90523-exm-06 - Learning on the Loop
... explain how this capacitor voltage will relate to the voltage of the source. ...
... explain how this capacitor voltage will relate to the voltage of the source. ...
NTE Series - power, Murata
... 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; ...
... 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; ...
Quiz 4, EE 303, Spring 2002, Dr
... 1. (34 pts) A generator is connected to a transmission line through a transformer having a rated turns ratio (ratio of line-to-line voltages) of 20kV (generator side) to 100kV (transmission line side). The generator has a per unit reactance of 0.08 pu on a 19 kV, 50 MVA base. Select the base voltage ...
... 1. (34 pts) A generator is connected to a transmission line through a transformer having a rated turns ratio (ratio of line-to-line voltages) of 20kV (generator side) to 100kV (transmission line side). The generator has a per unit reactance of 0.08 pu on a 19 kV, 50 MVA base. Select the base voltage ...
AL4201250256
... They can be used as a good way to control the voltage in and around the point of connection by injecting active or reactive current into the system. 2. Objective of the Combined Series-Series Controllers A combined series-series controller may have two configurations. One configuration consists of s ...
... They can be used as a good way to control the voltage in and around the point of connection by injecting active or reactive current into the system. 2. Objective of the Combined Series-Series Controllers A combined series-series controller may have two configurations. One configuration consists of s ...
PIR-2 spec sheet.indd - Solid State Instruments
... interval pulses. Other applications include interfaces between utility metering devices and customer- owned energy control systems, demand recorder applications, and supervisory control systems (SCADA) interfaces. A bright yellow LED lamp indicate the systems status at all times thus allowing a rapi ...
... interval pulses. Other applications include interfaces between utility metering devices and customer- owned energy control systems, demand recorder applications, and supervisory control systems (SCADA) interfaces. A bright yellow LED lamp indicate the systems status at all times thus allowing a rapi ...
The Op Amp – Inverting Mode, dc
... 4. Why do we need an amplifier in the system ? 5. What is the voltage gain of an amplifier ? 6. What is the gain of an amplifier which has input voltage of 2V and output voltage of 8V ? 7. What does an amplifier do to the frequency of the signal ? Tutorial Questions page 72 Qu 1 to 6 ...
... 4. Why do we need an amplifier in the system ? 5. What is the voltage gain of an amplifier ? 6. What is the gain of an amplifier which has input voltage of 2V and output voltage of 8V ? 7. What does an amplifier do to the frequency of the signal ? Tutorial Questions page 72 Qu 1 to 6 ...
Fuzzy Logic – Based Approach for Adaptive Hysteresis Band
... T further reduce the harmonics, the active filter was simulated with fuzzy adaptive hysteresis band current control and fuzzy logic-based DC voltage control. Fig.11 shows the performance characteristics of the active power filter with the fuzzy-adaptive control scheme. The performance of the active ...
... T further reduce the harmonics, the active filter was simulated with fuzzy adaptive hysteresis band current control and fuzzy logic-based DC voltage control. Fig.11 shows the performance characteristics of the active power filter with the fuzzy-adaptive control scheme. The performance of the active ...
An interface board for developing control loops in power electronics
... capacitive isolators providing also voltage level shifting (up to 5 V) and higher I/O current capability (up to 15 mA per I/O). I/O capability is limited by the selected platform. On one ChipKit Uno32 the original microcontroller was replaced with a more powerful dsPIC more suitable for controlling ...
... capacitive isolators providing also voltage level shifting (up to 5 V) and higher I/O current capability (up to 15 mA per I/O). I/O capability is limited by the selected platform. On one ChipKit Uno32 the original microcontroller was replaced with a more powerful dsPIC more suitable for controlling ...
gain - Bek Varcoe
... Mic Level vs Line Level In order to set the correct gain coming in to your console, you might want to think about whether your input source is at mic level or "line level". ...
... Mic Level vs Line Level In order to set the correct gain coming in to your console, you might want to think about whether your input source is at mic level or "line level". ...
Sedona Series D (2010)
... 8. LEVEL Control The level control will match the amplifiers sensitivity to the source units signal voltage. The Operating range is 200mV minimum to 5V maximum. This is NOT a volume control! ...
... 8. LEVEL Control The level control will match the amplifiers sensitivity to the source units signal voltage. The Operating range is 200mV minimum to 5V maximum. This is NOT a volume control! ...
PDF
... The pulsers are designed to provide broadband excitation for maximum broadband transducer performance. Pulser architecture ensures fast rise times that when coupled with instrument selectable energy and damping options optimize the excitation pulse for the frequency of inspection. Pulse stability is ...
... The pulsers are designed to provide broadband excitation for maximum broadband transducer performance. Pulser architecture ensures fast rise times that when coupled with instrument selectable energy and damping options optimize the excitation pulse for the frequency of inspection. Pulse stability is ...
Transient Stability
... and events. Typical transient stability studies include identifying critical fault clearing time, motor dynamic acceleration/reacceleration, load shedding schedule, fast bus transfer timing, excitation/AVR system parameter tuning, governor parameter tuning, voltage/frequency response and stability, ...
... and events. Typical transient stability studies include identifying critical fault clearing time, motor dynamic acceleration/reacceleration, load shedding schedule, fast bus transfer timing, excitation/AVR system parameter tuning, governor parameter tuning, voltage/frequency response and stability, ...
Efficiency of an Electric Motor
... should be simply the work done against this constant frictional force. Thus, the energy lost to friction should only depend on how many turns the motor shaft makes. Since the number of turns required to raise the weight the fixed distance between the floor and the table top is fixed, the energy lost ...
... should be simply the work done against this constant frictional force. Thus, the energy lost to friction should only depend on how many turns the motor shaft makes. Since the number of turns required to raise the weight the fixed distance between the floor and the table top is fixed, the energy lost ...
Article
... However, the extensive use of power electronics based equipment and non-linear loads at PCC generate harmonic currents, which may deteriorate the quality of power [3]-[5]. The widespread increase of non-linear loads nowadays, significant amounts of harmonic currents are being injected into power sys ...
... However, the extensive use of power electronics based equipment and non-linear loads at PCC generate harmonic currents, which may deteriorate the quality of power [3]-[5]. The widespread increase of non-linear loads nowadays, significant amounts of harmonic currents are being injected into power sys ...
Adjustable LNB Power Supply Is DiSEqC Compatible
... Figure 1. Designed for the low-noise block in a satellite receiver, this DiSEqC-compatible power supply communicates data by toggling its supply voltage between 13V and 17V. The circuit shown also supports an emerging and more sophisticated communications bus called the DiSEqC standard (for Digital ...
... Figure 1. Designed for the low-noise block in a satellite receiver, this DiSEqC-compatible power supply communicates data by toggling its supply voltage between 13V and 17V. The circuit shown also supports an emerging and more sophisticated communications bus called the DiSEqC standard (for Digital ...
Triple II Demand Instruments
... has a response time T, defined as the time for the demand function to change by 90% of the difference between the applied signal value and the initial demand value. For utility applications, the traditional value of T is 15 minutes for amp/kW demand, and 5-10 minutes for volt demand. The factory se ...
... has a response time T, defined as the time for the demand function to change by 90% of the difference between the applied signal value and the initial demand value. For utility applications, the traditional value of T is 15 minutes for amp/kW demand, and 5-10 minutes for volt demand. The factory se ...
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.