Q-Astec - First transient power converter using switched
... Transient can be supported in the time that it takes to turn the FET On/Off When output current follows processor demand current, significant reduction in output capacitance can be observed The constant current source is derived from a Buck Converter driving a matrix Transformer configuration ...
... Transient can be supported in the time that it takes to turn the FET On/Off When output current follows processor demand current, significant reduction in output capacitance can be observed The constant current source is derived from a Buck Converter driving a matrix Transformer configuration ...
Homework 8
... (iv) Now let’s go to the inversion region. In the inversion region where you work with only the (np0/pp0)e term, which can be rewritten as eThe left side can be written as d(-2B)/dx. Thus, we have a differential equation describing how fast (2B) varies. Solve this equation with boun ...
... (iv) Now let’s go to the inversion region. In the inversion region where you work with only the (np0/pp0)e term, which can be rewritten as eThe left side can be written as d(-2B)/dx. Thus, we have a differential equation describing how fast (2B) varies. Solve this equation with boun ...
Potentiometer - Make Your Point
... resistor. Resistors provide electrical impedance to current flow, forcing a voltage drop across their terminals. Most resistors have a fixed resistance value, measured in ohms. A potentiometer functions much like a normal resistor, except that its resistance value can be changed, usually by rotating ...
... resistor. Resistors provide electrical impedance to current flow, forcing a voltage drop across their terminals. Most resistors have a fixed resistance value, measured in ohms. A potentiometer functions much like a normal resistor, except that its resistance value can be changed, usually by rotating ...
A Compact, Versatile 10 to 500 MC Oscillator
... will provide roughly 1 volt into 50 ohms and the last graduation will provide roughly 1 microvolt into 50 ohms. The attenuator piston is completely removeable, and the pickup loop, employing a ferrite core for maximum low frequency coupling, is completely encapsulated in a low dielectric constant re ...
... will provide roughly 1 volt into 50 ohms and the last graduation will provide roughly 1 microvolt into 50 ohms. The attenuator piston is completely removeable, and the pickup loop, employing a ferrite core for maximum low frequency coupling, is completely encapsulated in a low dielectric constant re ...
AP65500 Description Pin Assignments
... When the HS MOSFET is on, inductor current starts to increase. The current sense amplifier senses and amplifies the inductor current. Since the current mode control is subject to sub-harmonic oscillations that peak at half the switching frequency, ramp slope compensation is utilized. This will help ...
... When the HS MOSFET is on, inductor current starts to increase. The current sense amplifier senses and amplifies the inductor current. Since the current mode control is subject to sub-harmonic oscillations that peak at half the switching frequency, ramp slope compensation is utilized. This will help ...
Tech W Shop 1998 5kv
... 12 kV control unit and Measure capacitance, dissipation factor and Watts ...
... 12 kV control unit and Measure capacitance, dissipation factor and Watts ...
Slide
... A discrete circuit is constructed of components that are manufactured separately. Later, these components are connected together, by conductors like wires, in a circuit board or a printed circuit board (PCB). On the other hand, in an integrated circuit, the components and their interconnections are ...
... A discrete circuit is constructed of components that are manufactured separately. Later, these components are connected together, by conductors like wires, in a circuit board or a printed circuit board (PCB). On the other hand, in an integrated circuit, the components and their interconnections are ...
Evaluates: MAX1717 MAX1717 Evaluation Kit General Description Features
... One interesting experiment is to subject the output to large, fast load transients and observe the output with an oscilloscope. This requires careful instrumentation of the output using the supplied scope-probe jack. Accurate measurement of output ripple and load-transient response invariably requir ...
... One interesting experiment is to subject the output to large, fast load transients and observe the output with an oscilloscope. This requires careful instrumentation of the output using the supplied scope-probe jack. Accurate measurement of output ripple and load-transient response invariably requir ...
Wide Input Voltage, Eco-mode™, Single
... proprietary D-CAP™ mode control combined with an adaptive on-time architecture. This combination is ideal for building modern low duty ratio, ultra-fast load step response DC-DC converters. The output voltage ranges from 0.6 V to 5.5 V. The conversion input voltage range is from 3 V up to 28V. The D ...
