Application Note 9017 Manufacturing Technology of a Small Capacity Inverter CONTENTS
... place and thus, one protection circuit can protect the entire IGBT. Though this feature, which reduces the inverter production cost, is an advantage, the fact that the protection circuit can fail when a large current ground accident occurs, in which the current does not flow through the resistance a ...
... place and thus, one protection circuit can protect the entire IGBT. Though this feature, which reduces the inverter production cost, is an advantage, the fact that the protection circuit can fail when a large current ground accident occurs, in which the current does not flow through the resistance a ...
PowerPoint Template
... Cover-plate-weld procedure was studied and performed in order to protect the coil temperature from above 130oC. In-direct cooling method is used for the large coil through cooling tubing. All technologies that were developed and adopted in the large prototype coil will be validated by large co ...
... Cover-plate-weld procedure was studied and performed in order to protect the coil temperature from above 130oC. In-direct cooling method is used for the large coil through cooling tubing. All technologies that were developed and adopted in the large prototype coil will be validated by large co ...
NCP1251 - ONSemi
... –250 mV, then a peak current reduction down to 31.3% typical can be achieved. For an improved performance, the maximum voltage excursion on the sense resistor is limited to 0.8 V. • Low startup current: Achieving a low no−load standby power always represents a difficult exercise when the controller ...
... –250 mV, then a peak current reduction down to 31.3% typical can be achieved. For an improved performance, the maximum voltage excursion on the sense resistor is limited to 0.8 V. • Low startup current: Achieving a low no−load standby power always represents a difficult exercise when the controller ...
Soft-Switching Full-Bridge PWM DC–DC
... Diode output rectifier is mostly employed on the secondary side of the power transformer to rectify high frequency secondary voltage. Disconnection of the secondary windings is mostly achieved by application of the reverse bias for the output uncontrolled rectifier (see Fig. 1). Consequently, both p ...
... Diode output rectifier is mostly employed on the secondary side of the power transformer to rectify high frequency secondary voltage. Disconnection of the secondary windings is mostly achieved by application of the reverse bias for the output uncontrolled rectifier (see Fig. 1). Consequently, both p ...
Modeling and Control of a Variable-Speed Constant-Frequency Synchronous Generator With Brushless Exciter
... to incorporate stator and rotor iron losses in the equivalent ciras comcuit, two resistances can be added in series with monly done in induction machines, one to represent stator iron loss and the other to represent the rotor iron loss. Since rotor iron loss is proportional to rotor slip, the equiva ...
... to incorporate stator and rotor iron losses in the equivalent ciras comcuit, two resistances can be added in series with monly done in induction machines, one to represent stator iron loss and the other to represent the rotor iron loss. Since rotor iron loss is proportional to rotor slip, the equiva ...
XTR105 - Iiic.Cc
... requirements may be lower if the loop power-supply voltage is less than 36V. Some possible choices for Q1 are listed in Figure 1. The XTR105 can be operated without this external transistor, however, accuracy will be somewhat degraded due to the internal power dissipation. Operation without Q1 is no ...
... requirements may be lower if the loop power-supply voltage is less than 36V. Some possible choices for Q1 are listed in Figure 1. The XTR105 can be operated without this external transistor, however, accuracy will be somewhat degraded due to the internal power dissipation. Operation without Q1 is no ...
air core inductance value variation with number of turns and
... wire or absorption by materials within the magnetic field surrounding it. Inductor losses are modelled as a resistance, R, in series with a perfect or loss free inductance L as shown in fig ...
... wire or absorption by materials within the magnetic field surrounding it. Inductor losses are modelled as a resistance, R, in series with a perfect or loss free inductance L as shown in fig ...
IXZ631DF18N50 - IXYS Colorado
... designed for Class D, E, HF, and RF applications at up to 27 MHz, as well as other applications. The IXZ631DF18N50 in pulse mode can provide 95 A of peak current while producing voltage rise and fall times of less than 5 ns, and minimum pulse widths of 8 ns. The input of the driver is fully immune t ...
... designed for Class D, E, HF, and RF applications at up to 27 MHz, as well as other applications. The IXZ631DF18N50 in pulse mode can provide 95 A of peak current while producing voltage rise and fall times of less than 5 ns, and minimum pulse widths of 8 ns. The input of the driver is fully immune t ...
R5011ANJ
... The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from RO ...
... The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from RO ...
MAX8570–MAX8575 High-Efficiency LCD Boost with True Shutdown General Description
... an internal n-channel switch and an internal p-channel output isolation switch. These converters operate from a 2.7V to 5.5V supply voltage and deliver up to 28V at the output. A unique control scheme provides the highest efficiency over a wide range of load conditions. The internal MOSFET switch re ...
... an internal n-channel switch and an internal p-channel output isolation switch. These converters operate from a 2.7V to 5.5V supply voltage and deliver up to 28V at the output. A unique control scheme provides the highest efficiency over a wide range of load conditions. The internal MOSFET switch re ...
