H045045059
... and brushless dc (BLDC) motors, VSIs are typically used, as shown in Fig. 5(a). The phase currents of the machine can be controlled to form sine (PMSM drive system) or square waves (BLDC drive sys- tem). The former has the advantage of no torque ripple due to the sinusoidal back EMF waveform, but on ...
... and brushless dc (BLDC) motors, VSIs are typically used, as shown in Fig. 5(a). The phase currents of the machine can be controlled to form sine (PMSM drive system) or square waves (BLDC drive sys- tem). The former has the advantage of no torque ripple due to the sinusoidal back EMF waveform, but on ...
DESIGNING AN UNINTERRUPTIBLE POWER SUPPLY BASED ON
... This paper presents an implementation of the DC/DC push–pull converter for an uninterruptible power supply (UPS). Some classical DC/DC converters are presented and analyzed for pointing out their advantages and drawbacks. Besides, an original system based on a push-pull converter associated with a d ...
... This paper presents an implementation of the DC/DC push–pull converter for an uninterruptible power supply (UPS). Some classical DC/DC converters are presented and analyzed for pointing out their advantages and drawbacks. Besides, an original system based on a push-pull converter associated with a d ...
The Importance of the X/R Ratio in Low
... equipment to the available fault current at the equipment. What is not always realized is that when lowvoltage gear is tested, it is tested at a certain X/R ratio. The X/R ratio is important because it determines the peak asymmetrical fault current. The asymmetrical fault current can be much larger ...
... equipment to the available fault current at the equipment. What is not always realized is that when lowvoltage gear is tested, it is tested at a certain X/R ratio. The X/R ratio is important because it determines the peak asymmetrical fault current. The asymmetrical fault current can be much larger ...
AN1048/D RC Snubber Networks For Thyristor Power Control and
... voltage and inversely proportional to series inductance. The snubber is often the major offender because of its low inductance and close proximity to the thyristor. With no transient suppressor, breakdown of the thyristor sets the maximum voltage on the capacitor. It is possible to exceed the highes ...
... voltage and inversely proportional to series inductance. The snubber is often the major offender because of its low inductance and close proximity to the thyristor. With no transient suppressor, breakdown of the thyristor sets the maximum voltage on the capacitor. It is possible to exceed the highes ...
Description ZXGD3102T8
... It is advisable to decouple the ZXGD3102 closely to VCC and ground due to the possibility of high peak gate currents, as indicated by C1 in Figure 4. In applications where the input voltage is higher than 12V, it is recommended to use a Zener diode, ZD1 as shown in the Typical Application Circuit on ...
... It is advisable to decouple the ZXGD3102 closely to VCC and ground due to the possibility of high peak gate currents, as indicated by C1 in Figure 4. In applications where the input voltage is higher than 12V, it is recommended to use a Zener diode, ZD1 as shown in the Typical Application Circuit on ...
Evaluates: MAX5088/MAX5089 MAX5089 Evaluation Kit General Description Features
... Do not turn on the power supply until all connections are completed. 1) Verify that no shunt is installed across the pins of jumper JU1 (U1 enabled). ...
... Do not turn on the power supply until all connections are completed. 1) Verify that no shunt is installed across the pins of jumper JU1 (U1 enabled). ...
Guidelines for Modernizing Existing Electrical
... Guidelines for Modernizing Existing Electrical Switchgear in LV and MV Networks ...
... Guidelines for Modernizing Existing Electrical Switchgear in LV and MV Networks ...
Simulation of an Electrostatic Energy Harvester at
... A design that employs an electret as an internal bias and therefore avoids the need for external bias was proposed by Sterken et.al. [3]. A sketch of this type of electrostatic energy harvester with internal bias is shown in Fig. 1, top and middle drawing. In the equivalent circuit, bottom drawing o ...
... A design that employs an electret as an internal bias and therefore avoids the need for external bias was proposed by Sterken et.al. [3]. A sketch of this type of electrostatic energy harvester with internal bias is shown in Fig. 1, top and middle drawing. In the equivalent circuit, bottom drawing o ...
Power Optimization of 8:1 MUX using Transmission Gate
... logic designs within the analysis however has mainly focused on specific logic cell, namely Multiplexers, utilized in arithmetic circuits. At higher frequency the CMOS logic will operate continuously with low power consumption [4] [5]. The various methods are widely used for reducing power dissipati ...
... logic designs within the analysis however has mainly focused on specific logic cell, namely Multiplexers, utilized in arithmetic circuits. At higher frequency the CMOS logic will operate continuously with low power consumption [4] [5]. The various methods are widely used for reducing power dissipati ...
BD9031FV-C
... outside of the recommended range will lead to an excessive ripple voltage being superimposed on the input voltage and may cause the IC to malfunction. Also, be certain to ascertain the operating temperature, load range and MOSFET conditions for the application in which the capacitor will be used, si ...
... outside of the recommended range will lead to an excessive ripple voltage being superimposed on the input voltage and may cause the IC to malfunction. Also, be certain to ascertain the operating temperature, load range and MOSFET conditions for the application in which the capacitor will be used, si ...
TPS61175 SEPIC Design Application Report ...................................................................................... Design Example
... The loop bandwidth assumption of 5 kHz may have to be modified later. The designer selected C2 = 2 × 22 mF, 50-V output capacitors instead of one 47-mF capacitor because the resonance frequency of most 47-mF capacitors is above the 1-MHz switching frequency. If capacitors with higher ESRs than those ...
... The loop bandwidth assumption of 5 kHz may have to be modified later. The designer selected C2 = 2 × 22 mF, 50-V output capacitors instead of one 47-mF capacitor because the resonance frequency of most 47-mF capacitors is above the 1-MHz switching frequency. If capacitors with higher ESRs than those ...
12a VELCO stationery
... An outage could reduce Vermont’s ability to deal with contingencies by as much as 350 MW, likely increasing the costs for the electric distribution utilities in Vermont. This condition would also expose the system to voltage collapse problems for several contemporaneous contingencies, which could no ...
... An outage could reduce Vermont’s ability to deal with contingencies by as much as 350 MW, likely increasing the costs for the electric distribution utilities in Vermont. This condition would also expose the system to voltage collapse problems for several contemporaneous contingencies, which could no ...
Failure Mechanisms For Transient Voltage Suppressors
... In most applications, anticipated transient threats are well defined as exemplified in the RTCA DO-160 specification for avionics or in international standards such as IEC-10004-2, IEC-1000-4-4, and IEC-1000-4-5 where the open-circuit-transient voltage (V OC ) and short-circuit current (I SC ) are i ...
... In most applications, anticipated transient threats are well defined as exemplified in the RTCA DO-160 specification for avionics or in international standards such as IEC-10004-2, IEC-1000-4-4, and IEC-1000-4-5 where the open-circuit-transient voltage (V OC ) and short-circuit current (I SC ) are i ...
