Perception of mid frequency and high frequency intermodulation
... This music typically has fundamentals in the range of 100Hz to 1000Hz, with substantial high-order harmonics. The mix of fundamentals and harmonics are related by common musical intervals. A sweep signal consisting of two or more pitches was chosen, where the pitch intervals was held constant. Preli ...
... This music typically has fundamentals in the range of 100Hz to 1000Hz, with substantial high-order harmonics. The mix of fundamentals and harmonics are related by common musical intervals. A sweep signal consisting of two or more pitches was chosen, where the pitch intervals was held constant. Preli ...
R225-90-21
... when replacement is needed. Even in the real world of ongoing maintenance and occasional system or component failures, objectives of minimizing outage time and limiting equipment failures can be realized. The use of more simple, basic, modular products increases the potential for benefits in product ...
... when replacement is needed. Even in the real world of ongoing maintenance and occasional system or component failures, objectives of minimizing outage time and limiting equipment failures can be realized. The use of more simple, basic, modular products increases the potential for benefits in product ...
European SR Engine for Navi
... Passive: converts directly sound to electrical energy, active: needs additional energy source (battery, phantom power) electromagnetic and electro-dynamic microphones: ribbon - duralumin ribbon moving in permanent magnetic field moving-coil- inverse of loudspeaker, bigger than ribbon, thus highe ...
... Passive: converts directly sound to electrical energy, active: needs additional energy source (battery, phantom power) electromagnetic and electro-dynamic microphones: ribbon - duralumin ribbon moving in permanent magnetic field moving-coil- inverse of loudspeaker, bigger than ribbon, thus highe ...
STEVAL-ISA012V1
... auxiliary SMPS for high voltage street lighting, where the input voltage can range from 90 VAC to 450 VAC and 1000 V Power MOSFETs are currently used. ...
... auxiliary SMPS for high voltage street lighting, where the input voltage can range from 90 VAC to 450 VAC and 1000 V Power MOSFETs are currently used. ...
A DESIGNERS GUIDE TO THE L200 VOLTAGE REGULATOR
... current flowing through T1 and, in any case, this should not exceed the maximum current through R2 under automatic operation. The circuit shown with a small modification can also be used for dimmers other than in a car. Fig. 15 shows the modification needed. The zener diode should have a VF ≥ 2.5 V ...
... current flowing through T1 and, in any case, this should not exceed the maximum current through R2 under automatic operation. The circuit shown with a small modification can also be used for dimmers other than in a car. Fig. 15 shows the modification needed. The zener diode should have a VF ≥ 2.5 V ...
AN-2126 LM5046 Based Eighth Brick
... maintaining constant switching frequency. The ZVS feature is highly desirable as it reduces both the switching losses and EMI emissions. Figure 1 illustrates the circuit arrangement for the PSFB topology. The power transfer mode of the PSFB topology is similar to the hard switching full-bridge i.e., ...
... maintaining constant switching frequency. The ZVS feature is highly desirable as it reduces both the switching losses and EMI emissions. Figure 1 illustrates the circuit arrangement for the PSFB topology. The power transfer mode of the PSFB topology is similar to the hard switching full-bridge i.e., ...
Medium Voltage Switchgear Condition Assessments
... Power Distribution Division Order No SE_AS_1003e_P2310_switchgear_Audits Printed in Germany Printed on elementary chlorine-free bleached paper. ...
... Power Distribution Division Order No SE_AS_1003e_P2310_switchgear_Audits Printed in Germany Printed on elementary chlorine-free bleached paper. ...
PDF - This Chapter
... To determine which transceivers, adapters, and cables are supported by this switch, see http://www.cisco.com/ c/en/us/support/interfaces-modules/transceiver-modules/products-device-support-tables-list.html. To see the transceiver specifications and installation information, see http://www.cisco.com/ ...
... To determine which transceivers, adapters, and cables are supported by this switch, see http://www.cisco.com/ c/en/us/support/interfaces-modules/transceiver-modules/products-device-support-tables-list.html. To see the transceiver specifications and installation information, see http://www.cisco.com/ ...
