
Electrostatic Microgenerators
... A third mode of operation exists when the variable capacitor is continuously connected to the load circuitry, and this load circuitry provides the capacitor with a polarisation voltage. A simple example of this is a voltage source, a resistor and a variable capacitor wired in serie ...
... A third mode of operation exists when the variable capacitor is continuously connected to the load circuitry, and this load circuitry provides the capacitor with a polarisation voltage. A simple example of this is a voltage source, a resistor and a variable capacitor wired in serie ...
Abstract-Voltage stability is the ability of a power system to
... damping against the instability. Voltage collapse is the procedure by which the voltage falls to a low unacceptable value as a result of an avalanche of events accompanying voltage instability [1]. Once associated with weak systems and long lines, voltage troubles are now also a source of concern in ...
... damping against the instability. Voltage collapse is the procedure by which the voltage falls to a low unacceptable value as a result of an avalanche of events accompanying voltage instability [1]. Once associated with weak systems and long lines, voltage troubles are now also a source of concern in ...
TPS62065x 3-MHz 2A step down converter in a 2x2 SON package
... (PWM) at moderate to heavy load currents. At light load currents the converter can automatically enter power save mode and operates then in pulse frequency modulation (PFM) mode. During PWM operation the converter use a unique fast response voltage mode controller scheme with input voltage feed-forw ...
... (PWM) at moderate to heavy load currents. At light load currents the converter can automatically enter power save mode and operates then in pulse frequency modulation (PFM) mode. During PWM operation the converter use a unique fast response voltage mode controller scheme with input voltage feed-forw ...
PDF
... ISSN : 2248-9622, Vol. 5, Issue 4, ( Part -2) April 2015, pp.77-81 VS is equal to 1. Outside this range, the value decreases exponentially with the voltage deviation ...
... ISSN : 2248-9622, Vol. 5, Issue 4, ( Part -2) April 2015, pp.77-81 VS is equal to 1. Outside this range, the value decreases exponentially with the voltage deviation ...
DC-DC Power Converters
... A large number of dc-dc converter circuits are known that can increase or decrease the magnitude of the dc voltage and/or invert its polarity [1-5]. Figure 4 illustrates several commonly used dc-dc converter circuits, along with their respective conversion ratios. In each example, the switch is real ...
... A large number of dc-dc converter circuits are known that can increase or decrease the magnitude of the dc voltage and/or invert its polarity [1-5]. Figure 4 illustrates several commonly used dc-dc converter circuits, along with their respective conversion ratios. In each example, the switch is real ...
Document
... 19--9: Core Losses Hysteresis losses The hysteresis losses result from the additional power needed to reverse the magnetic field in magnetic materials in the presence of alternating current. The greater the frequency, the more hysteresis loss. Air-core coils Air has practically no losses from ...
... 19--9: Core Losses Hysteresis losses The hysteresis losses result from the additional power needed to reverse the magnetic field in magnetic materials in the presence of alternating current. The greater the frequency, the more hysteresis loss. Air-core coils Air has practically no losses from ...
Insert Title here (Style: Paper title)
... the supply-dependent on resistance of the switches. Differential-pair common-mode feedback circuit doesn’t need large area passive components, but it has limited linear signal range for the main amplifier and is not suitable at low supply [4]. In this paper a novel high speed low settling time error ...
... the supply-dependent on resistance of the switches. Differential-pair common-mode feedback circuit doesn’t need large area passive components, but it has limited linear signal range for the main amplifier and is not suitable at low supply [4]. In this paper a novel high speed low settling time error ...
Quad General-Purpose Operational Amplifiers
... applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask ...
... applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask ...
Si88x2x - Silicon Labs
... The Si88xx integrates Silicon Labs’ proven digital isolator technology with an on-chip isolated dc-dc converter that provides regulated output voltages of 3.3 or 5.0 V (or >5 V with external components) at peak output power levels of up to 5 W. These devices provide up to two digital channels. The d ...
... The Si88xx integrates Silicon Labs’ proven digital isolator technology with an on-chip isolated dc-dc converter that provides regulated output voltages of 3.3 or 5.0 V (or >5 V with external components) at peak output power levels of up to 5 W. These devices provide up to two digital channels. The d ...
QS5U26
... While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other ...
... While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other ...
SIRComm® MiniSIR2® 115.2kbps IrDA®1.0 Transceiver Module
... MiniSIR2 is a second generation, enhanced performance version of the original MiniSIR and is identical in size and form-factor. A shutdown feature has been added which lowers supply current from 120µA to 1nA in SD mode. Pin 4 controls this SD feature, whereas in the original MiniSIR, pin 4 is the co ...