NCP1060 - High-Voltage Switcher for Low Power Offline SMPS
... SOIC−16 package, the NCP106X offer a high level of integration, including soft−start, frequency−jittering, short−circuit protection, skip−cycle, adjustable peak current set point, ramp compensation, and a Dynamic Self−Supply (eliminating the need for an auxiliary winding). Unlike other monolithic so ...
... SOIC−16 package, the NCP106X offer a high level of integration, including soft−start, frequency−jittering, short−circuit protection, skip−cycle, adjustable peak current set point, ramp compensation, and a Dynamic Self−Supply (eliminating the need for an auxiliary winding). Unlike other monolithic so ...
H045034248
... In this paper multistage grid connected inverter for solar PV based system and the types of multilevel inverter are discussed. The conventional line commutated inverters have square shaped waveform of line current which generates high harmonics and also produces excessive heat which causes damage to ...
... In this paper multistage grid connected inverter for solar PV based system and the types of multilevel inverter are discussed. The conventional line commutated inverters have square shaped waveform of line current which generates high harmonics and also produces excessive heat which causes damage to ...
03046
... Description: In a three-wire ungrounded system, no neutral wire is run with the three-phase conductors nor is the transformer grounded at the substation. This means that three-phase system voltages are completely floating with respect to the earth ground. Ground fault currents, with no direct ground ...
... Description: In a three-wire ungrounded system, no neutral wire is run with the three-phase conductors nor is the transformer grounded at the substation. This means that three-phase system voltages are completely floating with respect to the earth ground. Ground fault currents, with no direct ground ...
PHASE VOLTAGE SOURCE INVERTER (VSI)
... Figure 2.1 represent a half-bride midpoint configuration of the single-phase VSI. Usually the role of switches VT1 and VT2 are played by BJTs, IGBTs, MOSFETs, GTO thyristors or force-commutational SCRs. VT1 and VT2 will arrange the DC source with the common terminal to supply the load, M. During the ...
... Figure 2.1 represent a half-bride midpoint configuration of the single-phase VSI. Usually the role of switches VT1 and VT2 are played by BJTs, IGBTs, MOSFETs, GTO thyristors or force-commutational SCRs. VT1 and VT2 will arrange the DC source with the common terminal to supply the load, M. During the ...
Aalborg Universitet Yao, Zhilei; Xu, Jing; Guerrero, Josep M.
... modeling of the PPF TL converter is proposed. The operating principle is illustrated in Section II. Only two independent control variables are needed, which are the same as the traditional TL converter. Then modeling of the PPF TL converter is established in Section III. Small-signal model of the PP ...
... modeling of the PPF TL converter is proposed. The operating principle is illustrated in Section II. Only two independent control variables are needed, which are the same as the traditional TL converter. Then modeling of the PPF TL converter is established in Section III. Small-signal model of the PP ...
FAN6747WL Highly Integrated Green-Mode PWM Controller FAN6747WL — Highly Integra
... OCP threshold voltage are adjusted according to AC line voltage detected by the HV pin. The gate output is clamped at 13.5V to protect the external MOSFET from over-voltage damage. Other protection functions include AC-line brownout protection with hysteresis and VDD over-voltage protection. For ove ...
... OCP threshold voltage are adjusted according to AC line voltage detected by the HV pin. The gate output is clamped at 13.5V to protect the external MOSFET from over-voltage damage. Other protection functions include AC-line brownout protection with hysteresis and VDD over-voltage protection. For ove ...
NCV7691 - Current Controller for Automotive LED Lamps
... rear combination lamps. A single driver gives the user flexibility to add single channels to multichannel systems. A dedicated dimming feature is included via the PWM input pin. The individual driver is turned off when an open load or short circuit is detected. LED brightness levels are easily progr ...
... rear combination lamps. A single driver gives the user flexibility to add single channels to multichannel systems. A dedicated dimming feature is included via the PWM input pin. The individual driver is turned off when an open load or short circuit is detected. LED brightness levels are easily progr ...
Zero-voltage switching for three-level capacitor clamping
... works with soft turn on and snubbed turn off, whereas the main freewheeling diode works with hard turn on and soft turn off. Superior to the conventional snubber, the snubbed turn-off loss of the main switch here can be minimized by optimizing the resonant capacitor to this end. Meanwhile, depending ...
... works with soft turn on and snubbed turn off, whereas the main freewheeling diode works with hard turn on and soft turn off. Superior to the conventional snubber, the snubbed turn-off loss of the main switch here can be minimized by optimizing the resonant capacitor to this end. Meanwhile, depending ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... receiving end voltage etc., are able to sense any type of change in system in accurate and efficient way as compared to two bus series equivalent methodology. An innovative technique named GVSM is used to assess the voltage instability or in other words to assess the proximity of the existing system ...
... receiving end voltage etc., are able to sense any type of change in system in accurate and efficient way as compared to two bus series equivalent methodology. An innovative technique named GVSM is used to assess the voltage instability or in other words to assess the proximity of the existing system ...
Stepper motor
A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed.Switched reluctance motors are very large stepping motors with a reduced pole count, and generally are closed-loop commutated.