IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) ISSN: , PP: 27-32 www.iosrjournals.org
... drives and automation systems [1]. In almost every application the squirrel cage Induction Motor is used. Whenever a squirrel-cage induction motor is started, the electrical system experiences a current surge, and the mechanical system experiences a torque surge. With line voltage applied to the mot ...
... drives and automation systems [1]. In almost every application the squirrel cage Induction Motor is used. Whenever a squirrel-cage induction motor is started, the electrical system experiences a current surge, and the mechanical system experiences a torque surge. With line voltage applied to the mot ...
TPS60251 数据资料 dataSheet 下载
... the small 4mm×4mm QFN package provide for a small total solution size. By combining independent control of three separate banks of backlight LEDs with low cost and weak flash capability, the TPS60251 helps designers minimize power consumption especially in light load conditions while reducing compon ...
... the small 4mm×4mm QFN package provide for a small total solution size. By combining independent control of three separate banks of backlight LEDs with low cost and weak flash capability, the TPS60251 helps designers minimize power consumption especially in light load conditions while reducing compon ...
Understanding Insulation Resistance Testing
... the differences in readings (see curves, Figure 2). Tests by this method are sometimes referred to as absorption tests. Good insulation shows a continual increase in resistance (see curve D) over a period of time (in the order of 5 to 10 minutes). This is caused by the absorption; good insulation sh ...
... the differences in readings (see curves, Figure 2). Tests by this method are sometimes referred to as absorption tests. Good insulation shows a continual increase in resistance (see curve D) over a period of time (in the order of 5 to 10 minutes). This is caused by the absorption; good insulation sh ...
R2 Series) DDTCxxxxLP (R1 Features
... Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically n ...
... Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically n ...
Considerations for Analog Input and Output
... ground connection for individual devices is usually provided by the power distribution ground connections. In some cases, a local dedicated ground connection may be provided for specific equipment or a particular laboratory. This is especially true for equipment that deals with high-frequency signal ...
... ground connection for individual devices is usually provided by the power distribution ground connections. In some cases, a local dedicated ground connection may be provided for specific equipment or a particular laboratory. This is especially true for equipment that deals with high-frequency signal ...
How You Can Build Your Own SCR/TRIAC Tester
... exceeds a certain threshold, the device will turns "on" and conducts current. The device will remain in the "on" state even after gate current is removed so long as current through the device remains above the holding current. Once the current falls below the holding current for an appropriate perio ...
... exceeds a certain threshold, the device will turns "on" and conducts current. The device will remain in the "on" state even after gate current is removed so long as current through the device remains above the holding current. Once the current falls below the holding current for an appropriate perio ...
Ground Fault Protection on neon secondaries
... ungrounded neutral systems." This experience is shared with our experience at our plant at Allanson. In 1988 we modernized our 600 volts distribution system by changing it from a delta secondary to wye (Y) grounded. Down time in our plant equipment has reduced dramatically since that time. Grounding ...
... ungrounded neutral systems." This experience is shared with our experience at our plant at Allanson. In 1988 we modernized our 600 volts distribution system by changing it from a delta secondary to wye (Y) grounded. Down time in our plant equipment has reduced dramatically since that time. Grounding ...
ADS805 数据资料 dataSheet 下载
... ADS805 for direct IF conversion eliminates the need of an analog mixer along with subsequent functions like amplifiers and filters, thus reducing system cost and complexity. ...
... ADS805 for direct IF conversion eliminates the need of an analog mixer along with subsequent functions like amplifiers and filters, thus reducing system cost and complexity. ...
MAX8568A/MAX8568B Complete Backup-Management ICs for Lithium and NiMH Batteries General Description
... multichemistry charger for small lithium-ion, lithium-manganese, LiVeO5, and NiMH batteries; 2) a small verylow-current step-up DC-DC converter that generates a boosted backup supply when the backup battery output is less than required; and 3) an LDO that supplies a second backup voltage to an addit ...
