The Oscilloscope - School of Electronic and Communications
... Depending on how you set the vertical scale (volts/div control), an attenuator reduces the signal voltage or an amplifier increases the signal voltage. Next, the signal travels directly to the vertical deflection plates of the cathode ray tube (CRT). Voltage applied to these deflection plates causes ...
... Depending on how you set the vertical scale (volts/div control), an attenuator reduces the signal voltage or an amplifier increases the signal voltage. Next, the signal travels directly to the vertical deflection plates of the cathode ray tube (CRT). Voltage applied to these deflection plates causes ...
SMJE 2103
... generator is driven by a 500-hp diesel engine and is used as a standby or emergency generator. This machine can also be paralleled with the normal power supply (a very large power system) if desired. (a) What are the conditions required for paralleling the emergency generator with the existing power ...
... generator is driven by a 500-hp diesel engine and is used as a standby or emergency generator. This machine can also be paralleled with the normal power supply (a very large power system) if desired. (a) What are the conditions required for paralleling the emergency generator with the existing power ...
LM96000 Hardware Monitor with Integrated Fan Control (Rev. C)
... Voltage on Other Analog Inputs Input Current on Any Pin Package Input Current ...
... Voltage on Other Analog Inputs Input Current on Any Pin Package Input Current ...
Input Capacitor Selection Guide for MP2130 Application Note
... regulation. The MP2130 has a built-in soft-start that ramps up the output voltage at a controlled slew rate, avoiding overshoot at startup. When disabled, the MP2130 ramps down the internal reference thus linearly discharging the output. The soft-stop time is typically about 1ms. During soft-stop, t ...
... regulation. The MP2130 has a built-in soft-start that ramps up the output voltage at a controlled slew rate, avoiding overshoot at startup. When disabled, the MP2130 ramps down the internal reference thus linearly discharging the output. The soft-stop time is typically about 1ms. During soft-stop, t ...
induction-motor-notes
... which according to Lenz's law opposes the supply voltage. This induced e.m.f. is called back e.m.f. in case of synchronous motor. It is obtained as Ebph i.e. back e.m.f. per phase. This gets generated as the principle of alternator and hence alternating in nature and its magnitude can be calculated ...
... which according to Lenz's law opposes the supply voltage. This induced e.m.f. is called back e.m.f. in case of synchronous motor. It is obtained as Ebph i.e. back e.m.f. per phase. This gets generated as the principle of alternator and hence alternating in nature and its magnitude can be calculated ...
347_accepted version - OPUS at UTS
... According to the suggestion of reference [4], the current ripple should be limited to less than 10%. According to [5], it is recommended that the 100/120 Hz ripple component be limited to within 15% of the total output and the 50/60 Hz ripple component be limited to within 10% from 10% to 100% loads ...
... According to the suggestion of reference [4], the current ripple should be limited to less than 10%. According to [5], it is recommended that the 100/120 Hz ripple component be limited to within 15% of the total output and the 50/60 Hz ripple component be limited to within 10% from 10% to 100% loads ...
Welch Allyn Pediatric/Infant Scale Service Manual
... The output signal from the load cells is applied to the protection network consisting of diodes CR4/CR5/CR6/CR7. These diodes prevent destructive high voltages caused by static discharges from damaging U4. A high frequency filter, formed by L1/L2/C9, C10 couples the weight signal to the input of U4. ...
... The output signal from the load cells is applied to the protection network consisting of diodes CR4/CR5/CR6/CR7. These diodes prevent destructive high voltages caused by static discharges from damaging U4. A high frequency filter, formed by L1/L2/C9, C10 couples the weight signal to the input of U4. ...
Not Recommended for New Designs
... Noise or undesired parasitic AC feedback cause most high-speed comparators to oscillate in the linear region (i.e., when the voltage on one input is at or near the voltage on the other input). The MAX907/MAX908/ MAX909 eliminate this problem by incorporating internal hysteresis. When the two compara ...
... Noise or undesired parasitic AC feedback cause most high-speed comparators to oscillate in the linear region (i.e., when the voltage on one input is at or near the voltage on the other input). The MAX907/MAX908/ MAX909 eliminate this problem by incorporating internal hysteresis. When the two compara ...
MC33812, Multifunctional Ignition and Injector Driver
... The 33812 is an engine control analog power IC intended for motorcycle and other single/dual cylinder small engine control applications. The IC consists of three integrated low-side drivers, one pre-driver, a +5.0 V, voltage pre-regulator, an MCU watchdog circuit, an ISO 9141 K-Line interface, and a ...
... The 33812 is an engine control analog power IC intended for motorcycle and other single/dual cylinder small engine control applications. The IC consists of three integrated low-side drivers, one pre-driver, a +5.0 V, voltage pre-regulator, an MCU watchdog circuit, an ISO 9141 K-Line interface, and a ...
