TRANSIENT PROTECTION SOLUTIONS: Transil™ diode versus
... To avoid dramatic consequences on systems submitted to over voltage transients, the best way is to use protection devices based on clamping action. In this kind of products we have the choice between two technologies : - silicon devices named Transil™ - so called TVS3 - and ceramic components - Vari ...
... To avoid dramatic consequences on systems submitted to over voltage transients, the best way is to use protection devices based on clamping action. In this kind of products we have the choice between two technologies : - silicon devices named Transil™ - so called TVS3 - and ceramic components - Vari ...
improving of power quality using upqc based on current
... series inverter of UPQC is introduced and named as UPQCS. The proposed concept of the UPQC-S approach is mathematically formulated and analyzed for voltage sag and swell conditions. The developed comprehensive equations for UPQC-S can be utilized to estimate the required series injection voltage and ...
... series inverter of UPQC is introduced and named as UPQCS. The proposed concept of the UPQC-S approach is mathematically formulated and analyzed for voltage sag and swell conditions. The developed comprehensive equations for UPQC-S can be utilized to estimate the required series injection voltage and ...
FAN6862H / FAN6862HR Highly Integrated Green-Mode PWM Controller
... indicator of the output load and modulates the PWM frequency, as shown in Figure 23, such that the switching frequency decreases as load decreases. In heavy-load conditions, the switching frequency is 65KHz. Once VFB decreases below VFB-N (2.6V), the PWM frequency starts to linearly decrease from 10 ...
... indicator of the output load and modulates the PWM frequency, as shown in Figure 23, such that the switching frequency decreases as load decreases. In heavy-load conditions, the switching frequency is 65KHz. Once VFB decreases below VFB-N (2.6V), the PWM frequency starts to linearly decrease from 10 ...
Measured Output Voltages of Piezoelectric Devices Depend on the
... cycling load. This phenomenon does not obey the piezoelectric theory for open circuit, which is usually adopted for the quantitative calculation of peak voltages in the literature. Here, we studied this important problem experimentally and theoretically. Collective results show that the measured out ...
... cycling load. This phenomenon does not obey the piezoelectric theory for open circuit, which is usually adopted for the quantitative calculation of peak voltages in the literature. Here, we studied this important problem experimentally and theoretically. Collective results show that the measured out ...
ece2201_lab5_modified
... L6. For the input signal source (a 10kHz, 0.1V peak sine wave riding on a 1.0V DC level) use the function generator with the DC offset enabled (pull out the DC OFFSET knob). Display vIN on oscilloscope channel 1; set the horizontal time scale to show a few cycles of the sine wave. To set the DC offs ...
... L6. For the input signal source (a 10kHz, 0.1V peak sine wave riding on a 1.0V DC level) use the function generator with the DC offset enabled (pull out the DC OFFSET knob). Display vIN on oscilloscope channel 1; set the horizontal time scale to show a few cycles of the sine wave. To set the DC offs ...
MDC Foil Heater Solutions Data Sheet
... Two-‐ply foil construc@on is made of the following: : Carbon or Stainless Steel Fiber Heater is welded within a thermoplas@c jacket and then bonded between two pieces of aluminum foil giving overall ...
... Two-‐ply foil construc@on is made of the following: : Carbon or Stainless Steel Fiber Heater is welded within a thermoplas@c jacket and then bonded between two pieces of aluminum foil giving overall ...
Design and Implementation of a Stand-Alone Remote Terminal Unit Prachi Sharma
... information and are responsible for sending/receiving and executing the commands issued from the control centre. A remote terminal unit is a microprocessor-controlled electronic device that interfaces objects in the physical world to a central unit or SCADA by transmitting the required data to the s ...
... information and are responsible for sending/receiving and executing the commands issued from the control centre. A remote terminal unit is a microprocessor-controlled electronic device that interfaces objects in the physical world to a central unit or SCADA by transmitting the required data to the s ...
Chapter 3 VOLTAGE CONTROL
... 1.3 AC EXCITATION SYSTEMS In AC excitation system, the DC generator is replaced by an alternator of sufficient rating, so that it can supply the required field current to the field of the main synchronous generator. In this scheme, three phase alternator voltage is rectified and the necessary DC su ...
... 1.3 AC EXCITATION SYSTEMS In AC excitation system, the DC generator is replaced by an alternator of sufficient rating, so that it can supply the required field current to the field of the main synchronous generator. In this scheme, three phase alternator voltage is rectified and the necessary DC su ...
Switched Reluctance Generator Output Voltage Ripple Reduction Yun Wang
... load voltage build-up and load changes, and the regulation time is relatively long; it can be seen from the simulation test curve analysis in Figure 5 that the output voltage in the traditional sliding mode controller does not have secondary overshoot, but a certain buffeting exists when tending to ...