... multichemistry charger for small lithium-ion, lithium-manganese, LiVeO5, and NiMH batteries; 2) a small verylow-current step-up DC-DC converter that generates a boosted backup supply when the backup battery output is less than required; and 3) an LDO that supplies a second backup voltage to an addit ...
LTC6104 - High Voltage, High Side, Bi-Directional Current Sense Amplifier
... provided by the excellent device characteristics: ±450µV maximum offset and only 520µA of current consumption (typical at 12V). The LTC6104 operates on supplies from 4V to 60V. The LTC6104 monitors bi-directional current via the voltage across an external sense resistor (shunt resistor). This sense ...
... provided by the excellent device characteristics: ±450µV maximum offset and only 520µA of current consumption (typical at 12V). The LTC6104 operates on supplies from 4V to 60V. The LTC6104 monitors bi-directional current via the voltage across an external sense resistor (shunt resistor). This sense ...
Experiment #68 — Phase Locked Loops, the Basics
... voltage. The frequency of the VCO without any control signal applied is called the freerunning frequency, f0. Depending on the circuit design, the VCO may be designed so Background Loop Components that f0 occurs with zero dc voltage input and The phase locked loop (PLL) has its roots The PLL has thr ...
... voltage. The frequency of the VCO without any control signal applied is called the freerunning frequency, f0. Depending on the circuit design, the VCO may be designed so Background Loop Components that f0 occurs with zero dc voltage input and The phase locked loop (PLL) has its roots The PLL has thr ...
specialtopics_13
... When suppressor operates an arc in gap This arc must quenched as surge pass, or resistor will be destroyed In other cases the gap is not required Arresters vary depending on their voltage class & duty however has: Gaps, coils, valve elements (nonlinear res.) They are stacked in series & he ...
... When suppressor operates an arc in gap This arc must quenched as surge pass, or resistor will be destroyed In other cases the gap is not required Arresters vary depending on their voltage class & duty however has: Gaps, coils, valve elements (nonlinear res.) They are stacked in series & he ...
notes
... by the engineer to be any generator bus in the system. For the swing bus, we know |V| and . The fact that we know is the reason why it is sometimes called the reference bus. Physically, there is nothing special about the swing bus; in fact, it is a mathematical artifact of the solution procedure ...
... by the engineer to be any generator bus in the system. For the swing bus, we know |V| and . The fact that we know is the reason why it is sometimes called the reference bus. Physically, there is nothing special about the swing bus; in fact, it is a mathematical artifact of the solution procedure ...
Ameritron ALS-1300 1200-watt NO TUNE
... transmit, and be open circuit when receiving. Relay control voltage from the ALS-1300 is 12 volts positive with only 15 mA current. You should always check your transceiver’s manual, but almost any standard transceiver directly interfaces to this amplifier. 4.) Connect the OUT (output) port to the a ...
... transmit, and be open circuit when receiving. Relay control voltage from the ALS-1300 is 12 volts positive with only 15 mA current. You should always check your transceiver’s manual, but almost any standard transceiver directly interfaces to this amplifier. 4.) Connect the OUT (output) port to the a ...
Power Distribution Units
... shall be provided as indicated in construction drawings. If meter(s) are required, these shall be suitable for interfacing with building energy management systems that utilize BACnet communication protocols. Contractor to supply meter software and ...
... shall be provided as indicated in construction drawings. If meter(s) are required, these shall be suitable for interfacing with building energy management systems that utilize BACnet communication protocols. Contractor to supply meter software and ...
RI-R38
... The two terminals must be connected between the line under control and the earth of measure reference. The terminal 5 must be connected to the neutral conductor of the single-phase or the three-phase line of the line to control. If the three-phase network is at three wires, the terminal must be conn ...
... The two terminals must be connected between the line under control and the earth of measure reference. The terminal 5 must be connected to the neutral conductor of the single-phase or the three-phase line of the line to control. If the three-phase network is at three wires, the terminal must be conn ...
3.3-V ECL Differential Receiver (Rev. A)
... TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI ...
... TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.