9115 Multi Range DC Power Supply
... the OFF position and verify that the AC power cord, including the extension line, is compatible with the rated voltage/current and that there is sufficient circuit capacity for the power supply. Once verified, connect the cable firmly. WARNING: The included AC power cord is safety certified for this ...
... the OFF position and verify that the AC power cord, including the extension line, is compatible with the rated voltage/current and that there is sufficient circuit capacity for the power supply. Once verified, connect the cable firmly. WARNING: The included AC power cord is safety certified for this ...
Evaluation 3: Theory/Implementation Impedance Track Battery Fuel
... well-relaxed state is detected if dV/dt < 4 µV/s or maximal waiting time of 5 hours is exceeded. The first condition is satisfied in typical batteries after about 1 hour if DOD is between 0% and 80%, and 3–4 hours if DOD is above 80%. At a low temperature, relaxation takes a longer time. In order to ...
... well-relaxed state is detected if dV/dt < 4 µV/s or maximal waiting time of 5 hours is exceeded. The first condition is satisfied in typical batteries after about 1 hour if DOD is between 0% and 80%, and 3–4 hours if DOD is above 80%. At a low temperature, relaxation takes a longer time. In order to ...
LMV831 数据资料 dataSheet 下载
... sensitive to capacitive loading. The combination of a capacitive load placed at the output of an amplifier along with the amplifier’s output impedance creates a phase lag, which reduces the phase margin of the amplifier. If the phase margin is significantly reduced, the response will be under damped ...
... sensitive to capacitive loading. The combination of a capacitive load placed at the output of an amplifier along with the amplifier’s output impedance creates a phase lag, which reduces the phase margin of the amplifier. If the phase margin is significantly reduced, the response will be under damped ...
Overvoltage protection device with thermal shutdown
... STBP120 is in the undervoltage or overvoltage condition or thermal shutdown mode is active. When the input voltage and junction temperature is in specified range, the FLT output is in high impedance (Hi-Z) state. There is an additional 50 ms delay, tstart, between the power output is connected to th ...
... STBP120 is in the undervoltage or overvoltage condition or thermal shutdown mode is active. When the input voltage and junction temperature is in specified range, the FLT output is in high impedance (Hi-Z) state. There is an additional 50 ms delay, tstart, between the power output is connected to th ...
TIP140T / TIP141T / TIP142T NPN Epitaxial Silicon Darlington Transistor T IP
... Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com, under Sales Support. Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor ...
... Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com, under Sales Support. Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor ...
question bank - SIETK ECE Dept
... 9. The maximum efficiency of 50 KVA transformer is 97.4% and occurs at 90% of the full-load. Calculate the efficiency of transformer at (i). Full-load 0.8 power factor lagging (ii). Half full-load 0.9 power factor. 10. a)Why transformer rating is kva? ...
... 9. The maximum efficiency of 50 KVA transformer is 97.4% and occurs at 90% of the full-load. Calculate the efficiency of transformer at (i). Full-load 0.8 power factor lagging (ii). Half full-load 0.9 power factor. 10. a)Why transformer rating is kva? ...
Preparation of Papers for IUST International Journal of Engineering
... A number of these collapse phenomena were reported in France, Belgium, Sweden, Germany, Japan, and the United States [3, 4]. Voltage collapse is basically a dynamic phenomenon with rather slow dynamics in time domain from a few seconds to some minutes or more [5]. It is characterized by a slow varia ...
... A number of these collapse phenomena were reported in France, Belgium, Sweden, Germany, Japan, and the United States [3, 4]. Voltage collapse is basically a dynamic phenomenon with rather slow dynamics in time domain from a few seconds to some minutes or more [5]. It is characterized by a slow varia ...
74LCXR2245
... buffers with 3-STATE outputs and is intended for bus oriented applications. The device is designed for low voltage (2.5V and 3.3V) VCC applications with capability of interfacing to a 5V signal environment. The T/R input determines the direction of data flow through the device. The OE input disables ...
... buffers with 3-STATE outputs and is intended for bus oriented applications. The device is designed for low voltage (2.5V and 3.3V) VCC applications with capability of interfacing to a 5V signal environment. The T/R input determines the direction of data flow through the device. The OE input disables ...
