Measurement methods
... to have a Is current equal to 0; this is possible if the point “B” is at the same voltage of point “A” • The Guard is a “voltage follower” and is used to isolate the tested component from the rest of the circuit. ...
... to have a Is current equal to 0; this is possible if the point “B” is at the same voltage of point “A” • The Guard is a “voltage follower” and is used to isolate the tested component from the rest of the circuit. ...
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41
... Motorized circuit breakers (face-marked REMOTELY OPERATED) are individually actuated by a low-voltage command from a remote DMX control device. (light board) Each of the numbered LEDs, 1 thru 10, indicate the status of the attached breaker. ...
... Motorized circuit breakers (face-marked REMOTELY OPERATED) are individually actuated by a low-voltage command from a remote DMX control device. (light board) Each of the numbered LEDs, 1 thru 10, indicate the status of the attached breaker. ...
Generator Protection
... non-switched three zone distance protection. • The other protection may be a phase segregated current differential (this may require digital communication) phase comparison, directional comparison type or a carrier aided non-switched distance protection. • If Main-I and Main-II are both distance pro ...
... non-switched three zone distance protection. • The other protection may be a phase segregated current differential (this may require digital communication) phase comparison, directional comparison type or a carrier aided non-switched distance protection. • If Main-I and Main-II are both distance pro ...
AC versus DC Measurement Methods for Low
... LO potential. The CMRR specification for a typical lock-in amplifier is 100dB (a factor of 105 rejection). In actual measurement practice, this is more likely to fall in the range of 85–90dB. By comparison, nanovoltmeters are available with CMRR specifications of 140dB. Combined with a modern curren ...
... LO potential. The CMRR specification for a typical lock-in amplifier is 100dB (a factor of 105 rejection). In actual measurement practice, this is more likely to fall in the range of 85–90dB. By comparison, nanovoltmeters are available with CMRR specifications of 140dB. Combined with a modern curren ...
TOP232-234 TOPSwitch-FXFamily
... cost effectively integrates many new functions that reduce system cost and, at the same time, improve design flexibility, performance and energy efficiency. Like TOPSwitch, the high-voltage power MOSFET, PWM control, fault protection and other control circuitry are all integrated onto a single CMOS ...
... cost effectively integrates many new functions that reduce system cost and, at the same time, improve design flexibility, performance and energy efficiency. Like TOPSwitch, the high-voltage power MOSFET, PWM control, fault protection and other control circuitry are all integrated onto a single CMOS ...
IEEE white paper
... [7]. The high-frequency currents generate two phenomena in conductors: skin effect and proximity effect. Due to the skin effect the current, which flow through the conductor, is pushed towards the surface. When the current is divided among a group of parallel conductors the sharing of the total curr ...
... [7]. The high-frequency currents generate two phenomena in conductors: skin effect and proximity effect. Due to the skin effect the current, which flow through the conductor, is pushed towards the surface. When the current is divided among a group of parallel conductors the sharing of the total curr ...
DESDALC5LP ADVAN CE IN F O RM ATIO N ADVANCED
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
ADP1877 英文数据手册DataSheet 下载
... frequency, fOSC, set by the FREQ pin. The controller operates in forced PWM when a signal is detected at SYNC or when SYNC is high. The resulting switching frequency is ½ of the SYNC frequency. When SYNC is low or left floating, the controller operates in pulse skip mode. Connect to Main Power Suppl ...
... frequency, fOSC, set by the FREQ pin. The controller operates in forced PWM when a signal is detected at SYNC or when SYNC is high. The resulting switching frequency is ½ of the SYNC frequency. When SYNC is low or left floating, the controller operates in pulse skip mode. Connect to Main Power Suppl ...
P83567
... CAUTION: Check the installation instructions of the manufacturers of other equipment used in the system for any guidelines or restrictions on wiring and/or locating Notification Appliance Circuits (NAC) and notification appliances. Some system communication circuits and/or audio circuits, for exampl ...
... CAUTION: Check the installation instructions of the manufacturers of other equipment used in the system for any guidelines or restrictions on wiring and/or locating Notification Appliance Circuits (NAC) and notification appliances. Some system communication circuits and/or audio circuits, for exampl ...
