24-Channel I/O Card
... The I/O card Analog Inputs each consist of a current source and a multiplexed A/D converter with 12-bit resolution. The signal-input range is from 1 to 5 volts. A 4 to 20 milliAmp current input is accommodated with a socketed 250-ohm resistor (supplied). ...
... The I/O card Analog Inputs each consist of a current source and a multiplexed A/D converter with 12-bit resolution. The signal-input range is from 1 to 5 volts. A 4 to 20 milliAmp current input is accommodated with a socketed 250-ohm resistor (supplied). ...
MAX1747 Triple Charge-Pump TFT LCD DC-DC Converter General Description
... The MAX1747 triple charge-pump DC-DC converter provides the regulated voltages required by active matrix thin-film transistor (TFT) liquid-crystal displays (LCDs) in a low-profile TSSOP package. One highpower and two low-power charge pumps convert the +2.7V to +4.5V input supply voltage into three i ...
... The MAX1747 triple charge-pump DC-DC converter provides the regulated voltages required by active matrix thin-film transistor (TFT) liquid-crystal displays (LCDs) in a low-profile TSSOP package. One highpower and two low-power charge pumps convert the +2.7V to +4.5V input supply voltage into three i ...
IXDD404 - IXYS Power
... gradually. The resistor should be chosen so that the RC time constant will be 100us, where "C" is the Miller capacitance of the IXFN100N20. ...
... gradually. The resistor should be chosen so that the RC time constant will be 100us, where "C" is the Miller capacitance of the IXFN100N20. ...
RF Driven Plasma Lighting: the Next Revolution in Light
... devices. The RF-driven Plasma Light is a perfect example for novel applications that can be powered by RF energy in the industrial, scientific, medical (ISM) realm. Established technologies use RF to pump a gas discharge in a laser cavity (such as CO2 and exciter lasers). These “gas discharge” appli ...
... devices. The RF-driven Plasma Light is a perfect example for novel applications that can be powered by RF energy in the industrial, scientific, medical (ISM) realm. Established technologies use RF to pump a gas discharge in a laser cavity (such as CO2 and exciter lasers). These “gas discharge” appli ...
4.2.2 – Parallel Circuits NAME: DATE: PARTNERS:
... This parallel circuit can be thought of as two current loops (1 and 2), as indicated in the above diagram. Measure the current in the following places. Note: to measure current properly, the ammeter must be connected in series. ...
... This parallel circuit can be thought of as two current loops (1 and 2), as indicated in the above diagram. Measure the current in the following places. Note: to measure current properly, the ammeter must be connected in series. ...
Overview The function of the physical layer is to transmit data by
... Electrical power is usually delivered to a pole-mounted transformer. The transformer reduces the high voltages, used in the transmission, to the 120 or 240 volts used by typical consumer electrical appliances. ...
... Electrical power is usually delivered to a pole-mounted transformer. The transformer reduces the high voltages, used in the transmission, to the 120 or 240 volts used by typical consumer electrical appliances. ...
MP1470H - Monolithic Power System
... The device will enter CCM from DCM once the inductor current no longer drops to zero in a clock cycle. In CCM the internal 1MHz clock initiates the PWM cycle, the HS-FET turns on and remains on until VILsense reaches the value set by VCOMP, after a period of dead time, the LS-FET will turn on and re ...
... The device will enter CCM from DCM once the inductor current no longer drops to zero in a clock cycle. In CCM the internal 1MHz clock initiates the PWM cycle, the HS-FET turns on and remains on until VILsense reaches the value set by VCOMP, after a period of dead time, the LS-FET will turn on and re ...
AN-2126 LM5046 Based Eighth Brick
... gradually turns on the synchronous rectifiers to their steady-state duty cycle. This function keeps the synchronous rectifiers off until the error amplifier on the secondary side soft-starts, allowing a linear startup of the output voltage even into pre-biased loads. Then the SR output duty cycle is ...