... MiniSIR2 is a second generation, enhanced performance version of the original MiniSIR and is identical in size and form-factor. A shutdown feature has been added which lowers supply current from 120µA to 1nA in SD mode. Pin 4 controls this SD feature, whereas in the original MiniSIR, pin 4 is the co ...
Practical Valve Linear Amplifier Construction
... Bias pass transistor shorted because of inadequate heatsinking. Tube pulled 900mA from PSU for a while (Hummm…) and was well run-in afterwards! Fibreglass on the tuning flapper was fried by RF (at 100W only). Teflon block was added. ...
... Bias pass transistor shorted because of inadequate heatsinking. Tube pulled 900mA from PSU for a while (Hummm…) and was well run-in afterwards! Fibreglass on the tuning flapper was fried by RF (at 100W only). Teflon block was added. ...
mosfet_s-f.pdf
... minus supply needs to be at least -80v (about) and maybe a few more, so -100V would be good. -90 might work, depends on exactly how far you have to drive the output tubes to get them to cut off. Note that this analysis is for a marginal-Class-A amp. The deeper you run the amp into AB, and the closer ...
... minus supply needs to be at least -80v (about) and maybe a few more, so -100V would be good. -90 might work, depends on exactly how far you have to drive the output tubes to get them to cut off. Note that this analysis is for a marginal-Class-A amp. The deeper you run the amp into AB, and the closer ...
Demonstration System EPC9111/EPC9112 Quick Start Guide
... high efficiency with the EPC9506 / EPC9507 amplifier. This can be done by selecting the values for R74 and R75 respectively. This procedure is best performed using potentiometer P74 and P75 installed that is used to determine the fixed resistor values. The procedure is the same for both single ended ...
... high efficiency with the EPC9506 / EPC9507 amplifier. This can be done by selecting the values for R74 and R75 respectively. This procedure is best performed using potentiometer P74 and P75 installed that is used to determine the fixed resistor values. The procedure is the same for both single ended ...
FAN6756— mWSaver™ PWM Controller Features
... which forces the system to operate in a Deep Burst Mode with minimum switching losses. Protections ensure safe operation of the power system in various abnormal conditions. A proprietary frequencyhopping function decreases EMI emission and built-in synchronized slope compensation allows more stable ...
... which forces the system to operate in a Deep Burst Mode with minimum switching losses. Protections ensure safe operation of the power system in various abnormal conditions. A proprietary frequencyhopping function decreases EMI emission and built-in synchronized slope compensation allows more stable ...
ADS7816 数据资料 dataSheet 下载
... The ADS7816 is a 12-bit, 200kHz sampling analogto-digital converter. It features low power operation with automatic power down, a synchronous serial interface, and a differential input. The reference voltage can be varied from 100mV to 5V, with a corresponding resolution from 24µV to 1.22mV. Low pow ...
... The ADS7816 is a 12-bit, 200kHz sampling analogto-digital converter. It features low power operation with automatic power down, a synchronous serial interface, and a differential input. The reference voltage can be varied from 100mV to 5V, with a corresponding resolution from 24µV to 1.22mV. Low pow ...
5 Watt – Compact Folding Blade Adapter PSA05F Adapter Meets
... Note: (1) Measured after 30 minutes with by-pass capacitors 0.1uf/10uf at output connector terminal and oscilloscope set at 20 Mhz. (2) Special order item. Minimum order quantity required. Please consult Phihong USA. Interchangeable clips sold separately. Phihong reserves the right to make changes w ...
... Note: (1) Measured after 30 minutes with by-pass capacitors 0.1uf/10uf at output connector terminal and oscilloscope set at 20 Mhz. (2) Special order item. Minimum order quantity required. Please consult Phihong USA. Interchangeable clips sold separately. Phihong reserves the right to make changes w ...
Miniature In Cell Amplifier for Strain Gauges
... independent of the presence of a data signal. (See Noise) The ability of a signal conditioner to display both positive and negative readings. The resistance measured across the excitation terminals of a Strain Gauge. Adjustment of an instrument or compiling a deviation chart so that it’s reading can ...
... independent of the presence of a data signal. (See Noise) The ability of a signal conditioner to display both positive and negative readings. The resistance measured across the excitation terminals of a Strain Gauge. Adjustment of an instrument or compiling a deviation chart so that it’s reading can ...
Variable-frequency drive

A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.