Semicunductor by saradindu ghose for plus 2 physics
... transistor is that very high input impedance, Zin, can be obtained. A big disadvantage, however, is that the voltage gain, AV, obtainable with a JFET is much smaller. JFET amplifier configurations are as follows: Common-source (CS) Common-gate (CG) Common-drain (CD) ...
... transistor is that very high input impedance, Zin, can be obtained. A big disadvantage, however, is that the voltage gain, AV, obtainable with a JFET is much smaller. JFET amplifier configurations are as follows: Common-source (CS) Common-gate (CG) Common-drain (CD) ...
Transistor TIP120 - Mechanical Engineering
... Like the single transistors, there are physical limits for the Darlington pair. The collector characteristic has three important regions: the cutoff region, the active linear region, the saturation region. The cutoff region is the region in which the collector and base currents are oppose each other ...
... Like the single transistors, there are physical limits for the Darlington pair. The collector characteristic has three important regions: the cutoff region, the active linear region, the saturation region. The cutoff region is the region in which the collector and base currents are oppose each other ...
MAX987/MAX988/MAX991/MAX992/MAX995/MAX996 High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators ________________General Description
... Many comparators consume orders of magnitude more current during switching than during steady-state operation. However, with this family of comparators, the supply-current change during an output transition is extremely small. The Typical Operating Characteristics Supply Current vs. Output Transitio ...
... Many comparators consume orders of magnitude more current during switching than during steady-state operation. However, with this family of comparators, the supply-current change during an output transition is extremely small. The Typical Operating Characteristics Supply Current vs. Output Transitio ...
AAT4621 数据资料DataSheet下载
... maintains the device in current limit and the chip temperature reaches a critical point, then an internal power loop will reduce the current to a safe level. Connecting ISETU to ground disables the current limit protection allowing a low impedance path to the host VCC. The load switch is turned off ...
... maintains the device in current limit and the chip temperature reaches a critical point, then an internal power loop will reduce the current to a safe level. Connecting ISETU to ground disables the current limit protection allowing a low impedance path to the host VCC. The load switch is turned off ...
An Auxillary Zero State Synthesizer to Reduce Common Mode
... been found to have affected areas much beyond the scope of telecommunications technology. In the first half of this century, electromagnetic disturbance sources were limited to motor-driven machinery and switching apparatus. But with the proliferation of power semiconductor technology and rapid spre ...
... been found to have affected areas much beyond the scope of telecommunications technology. In the first half of this century, electromagnetic disturbance sources were limited to motor-driven machinery and switching apparatus. But with the proliferation of power semiconductor technology and rapid spre ...
MAX4631/MAX4632/MAX4633 Fault-Protected, High-Voltage, Dual Analog Switches General Description
... (Voltages referenced to GND) V+ ...........................................................................-0.3V to +44V V- ............................................................................-44V to +0.3V V+ to V-...................................................................-0.3V to +4 ...
... (Voltages referenced to GND) V+ ...........................................................................-0.3V to +44V V- ............................................................................-44V to +0.3V V+ to V-...................................................................-0.3V to +4 ...
An Introduction to Kinetic Inductance Detectors
... Generally in mm and submm astronomical applications we measure the difference in power incident on a detector. It is useful therefore to look at the excess quasi-particle population within a super conducting volume. For small amounts of optical power τqp(T) is constant so we can approximate the exce ...
... Generally in mm and submm astronomical applications we measure the difference in power incident on a detector. It is useful therefore to look at the excess quasi-particle population within a super conducting volume. For small amounts of optical power τqp(T) is constant so we can approximate the exce ...
Document
... Refering to Figure 2(b) again, the magnitude of Vset-Vcond is less than Vclose, and is not enough to switch the state of Q irrespective of its previous state. This means that if Q’s state was ‘0’, it will remain ‘0’. If the state was ‘1’, it will remain ‘1’. ...
