Equipment Protection
... 40 or 50A branch circuits (210.23). Household appliances with surface heating elements that have a maximum rating greater than 60A must be divided into two or more circuits, each of which is protected by a fuse of no greater than 50A [422.11(B)]. Portable appliances are considered as protected when ...
... 40 or 50A branch circuits (210.23). Household appliances with surface heating elements that have a maximum rating greater than 60A must be divided into two or more circuits, each of which is protected by a fuse of no greater than 50A [422.11(B)]. Portable appliances are considered as protected when ...
The Transistor Amplifier
... A transistor can be used as a "detector" in a radio circuit. The Detector stage in a radio (such as an AM receiver), is usually a crystal, but can be the base-emitter junction of a transistor. It detects the slowly rising and falling audio component of an RF signal. This signal is further amplified ...
... A transistor can be used as a "detector" in a radio circuit. The Detector stage in a radio (such as an AM receiver), is usually a crystal, but can be the base-emitter junction of a transistor. It detects the slowly rising and falling audio component of an RF signal. This signal is further amplified ...
Range and General Features ClassA HEADENDS
... • Microprocessor controlled. User friendly software (selectable language: english, spanish, french). Built-in diagnostic and error identification. Module firmware update. Firmware of the SPI-300 can also be updated through a PC. • Capacity of 500 preset memory allocations for repetitive ClassA module ...
... • Microprocessor controlled. User friendly software (selectable language: english, spanish, french). Built-in diagnostic and error identification. Module firmware update. Firmware of the SPI-300 can also be updated through a PC. • Capacity of 500 preset memory allocations for repetitive ClassA module ...
Institutionen för systemteknik technology Department of Electrical Engineering
... Complementary circuits are becoming more popular in implementing a special class of digital integrated circuits [3], especially for forming Exclusive OR (XOR) and Multiplexer (MUX) operations [10]. These adders have several advantages over static CMOS logic in power consumption and delay. CPL full a ...
... Complementary circuits are becoming more popular in implementing a special class of digital integrated circuits [3], especially for forming Exclusive OR (XOR) and Multiplexer (MUX) operations [10]. These adders have several advantages over static CMOS logic in power consumption and delay. CPL full a ...
AppNote: Configuring the PAC52XX CAFE for Different Control
... Each differential amplifier in the PAC52XX has two protection comparators that can be used to trigger protection events. The state of these comparators is also accessible by the MCU by status registers. The High-speed Protection (HP) comparators compare the positive input of the differential signal ...
... Each differential amplifier in the PAC52XX has two protection comparators that can be used to trigger protection events. The state of these comparators is also accessible by the MCU by status registers. The High-speed Protection (HP) comparators compare the positive input of the differential signal ...
Basics
... . L1 is a self inductance (electrical component generating a magnetic field when a current is flowing through it). . Q1 is a CPE (Constant Phase Element). It is a mathematical component used instead of C when the experimental impedance graph is not semi-circle but a depressed semi circle. It means t ...
... . L1 is a self inductance (electrical component generating a magnetic field when a current is flowing through it). . Q1 is a CPE (Constant Phase Element). It is a mathematical component used instead of C when the experimental impedance graph is not semi-circle but a depressed semi circle. It means t ...
INVERTER HF-320 Series
... When a standard motor is combined with an inverter to perform variable speed operation, the motor temperature rises slightly higher than it normally does during commercial power supply operation. This is because the inverter output voltage has a sinusoidal (approximate) PWM waveform. In addition, th ...
... When a standard motor is combined with an inverter to perform variable speed operation, the motor temperature rises slightly higher than it normally does during commercial power supply operation. This is because the inverter output voltage has a sinusoidal (approximate) PWM waveform. In addition, th ...
Servomotors and Amplifiers
... 2. The regenerative braking frequency shows the permissible frequency when the motor, without a load and the optional regeneration unit, decelerates from the rated speed to a stop. When a load is connected; however, the value will be the table value/(m+1), where m=the load inertia moment/the motor i ...
... 2. The regenerative braking frequency shows the permissible frequency when the motor, without a load and the optional regeneration unit, decelerates from the rated speed to a stop. When a load is connected; however, the value will be the table value/(m+1), where m=the load inertia moment/the motor i ...
G. H. RAISONI COLLEGE OF ENGINEERING, NAGPUR Department
... Theory: Digital circuits are different from analog circuits. Almost all digital circuits are designed for two state operations. This means using only two non-adjacent points on the load line, typically saturation and cutoff. As a result the output voltage has only two states, either low or high. Thu ...
... Theory: Digital circuits are different from analog circuits. Almost all digital circuits are designed for two state operations. This means using only two non-adjacent points on the load line, typically saturation and cutoff. As a result the output voltage has only two states, either low or high. Thu ...
