC voltage after smoothing. The resistance of R2 should be 1.5MΩ, since an excessively small value will result in ...
... The capacitance of C3 should be 10µF, since an excessively small value will result in malfunction. The activation time is defined as: t(sec)=R2�C3�ln[1-17/(VI-30µA�R2)], where VI is the DC voltage after smoothing. The resistance of R2 should be 1.5MΩ, since an excessively small value will result in ...
Static Synchronous Compensator (STATCOM) for the
... Compensator is a combination of voltage source converter in parallel with the capacitor which acts as a DC energy source link tied to the transmission line. Almost Sinusoidal current of varying magnitude at the PCC (point of connection) is injected by the STATCOM. This injected current is almost in ...
... Compensator is a combination of voltage source converter in parallel with the capacitor which acts as a DC energy source link tied to the transmission line. Almost Sinusoidal current of varying magnitude at the PCC (point of connection) is injected by the STATCOM. This injected current is almost in ...
low power low voltage operation of operational amplifier
... management is becoming an increasingly urgent problem for almost every category of design. Some key principles of low power design are using of lowest possible supply voltage, using the smallest geometry, highest frequency device but operating them at lowest possible frequency, power management by d ...
... management is becoming an increasingly urgent problem for almost every category of design. Some key principles of low power design are using of lowest possible supply voltage, using the smallest geometry, highest frequency device but operating them at lowest possible frequency, power management by d ...
PAT testing IT equipment
... Functional earthed equipment (ITE) Some IT products have a PSU that appears to be an earthed Class 1 device with an IEC 3 pin socket, but when PAT tested as such, the device fails the bond / continuity test when the PAT tester’s bond lead is attached to the only exposed metalwork visible; the sleeve ...
... Functional earthed equipment (ITE) Some IT products have a PSU that appears to be an earthed Class 1 device with an IEC 3 pin socket, but when PAT tested as such, the device fails the bond / continuity test when the PAT tester’s bond lead is attached to the only exposed metalwork visible; the sleeve ...
to V +
... Initial Offset Voltage The DC voltge that must be applied between the input terminals of the amplifier to force the quiescent dc output voltage to zero. ...
... Initial Offset Voltage The DC voltge that must be applied between the input terminals of the amplifier to force the quiescent dc output voltage to zero. ...
RF6280 Preliminary
... DC-DC buck converter operation involves the stepping down of a higher battery voltage to a lower output voltage by the alternate switching of a PFET and NFET pair through an external LC filter. The desired output voltage, together with the battery voltage, primarily determine the duty cycle of the P ...
... DC-DC buck converter operation involves the stepping down of a higher battery voltage to a lower output voltage by the alternate switching of a PFET and NFET pair through an external LC filter. The desired output voltage, together with the battery voltage, primarily determine the duty cycle of the P ...
Electrical Measurements
... voltage would be 2A.) Most function generators are designed to have an internal resistance of 50 Ω and maximum voltage amplitude of around 10 V. Generally they have a power output of at most a few watts. Certainly the most common a.c. source is the wall receptacle: 120 V at a frequency of 60 Hz. Tra ...
... voltage would be 2A.) Most function generators are designed to have an internal resistance of 50 Ω and maximum voltage amplitude of around 10 V. Generally they have a power output of at most a few watts. Certainly the most common a.c. source is the wall receptacle: 120 V at a frequency of 60 Hz. Tra ...
Trubitsyn, A., B. Pierquet, A. Hayman, and D.J. Perreault, “High-Efficiency, Grid-Tie Inverter for Photovoltaic Applications,” 2010 IEEE Energy Conversion Congress and Exposition , pp. 2803-2810, Sept. 2010.
... rapidly, and with it grows the demand for inverters to interface with the grid [1]–[3]. Multiple inverter system architectures exist, of which two are the most widely considered. The first approach involves a single grid-tie inverter connected to a series string of PV panels. There are at least two ...
... rapidly, and with it grows the demand for inverters to interface with the grid [1]–[3]. Multiple inverter system architectures exist, of which two are the most widely considered. The first approach involves a single grid-tie inverter connected to a series string of PV panels. There are at least two ...
Evaluates: MAX16819/MAX16820 MAX16820 Evaluation Kit General Description Features
... optional output capacitor C3. The EV kit provides surfacemount 0603 pads for a capacitor nominal value of 0.1µF. ...
... optional output capacitor C3. The EV kit provides surfacemount 0603 pads for a capacitor nominal value of 0.1µF. ...
CIRCUIT FUNCTION AND BENEFITS
... minimizing charge injection effects. Pedestal error is also reduced by the compensation network RC and CC. This compensation network also reduces the hold-time glitch, while optimizing the acquisition time. The circuit in Figure 1 gives the following results: droop rate of 2 mV/ms, pedestal error of ...
... minimizing charge injection effects. Pedestal error is also reduced by the compensation network RC and CC. This compensation network also reduces the hold-time glitch, while optimizing the acquisition time. The circuit in Figure 1 gives the following results: droop rate of 2 mV/ms, pedestal error of ...
LM323 pdf
... The LM323,A are monolithic integrated circuits which supply a fixed positive 5.0 V output with a load driving capability in excess of 3.0 A. These three–terminal regulators employ internal current limiting, thermal shutdown, and safe–area compensation. The A–suffix is an improved device with superio ...
... The LM323,A are monolithic integrated circuits which supply a fixed positive 5.0 V output with a load driving capability in excess of 3.0 A. These three–terminal regulators employ internal current limiting, thermal shutdown, and safe–area compensation. The A–suffix is an improved device with superio ...
• High-precision CD drive • High-quality CD tray and
... paths ● Balanced output phase selector ● Digital interface with USB input ● Transport outputs and digital inputs allow insertion of DG-48 into signal path for sound field correction ● Numeric indication of sampling frequency ...
... paths ● Balanced output phase selector ● Digital interface with USB input ● Transport outputs and digital inputs allow insertion of DG-48 into signal path for sound field correction ● Numeric indication of sampling frequency ...
MAX1954A Low-Cost, Current-Mode PWM Buck Controller with Foldback Current Limit General Description
... open-loop comparator compares the integrated voltagefeedback signal against the amplified current-sense signal plus the slope compensation ramp, which is summed into the main PWM comparator to preserve inner-loop stability and eliminate inductor staircasing. At each rising edge of the internal clock ...
... open-loop comparator compares the integrated voltagefeedback signal against the amplified current-sense signal plus the slope compensation ramp, which is summed into the main PWM comparator to preserve inner-loop stability and eliminate inductor staircasing. At each rising edge of the internal clock ...
Q-Astec - First transient power converter using switched
... A Division of Emerson Network Power. ...
... A Division of Emerson Network Power. ...
ADC / DAC - Select a Department
... The digital inputs could be TTL voltages which close the switches on a logical 1 and leave it grounded for a logical 0. This is illustrated for 4 bits, but can be extended to any number with just the resistance values R and 2R. ...
... The digital inputs could be TTL voltages which close the switches on a logical 1 and leave it grounded for a logical 0. This is illustrated for 4 bits, but can be extended to any number with just the resistance values R and 2R. ...
Download T2400 Datasheet
... monitoring of generators and power transmissions. A typical application is to use one of the overcurrent functions to trip the generator circuit breaker, and the other overcurrent function to trip a non-essential consumer. The T2400 consists of two overcurrent circuits with similar current settings ...
... monitoring of generators and power transmissions. A typical application is to use one of the overcurrent functions to trip the generator circuit breaker, and the other overcurrent function to trip a non-essential consumer. The T2400 consists of two overcurrent circuits with similar current settings ...
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.