MAX1807/MAX1808 Micropower Adjustable Overvoltage Protection Controllers General Description
... The MAX1808 has a TH input that turns off the P-channel switch if TH goes below 1V without affecting the fault latch. TH output is designed for low-battery detection. The comparator has 10% hysteresis, allowing the battery voltage to rise when the load is removed without reenabling the external P-ch ...
... The MAX1808 has a TH input that turns off the P-channel switch if TH goes below 1V without affecting the fault latch. TH output is designed for low-battery detection. The comparator has 10% hysteresis, allowing the battery voltage to rise when the load is removed without reenabling the external P-ch ...
Technical Comparison of On-line vs. Line-interactive UPS
... understood: battery back-up time, cost, size, manufacturer, number of outlets, manageability, etc. But there are also less visible factors that are not so easy to understand. One of the least understood, yet most discussed, is topology. The topology (internal design) of a UPS affects how it will ope ...
... understood: battery back-up time, cost, size, manufacturer, number of outlets, manageability, etc. But there are also less visible factors that are not so easy to understand. One of the least understood, yet most discussed, is topology. The topology (internal design) of a UPS affects how it will ope ...
D.J. Perreault, J. Hu, J.M. Rivas, Y. Han, O. Leitermann, R.C.N. Pilawa-Podgurski, A. Sagneri, and C.R. Sullivan, Opportunities and Challenges in Very High Frequency Power Conversion, 2009 IEEE Applied Power Electronics conference , Feb. 2009, pp. 1-14
... frequency and β stays approximately constant or decreases [44]. Thus, at sufficiently high frequency, the improvements from scaling frequency cease and then reverse, so there is a limit to the amount that frequency scaling can be used to reduce inductor size. To demonstrate this effect, we carry out ...
... frequency and β stays approximately constant or decreases [44]. Thus, at sufficiently high frequency, the improvements from scaling frequency cease and then reverse, so there is a limit to the amount that frequency scaling can be used to reduce inductor size. To demonstrate this effect, we carry out ...
Guide to Low Voltage Circuit-Breakers Standards
... specify low voltage circuit-breakers in accordance with BS EN 60898-1, BS EN 60898-2 and BS EN 60947-2. This guide should be read in conjunction with these standards as it provides additional explanation on each section. This guide has been produced by BEAMA’s Industrial & Single Phase Product Group ...
... specify low voltage circuit-breakers in accordance with BS EN 60898-1, BS EN 60898-2 and BS EN 60947-2. This guide should be read in conjunction with these standards as it provides additional explanation on each section. This guide has been produced by BEAMA’s Industrial & Single Phase Product Group ...
EMC Filters and Components Power Quality Products Surge
... Suited for applications using IEC 60320 C13 power leads, this free standing IEC320 style filter network includes an earth line choke and across the line VDR. They are typically a retrofit product where emissions and immunity issues have been discovered after design completion. Typical applications i ...
... Suited for applications using IEC 60320 C13 power leads, this free standing IEC320 style filter network includes an earth line choke and across the line VDR. They are typically a retrofit product where emissions and immunity issues have been discovered after design completion. Typical applications i ...
In other words, for a transformer there is no direct
... energy by inductive coupling between its winding circuits. This means that it transforms electrical energy from one circuit to another without any direct electrical connection and with the help of mutual induction between the windings. It transforms power from one circuit to another without changing ...
... energy by inductive coupling between its winding circuits. This means that it transforms electrical energy from one circuit to another without any direct electrical connection and with the help of mutual induction between the windings. It transforms power from one circuit to another without changing ...
Electrical ballast
An electrical ballast is a device intended to limit the amount of current in an electric circuit. A familiar and widely used example is the inductive ballast used in fluorescent lamps, to limit the current through the tube, which would otherwise rise to destructive levels due to the tube's negative resistance characteristic.Ballasts vary in design complexity. They can be as simple as a series resistor or inductor, capacitors, or a combination thereof or as complex as electronic ballasts used with fluorescent lamps and high-intensity discharge lamps.