... load voltage build-up and load changes, and the regulation time is relatively long; it can be seen from the simulation test curve analysis in Figure 5 that the output voltage in the traditional sliding mode controller does not have secondary overshoot, but a certain buffeting exists when tending to ...
RF1 User Manual - HDR Power Systems
... Two diagnostic indicators (LEDs) are provided: Control Power (Red), lights when control power is applied; Command Signal (Green), varies in brilliance with command signal.. ...
... Two diagnostic indicators (LEDs) are provided: Control Power (Red), lights when control power is applied; Command Signal (Green), varies in brilliance with command signal.. ...
TPS54372 数据资料 dataSheet 下载
... trace to the VSENSE and COMP pins. Do not place these components too close to the PH trace. Due to the size of the IC package and the device pinout, they have to be routed somewhat close, but maintain as much separation as possible while still keeping the layout compact. Connect the bias capacitor f ...
... trace to the VSENSE and COMP pins. Do not place these components too close to the PH trace. Due to the size of the IC package and the device pinout, they have to be routed somewhat close, but maintain as much separation as possible while still keeping the layout compact. Connect the bias capacitor f ...
A 10 Volt “Turnkey” Programmable Josephson Voltage Standard for
... (483 597.9 GHz/V). For PJVS circuits, the barriers are chosen so that the junctions have singlevalued current-voltage characteristics, and the voltage steps do not share any common current bias range. When a PJVS circuit is operated, the arrays of junctions are biased at a fixed microwave frequency, ...
... (483 597.9 GHz/V). For PJVS circuits, the barriers are chosen so that the junctions have singlevalued current-voltage characteristics, and the voltage steps do not share any common current bias range. When a PJVS circuit is operated, the arrays of junctions are biased at a fixed microwave frequency, ...
Install Guide
... capability to pull the input below 1 VDC to counteract the pull up of 1 mADC. Typically, dry contacts (0 V) are used to eliminate the need for an external power supply to power the contacts on the controller. One end of the switch or contact will need to be connected to terminal “G” and the other to ...
... capability to pull the input below 1 VDC to counteract the pull up of 1 mADC. Typically, dry contacts (0 V) are used to eliminate the need for an external power supply to power the contacts on the controller. One end of the switch or contact will need to be connected to terminal “G” and the other to ...
AN2528
... To keep the transformer size very small and to get a very effective cost solution, we prefer to slightly increase the minimum working frequency in order to decrease the primary inductance. In order to have a 15 mH inductance and to keep an EF20 core, a lot of turns are needed on the primary side. Th ...
... To keep the transformer size very small and to get a very effective cost solution, we prefer to slightly increase the minimum working frequency in order to decrease the primary inductance. In order to have a 15 mH inductance and to keep an EF20 core, a lot of turns are needed on the primary side. Th ...
MP1470H - Monolithic Power System
... same operation in every clock cycle to regulate the output voltage. If within 87% of one PWM period, VILsense does not reach the value set by VCOMP, the HS power MOSFET will be forced off. Internal Regulator The 5V internal regulator powers most of the internal circuits. This regulator takes VIN and ...
... same operation in every clock cycle to regulate the output voltage. If within 87% of one PWM period, VILsense does not reach the value set by VCOMP, the HS power MOSFET will be forced off. Internal Regulator The 5V internal regulator powers most of the internal circuits. This regulator takes VIN and ...
KF3617641768
... Recent development of fast switching semiconductor devices like IGBT, has brought high frequency switching operations to power electronic equipments there by improving the dynamic performance of PWM inverter fed ac motor drives. Moreover, this development created several unexpected problems such as ...
... Recent development of fast switching semiconductor devices like IGBT, has brought high frequency switching operations to power electronic equipments there by improving the dynamic performance of PWM inverter fed ac motor drives. Moreover, this development created several unexpected problems such as ...
CIRCUIT FUNCTION AND BENEFITS
... Low power, precision current sources (if the current flows into the load) or current sinks (if the current flows out of the load) used in pulse oximeter designs are required to deliver a few decades of milliamps (hundreds of milliamps for legacy products). The active elements in these circuits are a ...
... Low power, precision current sources (if the current flows into the load) or current sinks (if the current flows out of the load) used in pulse oximeter designs are required to deliver a few decades of milliamps (hundreds of milliamps for legacy products). The active elements in these circuits are a ...
EM6K1
... No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Up ...
... No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Up ...
Voltage regulator
A voltage regulator is designed to automatically maintain a constant voltage level. A voltage regulator may be a simple ""feed-forward"" design or may include negative feedback control loops. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC voltages.Electronic voltage regulators are found in devices such as computer power supplies where they stabilize the DC voltages used by the processor and other elements. In automobile alternators and central power station generator plants, voltage regulators control the output of the plant. In an electric power distribution system, voltage regulators may be installed at a substation or along distribution lines so that all customers receive steady voltage independent of how much power is drawn from the line.