the tetrode boards - Bruce`s home page
... • Loading too light, or too heavy • Too much RF drive • Loss or major change in anode, screen or control grid voltage • RF and DC arcs, flashovers and other ‘glitches’ • Blower failure, resulting in overheating of the tube(s). All of these faults will result in too much screen current, either positi ...
... • Loading too light, or too heavy • Too much RF drive • Loss or major change in anode, screen or control grid voltage • RF and DC arcs, flashovers and other ‘glitches’ • Blower failure, resulting in overheating of the tube(s). All of these faults will result in too much screen current, either positi ...
BD3507HFV
... rapidly changed. About 22µF ceramic capacitors are recommended but output capacitor greatly depends on temperature and load conditions. In addition, when various capacitors are connected in series, the total phase allowance of loop gain becomes not sufficient, and oscillation may result. Thoroughgoi ...
... rapidly changed. About 22µF ceramic capacitors are recommended but output capacitor greatly depends on temperature and load conditions. In addition, when various capacitors are connected in series, the total phase allowance of loop gain becomes not sufficient, and oscillation may result. Thoroughgoi ...
Multi-Output Power Supplies with VCOM Amplifier MAX17126/MAX17126A General Description
... Multi-Output Power Supplies with VCOM Amplifier and High-Voltage Gamma Reference for LCD TVs The MAX17126/MAX17126A generate all the supply rails for thin-film transistor liquid-crystal display (TFT LCD) TV panels operating from a regulated 12V input. They include a step-down and a step-up regulator ...
... Multi-Output Power Supplies with VCOM Amplifier and High-Voltage Gamma Reference for LCD TVs The MAX17126/MAX17126A generate all the supply rails for thin-film transistor liquid-crystal display (TFT LCD) TV panels operating from a regulated 12V input. They include a step-down and a step-up regulator ...
Coulometric Methods of Analysis
... Experimental problems with constant current coulometry • Using a constant current does present two important experimental problems that must be solved if accurate results are to be obtained. • First, as electrolysis occurs the analyte's concentration and, therefore, the current due to its oxidation ...
... Experimental problems with constant current coulometry • Using a constant current does present two important experimental problems that must be solved if accurate results are to be obtained. • First, as electrolysis occurs the analyte's concentration and, therefore, the current due to its oxidation ...
MN225008EN/ Old S225-10-30
... In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or other-wise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to damage or loss of use of equipment, plant or power ...
... In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or other-wise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to damage or loss of use of equipment, plant or power ...
Solid-state NMR training course - New York Structural Biology Center
... Power goes from transmitter to probe via a bi-directional coupler. The coupler splits off 10% of voltage (1% of power) passing through it. This voltage can be measured via oscilloscope. The ratio of reflected to forward voltage is the most precise indicator of ...
... Power goes from transmitter to probe via a bi-directional coupler. The coupler splits off 10% of voltage (1% of power) passing through it. This voltage can be measured via oscilloscope. The ratio of reflected to forward voltage is the most precise indicator of ...
Energy Management System
... with the use of a remote. The Belkin WeMo units are similar in structure to the Kill-A-Watt meter, with a different feature set. The base WeMo modules ($40 and above) are adapters that plug into a wall outlet, and consume more space than a single wall outlet. These modules provide per outlet usage d ...
... with the use of a remote. The Belkin WeMo units are similar in structure to the Kill-A-Watt meter, with a different feature set. The base WeMo modules ($40 and above) are adapters that plug into a wall outlet, and consume more space than a single wall outlet. These modules provide per outlet usage d ...
Lightning Protection.. - Crawford Broadcasting
... per .020 inches. As altitude increases, the breakdown voltage decreases. A good rule of thumb is to reduce the breakdown voltage by 20% for every 5,000 feet AMSL. The peak modulated RF voltage across the base of an AM tower can be calculated by the following formula: ...
... per .020 inches. As altitude increases, the breakdown voltage decreases. A good rule of thumb is to reduce the breakdown voltage by 20% for every 5,000 feet AMSL. The peak modulated RF voltage across the base of an AM tower can be calculated by the following formula: ...
AAT4672 数据资料DataSheet下载
... a safe minimum value to use. For example, for a 2.5V input power supply application that is specified to operate in 50°C environments where the PCB operates at temperatures as high as 85°C. The application is sealed and its PCB is small, causing RθJA to be approximately 160°C/W. The RDS(ON)(MAX) is ...
... a safe minimum value to use. For example, for a 2.5V input power supply application that is specified to operate in 50°C environments where the PCB operates at temperatures as high as 85°C. The application is sealed and its PCB is small, causing RθJA to be approximately 160°C/W. The RDS(ON)(MAX) is ...
Meeting Minutes - Northwest Power and Conservation Council
... cost effectiveness of an automated CVR system but have not yet implemented one. This section could point the reader to appropriate resources for estimating the savings that would cost justify the implementation of an automated CVR system (I.e. those in category (b), who cannot use this protocol to j ...
... cost effectiveness of an automated CVR system but have not yet implemented one. This section could point the reader to appropriate resources for estimating the savings that would cost justify the implementation of an automated CVR system (I.e. those in category (b), who cannot use this protocol to j ...
