RL Circuits
... a perfect inductor (no resistance) will not produce a voltage across the inductor. The sign of the voltage across an inductor depends on the sign of dI/dt and not on the sign of the current. Figure 1 shows the relationship between the current and voltage for a resistor and in inductor. The arrow ind ...
... a perfect inductor (no resistance) will not produce a voltage across the inductor. The sign of the voltage across an inductor depends on the sign of dI/dt and not on the sign of the current. Figure 1 shows the relationship between the current and voltage for a resistor and in inductor. The arrow ind ...
Experiment 4
... Transformers are arguably the most universally applied pieces of electrical equipment. As such, they range in size from miniature units weighing ounces to huge units weighing tons. All transformers, however, exhibit the same basic properties. When mutual induction is permitted between two coils or w ...
... Transformers are arguably the most universally applied pieces of electrical equipment. As such, they range in size from miniature units weighing ounces to huge units weighing tons. All transformers, however, exhibit the same basic properties. When mutual induction is permitted between two coils or w ...
DN447 - A Complete Compact APD Bias Solution for a 10Gbits/s GPON System
... pin. The CTRL pin serves to override the internal reference. By tying this pin above 1.25V, the output voltage is regulated with the feedback at 1.25V. By externally setting the CTRL pin to a lower voltage, the feedback and the output voltage follow accordingly. The SHDN pin not only enables the con ...
... pin. The CTRL pin serves to override the internal reference. By tying this pin above 1.25V, the output voltage is regulated with the feedback at 1.25V. By externally setting the CTRL pin to a lower voltage, the feedback and the output voltage follow accordingly. The SHDN pin not only enables the con ...
Aalborg Universitet Multilevel Modular Converter for VSC-HVDC Transmission Applications: Control and
... Consider the upper multi-valve which requires NU submodules to be ON. If the current IOUT is positive (see Fig. 1), then turning on a sub-module will result in capacitor voltage increase. In that case, the NU sub-modules ranked lowest in voltage are turned on, so that they can be re-charged. If IOUT ...
... Consider the upper multi-valve which requires NU submodules to be ON. If the current IOUT is positive (see Fig. 1), then turning on a sub-module will result in capacitor voltage increase. In that case, the NU sub-modules ranked lowest in voltage are turned on, so that they can be re-charged. If IOUT ...
HMC679LC3C 数据资料DataSheet下载
... GHz. During normal operation, with the reset pin not asserted, the output toggles from its prior state on the positive edge of the clock. This results in a divide-bytwo function of the clock input. Asserting the reset pin forces the Q output low regardless of the clock edge state (asynchronous reset ...
... GHz. During normal operation, with the reset pin not asserted, the output toggles from its prior state on the positive edge of the clock. This results in a divide-bytwo function of the clock input. Asserting the reset pin forces the Q output low regardless of the clock edge state (asynchronous reset ...
Circuit Note CN-0197
... under noisy conditions, for example, when experiencing electromagnetic interference, the daisy-chain signals are shielded on an inner layer of the printed circuit board (PCB). Shielding is provided above and below by a VSS supply plane, which is connected to the VSS pin of the upper device in the ch ...
... under noisy conditions, for example, when experiencing electromagnetic interference, the daisy-chain signals are shielded on an inner layer of the printed circuit board (PCB). Shielding is provided above and below by a VSS supply plane, which is connected to the VSS pin of the upper device in the ch ...
1.1.3 Simple Digital Outputs Word Document | GCE AS/A
... The resistor is included to provide some protection to the LED and will be discussed in more detail in ET2. You will not be asked to perform any calculations involving this resistor in ET1 questions. Now when the output of the OR gate shown above is at Logic 0, (0V) there is no difference in voltage ...
... The resistor is included to provide some protection to the LED and will be discussed in more detail in ET2. You will not be asked to perform any calculations involving this resistor in ET1 questions. Now when the output of the OR gate shown above is at Logic 0, (0V) there is no difference in voltage ...
Quasar Electronics – www.QuasarElectronics.com
... The Stepper Motor Chopper Driver can be used with a power supply up to 36V, however, if the power supply voltage is above 25V a second power supply less than 26V is required to produce 5V for the logic. Connect the motor power supply negative wire to a COM terminal and positive wire to the Vs termin ...
... The Stepper Motor Chopper Driver can be used with a power supply up to 36V, however, if the power supply voltage is above 25V a second power supply less than 26V is required to produce 5V for the logic. Connect the motor power supply negative wire to a COM terminal and positive wire to the Vs termin ...
The dB in Communications
... The term dB or decibel is a relative unit of measurement used frequently in electronic communications to describe power gain or loss. Decibels are used to specify measured and calculated values in audio systems, microwave system gain calculations, satellite system linkbudget analysis, antenna power ...
... The term dB or decibel is a relative unit of measurement used frequently in electronic communications to describe power gain or loss. Decibels are used to specify measured and calculated values in audio systems, microwave system gain calculations, satellite system linkbudget analysis, antenna power ...
SolidStateKlystronModulators_1SPLColMet - Indico
... - A pulse transformer for 1.2 MW average power, 50Hz, has never been built: demagnetization of the core during “off-time” requires high negative voltages; - A HV solid state switch for 1.2 MW average power has never been built; • A modular approach, by placing several LP-SPL systems in parallel to i ...
... - A pulse transformer for 1.2 MW average power, 50Hz, has never been built: demagnetization of the core during “off-time” requires high negative voltages; - A HV solid state switch for 1.2 MW average power has never been built; • A modular approach, by placing several LP-SPL systems in parallel to i ...
