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differential integrator pixel architecture for dark current
differential integrator pixel architecture for dark current

MAX509/MAX510 Quad, Serial 8-Bit DACs with Rail-to-Rail Outputs _______________General Description
MAX509/MAX510 Quad, Serial 8-Bit DACs with Rail-to-Rail Outputs _______________General Description

... The MAX509 has four separate reference inputs, allowing each DAC's full-scale range to be set independently. 20-pin DIP, SSOP, and SO packages are available. The MAX510 is identical to the MAX509 except it has two reference inputs, each shared by two DACs. The MAX510 is housed in space-saving 16-pin ...
General Description Features
General Description Features

... below its factory-trimmed or adjustable threshold and maintain reset for a minimum timeout period after all supplies rise above their thresholds. The integrated dual/triple supervisory circuits significantly improve system reliability and reduce size compared to separate ICs or discrete components. ...
UT64CAN333x CAN FD Transceivers
UT64CAN333x CAN FD Transceivers

... transceivers operate on a single +3.3 V power supply and receive data with an input common-mode in the range of -7 V to +12 V. The CANH and CANL outputs are fault protected against short-circuits by over-current shutdown circuitry. Each UT64CAN333x CAN transceiver is capable of: ...
Switched Mode Converters (1 Quadrant)
Switched Mode Converters (1 Quadrant)

... • A DC voltage source and a second DC voltage source (Buck-boost or step-up/down converter) ⇒The control of the energy transfer between two voltage sources is allowed by an internal inductance, used as energy buffer in the energy flow process ⇒Such a converter allows the supply of loads with an adju ...
AD9861-50
AD9861-50

... (ADC) and dual 10-bit digital-to-analog converters (TxDAC®). Two speed grades are available, -50 and -80. The -50 is optimized for ADC sampling of 50 MSPS and less, while the -80 is optimized for ADC sample rates between 50 MSPS and 80 MSPS. The dual TxDACs operate at speeds up to 200 MHz and includ ...
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... This document does not claim any originality and cannot be used as a substitute for prescribed textbooks. The information presented here is merely a collection by the committee members for their respective teaching assignments. Various sources as mentioned at the end of the document as well as freel ...
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Magnet Power Supply - Lake Shore Cryotronics, Inc.

... All products are thoroughly tested and calibrated to published specifications prior to shipment. Calibration Certifications are offered for six month periods only. Where such documentation must be updated, a re-certification service is offered by Lake Shore at a reasonable cost. LIMITATION OF WARRAN ...
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PRECISION TIG 375 - Lincoln Electric

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NTS0104 1. General description Dual supply translating transceiver; open drain; auto

... (An and Bn), one output enable input (OE) and two supply pins (VCC(A) and VCC(B)). VCC(A) can be supplied at any voltage between 1.65 V and 3.6 V and VCC(B) can be supplied at any voltage between 2.3 V and 5.5 V, making the device suitable for translating between any of the voltage nodes (1.8 V, 2.5 ...
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TWL92230C 数据资料 dataSheet 下载

effect of impulse voltage on solid insulation - ethesis
effect of impulse voltage on solid insulation - ethesis

... opportunity to the power engineers to protect the power equipment during their operating life for reliable operation. Therefore it becomes necessary for the todays electrical engineers to know various types of solid insulations and their properties in order to economize the cost applications and kee ...
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A Low-Power Wide-Dynamic-Range Analog VLSI Cochlea

... transistors; they ensure that the DC gain of the ampli®er is high such that there is no signi®cant lowfrequency attenuation in the cochlea (see Section 3.1 for further details). We use CP and CN transistors on both arms of the ampli®er to avoid any systematic offsets. The CP and CN transistors do no ...
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... This subcourse is designed to teach the knowledge necessary to describe the types and installation procedures of switches, receptacles, and incandescent and fluorescent lighting fixtures. This subcourse contains three lessons, each corresponding to a terminal learning objective as indicated below. T ...
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LVDS Owner’s Manual

... amplitude but opposite polarity at the receiver. Logic ones and zeros are generated in this manner. CML and LVPECL have a similar architecture but with different strength current sources and termination schemes. V+ ...
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Pro-Solo mkII Manual

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0.5μm InP DHBT Technology for 100GHz+ Mixed Signal Integrated

... After fabrication, the static and dynamic frequency dividers were measured at room temperature on a wafer probe station. A conventional 50GHz CW source was used for low frequency measurement. Testing beyond 50GHz in the V, W and D-bands was performed with combination of low frequency source and freq ...
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MAX3344E/MAX3345E ±15kV ESD-Protected USB Transceivers in UCSP with USB Detect General Description

... MAX3344E/MAX3345E provide built-in ±15kV ESD-protection circuitry on the USB I/O pins, D+ and D-, and VCC. The MAX3344E/MAX3345E operate with logic supply voltages as low as 1.65V, ensuring compatibility with low-voltage ASICs. The suspend mode lowers supply current to less than 40µA. An enumerate f ...
THESE DE DOCTORAT Monsieur Xusheng WANG
THESE DE DOCTORAT Monsieur Xusheng WANG

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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.
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