new triacs: is the snubber circuit necessary?
... load. At turn off it limits the slope of reapplied voltage dV/dt but generates an overvoltage VM. Its choice results of a compromise in order to respect (dV/dt)c and repetitive peak off state voltage VDRM triac specification.There are two possibilities: 1/ for low VDRM the resonant circuit must be d ...
... load. At turn off it limits the slope of reapplied voltage dV/dt but generates an overvoltage VM. Its choice results of a compromise in order to respect (dV/dt)c and repetitive peak off state voltage VDRM triac specification.There are two possibilities: 1/ for low VDRM the resonant circuit must be d ...
TPS43000 数据资料 dataSheet 下载
... PFM mode, a shutdown current of less than 1 µA, a sleep-mode current of less than 100 µA and a full operating current of less than 2 mA at 1 MHz, it is ideal for building highly efficient, dc-to-dc converters. The TPS43000 operates over a wide input voltage range of 1.8 V to 9.0 V. Typical power sou ...
... PFM mode, a shutdown current of less than 1 µA, a sleep-mode current of less than 100 µA and a full operating current of less than 2 mA at 1 MHz, it is ideal for building highly efficient, dc-to-dc converters. The TPS43000 operates over a wide input voltage range of 1.8 V to 9.0 V. Typical power sou ...
Scintillation Breakdowns in Tantalum Capacitors
... events are often considered as nuisances, rather than failures. The author argues that a time-dependent sustained scintillation breakdown can be considered as a major reason of failures during steady-state operation of the capacitors. Analysis of distributions of scintillation breakdown voltages and ...
... events are often considered as nuisances, rather than failures. The author argues that a time-dependent sustained scintillation breakdown can be considered as a major reason of failures during steady-state operation of the capacitors. Analysis of distributions of scintillation breakdown voltages and ...
High Power Flyback Controller with Primary
... During low power modes (when FSW < FSMP(max)), the internal SD terminal pull-up is disabled, and the terminal functions as a transient wake-up input. In this case, if the terminal is raised above VWAKE(rise) level, the device wakes from low power sleep mode (rather than waiting for the scheduled tim ...
... During low power modes (when FSW < FSMP(max)), the internal SD terminal pull-up is disabled, and the terminal functions as a transient wake-up input. In this case, if the terminal is raised above VWAKE(rise) level, the device wakes from low power sleep mode (rather than waiting for the scheduled tim ...
The Bidirectional Control Thyristor (BCT)
... Several important applications in Power Electronics involve the use of thyristor components in antiparallel. These include Static VAr Compensators, industrial motor drives, soft starters and transformer tap changers in power quality applications. In such high voltage applications several thyristor l ...
... Several important applications in Power Electronics involve the use of thyristor components in antiparallel. These include Static VAr Compensators, industrial motor drives, soft starters and transformer tap changers in power quality applications. In such high voltage applications several thyristor l ...
Tesla coil - 50Webs.com
... switch the charge in the capacitor through the primary coil. A secondary coil supporting a metallic toroid or top load is coupled with the primary. How a Tesla coil works As the capacitor charges from the high voltage power supply, the potential across the static spark gap electrodes increases until ...
... switch the charge in the capacitor through the primary coil. A secondary coil supporting a metallic toroid or top load is coupled with the primary. How a Tesla coil works As the capacitor charges from the high voltage power supply, the potential across the static spark gap electrodes increases until ...
MAX4490/MAX4491/MAX4492 Low-Cost, High-Slew-Rate, Rail-to-Rail I/O Op Amps in SC70 General Description
... The MAX4490/MAX4491/MAX4492 CMOS operational amplifiers feature class-AB push-pull output stages that can drive a 100kΩ load to within 1.5mV of either supply rail. Short-circuit output current is typically ±50mA. Figures 1a and 1b show the typical temperature dependence of output source and sink cur ...