Power-Supply Design for High-Speed ADCs
... System designers are increasingly faced with the challenge of maximizing power savings in their designs without compromising the performance of any system components like a high-speed data converter. Designers may move to battery-powered operation for applications like a handheld, software-defined r ...
... System designers are increasingly faced with the challenge of maximizing power savings in their designs without compromising the performance of any system components like a high-speed data converter. Designers may move to battery-powered operation for applications like a handheld, software-defined r ...
WECC-0100 TPL-001-WECC-CRT-3 Response to Comment
... Requirement WR1.2 establishes a reasonable target that could be met by each entity without incurring costs that would outweigh the benefits. Many legacy systems were not designed to meet a more stringent threshold. The eight percent target of Requirement WR1.2 is established not by a technical study ...
... Requirement WR1.2 establishes a reasonable target that could be met by each entity without incurring costs that would outweigh the benefits. Many legacy systems were not designed to meet a more stringent threshold. The eight percent target of Requirement WR1.2 is established not by a technical study ...
ELECTRICIAN_New_Syll
... materials. Para & Diamagnetism and Ferro magnetic materials. Principle of electro-magnetism, Maxwell’s corkscrew rule, Fleming’s left & right hand rules, Magnetic field of current carrying Demonstration on effect of conductors, loop & solenoid. eddy current on different MMF, Flux density, reluctance ...
... materials. Para & Diamagnetism and Ferro magnetic materials. Principle of electro-magnetism, Maxwell’s corkscrew rule, Fleming’s left & right hand rules, Magnetic field of current carrying Demonstration on effect of conductors, loop & solenoid. eddy current on different MMF, Flux density, reluctance ...
ADM2482E 数据手册DataSheet 下载
... The ADM2482E/ADM2487E are isolated data transceivers with ±15 kV ESD protection and are suitable for high speed, halfduplex or full-duplex communication on multipoint transmission lines. For half-duplex operation, the transmitter outputs and receiver inputs share the same transmission line. Transmit ...
... The ADM2482E/ADM2487E are isolated data transceivers with ±15 kV ESD protection and are suitable for high speed, halfduplex or full-duplex communication on multipoint transmission lines. For half-duplex operation, the transmitter outputs and receiver inputs share the same transmission line. Transmit ...
a 8-Bit Octal, 4-Quadrant Multiplying, CMOS TrimDAC AD8842
... current conveyor amplifier design performs the four-quadrant multiplying function with a single amplifier at the output of the current steering digital-to-analog converter. This approach offers an improved constant input resistance performance versus previous voltage switched DACs used in TrimDAC ci ...
... current conveyor amplifier design performs the four-quadrant multiplying function with a single amplifier at the output of the current steering digital-to-analog converter. This approach offers an improved constant input resistance performance versus previous voltage switched DACs used in TrimDAC ci ...
VIII .Typical Transmission Line Surge Arrester Installation
... because the lightning surge over voltage is dominant factor for the insulation design of power system and substation. Whenever lightning strikes the top of a transmission tower, a lightning current flows down to the bottom of the tower and causes a tower voltage to raise and results in a back-flasho ...
... because the lightning surge over voltage is dominant factor for the insulation design of power system and substation. Whenever lightning strikes the top of a transmission tower, a lightning current flows down to the bottom of the tower and causes a tower voltage to raise and results in a back-flasho ...
LT1014D-EP
... Furthermore, the LT1014D has specific circuitry that addresses the difficulties of single-supply operation, both at the input and at the output. At the input, the driving signal can fall below 0 V, either inadvertently or on a transient basis. If the input is more than a few hundred millivolts below ...
... Furthermore, the LT1014D has specific circuitry that addresses the difficulties of single-supply operation, both at the input and at the output. At the input, the driving signal can fall below 0 V, either inadvertently or on a transient basis. If the input is more than a few hundred millivolts below ...
LM2940QML 1A Low Dropout Regulator (Rev. B)
... Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For specified specifications and test conditions, see the Electrical Characteristics. The ens ...
... Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For specified specifications and test conditions, see the Electrical Characteristics. The ens ...
High-Precision, Low-Noise, Rail-to-Rail Output, 11MHz JFET Op Amp OPA140 OPA2140,
... Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported. Input ...
... Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported. Input ...
MAX531/MAX538/MAX539 +5V, Low-Power, Voltage-Output, Serial 12-Bit DACs _______________General Description
... load current. If any other connection is made to REFOUT, ensure that the total load current is less than 100µA to avoid gain errors. For applications requiring very low-noise performance, connect a 33µF capacitor from REFOUT to AGND. If noise is not a concern, a lower value capacitor (3.3µF min) may ...
... load current. If any other connection is made to REFOUT, ensure that the total load current is less than 100µA to avoid gain errors. For applications requiring very low-noise performance, connect a 33µF capacitor from REFOUT to AGND. If noise is not a concern, a lower value capacitor (3.3µF min) may ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.