AAT3244 数据资料DataSheet下载
... material types are not recommended for use with LDO regulators since the capacitor tolerance can vary more than ±50% over the operating temperature range of the device. A 2.2µF Y5V capacitor could be reduced to 1µF over temperature; this could cause problems for circuit operation. X7R and X5R dielec ...
... material types are not recommended for use with LDO regulators since the capacitor tolerance can vary more than ±50% over the operating temperature range of the device. A 2.2µF Y5V capacitor could be reduced to 1µF over temperature; this could cause problems for circuit operation. X7R and X5R dielec ...
Transformer Basics Information Guide
... Secondary: Overload protection is not always required, however, if the primary CB is sized more than 125%, then secondary protection is required, sized no more than 125% of the maximum secondary capacity. Secondary protection can take the form of several (no more than 6) CBs, as long as the total am ...
... Secondary: Overload protection is not always required, however, if the primary CB is sized more than 125%, then secondary protection is required, sized no more than 125% of the maximum secondary capacity. Secondary protection can take the form of several (no more than 6) CBs, as long as the total am ...
... prototypes was minimized in predicting the coil behavior. A coil design process was developed that begins with only dimensions, material properties, and topology. Then the non-linear magnetic and linear electrostatic interactions among the windings and laminations of the coil were modeled using elec ...
ADP5037 英文数据手册DataSheet 下载
... predefined threshold, the regulator operates in power save mode (PSM), improving the light-load efficiency. The two bucks operate out of phase to reduce the input capacitor requirement. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5037 LDOs extend the batter ...
... predefined threshold, the regulator operates in power save mode (PSM), improving the light-load efficiency. The two bucks operate out of phase to reduce the input capacitor requirement. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5037 LDOs extend the batter ...
A New Topology for Compensation of Voltage Sag/ Swell
... incurring heavy financial loss. power quality problems are mainly occur due to increased use of sensitive loads, use of communication networks, process industries and some manufacturing processes. Power quality problems such as Transients, sag, swell and some other distributions occur in distributio ...
... incurring heavy financial loss. power quality problems are mainly occur due to increased use of sensitive loads, use of communication networks, process industries and some manufacturing processes. Power quality problems such as Transients, sag, swell and some other distributions occur in distributio ...
1. Mechanical Joining Processes
... • The greater the amperage flowing through the resistance (air gap)--the greater the heat. • The electrode also has resistance. • Excessive amperage for the diameter of the electrode over heats the electrode. • Insufficient amperage for the diameter of electrode makes electrode hard to start. ...
... • The greater the amperage flowing through the resistance (air gap)--the greater the heat. • The electrode also has resistance. • Excessive amperage for the diameter of the electrode over heats the electrode. • Insufficient amperage for the diameter of electrode makes electrode hard to start. ...
master`s thesis design and implementation of leaky wave
... mobile device, which has small physical size and non-stationary location. Directional antenna has non-circular radiation pattern. Gain is focused in one or several directions. Directional antennas are used mainly in base stations and satellite communications. Size of a directional antenna is typical ...
... mobile device, which has small physical size and non-stationary location. Directional antenna has non-circular radiation pattern. Gain is focused in one or several directions. Directional antennas are used mainly in base stations and satellite communications. Size of a directional antenna is typical ...
Understanding Arrester Discharge Voltage
... These three discharge voltages are used to determine how well an arrester is protecting nearby equipment. Specifically they are Copyright ArresterWorks 2008 ...
... These three discharge voltages are used to determine how well an arrester is protecting nearby equipment. Specifically they are Copyright ArresterWorks 2008 ...
Dual-Channel Pulse-Width-Modulation (PWM
... voltage drops too low (to approximately 2.9 V) for proper operation. A hysteresis voltage of 200 mV eliminates false triggering on noise and chattering. short-circuit protection (SCP) The TL1454A SCP function prevents damage to the power switches when the converter output is shorted to ground. In no ...