... Refering to Figure 2(b) again, the magnitude of Vset-Vcond is less than Vclose, and is not enough to switch the state of Q irrespective of its previous state. This means that if Q’s state was ‘0’, it will remain ‘0’. If the state was ‘1’, it will remain ‘1’. ...
Robust Digital Control for Interleaved PFC Boost Converter Using Approximate 2DOF
... In recent years, improving of power factor and reducing harmonic distortion in electrical instruments are needed. In general, a current conduction mode boost converter is used for active PFC (Power Factor Correction). In a PFC boost converter, if a duty ratio, a load resistance and an input voltage ...
... In recent years, improving of power factor and reducing harmonic distortion in electrical instruments are needed. In general, a current conduction mode boost converter is used for active PFC (Power Factor Correction). In a PFC boost converter, if a duty ratio, a load resistance and an input voltage ...
AN2512
... a very low drop voltage regulator, L4931ABD33, in SO-8 package. The voltage regulator delivers up to 100 mA, ensuring good reliability with no heat sink. The feedback network ensures the required insulation between the primary and secondary sections. The optotransistor directly drives the VIPer12A f ...
... a very low drop voltage regulator, L4931ABD33, in SO-8 package. The voltage regulator delivers up to 100 mA, ensuring good reliability with no heat sink. The feedback network ensures the required insulation between the primary and secondary sections. The optotransistor directly drives the VIPer12A f ...
UNIT I AMPLITUDE MODULATION Objective:
... The transmission of information-bearing signal over a band pass communication channel, such as telephone line or a satellite channel usually requires a shift of the range of frequencies contained in the signal to another frequency range suitable for transmission. A shift in the signal frequency rang ...
... The transmission of information-bearing signal over a band pass communication channel, such as telephone line or a satellite channel usually requires a shift of the range of frequencies contained in the signal to another frequency range suitable for transmission. A shift in the signal frequency rang ...
Zahn, M., Transient Drift Dominated Unipolar Conduction Between Concentric Cylinders and Spheres, IEEE Transactions on Electrical Insulation, EI-11, 150-157, 1976
... special importance when, for example, sufficiently high voltages are applied to insulators and electrical breakdown occurs. However, the breakdown begins after the voltage crest. This time delay to breakdown coupled to time-of-flight measurements of charge-carrier mobilities [4] , obtained from peak ...
... special importance when, for example, sufficiently high voltages are applied to insulators and electrical breakdown occurs. However, the breakdown begins after the voltage crest. This time delay to breakdown coupled to time-of-flight measurements of charge-carrier mobilities [4] , obtained from peak ...
Ku-Band VSAT Block Up Converters
... uplink terminals. Output power levels include 4, 8 and 10W. ...
... uplink terminals. Output power levels include 4, 8 and 10W. ...
A Fast Electrical Energy Measurement Device and Power
... Fourier transform is difficult to draw the correct amplitude[4]. Wavelet analysis method has a great advantage of metering the time-varying signal or non-stationary signals power, and have an ability of characterizing local information in the time domain and frequency domain [5]. As the dynamic rang ...
... Fourier transform is difficult to draw the correct amplitude[4]. Wavelet analysis method has a great advantage of metering the time-varying signal or non-stationary signals power, and have an ability of characterizing local information in the time domain and frequency domain [5]. As the dynamic rang ...
This Australian synthesiser was designed by Trevor Marshall and
... synthesiser with MIDI. You can use this little board if your synth works with V/oct or Hz/V control. It takes about 2 seconds (or 4 keystrokes) to switch between V/oc and Hz/V ratios. It's calibrated at 1V/oct, but any ratio is possible, from 0 to over 2V/oct. Hz/V are available in 5 flavours, cover ...
... synthesiser with MIDI. You can use this little board if your synth works with V/oct or Hz/V control. It takes about 2 seconds (or 4 keystrokes) to switch between V/oc and Hz/V ratios. It's calibrated at 1V/oct, but any ratio is possible, from 0 to over 2V/oct. Hz/V are available in 5 flavours, cover ...
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.