Amp Enable Outputs
... the motor I-variable Ix25. All flag inputs must be shorted to the zero-volt reference voltage for the circuit, allowing current to flow through the LEDs in the opto-isolator, in order to be considered in a zero state. The voltage circuit can be configured in various ways utilizing PMAC PC jumpers E8 ...
... the motor I-variable Ix25. All flag inputs must be shorted to the zero-volt reference voltage for the circuit, allowing current to flow through the LEDs in the opto-isolator, in order to be considered in a zero state. The voltage circuit can be configured in various ways utilizing PMAC PC jumpers E8 ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... The Photovoltaic (PV) power system is considered to be one of the reliable technologies to reach the energy demand. It is well known fact that, solar energy is abundantly available and it has to be utilized for compensating the electricity crisis. Standalone PV systems are extensively employed in th ...
... The Photovoltaic (PV) power system is considered to be one of the reliable technologies to reach the energy demand. It is well known fact that, solar energy is abundantly available and it has to be utilized for compensating the electricity crisis. Standalone PV systems are extensively employed in th ...
LIMITATIONS OF A STATIC VAr COMPENSATOR (SVC) WITH
... waveform, case when the converter can be called as active filter. Because the main difference between the cases i) and ii) lies in the pattern of the PWM of the switches, the voltage drop across the switches must “cause the generation” of the desired and useful current harmonics (opposed to a sinuso ...
... waveform, case when the converter can be called as active filter. Because the main difference between the cases i) and ii) lies in the pattern of the PWM of the switches, the voltage drop across the switches must “cause the generation” of the desired and useful current harmonics (opposed to a sinuso ...
DC786 - LTC4260CGN Evaluation Kit Quick Start Guide
... large GND turrets are provided to accommodate multiple ground connections of meters, power supplies, loads, etc., and there is no need for load current to be routed through the circuit board. A clear line of demarcation separates +48V copper from ground, passing under R9, CIN, Z1, CSNUB, R27, R1, U1 ...
... large GND turrets are provided to accommodate multiple ground connections of meters, power supplies, loads, etc., and there is no need for load current to be routed through the circuit board. A clear line of demarcation separates +48V copper from ground, passing under R9, CIN, Z1, CSNUB, R27, R1, U1 ...
Current ramping an ignition coil primary not only opens up
... just be passing through 6 amps when the coil needs to fire. This type of system avoids the heat in the power transistor caused by it being used as a current-limiter. The diagnostic information is shown by the shape of the waveform and your ability to measure the amount of primary current at the firi ...
... just be passing through 6 amps when the coil needs to fire. This type of system avoids the heat in the power transistor caused by it being used as a current-limiter. The diagnostic information is shown by the shape of the waveform and your ability to measure the amount of primary current at the firi ...
Current Transducer ITZ 10000-SB FLEX ULTRASTAB I = 10000 A
... In this case, the over current trip level is set to 120 % of IPN DC. The secondary current is tracked until the primary AC peak exceeds this trip level. Then, the rack electronics shut down the measuring circuit and wait until the primary AC peak becomes lower than the set trip level. - High freque ...
... In this case, the over current trip level is set to 120 % of IPN DC. The secondary current is tracked until the primary AC peak exceeds this trip level. Then, the rack electronics shut down the measuring circuit and wait until the primary AC peak becomes lower than the set trip level. - High freque ...
Single-Ended “Big Iron” Guitar Amplifier Ray Lyons
... sonically affects the high frequencies: the larger the fractional leakage inductance, the more loss in high frequency output. These measurements would then be quantitative evidence for the reason the Handwound Transform sounds so much better than the other two transformers. However, the size and wei ...
... sonically affects the high frequencies: the larger the fractional leakage inductance, the more loss in high frequency output. These measurements would then be quantitative evidence for the reason the Handwound Transform sounds so much better than the other two transformers. However, the size and wei ...
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.