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1.2 MHz Step-up Converter for Display Bias
1.2 MHz Step-up Converter for Display Bias

... As ILOAD is reduced, the energy required in the inductor, L1, also reduces, resulting in the inductor current dropping to zero for low load current levels. This is known as Discontinuous mode operation and results in some low-frequency ripple. The average load current will, however, remain regulated ...
High Common-Mode Voltage, Programmable Gain Difference Amplifier AD628
High Common-Mode Voltage, Programmable Gain Difference Amplifier AD628

... A precision 10 kΩ resistor connected to an external pin is provided for either a low-pass filter or to attenuate large differential input signals. A single capacitor implements a lowpass filter. The AD628 operates from single and dual supplies and is available in an 8-lead SOIC_N or an 8-lead MSOP. ...
TVS Diode Array SP721 Lead-Free/Green Datasheet
TVS Diode Array SP721 Lead-Free/Green Datasheet

Measuring Low Voltage Signals Using an Oscilloscope
Measuring Low Voltage Signals Using an Oscilloscope

... ı If you scale them across just a few divisions you end up with the issue discussed in the previous slide ı Using multiple grids allows you to maintain the full ADC resolution for each waveform and easily view them ...
CSP1-F Combined Protection and Control System Performance and
CSP1-F Combined Protection and Control System Performance and

TSL257T HIGH-SENSITIVITY LIGHT-TO
TSL257T HIGH-SENSITIVITY LIGHT-TO

... Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V Output current, IO . . . . . . . . . . . . . . . ...
switching voltage regulator and variable current limiter
switching voltage regulator and variable current limiter

Part 4 - iaria
Part 4 - iaria

...  More tests (test points), but with fewer requirements on the specific details of each test  Allows the use of analytical results where testing would be difficult  Recommended way of exchanging information between the equipment manufacturers and endusers of the equipment ...
AN2951
AN2951

AP6503 Description Pin Assignments
AP6503 Description Pin Assignments

... clock signal sets the RS Flip-Flop. Its output turns on HS MOSFET. The current sense amplifier is reset for every switching cycle. 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 s ...
EE32828833
EE32828833

data sheet
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... warranty period is mandated by applicable local laws. If equipment fails due to such defects within this period, Phaedrus Audio will, at its option, repair or provide a replacement for the defective product. This warranty does not extend to any Phaedrus Audio product that has been damaged or rendere ...
Aalborg Universitet
Aalborg Universitet

reduction of switches and voltage divices in new cascaded h
reduction of switches and voltage divices in new cascaded h

Evaluation Board User Guide UG-186
Evaluation Board User Guide UG-186

... one of the GND pads on the evaluation board. Connect the positive terminal (+) of the main voltage source to the VIN and VIN3 pads of the evaluation board. Connect the positive terminal (+) of the bias voltage source to the VBIAS pad of the evaluation board. Set the bias voltage supply to a voltage ...
HIP4080A Datasheet
HIP4080A Datasheet

... SOIC and DIP packages. The HIP4080A includes an input comparator, used to facilitate the “hysteresis” and PWM modes of operation. Its HEN (high enable) lead can force current to freewheel in the bottom two external power MOSFETs, maintaining the upper power MOSFETs off. Since it can switch at freque ...
Modeling of microdischarge devices: Pyramidal
Modeling of microdischarge devices: Pyramidal

... voltage will remain constant provided that pd remains constant. Under these conditions, current density scales as p 2 . In principle, pd scaling should enable MD devices to be scaled to dimensions of only a few microns, the mean free path of electrons at near atmospheric pressure. 共Note that in mult ...
62 Answering AS questions on circuits.p65
62 Answering AS questions on circuits.p65

MP4459 – 1.5A, 4MHz, 36V STEP
MP4459 – 1.5A, 4MHz, 36V STEP

... non-synchronous, step-down switching regulator with an integrated high-side high voltage power MOSFET. It provides a single highly efficient solution with current mode control for fast loop response and easy compensation. It features a wide input voltage range, internal soft-start control and precis ...
RT8238A - Richtek Technology
RT8238A - Richtek Technology

... Mode) operation can be enabled by driving the tri-state MODE pin to a logic high level. The RT8238A can switch operation into DEM when the MODE pin is pulled up to 5V. If MODE is pulled to 2.5V, the controller will switch operation into ASM. Finally, if the pin is pulled to GND, the RT8238A will ope ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,

... stepped up. Typical low voltages range from 12 to 125 V must be increased to 300 or 440 V so that a high voltage dc bus is obtained. Inverters are commonly used device in today’s society. They are often used to take a low voltage DC source, such as the battery in a motor vehicle, and supply a high v ...
application note u-129 uc3907 load share ic
application note u-129 uc3907 load share ic

... Current mode supplies can accommodate several configurations to achieve a form of load sharing. One approach is to select a master module to perform the voltage control and force the remaining modules (slaves) to act as current sources, as shown in Fig. 2. This technique is facilitated with current ...
BD9763FVM
BD9763FVM

... Single-output Step-up,High-efficiency Switching Regulator (Controller Type) BD9763FVM ...
Power loss from hot tungsten filament
Power loss from hot tungsten filament

... lowest range of voltage and corresponding current measurements. See what the smallest voltage range on your DMM is and select appropriate current range in the other DMM to measure the current when the small voltage is applied across the filament. Take a good number of readings and plotting a graph, ...
III. Obsrvations and Discussions
III. Obsrvations and Discussions

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Triode



A triode is an electronic amplifying vacuum tube (or valve in British English) consisting of three electrodes inside an evacuated glass envelope: a heated filament or cathode, a grid, and a plate (anode). Invented in 1906 by Lee De Forest by adding a grid to the Fleming valve, the triode was the first electronic amplification device and the ancestor of other types of vacuum tubes such as the tetrode and pentode. Its invention founded the electronics age, making possible amplified radio technology and long-distance telephony. Triodes were widely used in consumer electronics devices such as radios and televisions until the 1970s, when transistors replaced them. Today, their main remaining use is in high-power RF amplifiers in radio transmitters and industrial RF heating devices. The word is derived from the Greek τρίοδος, tríodos, from tri- (three) and hodós (road, way), originally meaning the place where three roads meet.
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