Transmission lines () - Lyle School of Engineering
... • A more practical method to improve transmission line loss is to artificially increase L by installing “loading coils” described later. • More practical method to combat dispersion, for modems and other waveform sensitive devices, has been to use adaptive equalizers. Equalizers combine various inte ...
... • A more practical method to improve transmission line loss is to artificially increase L by installing “loading coils” described later. • More practical method to combat dispersion, for modems and other waveform sensitive devices, has been to use adaptive equalizers. Equalizers combine various inte ...
DS1232 MicroMonitor Chip
... A watchdog timer function forces RST and RST signals to the active state when the ST input is not stimulated for a predetermined time period. The time period is set by the TD input to be typically 150 ms with TD connected to ground, 600 ms with TD left unconnected, and 1.2 seconds with TD connected ...
... A watchdog timer function forces RST and RST signals to the active state when the ST input is not stimulated for a predetermined time period. The time period is set by the TD input to be typically 150 ms with TD connected to ground, 600 ms with TD left unconnected, and 1.2 seconds with TD connected ...
Power converters for wind turbines
... generator systems. All the proposed converters have some advantages and some disadvantages. Only diode rectifier based unidirectional converter and back to back bidirectional converter topologies are commonly used in the commercial wind turbine generator systems. 2.1 Diode rectifier based converter ...
... generator systems. All the proposed converters have some advantages and some disadvantages. Only diode rectifier based unidirectional converter and back to back bidirectional converter topologies are commonly used in the commercial wind turbine generator systems. 2.1 Diode rectifier based converter ...
PCA9551 1. General description 8-bit I
... The newer Fast-mode Plus PCA9634 8-bit LED controller offers an individual PWM dimming control for each channel for better color mixing capabilities with a global PWM for dimming or blinking all channels at the same time. There are 126 possible address combinations and the maximum output sink curren ...
... The newer Fast-mode Plus PCA9634 8-bit LED controller offers an individual PWM dimming control for each channel for better color mixing capabilities with a global PWM for dimming or blinking all channels at the same time. There are 126 possible address combinations and the maximum output sink curren ...
Analog Versus Digital: Extrapolating from Electronics
... use the more natural resources of power (energy per unit time) and area (the spatial resource in a two-dimensional substrate such as nerve membrane or in VLSI) as our degrees of freedom. Suppose that we are given two systems, A and B, that do a computation at the same bandwidth (in Hz), at the same ...
... use the more natural resources of power (energy per unit time) and area (the spatial resource in a two-dimensional substrate such as nerve membrane or in VLSI) as our degrees of freedom. Suppose that we are given two systems, A and B, that do a computation at the same bandwidth (in Hz), at the same ...
ADF4360-9 - Analog Devices
... Analog Power Supply. This ranges from 3.0 V to 3.6 V. Decoupling capacitors to the analog ground plane should be placed as close as possible to this pin. AVDD must have the same value as DVDD. Analog Ground. This is the ground return path of the prescaler and VCO. VCO Output. The output level is pro ...
... Analog Power Supply. This ranges from 3.0 V to 3.6 V. Decoupling capacitors to the analog ground plane should be placed as close as possible to this pin. AVDD must have the same value as DVDD. Analog Ground. This is the ground return path of the prescaler and VCO. VCO Output. The output level is pro ...
Electric Fields in Material Space The charges considered
... Given a circuit node connecting a system of N wires (assuming DC currents) enclosed by a spherical surface S, the integral form of the continuity equation gives ...
... Given a circuit node connecting a system of N wires (assuming DC currents) enclosed by a spherical surface S, the integral form of the continuity equation gives ...
Mixing Problems
... In practice a circuit will contain several components that oppose the flow of charge. As current passes through these components, work has to be done, and the loss of energy is described by the resulting voltage drop across each component. For the circuits that we will consider, the behavior of the c ...
... In practice a circuit will contain several components that oppose the flow of charge. As current passes through these components, work has to be done, and the loss of energy is described by the resulting voltage drop across each component. For the circuits that we will consider, the behavior of the c ...
Installation Considerations for Multi
... waveform (Vng) at the drive PWM output is the source of Ilg current. Fig. 6 shows Vng and Ilg waveforms for a single 480V drive (Vbus = 650 Vdc) operating at fc = 4 kHz and output 30 Hz frequency and connected to a single motor cable of 300 ft. Vng was measured between the neutral point of a wye con ...
... waveform (Vng) at the drive PWM output is the source of Ilg current. Fig. 6 shows Vng and Ilg waveforms for a single 480V drive (Vbus = 650 Vdc) operating at fc = 4 kHz and output 30 Hz frequency and connected to a single motor cable of 300 ft. Vng was measured between the neutral point of a wye con ...
Bidirectional VF Control of Single and 3
... time in between any OFF and ON switch events to avoid a DC bus short circuit. The PIC16F72 does not have these features in the hardware. However, this can be easily implemented using a general purpose timer and six output pins as shown in Figure 9. ...
