MIT-240 Lab#5 - Optocouplers - Community College of Allegheny
... Figure #5a shows a type of digital input that is activated when it is shorted to ground. When left unconnected, the input is internally pulled to a high state (+5V) by R2. When the input is shorted to ground, the input is pulled to ground through R1. The +5V zener and R1 together provide protection ...
... Figure #5a shows a type of digital input that is activated when it is shorted to ground. When left unconnected, the input is internally pulled to a high state (+5V) by R2. When the input is shorted to ground, the input is pulled to ground through R1. The +5V zener and R1 together provide protection ...
Capacitor and EMI Considerations for New High Frequency
... a microprocessor, databusses, clock drivers, etc. usually swamps out switcher noise. This can be seen very simply by connecting a linear regulator temporarily in place of the switcher. Radiated noise using standard FCC methods, and supply line noise often show almost no change when the switcher is t ...
... a microprocessor, databusses, clock drivers, etc. usually swamps out switcher noise. This can be seen very simply by connecting a linear regulator temporarily in place of the switcher. Radiated noise using standard FCC methods, and supply line noise often show almost no change when the switcher is t ...
369faq_b1 - GE Grid Solutions
... I need to update the options for my 369/RRTD in the field, can I do this? Yes. All options of the 369/RRTD can be turned on or added in the field except for the Profibus and Ethernet options for the 369. To do this, contact the factory. ...
... I need to update the options for my 369/RRTD in the field, can I do this? Yes. All options of the 369/RRTD can be turned on or added in the field except for the Profibus and Ethernet options for the 369. To do this, contact the factory. ...
Measurement of Current with a Voltage DAQ
... the cost of the unit. Additional features for this type of data logger include an analog-to-digital (A/D) converter with 16-bit successive approximation. It should also have 8 single-ended channels with individual A/D on each channel. Typical ranges for the voltage inputs include ±1V, ±2V, ±5V and ± ...
... the cost of the unit. Additional features for this type of data logger include an analog-to-digital (A/D) converter with 16-bit successive approximation. It should also have 8 single-ended channels with individual A/D on each channel. Typical ranges for the voltage inputs include ±1V, ±2V, ±5V and ± ...
SST505 - Micross Components
... Peak Operating Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . POV = 50V 1. Absolute maximum ratings are limiting values above which serviceability may be impaired. 2. Pulsed, t = 2ms. Maximum VF where IF < 1.1IF(max). 3. Pulsed, t = 2ms. Continuous currents may vary. 4. Pulsed, t = 2ms. ...
... Peak Operating Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . POV = 50V 1. Absolute maximum ratings are limiting values above which serviceability may be impaired. 2. Pulsed, t = 2ms. Maximum VF where IF < 1.1IF(max). 3. Pulsed, t = 2ms. Continuous currents may vary. 4. Pulsed, t = 2ms. ...
BEWARE OF PHASE CONTROL INTO RESISTIVE LOADS
... The normal failure mode is nuisance power shut downs. The control will soft start to approximately 30% power, detect an extra zero cross pulse, shut down, then restart. ...
... The normal failure mode is nuisance power shut downs. The control will soft start to approximately 30% power, detect an extra zero cross pulse, shut down, then restart. ...
A New Integrated Circuit for Current Mode Control
... To more vividly illustrate the advantages of currentmode control, a relatively simple push-pull forward converter was designed using two interchangeable control sections, as shown in Figure 13. The control modules consist of (a) a UC1846 current-mode controller with associated circuitry, and (b) a c ...
... To more vividly illustrate the advantages of currentmode control, a relatively simple push-pull forward converter was designed using two interchangeable control sections, as shown in Figure 13. The control modules consist of (a) a UC1846 current-mode controller with associated circuitry, and (b) a c ...
1B22 数据手册DataSheet 下载
... Pressure Transmitter: In Figure 8, the 1B22 is used in a pressure transmitter application to provide complete inputoutput isolation and avoid signal errors due to ground loop currents. The process pressure is monitored with a strain gage type pressure transducer interfaced by the Analog Devices’ 1B3 ...
... Pressure Transmitter: In Figure 8, the 1B22 is used in a pressure transmitter application to provide complete inputoutput isolation and avoid signal errors due to ground loop currents. The process pressure is monitored with a strain gage type pressure transducer interfaced by the Analog Devices’ 1B3 ...
LM78S40 Universal Switching Regulator Subsystem
... regulator systems. The device consists of a temperature compensated voltage reference, a duty-cycle controllable oscillator with an active current limit circuit, an error amplifier, high current, high voltage output switch, a power diode and an uncommitted operational amplifier. The device can drive ...
... regulator systems. The device consists of a temperature compensated voltage reference, a duty-cycle controllable oscillator with an active current limit circuit, an error amplifier, high current, high voltage output switch, a power diode and an uncommitted operational amplifier. The device can drive ...
Test Procedure for the NCP4894 Evaluation Board
... The NCP4894 requires a differential signal to drive the audio amplifier. This is done using a waveform generator with a differential output signal. Set a sinewave differential signal on the input connector (J2). The middle point is connected to ground while INM and INP signals are in opposite phases ...
... The NCP4894 requires a differential signal to drive the audio amplifier. This is done using a waveform generator with a differential output signal. Set a sinewave differential signal on the input connector (J2). The middle point is connected to ground while INM and INP signals are in opposite phases ...
Amplifier Benefits Technical document
... Poor power quality from the utility supply in many residential wall outlets can restrict the performance of audio equipment. Line noise is an obvious example. Removing it will prevent unwanted signals from getting into the audio output or affecting video performance. Less understood are the effects ...
... Poor power quality from the utility supply in many residential wall outlets can restrict the performance of audio equipment. Line noise is an obvious example. Removing it will prevent unwanted signals from getting into the audio output or affecting video performance. Less understood are the effects ...
Buck converter
A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.