Practical Realisation and Analysis of Spiral Inductors for Wireless
... inductance value. For windings made with pitch (constant or variable) uninsulated wires are usually used, resulting small values for the parasitic capacitance. For the multilayer windings the self inductance value is higher, requiring the same area. For this type of winding there is a higher value o ...
... inductance value. For windings made with pitch (constant or variable) uninsulated wires are usually used, resulting small values for the parasitic capacitance. For the multilayer windings the self inductance value is higher, requiring the same area. For this type of winding there is a higher value o ...
TPS60500 数据资料 dataSheet 下载
... over the entire input and output voltage range. Regulation is achieved by sensing the output voltage and enabling the internal switches as needed to maintain the selected output voltage. This skip-mode regulation is used over a load range from 0 mA to 150 mA. At a higher output current, the device w ...
... over the entire input and output voltage range. Regulation is achieved by sensing the output voltage and enabling the internal switches as needed to maintain the selected output voltage. This skip-mode regulation is used over a load range from 0 mA to 150 mA. At a higher output current, the device w ...
Chapter 13: Electric Circuits 1. A household circuit rated at 120 Volts
... 24. A 100 watt bulb is rated for use in a 120 volt line. During a brownout the actual voltage drops to 100 V. The actual power dissipated in the bulb under these conditions is A. 120 W. B. 100 W. C. 83.3 W. D. 69.4 W. E. 48.2 W. Answer: D 25. A heater is rated to dissipate 1800 W when connected to ...
... 24. A 100 watt bulb is rated for use in a 120 volt line. During a brownout the actual voltage drops to 100 V. The actual power dissipated in the bulb under these conditions is A. 120 W. B. 100 W. C. 83.3 W. D. 69.4 W. E. 48.2 W. Answer: D 25. A heater is rated to dissipate 1800 W when connected to ...
Electromagnetic Noise Simulation Technology for
... To obtain results, radiation noise simulation requires more labor and time than conduction noise simulation, so we consider applying it only to those targets for which it is more effective. This subsection presents a case in which it is applied to the design of housing of power electronics equipment ...
... To obtain results, radiation noise simulation requires more labor and time than conduction noise simulation, so we consider applying it only to those targets for which it is more effective. This subsection presents a case in which it is applied to the design of housing of power electronics equipment ...
Using VRC_CTL to Control an External VDD_LV Supply on the
... its products for any particular purpose, nor does NXP assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters that may be provided in ...
... its products for any particular purpose, nor does NXP assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters that may be provided in ...
MAX1739/MAX1839 Wide Brightness Range CCFL Backlight Controllers General Description
... (CCFLs) using the industry-proven Royer oscillator inverter architecture. The Royer architecture provides near sinusoidal drive waveforms over the entire input range to maximize the life of CCFLs. The MAX1739/ MAX1839 optimize this architecture to work over a wide input voltage range, achieve high e ...
... (CCFLs) using the industry-proven Royer oscillator inverter architecture. The Royer architecture provides near sinusoidal drive waveforms over the entire input range to maximize the life of CCFLs. The MAX1739/ MAX1839 optimize this architecture to work over a wide input voltage range, achieve high e ...
FMC Electrical Course
... (a) Normal operations (b) Mechanical failure or abnormal operation of machinery or equipment (c) combustible dust of an electrically conductive nature may be present. ...
... (a) Normal operations (b) Mechanical failure or abnormal operation of machinery or equipment (c) combustible dust of an electrically conductive nature may be present. ...
- IEEE PES Resource Center
... manufacturer and type of excitation system (e.g. static, brushless, rotating dc, etc.) ...
... manufacturer and type of excitation system (e.g. static, brushless, rotating dc, etc.) ...
Electrical substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels.Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control.A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. The word substation comes from the days before the distribution system became a grid. As central generation stations became larger, smaller generating plants were converted to distribution stations, receiving their energy supply from a larger plant instead of using their own generators. The first substations were connected to only one power station, where the generators were housed, and were subsidiaries of that power station.