... time in between any OFF and ON switch events to avoid a DC bus short circuit. The PIC16F72 does not have these features in the hardware. However, this can be easily implemented using a general purpose timer and six output pins as shown in Figure 9. ...
MAX2059 1700MHz to 2200MHz High-Linearity, SPI-Controlled DVGA with Integrated Loopback Mixer General Description
... ideal for a variety of applications, including single and multicarrier 1700MHz to 2200MHz DCS 1800/PCS 1900 EDGE, cdma2000®, WCDMA/UMTS, and TD-SCDMA base stations. The MAX2059 yields a high level of component integration, which includes two 5-bit digital attenuators, a two-stage driver amplifier, a ...
... ideal for a variety of applications, including single and multicarrier 1700MHz to 2200MHz DCS 1800/PCS 1900 EDGE, cdma2000®, WCDMA/UMTS, and TD-SCDMA base stations. The MAX2059 yields a high level of component integration, which includes two 5-bit digital attenuators, a two-stage driver amplifier, a ...
USER MANUAL PDF rev. 1.02
... components, power the board from 5V on Ni-MH pins and check VFER voltage inside pin#5 of 28 PIN DIP Socket. VREF should be between 2.49V-2.54V. If you read something else it means you need to modify R2 value or replace IC2. Check also 3.3V voltage on D9 zener after R5. And very important now to chec ...
... components, power the board from 5V on Ni-MH pins and check VFER voltage inside pin#5 of 28 PIN DIP Socket. VREF should be between 2.49V-2.54V. If you read something else it means you need to modify R2 value or replace IC2. Check also 3.3V voltage on D9 zener after R5. And very important now to chec ...
Photosensors - Lighting Research Center
... a daylighting system so lights operate only when daylighting is insufficient. A photosensor adjusts the light output of a lighting system based on the amount of light it senses. Photosensor technology has advanced dramatically since the original National Lighting Product Information Program (NLPIP) ...
... a daylighting system so lights operate only when daylighting is insufficient. A photosensor adjusts the light output of a lighting system based on the amount of light it senses. Photosensor technology has advanced dramatically since the original National Lighting Product Information Program (NLPIP) ...
Functions - staff.uni
... chains will be joined via a common connector. The CPLD will be flashed through its JTAG interface. The FPGA can be configured via JTAG as well, if required for firmware development. FPGAs are RAM-based programmable logic circuits that need to be configured after power-up. The default configuration m ...
... chains will be joined via a common connector. The CPLD will be flashed through its JTAG interface. The FPGA can be configured via JTAG as well, if required for firmware development. FPGAs are RAM-based programmable logic circuits that need to be configured after power-up. The default configuration m ...
MAX98356 PDM Input Class D Audio Power Amplifier General Description Features
... (PDM) input Class D power amplifier that provides Class AB audio performance with Class D efficiency. This IC offers five selectable gain settings (3dB, 6dB, 9dB, 12dB, and 15dB) set by a single gain-select input (GAIN). The MAX98356 takes a stereo pulse density modulated (SPDM) input signal directl ...
... (PDM) input Class D power amplifier that provides Class AB audio performance with Class D efficiency. This IC offers five selectable gain settings (3dB, 6dB, 9dB, 12dB, and 15dB) set by a single gain-select input (GAIN). The MAX98356 takes a stereo pulse density modulated (SPDM) input signal directl ...
balun basics primer
... Impedance Ratio/Turns Ratio: While the unbalanced impedance of a balun is matched to the input transmission line, the balanced impedance can be any value. The ratio of the unbalanced impedance to the balanced impedance is the impedance ratio, and is usually stated as 1:n (i.e. 1:1, 1:2, 1:4). Note ...
... Impedance Ratio/Turns Ratio: While the unbalanced impedance of a balun is matched to the input transmission line, the balanced impedance can be any value. The ratio of the unbalanced impedance to the balanced impedance is the impedance ratio, and is usually stated as 1:n (i.e. 1:1, 1:2, 1:4). Note ...
a new principle of digital fractional frequency synthesizer
... A new design technique of the frequency synthesizer has been presented in this paper. The presented digital frequency synthesizer was patented in the Czech Republic. Schemes for direct and indirect synthesizers were shown and basic equations and block diagram were also described. The digital freque ...
... A new design technique of the frequency synthesizer has been presented in this paper. The presented digital frequency synthesizer was patented in the Czech Republic. Schemes for direct and indirect synthesizers were shown and basic equations and block diagram were also described. The digital freque ...
... of increased size and larger power dissipating 30 capacitance. The plate dissipation in such tubes is proportional to the second power ofthe capaci capability. Such use also increases the amplifier tance so that for a -given frequency band, tubes circuit capacitance which in turn necessitates in hav ...
Steady Electric Current
... Calculation for E, J • Consider how the resistance are connected. – Serial connection (integration using R dR ) Constant current: J I a current S – Parallel connection (integration using G dG ) V Constant voltage: E a L ...
... Calculation for E, J • Consider how the resistance are connected. – Serial connection (integration using R dR ) Constant current: J I a current S – Parallel connection (integration using G dG ) V Constant voltage: E a L ...
Opto-isolator
In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.