... The MAX4490/MAX4491/MAX4492 CMOS operational amplifiers feature class-AB push-pull output stages that can drive a 100kΩ load to within 1.5mV of either supply rail. Short-circuit output current is typically ±50mA. Figures 1a and 1b show the typical temperature dependence of output source and sink cur ...
MOV General Electrical
... step function to the stray capacitance and inductance of the secondary winding can generate an oscillatory transient voltage with a peak amplitude up to twice the normal peak secondary voltage. De-Energizing the transformer primary • The opening of the primary circuit of a transformer generates extr ...
... step function to the stray capacitance and inductance of the secondary winding can generate an oscillatory transient voltage with a peak amplitude up to twice the normal peak secondary voltage. De-Energizing the transformer primary • The opening of the primary circuit of a transformer generates extr ...
22 & 33 kV CURRENT & POTENTIAL TRANSFORMERS
... The rating of the secondary winding shall be as specified under Section-II of this specification, ratio changing arrangement shall be provided on secondary winding for multi-ratio design, either a number of identical secondary winding may be provided to achieve desired ratios by series, parallel con ...
... The rating of the secondary winding shall be as specified under Section-II of this specification, ratio changing arrangement shall be provided on secondary winding for multi-ratio design, either a number of identical secondary winding may be provided to achieve desired ratios by series, parallel con ...
- Ingineeri.com
... Over the 1000-10000A fault current range, the critical gradient decreases from 5-4kV/m. Phase-to-phase faults on a pole can give rise to fault current in order of a few kiloampers. Therefore the critical gradient can be assumed to be 4kV/m. for a 10kV power line operating at maximum voltage (20% hi ...
... Over the 1000-10000A fault current range, the critical gradient decreases from 5-4kV/m. Phase-to-phase faults on a pole can give rise to fault current in order of a few kiloampers. Therefore the critical gradient can be assumed to be 4kV/m. for a 10kV power line operating at maximum voltage (20% hi ...
GENERAL-PURPOSE INVERTER WITH ADVANCED VECTOR
... 9.8 m/s2 at 10Hz to 20Hz or below, up to 2.0 m/s2 at 20Hz to 55Hz ...
... 9.8 m/s2 at 10Hz to 20Hz or below, up to 2.0 m/s2 at 20Hz to 55Hz ...
acopos user`s manual (v1)
... At our premises in Wrocław, we have a fully equipped servicing facility. Here we perform all the repair works and test each later sold unit. Our trained employees, equipped with a wide variety of tools and having several testing stands at their disposal, are a guarantee of the highest quality servic ...
... At our premises in Wrocław, we have a fully equipped servicing facility. Here we perform all the repair works and test each later sold unit. Our trained employees, equipped with a wide variety of tools and having several testing stands at their disposal, are a guarantee of the highest quality servic ...
TPS65262-1 - Texas Instruments
... The TPS65262-1 is a monolithic, triple-synchronous step-down (buck) converter with 3-A/1-A/1-A output current. A wide 4.5- to 18-V input supply voltage range encompasses the most intermediate bus voltage operating off 5-V, 9-V, 12-V, or 15-V power bus. The converter, with constant frequency peak cur ...
... The TPS65262-1 is a monolithic, triple-synchronous step-down (buck) converter with 3-A/1-A/1-A output current. A wide 4.5- to 18-V input supply voltage range encompasses the most intermediate bus voltage operating off 5-V, 9-V, 12-V, or 15-V power bus. The converter, with constant frequency peak cur ...
Maximum Efficiency per Torque Control of Permanent
... surface-mounted PMSMs (SPMSMs) and will not damage the permanent magnet. The id = 0 control is the MTPA control in SPMSMs as the inductance in the d-axis is equal to that in the q-axis, and the torque is linearly related to the q-axis current. However, id = 0 control cannot maximize the electromagne ...
... surface-mounted PMSMs (SPMSMs) and will not damage the permanent magnet. The id = 0 control is the MTPA control in SPMSMs as the inductance in the d-axis is equal to that in the q-axis, and the torque is linearly related to the q-axis current. However, id = 0 control cannot maximize the electromagne ...
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.