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... barrier. The microstructure and surface condition of the barrier can strongly affect the texture and grain size of overlying Cu film, which are critical factors that determines the electromigration reliability of Cu interconnects. Hence, the presence of this barrier material for Cu interconnects inc ...
... barrier. The microstructure and surface condition of the barrier can strongly affect the texture and grain size of overlying Cu film, which are critical factors that determines the electromigration reliability of Cu interconnects. Hence, the presence of this barrier material for Cu interconnects inc ...
Ch23
... Gate current must be on for a specified minimum time interval (few tens of microseconds) to guarantee SCR turn-on Copyright © by John Wiley & Sons 2002 ...
... Gate current must be on for a specified minimum time interval (few tens of microseconds) to guarantee SCR turn-on Copyright © by John Wiley & Sons 2002 ...
Improving Control Dynamics of PMSM Drive by Estimating Zero
... mean value calculated for each control cycle. As a result, the motor currents consist of only fundamental component. The scope of the analysis includes the proposed ZDC approach and two typical current sampling scenarios, i.e. sampling at tV[k-1] or tP[k-1] instants. The model was set up to match la ...
... mean value calculated for each control cycle. As a result, the motor currents consist of only fundamental component. The scope of the analysis includes the proposed ZDC approach and two typical current sampling scenarios, i.e. sampling at tV[k-1] or tP[k-1] instants. The model was set up to match la ...
KF3617641768
... 216-612 in sector-I and 321-123 in sector-II and so on. Moreover the modulating waveform of NSPWM is similar to DPWM1 waveform. From Fig. 1(b) it can be observed that a-phase is clamped to positive dc bus. Hence the switching losses associated with the inverter are reduced. As all the sectors are sy ...
... 216-612 in sector-I and 321-123 in sector-II and so on. Moreover the modulating waveform of NSPWM is similar to DPWM1 waveform. From Fig. 1(b) it can be observed that a-phase is clamped to positive dc bus. Hence the switching losses associated with the inverter are reduced. As all the sectors are sy ...
stepper motor drive considerations, common
... In general the best performance, in terms of torque, is achieved using the chopping current control technique [2]. This technique also allows easy implementation of multiple current level drive techniques to improve the motor performance. [1] Driving a Unipolar Motor with the L298N or L6202 Although ...
... In general the best performance, in terms of torque, is achieved using the chopping current control technique [2]. This technique also allows easy implementation of multiple current level drive techniques to improve the motor performance. [1] Driving a Unipolar Motor with the L298N or L6202 Although ...
Fuses – Introductory Information
... The most important point of a fuse specification is the time/current characteristic. This curve describes the breaking behaviour of fuses in the overload range which usually covers currents from 1 x IN or 1,5 x IN (depending on type and style) up to approximately 3 x IN. Above these currents, the sh ...
... The most important point of a fuse specification is the time/current characteristic. This curve describes the breaking behaviour of fuses in the overload range which usually covers currents from 1 x IN or 1,5 x IN (depending on type and style) up to approximately 3 x IN. Above these currents, the sh ...
NCP1608 Critical Conduction Mode PFC Controller Utilizing a Transconductance Error
... factor without the need for a line-sensing network. A high precision transconductance error amplifier regulates the output voltage. The controller implements comprehensive safety features for robust designs. The key features of the NCP1608 are: • Constant On Time (Voltage Mode) CrM Operation. A high ...
... factor without the need for a line-sensing network. A high precision transconductance error amplifier regulates the output voltage. The controller implements comprehensive safety features for robust designs. The key features of the NCP1608 are: • Constant On Time (Voltage Mode) CrM Operation. A high ...
Packaged APDs VFP-1000 Series
... The breakdown voltage of an APD is dependent upon its temperature: the breakdown voltage decreases when the APD is cooled. Consequently, a reverse bias operating point that is safe at room temperature may put the APD into breakdown at low temperature. The approximate temperature dependence of the br ...
... The breakdown voltage of an APD is dependent upon its temperature: the breakdown voltage decreases when the APD is cooled. Consequently, a reverse bias operating point that is safe at room temperature may put the APD into breakdown at low temperature. The approximate temperature dependence of the br ...
Regent VL71i - Victor Lighting
... Thermal protectors are included. If the lamp goes on and off over a timescale of several minutes, this could be the thermal protector operating. The causes are defective lamps/diode effects, gross over voltage or the choke beginning to fail and this should be investigated directly. Also see section ...
... Thermal protectors are included. If the lamp goes on and off over a timescale of several minutes, this could be the thermal protector operating. The causes are defective lamps/diode effects, gross over voltage or the choke beginning to fail and this should be investigated directly. Also see section ...
AP8801 500mA LED STEP-DOWN CONVERTER Description
... Voltage range for 24% to 200% DC dimming relative to GND (Note 4) ...
... Voltage range for 24% to 200% DC dimming relative to GND (Note 4) ...
AD628 High Common-Mode Voltage, Programmable Gain
... A precision 10 kΩ resistor connected to an external pin is provided for either a low-pass filter or to attenuate large differential input signals. A single capacitor implements a lowpass filter. The AD628 operates from single and dual supplies and is available in an 8-lead SOIC_N or an 8-lead MSOP. ...
... A precision 10 kΩ resistor connected to an external pin is provided for either a low-pass filter or to attenuate large differential input signals. A single capacitor implements a lowpass filter. The AD628 operates from single and dual supplies and is available in an 8-lead SOIC_N or an 8-lead MSOP. ...
Testing the Pulse Width Modulator
... PWM is typically applied at a fairly high frequency so that the switching between full power on and no power applied occurs too rapidly for the motor to actually speed up or slow down each cycle. Recall from the earlier lab that the motor has the same frequency response as a low pass filter. This me ...
... PWM is typically applied at a fairly high frequency so that the switching between full power on and no power applied occurs too rapidly for the motor to actually speed up or slow down each cycle. Recall from the earlier lab that the motor has the same frequency response as a low pass filter. This me ...
FPF1013 / FPF1014 IntelliMAX™ 1 V-Rated
... Thermal performance is improved using techniques recommended in the layout recommendations section of datasheet. ...
... Thermal performance is improved using techniques recommended in the layout recommendations section of datasheet. ...
TPS61054 数据资料 dataSheet 下载
... synchronous-boost topology with constant current sink to drive single white LEDs. The device uses an inductive fixed-frequency PWM control scheme using small external components, minimizing input ripple current. The 2-MHz switching frequency allows the use of small and low-profile 2.2-µH inductors. ...
... synchronous-boost topology with constant current sink to drive single white LEDs. The device uses an inductive fixed-frequency PWM control scheme using small external components, minimizing input ripple current. The 2-MHz switching frequency allows the use of small and low-profile 2.2-µH inductors. ...