S270-20-3 (Discontinued)
... device used in conjunction with source-side protective devices such as reclosers or circuit breakers, to automatically isolate faulted sections of electrical distribution systems. The sectionalizer senses current flow above a preset level, and, when the source-side protective device opens to de-ener ...
... device used in conjunction with source-side protective devices such as reclosers or circuit breakers, to automatically isolate faulted sections of electrical distribution systems. The sectionalizer senses current flow above a preset level, and, when the source-side protective device opens to de-ener ...
Squirrel Range Technical Notes
... degraded manner. Run self test in SquirrelView diagnostics to view cause ...
... degraded manner. Run self test in SquirrelView diagnostics to view cause ...
Ch. 6 Combination Circuits
... equivalent resistance (REQ) of each parallel section in the circuit. Redraw the simplified circuit. 2. Calculate the total resistance (RT) of the circuit by adding all REQ’s to the other series resistances. 3. Calculate the total current (IT) using RT in Ohm’s law. 4. Calculate the voltage drop acro ...
... equivalent resistance (REQ) of each parallel section in the circuit. Redraw the simplified circuit. 2. Calculate the total resistance (RT) of the circuit by adding all REQ’s to the other series resistances. 3. Calculate the total current (IT) using RT in Ohm’s law. 4. Calculate the voltage drop acro ...
FAN6751MR Highly-Integrated Green-Mode PWM Controller FA N
... linearly decrease the switching frequency at light-load conditions. To avoid acoustic-noise problems, the minimum PWM frequency is set above 18KHz. This green-mode function enables the power supply to meet international power conservation requirements. With the internal high-voltage startup circuitr ...
... linearly decrease the switching frequency at light-load conditions. To avoid acoustic-noise problems, the minimum PWM frequency is set above 18KHz. This green-mode function enables the power supply to meet international power conservation requirements. With the internal high-voltage startup circuitr ...
BDTIC C C M - P F C
... factor correction converters. It is suitable for wide range line input applications from 85 to 265 VAC with overall efficiency above 90%. The IC supports converters in boost topology and it operates in continuous conduction mode (CCM) with average current control. The IC operates with a cascaded con ...
... factor correction converters. It is suitable for wide range line input applications from 85 to 265 VAC with overall efficiency above 90%. The IC supports converters in boost topology and it operates in continuous conduction mode (CCM) with average current control. The IC operates with a cascaded con ...
TRANSPAK T713 ™ RTD Input Isolating, Field Configurable
... The T713 is designed for installation in industrial field environments. A sealed, diecast aluminum housing protects against corrosion, moisture, dust and electrical noise such as radiofrequency (RFI) and electromagnetic (EMI) interference. All circuit boards are urethane coated for environmental pro ...
... The T713 is designed for installation in industrial field environments. A sealed, diecast aluminum housing protects against corrosion, moisture, dust and electrical noise such as radiofrequency (RFI) and electromagnetic (EMI) interference. All circuit boards are urethane coated for environmental pro ...
STUDY OF VARIOUS ELECTRICAL SYMBOLS AND TOOLS
... The positive terminal of the meter, marked + or coloured red should be connected nearest to + on the battery or power supply. The negative terminal of the meter, marked - or coloured black should be connected nearest to - on the battery or power supply. Wattmeter:The Wattmeter is an instrument for ...
... The positive terminal of the meter, marked + or coloured red should be connected nearest to + on the battery or power supply. The negative terminal of the meter, marked - or coloured black should be connected nearest to - on the battery or power supply. Wattmeter:The Wattmeter is an instrument for ...
NTE74HCT00 Integrated Circuit TTL − High Speed CMOS, Quad 2
... silicon−gate CMOS technology which provides the inherent benefits of CMOS − low quiescent power and wide power supply range. This device is input and output characteristic and pinout compatible with standard NTE74LS logic families. All inputs are protected from static discharge damage by internal di ...
... silicon−gate CMOS technology which provides the inherent benefits of CMOS − low quiescent power and wide power supply range. This device is input and output characteristic and pinout compatible with standard NTE74LS logic families. All inputs are protected from static discharge damage by internal di ...
It is defined as the percentage change in the output voltage from a
... 10. What is the basic principle of switching voltage regulator[AUC April 2008] In a switching regulator the series pass transistor is used as a switch. It is operated in either cut –off or saturation region. In cut-off region the current is very small while in saturation region the voltage across tr ...
... 10. What is the basic principle of switching voltage regulator[AUC April 2008] In a switching regulator the series pass transistor is used as a switch. It is operated in either cut –off or saturation region. In cut-off region the current is very small while in saturation region the voltage across tr ...