... proprietary D-CAP™ mode control combined with an adaptive on-time architecture. This combination is ideal for building modern low duty ratio, ultra-fast load step response DC-DC converters. The output voltage ranges from 0.6 V to 5.5 V. The conversion input voltage range is from 3 V up to 28V. The D ...
CONVENTIONAL - Optical Smoke Beam Detector Model 6500R and
... to a conventional detector circuit. The Infra-Red transmitter generates a beam of light towards a high efficiency reflector. The reflector returns the beam to the receiver where an analysis of the received signal is made. The change in the strength of the received signal is used to determine the ala ...
... to a conventional detector circuit. The Infra-Red transmitter generates a beam of light towards a high efficiency reflector. The reflector returns the beam to the receiver where an analysis of the received signal is made. The change in the strength of the received signal is used to determine the ala ...
Considerations for the Application of Thyristor Controlled Series
... Reduced voltage fluctuations and voltage imbalance due to load variations In distribution systems, reactive power compensation is typically provided by shunt-connected components, such as SVC and STATCOM devices. Fixed series capacitors are clearly the most economical solution, but their optimal l ...
... Reduced voltage fluctuations and voltage imbalance due to load variations In distribution systems, reactive power compensation is typically provided by shunt-connected components, such as SVC and STATCOM devices. Fixed series capacitors are clearly the most economical solution, but their optimal l ...
Lecture 24: Oscillators. Clapp Oscillator. VFO Startup
... apply to steady state power at the frequency of oscillation. There are two general approaches to starting an oscillator: (1) repeated amplification of noise, or (2) with an external startup signal (as in super-regenerative receivers). If G > L , then noise that meets the phase criterion (11.6) will ...
... apply to steady state power at the frequency of oscillation. There are two general approaches to starting an oscillator: (1) repeated amplification of noise, or (2) with an external startup signal (as in super-regenerative receivers). If G > L , then noise that meets the phase criterion (11.6) will ...
INCREASE OF STRAIN GAGE OUTPUT VOLTAGE SIGNALS ACCURACY
... When strain gages are excited using voltage source, strain gages are heated (Joule’s law) and resistance change achieves stationary state after transient response to change in heating. Maximum voltage of strain gages excitation is defined as the maximum effective voltage which can be applied to the ...
... When strain gages are excited using voltage source, strain gages are heated (Joule’s law) and resistance change achieves stationary state after transient response to change in heating. Maximum voltage of strain gages excitation is defined as the maximum effective voltage which can be applied to the ...
A Custom Vibration Test Fixture Using a Subwoofer
... electro-mechanical system (MEMS) accelerometers can often be tested using the earth’s gravity or centrifuge apparatus. Testing the dynamic characteristics, however, requires the application of known vibrational acceleration inputs. Single frequency acceleration inputs are very useful to characterize ...
... electro-mechanical system (MEMS) accelerometers can often be tested using the earth’s gravity or centrifuge apparatus. Testing the dynamic characteristics, however, requires the application of known vibrational acceleration inputs. Single frequency acceleration inputs are very useful to characterize ...
INA121 数据资料 dataSheet 下载
... The 50kΩ term in Equation 1 comes from the sum of the two internal feedback resistors of A1 and A2. These on-chip metal film resistors are laser trimmed to accurate absolute values. The accuracy and temperature coefficient of these resistors are included in the gain accuracy and drift specifications ...
... The 50kΩ term in Equation 1 comes from the sum of the two internal feedback resistors of A1 and A2. These on-chip metal film resistors are laser trimmed to accurate absolute values. The accuracy and temperature coefficient of these resistors are included in the gain accuracy and drift specifications ...
FST3244 — 8-Bit Bus Switch Features Description
... 4. This parameter is guaranteed by design, but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical on resistance of the switch and the 50 pF load capacitance when driven by an ideal voltage source (zero output impedance). ...
... 4. This parameter is guaranteed by design, but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical on resistance of the switch and the 50 pF load capacitance when driven by an ideal voltage source (zero output impedance). ...
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.