• Set-Top-Box Conditional Access and Pay-per-View
... application where a 5 V (typically -5% +10%) power supply is available. Hardware support for auxiliary I/O lines, C4 / C8 contacts is provided. Emergency card deactivation is initiated upon card extraction or upon any fault generated by the protection circuitry. The fault can be a card over-current, ...
... application where a 5 V (typically -5% +10%) power supply is available. Hardware support for auxiliary I/O lines, C4 / C8 contacts is provided. Emergency card deactivation is initiated upon card extraction or upon any fault generated by the protection circuitry. The fault can be a card over-current, ...
Class A power amplifier
... • It should be realized that the use of heat sink alone may not be sufficient to prevent thermal runaway under all conditions. In designing a transistor circuit, consideration should also be given to the choice of (i) operating point (ii) ambient temperatures which are likely to be encountered and ( ...
... • It should be realized that the use of heat sink alone may not be sufficient to prevent thermal runaway under all conditions. In designing a transistor circuit, consideration should also be given to the choice of (i) operating point (ii) ambient temperatures which are likely to be encountered and ( ...
GTL2003 1. General description 8-bit bidirectional low voltage translator
... by the pull-up resistors. This functionality allows a seamless translation between higher and lower voltages selected by the user, without the need for directional control. All transistors have the same electrical characteristics and there is minimal deviation from one output to another in voltage o ...
... by the pull-up resistors. This functionality allows a seamless translation between higher and lower voltages selected by the user, without the need for directional control. All transistors have the same electrical characteristics and there is minimal deviation from one output to another in voltage o ...
Department of Communication Engineering Common to all Divisions
... series and series parallel magnetic circuits. Faraday' law of electromagnetic induction, Lenz's law, self inductance, types of inductors, induced voltage, energy stored in an inductor. Sinusoidal Alternating Quantities ...
... series and series parallel magnetic circuits. Faraday' law of electromagnetic induction, Lenz's law, self inductance, types of inductors, induced voltage, energy stored in an inductor. Sinusoidal Alternating Quantities ...
inductors - Murata Power Solutions
... ■ Reduce high frequency (particularly radio frequency) loops in supply lines. ■ De-couple supply lines at local boundaries (use RCL filters with Q ≤2). ■ Use low pass filters on signal lines to reduce band width to signal minimum. ■ Keep return and feed loops close on wide band width signal lines. ■ ...
... ■ Reduce high frequency (particularly radio frequency) loops in supply lines. ■ De-couple supply lines at local boundaries (use RCL filters with Q ≤2). ■ Use low pass filters on signal lines to reduce band width to signal minimum. ■ Keep return and feed loops close on wide band width signal lines. ■ ...
Current Shunt Resistors integrated in IGBT Power
... As shown in Figure 2, the 150A IGBT module contains two shunt resistors per leg. These two shunt resistors are connected in parallel. This is needed to distribute the heat when sensing high currents. To avoid significantly higher currents in the sense lines than expected, ballast resistors must be u ...
... As shown in Figure 2, the 150A IGBT module contains two shunt resistors per leg. These two shunt resistors are connected in parallel. This is needed to distribute the heat when sensing high currents. To avoid significantly higher currents in the sense lines than expected, ballast resistors must be u ...
AAT4687 数据资料DataSheet下载
... when powering low-voltage systems such as cell phones, MP3, and PDAs or when charging Lithium-Ion batteries from a poorly regulated supply. The AAT4687 is inserted between the power supply or charger source and the load to be protected. The AAT4687 IC includes a low resistance P-channel MOSFET, unde ...
... when powering low-voltage systems such as cell phones, MP3, and PDAs or when charging Lithium-Ion batteries from a poorly regulated supply. The AAT4687 is inserted between the power supply or charger source and the load to be protected. The AAT4687 IC includes a low resistance P-channel MOSFET, unde ...
AP7173 1.5A LOW DROPOUT LINEAR REGULATOR WITH PROGRAMMABLE SOFT-START
... Soft-Start pin. Connect a capacitor between this pin and the ground to set the soft-start ramp time of the output voltage. If no capacitor is connected, the soft-start time is typically 100µS. Feedback pin. Connect this pin to an external voltage divider to set the ...
... Soft-Start pin. Connect a capacitor between this pin and the ground to set the soft-start ramp time of the output voltage. If no capacitor is connected, the soft-start time is typically 100µS. Feedback pin. Connect this pin to an external voltage divider to set the ...
Magnetix DC-DC Converters
... The Magnetix range of pcb mount dc to dc converters offers a comprehensive range of industry recognised packages and footprints with power ratings from 0.25W to 15W. Essential elements in distributed power systems, dc to dc converters help eliminate the resistive power loss associated with centralis ...
... The Magnetix range of pcb mount dc to dc converters offers a comprehensive range of industry recognised packages and footprints with power ratings from 0.25W to 15W. Essential elements in distributed power systems, dc to dc converters help eliminate the resistive power loss associated with centralis ...
Contax Contactors Function Operation Features and benefits
... - a 20A contactor will operate for 7.5 years ...
... - a 20A contactor will operate for 7.5 years ...
Stray voltage
Stray voltage is the occurrence of electrical potential between two objects that ideally should not have any voltage difference between them. Small voltages often exist between two grounded objects in separate locations, due to normal current flow in the power system. Large voltages can appear on the enclosures of electrical equipment due to a fault in the electrical power system, such as a failure of insulation.