A closer look at VSD voltage output waveforms
... then calculating the phase-to-phase parameters directly from several phase-to-earth measurements. Because of the high-frequency equivalent circuit and stray capacitances (see Figure 5) – for many (most in fact) VSD-related insulation failure mechanisms – phase-to-earth voltages are far more importan ...
... then calculating the phase-to-phase parameters directly from several phase-to-earth measurements. Because of the high-frequency equivalent circuit and stray capacitances (see Figure 5) – for many (most in fact) VSD-related insulation failure mechanisms – phase-to-earth voltages are far more importan ...
Chapter 9: Diodes and Diode Circuits
... The pn junction is doped much more heavily than other types of diodes. Tunnel diodes are used in the forwardbiased state and exhibits what is known as negative resistance. ...
... The pn junction is doped much more heavily than other types of diodes. Tunnel diodes are used in the forwardbiased state and exhibits what is known as negative resistance. ...
KETEK App Note TEC REV0 2011-05
... better power efficiency. With a maximum current of 700mA and a voltage of 3.6V (2.5W) a temperature difference of at least 75K can be achieved. The typical operating temperature of -35°C at a heat sink temperature of 20°C can already be achieved at less than 300mA with a voltage below 1.7V equal a p ...
... better power efficiency. With a maximum current of 700mA and a voltage of 3.6V (2.5W) a temperature difference of at least 75K can be achieved. The typical operating temperature of -35°C at a heat sink temperature of 20°C can already be achieved at less than 300mA with a voltage below 1.7V equal a p ...
High Precision PSR Constant Current LED Driver
... The start-up current in FT833xxx is designed to be as low as 26uA. The VCC capacitor is charged through the start-up resistor when the system is powered on. Once the VCC voltage reaches the start-up threshold, the FT833xxx starts to switch. The VCC voltage of FT833xxx is clamped at 15.4V, Due to the ...
... The start-up current in FT833xxx is designed to be as low as 26uA. The VCC capacitor is charged through the start-up resistor when the system is powered on. Once the VCC voltage reaches the start-up threshold, the FT833xxx starts to switch. The VCC voltage of FT833xxx is clamped at 15.4V, Due to the ...
Datasheet - Integrated Device Technology
... 3. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25ns for CL = 50pF. Since this time constant is much smaller than the rise and fall times of typical dri ...
... 3. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25ns for CL = 50pF. Since this time constant is much smaller than the rise and fall times of typical dri ...
Teknologi Elektrik
... characteristics-an out standing advantage of dc machines. The field poles can be excited by two field windings, a shunt filed winding and a series field winding. The shunt winding has a large number of turns and takes only a small current (< 5% rated armature current). The series winding has fewer t ...
... characteristics-an out standing advantage of dc machines. The field poles can be excited by two field windings, a shunt filed winding and a series field winding. The shunt winding has a large number of turns and takes only a small current (< 5% rated armature current). The series winding has fewer t ...
Control of Self Excited Induction Generator using ANN based SVC
... Recently, there have been excessive and attractive schemes of neural network used in power system control since they hold a promising future to solve problems that have so far been difficult to handle with classical analytical methods. Among these control schemes, the back propagation based neural n ...
... Recently, there have been excessive and attractive schemes of neural network used in power system control since they hold a promising future to solve problems that have so far been difficult to handle with classical analytical methods. Among these control schemes, the back propagation based neural n ...
Instruction Manuals
... base plate temperature. Note that operation within the hatched areas will cause a significant level of ripple and ripple noise. ¡Please measure the temperature on the aluminum base plate edge side when you cannot measure the temperature of the center part of the aluminum base plate. In this case, pl ...
... base plate temperature. Note that operation within the hatched areas will cause a significant level of ripple and ripple noise. ¡Please measure the temperature on the aluminum base plate edge side when you cannot measure the temperature of the center part of the aluminum base plate. In this case, pl ...
SCT Detector shielding and grounding Tony Smith Jan 00
... The output voltage of the signal generator voltage should now be adjusted so that the voltage measured differentially across the 50 ohm load is 0.5 volt, which will drive 10 mA of current around the loop. Note that it is important to measure the size of the signal on each side of the 50 ohm resisto ...
... The output voltage of the signal generator voltage should now be adjusted so that the voltage measured differentially across the 50 ohm load is 0.5 volt, which will drive 10 mA of current around the loop. Note that it is important to measure the size of the signal on each side of the 50 ohm resisto ...
