Deuterium Triode Thyratron
... 5. The pulse width is measured on the discharge current waveform at the half peak current level. 6. For anode current pulse widths greater than 0.3 microseconds but less than 10 microseconds, a useful formula for estimating the allowable peak current is ib=ib0 (3/tp)Áת amps, where tp is the puls ...
... 5. The pulse width is measured on the discharge current waveform at the half peak current level. 6. For anode current pulse widths greater than 0.3 microseconds but less than 10 microseconds, a useful formula for estimating the allowable peak current is ib=ib0 (3/tp)Áת amps, where tp is the puls ...
2012
... 1. (a) Calculate the source current for the network as shown in figure 1a using stardelta transformation. ...
... 1. (a) Calculate the source current for the network as shown in figure 1a using stardelta transformation. ...
Control of Low Inductance ThinGap Motors
... coil inductance aids in smoothing current waveforms when using pulse width modulation (PWM) for control of motor speed. PWM is a common motor speed control method; it turns the motor controller voltage on and off in a prescribed manner to achieve speed control. The percentage that the voltage is on ...
... coil inductance aids in smoothing current waveforms when using pulse width modulation (PWM) for control of motor speed. PWM is a common motor speed control method; it turns the motor controller voltage on and off in a prescribed manner to achieve speed control. The percentage that the voltage is on ...
FAN400A — Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback
... reaches the threshold voltage (around 1.0V), the output GATE drive is turned off following a small propagation delay, tPD. This propagation delay introduces an additional current proportional to tPD•VIN/LP. The propagation delay is nearly constant regardless of the input line voltage VIN. Higher inp ...
... reaches the threshold voltage (around 1.0V), the output GATE drive is turned off following a small propagation delay, tPD. This propagation delay introduces an additional current proportional to tPD•VIN/LP. The propagation delay is nearly constant regardless of the input line voltage VIN. Higher inp ...
Servicing The Engine Management System
... induced into them if they were to come in close proximity to high current or voltage loads or their wiring voltage. When the vehicle’s electrical system is designed, consideration is given to isolate high current and voltage components and their related circuits from low voltage and current componen ...
... induced into them if they were to come in close proximity to high current or voltage loads or their wiring voltage. When the vehicle’s electrical system is designed, consideration is given to isolate high current and voltage components and their related circuits from low voltage and current componen ...
Oconee 1 4Q/2014 Plant Inspection Findings Initiating Events
... sustained degraded voltage below the under voltage relay voltage settings for the duration of the time delay setting or the manual actions credited. The licensee revised their voltage calculations to account for previously unanalyzed loads. The licensee entered this issue into its corrective action ...
... sustained degraded voltage below the under voltage relay voltage settings for the duration of the time delay setting or the manual actions credited. The licensee revised their voltage calculations to account for previously unanalyzed loads. The licensee entered this issue into its corrective action ...
Transformer Based Voltage Sag Generator to perform LVRT and
... fast switch speed, noise-free action, no spark, long life, vibration resistance and high reliability. But the thyristor is a half-controlled device and switching can only occur at the zero-crossing point of the current. Thus, for a three phase system two- or three-phase-faults will not occur simulta ...
... fast switch speed, noise-free action, no spark, long life, vibration resistance and high reliability. But the thyristor is a half-controlled device and switching can only occur at the zero-crossing point of the current. Thus, for a three phase system two- or three-phase-faults will not occur simulta ...
Open Circuit Test of a Single Phase Transformer jXm
... applying rated voltage (Eoc) to the primary winding and measuring the resultant current (Ioc) and power (Poc) while leaving the secondary winding open-circuited. Rated primary voltage is utilized because the applied voltage determines the created flux and therefore the operating point on the B-H cur ...
... applying rated voltage (Eoc) to the primary winding and measuring the resultant current (Ioc) and power (Poc) while leaving the secondary winding open-circuited. Rated primary voltage is utilized because the applied voltage determines the created flux and therefore the operating point on the B-H cur ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... In a three-phase system, either three single-phase transformer units or one three phase transformer unit can be used for voltage injection purpose .The injection transformer comprises of two side voltages namely the high voltage side and low voltage side. Normally the high voltage side of the inject ...
... In a three-phase system, either three single-phase transformer units or one three phase transformer unit can be used for voltage injection purpose .The injection transformer comprises of two side voltages namely the high voltage side and low voltage side. Normally the high voltage side of the inject ...
SG6742HL/HR Highly Integrated Green-Mode PWM Controller SG6742H L/H
... Figure 18. Over-Temperature Protection Threshold Voltage (VRTTH1) vs. Temperature ...
... Figure 18. Over-Temperature Protection Threshold Voltage (VRTTH1) vs. Temperature ...
DesignReview2
... The pass transistors in the multiplexor are NMOS_VTG. The increased threshold voltage could reduce leakage current. We can use FBB to enhance the speed performance. ...
... The pass transistors in the multiplexor are NMOS_VTG. The increased threshold voltage could reduce leakage current. We can use FBB to enhance the speed performance. ...
UCC3884 数据资料 dataSheet 下载
... When VOUT decreases below 3.0 V, the frequency foldback circuit is activated and the controller becomes unsynchronized. When VOUT exceeds 3.0 V, the controller resynchronizes to the external clock. COMP: The output of the voltage error amplifier used for compensation. The output is clamped to 3.0 V ...
... When VOUT decreases below 3.0 V, the frequency foldback circuit is activated and the controller becomes unsynchronized. When VOUT exceeds 3.0 V, the controller resynchronizes to the external clock. COMP: The output of the voltage error amplifier used for compensation. The output is clamped to 3.0 V ...
Power Flow Formulation Based on a Mixed-Linear and
... appropriate size; QS is the Schur complement of J defined ...
... appropriate size; QS is the Schur complement of J defined ...
Testing Analog Circuits by Supply Voltage Variation and Supply
... circuits can be characterized by open and short circuits. The effects of such faults can be observed through the output voltages and supply currents, using DC, AC and other computed values and determining the deviation of such values from the nominal values. These measurements are made more difficul ...
... circuits can be characterized by open and short circuits. The effects of such faults can be observed through the output voltages and supply currents, using DC, AC and other computed values and determining the deviation of such values from the nominal values. These measurements are made more difficul ...
AN9637: Simple Phase Meter Operates to 10MHz
... electronic devices in amplifiers and in audio, control, ultrasound, and echo systems. Phase measurements can be problematic, because not many simple, inexpensive phase meters are available. Moreover, using an oscilloscope is time consuming and imprecise. The phase meter described here uses a standar ...
... electronic devices in amplifiers and in audio, control, ultrasound, and echo systems. Phase measurements can be problematic, because not many simple, inexpensive phase meters are available. Moreover, using an oscilloscope is time consuming and imprecise. The phase meter described here uses a standar ...
Stray voltage
Stray voltage is the occurrence of electrical potential between two objects that ideally should not have any voltage difference between them. Small voltages often exist between two grounded objects in separate locations, due to normal current flow in the power system. Large voltages can appear on the enclosures of electrical equipment due to a fault in the electrical power system, such as a failure of insulation.