Carrier Mobility, Charge Trapping Effects on the Efficiency of Heavily
... First of all, I am heartily thankful to my main advisor Dr. Nigel Shepherd and co-advisor Dr. Mohammad Omary, whose supervision, guidance, support, and encouragement from the initial to the final step for accomplishing my dissertation. Also, I would like to thank my colleague Minghang for the great ...
... First of all, I am heartily thankful to my main advisor Dr. Nigel Shepherd and co-advisor Dr. Mohammad Omary, whose supervision, guidance, support, and encouragement from the initial to the final step for accomplishing my dissertation. Also, I would like to thank my colleague Minghang for the great ...
ADM9690 数据手册DataSheet 下载
... The watchdog timer circuit monitors the activity of the microprocessor in order to check that it is not stalled in an infinite loop. An output line on the processor may be used to toggle the Watchdog Input (WDI) line. If this line is not toggled within the selected timeout period, both RESET outputs ...
... The watchdog timer circuit monitors the activity of the microprocessor in order to check that it is not stalled in an infinite loop. An output line on the processor may be used to toggle the Watchdog Input (WDI) line. If this line is not toggled within the selected timeout period, both RESET outputs ...
Using the LTC1325 Battery Management IC
... When overcharged for extended periods of time, some NiCd batteries exhibit what is commonly called the “memory effect,” The voltage per cell drops 150mV which may lead the user to conclude that the battery is at the end of its discharge curve. This condition may be reversed by deeply discharging and ...
... When overcharged for extended periods of time, some NiCd batteries exhibit what is commonly called the “memory effect,” The voltage per cell drops 150mV which may lead the user to conclude that the battery is at the end of its discharge curve. This condition may be reversed by deeply discharging and ...
On-Chip Transient Detection Circuit for System
... such as LC-like (second-order) and π-section (third-order) filters. It has been proved that the system-level ESD immunity of CMOS ICs under system-level ESD test can be greatly improved by choosing proper components in noise filter networks [13]. The other method to improve the system-level ESD immu ...
... such as LC-like (second-order) and π-section (third-order) filters. It has been proved that the system-level ESD immunity of CMOS ICs under system-level ESD test can be greatly improved by choosing proper components in noise filter networks [13]. The other method to improve the system-level ESD immu ...
Temperature Measurement Using RTDs
... provide the greatest voltage sensitivity. The RTD signal is generally measured one of two ways: either by connecting the RTD element in one leg of a Wheatstone bridge excited by a constant reference voltage, or by running it in series with a precision current reference and measuring the correspondin ...
... provide the greatest voltage sensitivity. The RTD signal is generally measured one of two ways: either by connecting the RTD element in one leg of a Wheatstone bridge excited by a constant reference voltage, or by running it in series with a precision current reference and measuring the correspondin ...
NTBA104 1. General description Dual supply translating transceiver; auto direction sensing;
... Pins An and OE are referenced to VCC(A) and pins Bn are referenced to VCC(B). A HIGH level at pin OE causes the outputs to assume a high-impedance OFF-state. This device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing the damaging ...
... Pins An and OE are referenced to VCC(A) and pins Bn are referenced to VCC(B). A HIGH level at pin OE causes the outputs to assume a high-impedance OFF-state. This device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing the damaging ...
Application Note TLE8110EE
... Coil “A” and coil “B” are magnetic linked. In principle both pairs of coils present a transformer with the translation 1:1. The strongly decreasing magnetic field induces a voltage into coil “B” when current flow through coil “A” is stopped. Because of this induced voltage a reverse current flows th ...
... Coil “A” and coil “B” are magnetic linked. In principle both pairs of coils present a transformer with the translation 1:1. The strongly decreasing magnetic field induces a voltage into coil “B” when current flow through coil “A” is stopped. Because of this induced voltage a reverse current flows th ...
[Earl_Gates,_Leo_Chartrand
... Teachers can guide students to concentrate on the material related to a particular course syllabus, leaving the remaining subject matter as enrichment should students wish to extend their knowledge at a future date. Alternatively, instructors can choose to cover a series of selected topics, such as ...
... Teachers can guide students to concentrate on the material related to a particular course syllabus, leaving the remaining subject matter as enrichment should students wish to extend their knowledge at a future date. Alternatively, instructors can choose to cover a series of selected topics, such as ...
Noise Modeling and SiGe Profile Design Tradeoffs for RF Applications
... straint of SiGe film stability. Next, we simulated the noise parameters for various SiGe profiles at constant film stability (integrated Ge content) to determine the optimum profiles for low noise. To produce sensible results, the 2-D device structure for the standard control SiGe HBT was first cali ...
... straint of SiGe film stability. Next, we simulated the noise parameters for various SiGe profiles at constant film stability (integrated Ge content) to determine the optimum profiles for low noise. To produce sensible results, the 2-D device structure for the standard control SiGe HBT was first cali ...
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.