Digest template
... This article deals with proposal of automatic resistance rheostat designed for distant measurement laboratory (VMLab). The distant measurement laboraty is a complex measurement system which serves for student´s education. In order to obtain the real measurement conditions, the automated resistance r ...
... This article deals with proposal of automatic resistance rheostat designed for distant measurement laboratory (VMLab). The distant measurement laboraty is a complex measurement system which serves for student´s education. In order to obtain the real measurement conditions, the automated resistance r ...
9_EMBEDDED_GR_ppapag_ADC
... • Using a counter and a specified time period the frequency of the VCO can be determined • Since the frequency of the VCO is known, the input driving the VCO can be calculated • Negative feedback is used to generate the oscillator – which is in the form of a 1 bit serial bit stream ...
... • Using a counter and a specified time period the frequency of the VCO can be determined • Since the frequency of the VCO is known, the input driving the VCO can be calculated • Negative feedback is used to generate the oscillator – which is in the form of a 1 bit serial bit stream ...
Advances in Natural and Applied Sciences
... regarding system voltage security (Mehrdad et al 2009). Due to increased open access and increased system loading, power system is vulnerable to voltage instability (Jafari et al 2007).Voltage collapse and instability has been responsible for several major disturbances of power systems. Hence, to ov ...
... regarding system voltage security (Mehrdad et al 2009). Due to increased open access and increased system loading, power system is vulnerable to voltage instability (Jafari et al 2007).Voltage collapse and instability has been responsible for several major disturbances of power systems. Hence, to ov ...
ADR293 数据手册DataSheet 下载
... reference voltage is around 0.5 V with a negative temperature coefficient of about –120 ppm/K. This slope is essentially locked to the dielectric constant of silicon and can be closely compensated by adding a correction term generated in the same fashion as the proportional-to-temperature (PTAT) ter ...
... reference voltage is around 0.5 V with a negative temperature coefficient of about –120 ppm/K. This slope is essentially locked to the dielectric constant of silicon and can be closely compensated by adding a correction term generated in the same fashion as the proportional-to-temperature (PTAT) ter ...
IRF420-423/IRF820-823 MTP2N45/2N50 N
... IRF420-423/IRF820-823 MTP2N45/2N50 N-Channel Power MOSFETs 3.0A, 450V/500V Description These devices are n-channel, enhancement mode, power MOSFETs designed especially for high speed applications, such as switching power supplies, converters, AC and DC motor controls, relay and solenoid drivers and ...
... IRF420-423/IRF820-823 MTP2N45/2N50 N-Channel Power MOSFETs 3.0A, 450V/500V Description These devices are n-channel, enhancement mode, power MOSFETs designed especially for high speed applications, such as switching power supplies, converters, AC and DC motor controls, relay and solenoid drivers and ...
A 93% efficient LED driver solution for the US market
... powers U2, and C8 which powers U1. R2 and C9 form a filter to remove ringing spikes due to leakage inductance. The auxiliary (lower) winding on L1 has a turns ratio that puts about 15 V on C9 with the AC line applied. The voltage on C9 is proportional to the LED voltage. This will limit the number o ...
... powers U2, and C8 which powers U1. R2 and C9 form a filter to remove ringing spikes due to leakage inductance. The auxiliary (lower) winding on L1 has a turns ratio that puts about 15 V on C9 with the AC line applied. The voltage on C9 is proportional to the LED voltage. This will limit the number o ...
ESD8104 - ESD Protection Diode
... SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any ...
... SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any ...
FAN6751MR Highly-Integrated Green-Mode PWM Controller FA N
... For constant output power limit over universal inputvoltage range, the peak-current threshold is adjusted by the voltage of the VIN pin. Since the VIN pin is connected to the rectified AC input line voltage through the resistive divider, a higher line voltage generates a higher VIN voltage. The thre ...
... For constant output power limit over universal inputvoltage range, the peak-current threshold is adjusted by the voltage of the VIN pin. Since the VIN pin is connected to the rectified AC input line voltage through the resistive divider, a higher line voltage generates a higher VIN voltage. The thre ...
Two - Schneider Electric
... latter will interrupt the current in less than 40 ms, whereas type S and R devices "wait" for 80 ms and 200 ms respectively. Therefore, neither of the two devices trips. bb if the fault occurs downstream of the type S residual current device, the latter will interrupt the current in less than 175 ms ...
... latter will interrupt the current in less than 40 ms, whereas type S and R devices "wait" for 80 ms and 200 ms respectively. Therefore, neither of the two devices trips. bb if the fault occurs downstream of the type S residual current device, the latter will interrupt the current in less than 175 ms ...