Ultra low noise amplifiers
... relatively high – usually more then 1 kHz (bipolar transistors have 1/f noise corner some Hz or tens Hz) and voltage noise density is relatively high – usually some nV/√Hz or more. Noise of the unipolar transistor can be modeled as a noise of the resistor with value 1/Yfs, so transistors with high t ...
... relatively high – usually more then 1 kHz (bipolar transistors have 1/f noise corner some Hz or tens Hz) and voltage noise density is relatively high – usually some nV/√Hz or more. Noise of the unipolar transistor can be modeled as a noise of the resistor with value 1/Yfs, so transistors with high t ...
Noise Specs Confusing?
... need not be specified (note that esig drops out of Equation 4). Because NF is so easy to handle in calculations, many designers tend to lose sight of the fact that signal-to-noise ratio (S/N)out is what is important in the final analysis, be it an audio, video, or digital data system. One can, in fa ...
... need not be specified (note that esig drops out of Equation 4). Because NF is so easy to handle in calculations, many designers tend to lose sight of the fact that signal-to-noise ratio (S/N)out is what is important in the final analysis, be it an audio, video, or digital data system. One can, in fa ...
AD9240 数据手册DataSheet 下载
... levels in successive channels as well as sampling single-channel inputs at frequencies up to and beyond the Nyquist rate. The AD9240 also performs well in communication systems employing Direct-IF Down Conversion, since the SHA in the differential input mode can achieve excellent dynamic performance ...
... levels in successive channels as well as sampling single-channel inputs at frequencies up to and beyond the Nyquist rate. The AD9240 also performs well in communication systems employing Direct-IF Down Conversion, since the SHA in the differential input mode can achieve excellent dynamic performance ...
noise measurements of resistors with the use of dual
... The bridge was supplied with a sinusoidal signal of frequency around 1 kHz. An additional The bridge was supplied with a sinusoidal signal of frequency around 1 kHz. An additional digital lock-in amplifier (model 7265 from Signal Recovery), whose X (in-phase), and Y digital lock-in amplifier (model ...
... The bridge was supplied with a sinusoidal signal of frequency around 1 kHz. An additional The bridge was supplied with a sinusoidal signal of frequency around 1 kHz. An additional digital lock-in amplifier (model 7265 from Signal Recovery), whose X (in-phase), and Y digital lock-in amplifier (model ...
High Performance CMOS Transmitters for
... transmitters typically use a number of discrete components and several integrated circuits because they employ multiple device technologies. This thesis describes advancements at both the circuit and architectural levels which allow the construction of a single-chip CMOS transmitter while enabling h ...
... transmitters typically use a number of discrete components and several integrated circuits because they employ multiple device technologies. This thesis describes advancements at both the circuit and architectural levels which allow the construction of a single-chip CMOS transmitter while enabling h ...
RF Diode Design Guide
... input signal level for the I/Q demodulator. The outputs of the I/Q demodulator are low pass filtered and then available to be digitized in a pair of analog-to-digital converters to produce the digital baseband output signals. Both the transmitter and the receiver signal chains employ local oscillato ...
... input signal level for the I/Q demodulator. The outputs of the I/Q demodulator are low pass filtered and then available to be digitized in a pair of analog-to-digital converters to produce the digital baseband output signals. Both the transmitter and the receiver signal chains employ local oscillato ...
care and feeding of power grid tubes - F1FRV
... provide very small spacing between the elements, and to achieve very short lead lengths within the tube. The very close spacings are necessary to reduce electron transit time1 and therefore allow the tube to be used at frequencies up to 3 GHz and higher. The short leads also increase the operating f ...
... provide very small spacing between the elements, and to achieve very short lead lengths within the tube. The very close spacings are necessary to reduce electron transit time1 and therefore allow the tube to be used at frequencies up to 3 GHz and higher. The short leads also increase the operating f ...
Regenerative circuit
The regenerative circuit (or regen) allows an electronic signal to be amplified many times by the same active device. It consists of an amplifying vacuum tube or transistor with its output connected to its input through a feedback loop, providing positive feedback. This circuit was widely used in radio receivers, called regenerative receivers, between 1915 and World War II. The regenerative receiver was invented in 1912 and patented in 1914 by American electrical engineer Edwin Armstrong when he was an undergraduate at Columbia University. Due partly to its tendency to radiate interference, by the 1930s the regenerative receiver was superseded by other receiver designs, the TRF and superheterodyne receivers and became obsolete, but regeneration (now called positive feedback) is widely used in other areas of electronics, such as in oscillators and active filters. A receiver circuit that used regeneration in a more complicated way to achieve even higher amplification, the superregenerative receiver, was invented by Armstrong in 1922. It was never widely used in general receivers, but due to its small parts count is used in a few specialized low data rate applications, such as garage door openers, wireless networking devices, walkie-talkies and toys.