... gradually turns on the synchronous rectifiers to their steady-state duty cycle. This function keeps the synchronous rectifiers off until the error amplifier on the secondary side soft-starts, allowing a linear startup of the output voltage even into pre-biased loads. Then the SR output duty cycle is ...
USB-Powered Li+ Charger General Description Features
... from all loops drive an internal linear regulator. The thermal loop modulates the current loop by limiting the charge current if the die temperature exceeds +125°C. The MAX1811 is in current mode when the BATT voltage is below the regulation set point and in voltage mode when the BATT voltage is nea ...
... from all loops drive an internal linear regulator. The thermal loop modulates the current loop by limiting the charge current if the die temperature exceeds +125°C. The MAX1811 is in current mode when the BATT voltage is below the regulation set point and in voltage mode when the BATT voltage is nea ...
Section_6_-_Summary_
... improves the resolution capabilities of the EMD method, in terms of detecting weak higher frequency modes, as well as separating closely spaced modal frequencies. In Chapter 21 reference is made to ideal supply conditions which allow recognising the frequencies and the origins of those interharmoni ...
... improves the resolution capabilities of the EMD method, in terms of detecting weak higher frequency modes, as well as separating closely spaced modal frequencies. In Chapter 21 reference is made to ideal supply conditions which allow recognising the frequencies and the origins of those interharmoni ...
Physics 2511 Laboratory Manual
... not touch or turn on the laboratory equipment until it has been explained by the professor and permission has been granted to get started. The equipment for the labs are set up for you in advance, so resist the urge to play with the equipment when you arrive, as you may hurt yourself or others, or d ...
... not touch or turn on the laboratory equipment until it has been explained by the professor and permission has been granted to get started. The equipment for the labs are set up for you in advance, so resist the urge to play with the equipment when you arrive, as you may hurt yourself or others, or d ...
Circuit Models for Anti-series and Anti
... frequency modification by introducing a DC component of about 50 volts in the excitation signal. This explanation suggests that a continuous voltage could stress the piezoelectric material changing its behavior, but probably has no connection with the real phenomenon on which this reduction of certa ...
... frequency modification by introducing a DC component of about 50 volts in the excitation signal. This explanation suggests that a continuous voltage could stress the piezoelectric material changing its behavior, but probably has no connection with the real phenomenon on which this reduction of certa ...
UC3851 数据资料 dataSheet 下载
... Develops linear ramp with slope defined externally by dT RRCR CR is normally selected ≤ CT and its value will have some effect upon valley duty cycle. Limiting the minimum value for ISENSE into pin 11 will establish a maximum duty cycle clamp. CR terminal can be used as an input port for current mod ...
... Develops linear ramp with slope defined externally by dT RRCR CR is normally selected ≤ CT and its value will have some effect upon valley duty cycle. Limiting the minimum value for ISENSE into pin 11 will establish a maximum duty cycle clamp. CR terminal can be used as an input port for current mod ...
AP8800A Description Pin Assignments
... This rising current produces a voltage ramp across RSET. The internal circuit of the AP8800A senses the voltage across RSET and applies a proportional voltage to the input of the internal comparator. When this voltage reaches an internally set upper threshold, the internal switch is turned off. The ...
... This rising current produces a voltage ramp across RSET. The internal circuit of the AP8800A senses the voltage across RSET and applies a proportional voltage to the input of the internal comparator. When this voltage reaches an internally set upper threshold, the internal switch is turned off. The ...
Telecommunications Earthing Training
... The selection of appropriate surge protection devices can be simplified if there was a basic understanding of key yardsticks, that can be used to size up a surge protection device and core technologies could be understood. This training will provide this understanding. a) Introducing the concepts of ...
... The selection of appropriate surge protection devices can be simplified if there was a basic understanding of key yardsticks, that can be used to size up a surge protection device and core technologies could be understood. This training will provide this understanding. a) Introducing the concepts of ...
MAX2686/MAX2688 GPS/GNSS Low-Noise Amplifiers General Description Features
... excellent linearity. ...
... excellent linearity. ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.