... voltage drops too low (to approximately 2.9 V) for proper operation. A hysteresis voltage of 200 mV eliminates false triggering on noise and chattering. short-circuit protection (SCP) The TL1454A SCP function prevents damage to the power switches when the converter output is shorted to ground. In no ...
LTC6909 - 1 to 8 Output, Multiphase Silicon
... the V+A and SET pins and the current entering the SET pin (IMASTER). When the spread spectrum frequency modulation (SSFM) is disabled, IMASTER is strictly determined by the (V+A – VSET) voltage and the RSET resistor. When SSFM is enabled, IMASTER is modulated by a filtered pseudorandom noise (PRN) s ...
... the V+A and SET pins and the current entering the SET pin (IMASTER). When the spread spectrum frequency modulation (SSFM) is disabled, IMASTER is strictly determined by the (V+A – VSET) voltage and the RSET resistor. When SSFM is enabled, IMASTER is modulated by a filtered pseudorandom noise (PRN) s ...
MAX8655 Highly Integrated, 25A, Wide-Input, Internal MOSFET, Step-Down Regulator General Description
... The MAX8655 synchronous-PWM buck regulator operates from a 4.5V to 25V input and generates an output voltage adjustable from 0.7V to 5.5V at loads up to 25A. Integrated power MOSFETs provide a small footprint, ease of layout, and reduced EMI. Removing the board trace inductances ensures the highest ...
... The MAX8655 synchronous-PWM buck regulator operates from a 4.5V to 25V input and generates an output voltage adjustable from 0.7V to 5.5V at loads up to 25A. Integrated power MOSFETs provide a small footprint, ease of layout, and reduced EMI. Removing the board trace inductances ensures the highest ...
you need to know about capacitive sensors
... high enough to reject coupling to power waveforms and also high enough so that the overall sensor frequency response is adequate; about 50 kHz is usually acceptably high. The frequency should also be low enough for easy circuit design, CMOS switches work well at 100 kHz and below. Excitation wavesha ...
... high enough to reject coupling to power waveforms and also high enough so that the overall sensor frequency response is adequate; about 50 kHz is usually acceptably high. The frequency should also be low enough for easy circuit design, CMOS switches work well at 100 kHz and below. Excitation wavesha ...
AP65550 Description Pin Assignments
... Peak current determines the required saturation current rating, which influences the size of the inductor. Saturating the inductor decreases the converter efficiency while increasing the temperatures of the inductor and the internal MOSFETs. Hence choosing an inductor with appropriate saturation cur ...
... Peak current determines the required saturation current rating, which influences the size of the inductor. Saturating the inductor decreases the converter efficiency while increasing the temperatures of the inductor and the internal MOSFETs. Hence choosing an inductor with appropriate saturation cur ...
ZXLD1360Q Description Pin Assignments Features Typical
... which bypasses internal resistor R3 to provide a controlled amount of hysteresis. The hysteresis is set by R3 to be nominally 15% of V ADJ. When MN is off, the current in L1 continues to flow via D1 and the LED(s) back to V IN. The current decays at a rate determined by the LED(s) and diode forward ...
... which bypasses internal resistor R3 to provide a controlled amount of hysteresis. The hysteresis is set by R3 to be nominally 15% of V ADJ. When MN is off, the current in L1 continues to flow via D1 and the LED(s) back to V IN. The current decays at a rate determined by the LED(s) and diode forward ...
UCC2808A-1Q1 数据资料 dataSheet 下载
... The UCC2808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC2808A contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count. The UCC2808A dual outpu ...
... The UCC2808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC2808A contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count. The UCC2808A dual outpu ...
- Gyanlo.com
... • The circuit has a capacitor, a diode, and a resistor. • In addition, it may have a dc supply to introduce additional shift. • Time constant τ = RC is made much larger than T (time period) of the signal. • The capacitor does not discharge when diode is not ...
... • The circuit has a capacitor, a diode, and a resistor. • In addition, it may have a dc supply to introduce additional shift. • Time constant τ = RC is made much larger than T (time period) of the signal. • The capacitor does not discharge when diode is not ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""