PDF
... Modular multi level converters (MMC) are gaining importance day by day due to their inherent advantages of bidirectional capability, reduced switching loss. MMCs have become one of the best choices for electric vehicles (EV) and storage based electric vehicles as these converters have the ability of ...
... Modular multi level converters (MMC) are gaining importance day by day due to their inherent advantages of bidirectional capability, reduced switching loss. MMCs have become one of the best choices for electric vehicles (EV) and storage based electric vehicles as these converters have the ability of ...
Characteristic Study of Electronic Voltage Transformers` Accuracy on
... the standard system for electronic voltage transformer’s accuracy measuring on harmonics had been studied and found in this article. Then the preliminary measuring of accuracy on harmonics of different kinds of electronic voltage transformer has been done. And the test results have also been analyse ...
... the standard system for electronic voltage transformer’s accuracy measuring on harmonics had been studied and found in this article. Then the preliminary measuring of accuracy on harmonics of different kinds of electronic voltage transformer has been done. And the test results have also been analyse ...
Evaluates: MAX8600/MAX8601 MAX8601 Evaluation Kit General Description Features
... 4) Preset the variable 2A power supply to +5V. Turn off the power supply. Do not turn on the power supply until all connections are made. 5) Ensure that the 5V power supply is off. Do not turn on the power supply until all connections are made. 6) Connect the positive lead of the 2A power supply to ...
... 4) Preset the variable 2A power supply to +5V. Turn off the power supply. Do not turn on the power supply until all connections are made. 5) Ensure that the 5V power supply is off. Do not turn on the power supply until all connections are made. 6) Connect the positive lead of the 2A power supply to ...
4316M EC
... a) the EMO circuit should not include controls that enable it to be defeated or bypassed b) the each EMO actuator should be self-latching c) resetting the an EMO switch should not re-energize circuits, equipment, or subassemblies that create a hazard to personnel or the facility d) the EMO circuit s ...
... a) the EMO circuit should not include controls that enable it to be defeated or bypassed b) the each EMO actuator should be self-latching c) resetting the an EMO switch should not re-energize circuits, equipment, or subassemblies that create a hazard to personnel or the facility d) the EMO circuit s ...
Calculating power factor
... Zero phase angle due to in-phase Vtotal and Itotal . The lagging IL with respect to Vtotal is corrected by a leading IC . Note that the total current (Itotal) is in phase with the applied voltage (Vtotal), indicating a phase angle of near zero. This is no coincidence. Note that the lagging current, ...
... Zero phase angle due to in-phase Vtotal and Itotal . The lagging IL with respect to Vtotal is corrected by a leading IC . Note that the total current (Itotal) is in phase with the applied voltage (Vtotal), indicating a phase angle of near zero. This is no coincidence. Note that the lagging current, ...
IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)
... research to develop more powerful devices, not only to have lower switching losses, higher efficiency but also improve reliability. For this reason, power losses in the device must be put into consideration. The main contribution in this work is to verify that SiC high power diode having larger ener ...
... research to develop more powerful devices, not only to have lower switching losses, higher efficiency but also improve reliability. For this reason, power losses in the device must be put into consideration. The main contribution in this work is to verify that SiC high power diode having larger ener ...
B360614
... often leading to problems of power quality (PQ) [1]. At the same time, this equipment is typically equipped with microprocessor-based controllers, which are quite sensitive to deviations from the ideal sinusoidal line voltage. In such conditions, both electric utilities and end users of electric pow ...
... often leading to problems of power quality (PQ) [1]. At the same time, this equipment is typically equipped with microprocessor-based controllers, which are quite sensitive to deviations from the ideal sinusoidal line voltage. In such conditions, both electric utilities and end users of electric pow ...
Three Phase Transformers
... As can be seen, primary taps at 120-V and 208-V are available using terminals H2-H3 and H4 respectively. In commercial applications, 120-V is a common voltage level. This is typically obtained by splitting a 240-V winding. Alternatively, 120-V can be obtained from the line-toneutral voltage of a 208 ...
... As can be seen, primary taps at 120-V and 208-V are available using terminals H2-H3 and H4 respectively. In commercial applications, 120-V is a common voltage level. This is typically obtained by splitting a 240-V winding. Alternatively, 120-V can be obtained from the line-toneutral voltage of a 208 ...
Boost Converter Design
... Once the MOSFET has switched on, the MOSFET presents a small dc resistance between its Drain and Source terminals. This is the MOSFETs ‘Drain Source on resistance’ or Rdson. Again, this needs to be as low as possible. Now, MOSFET manufacturers reduce the ON resistance of the MOSFET by constructing ...
... Once the MOSFET has switched on, the MOSFET presents a small dc resistance between its Drain and Source terminals. This is the MOSFETs ‘Drain Source on resistance’ or Rdson. Again, this needs to be as low as possible. Now, MOSFET manufacturers reduce the ON resistance of the MOSFET by constructing ...
ECE Laboratory Equipment Proficiency
... •Auto-range: This facility enables the correct range of the digital multimeter to be selected so that the most significant digits are shown, i.e. a four-digit DMM would automatically select an appropriate range to display 1.234 mV instead of 0.012 V. Additionally it also prevent overloading, by ensu ...
... •Auto-range: This facility enables the correct range of the digital multimeter to be selected so that the most significant digits are shown, i.e. a four-digit DMM would automatically select an appropriate range to display 1.234 mV instead of 0.012 V. Additionally it also prevent overloading, by ensu ...
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.