Pulse Width Mod A/D Conversion Techniques w
... tend to cancel each other at mid range voltages. At near GND and VCC input voltages the offsets are minimal due to the very small voltage drop across the resistor. If the error is undesirable, the offset voltage can be reduced by paralleling outputs with the same levels together, or by using a CMOS ...
... tend to cancel each other at mid range voltages. At near GND and VCC input voltages the offsets are minimal due to the very small voltage drop across the resistor. If the error is undesirable, the offset voltage can be reduced by paralleling outputs with the same levels together, or by using a CMOS ...
ADP2121 500 mA, 6 MHz, Synchronous Step-Down, DC-to-DC Converter Preliminary Technical Data
... conditions, the ADP2121 can automatically enter a power saving mode that utilizes pulse-frequency modulation (PFM) to reduce the effective switching frequency and ensure the longest battery life in portable applications. During logic controlled shutdown (EN = 0), the input is disconnected from the o ...
... conditions, the ADP2121 can automatically enter a power saving mode that utilizes pulse-frequency modulation (PFM) to reduce the effective switching frequency and ensure the longest battery life in portable applications. During logic controlled shutdown (EN = 0), the input is disconnected from the o ...
AD7170 数据手册DataSheet下载
... access the data register of the ADC. Eight status bits accompany each data read. See Figure 13 for further details. The DOUT/RDY falling edge can be used as an interrupt to a processor, indicating that new data is available. If the data is not read after the conversion, the pin goes high before the ...
... access the data register of the ADC. Eight status bits accompany each data read. See Figure 13 for further details. The DOUT/RDY falling edge can be used as an interrupt to a processor, indicating that new data is available. If the data is not read after the conversion, the pin goes high before the ...
laboratory module
... Selection of Signal Input Couplings: Many kinds of signals can be measured such as dc, ac, and mixed signals. To observe these signals correctly, an adequate signal input coupling must be selected with the AC-GND-DC switch. Selecting of Sensitivity For accurate measurement of signal waveforms, it is ...
... Selection of Signal Input Couplings: Many kinds of signals can be measured such as dc, ac, and mixed signals. To observe these signals correctly, an adequate signal input coupling must be selected with the AC-GND-DC switch. Selecting of Sensitivity For accurate measurement of signal waveforms, it is ...
Chapter 1 - Additional Notes
... a specific known voltage is applied from the meter across the diode. With the diode check function a good diode will show approximately .7 V or .3 V when forward biased. When checking in reverse bias the full applied testing voltage will be seen on the display. ...
... a specific known voltage is applied from the meter across the diode. With the diode check function a good diode will show approximately .7 V or .3 V when forward biased. When checking in reverse bias the full applied testing voltage will be seen on the display. ...
FSEZ1317 Primary-Side-Regulation PWM with POWER MOSFET Integrated
... applications. The HV pin is connected to the line input or bulk capacitor through a resistor, RSTART (100kΩ recommended). During startup status, the internal startup circuit is enabled. Meanwhile, line input supplies the current, ISTARTUP, to charge the hold-up capacitor, CDD, through RSTART. When t ...
... applications. The HV pin is connected to the line input or bulk capacitor through a resistor, RSTART (100kΩ recommended). During startup status, the internal startup circuit is enabled. Meanwhile, line input supplies the current, ISTARTUP, to charge the hold-up capacitor, CDD, through RSTART. When t ...
ADE7751 数据手册DataSheet 下载
... These logic inputs are used to select one of four possible frequencies for the digital-to-frequency conversion. This offers the designer greater flexibility when designing the energy meter. See Selecting a Frequency for an Energy Meter Application section. These logic inputs are used to select one o ...
... These logic inputs are used to select one of four possible frequencies for the digital-to-frequency conversion. This offers the designer greater flexibility when designing the energy meter. See Selecting a Frequency for an Energy Meter Application section. These logic inputs are used to select one o ...
Multimeter
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A multimeter or a multitester, also known as a VOM (Volt-Ohm meter or Volt-Ohm-milliammeter ), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter would include basic features such as the ability to measure voltage, current, and resistance. Analog multimeters use a microammeter whose pointer moves over a scale calibrated for all the different measurements that can be made. Digital multimeters (DMM, DVOM) display the measured value in numerals, and may also display a bar of a length proportional to the quantity being measured. Digital multimeters are now far more common but analog multimeters are still preferable in some cases, for example when monitoring a rapidly varying value. A multimeter can be a hand-held device useful for basic fault finding and field service work, or a bench instrument which can measure to a very high degree of accuracy. They can be used to troubleshoot electrical problems in a wide array of industrial and household devices such as electronic equipment, motor controls, domestic appliances, power supplies, and wiring systems.Multimeters are available in a wide range of features and prices. Cheap multimeters can cost less than US$10, while laboratory-grade models with certified calibration can cost more than US$5,000.