LT3748 - 100V Isolated Flyback Controller
... dynamic response, nonlinearity, unit-to-unit variation and aging over life. Circuits employing extra transformer windings also exhibit deficiencies. Using an extra winding adds to the transformer’s physical size and cost, and dynamic response is often mediocre. The LT3748 derives its information abo ...
... dynamic response, nonlinearity, unit-to-unit variation and aging over life. Circuits employing extra transformer windings also exhibit deficiencies. Using an extra winding adds to the transformer’s physical size and cost, and dynamic response is often mediocre. The LT3748 derives its information abo ...
capacitance type 1.mdi
... What is the angular frequency of the oscillating system around the equilibrium value d1. (take amplitude of oscillation << d1) ...
... What is the angular frequency of the oscillating system around the equilibrium value d1. (take amplitude of oscillation << d1) ...
LTM8020 - 200mA, 36V DC/DC uModule
... is diode ORed with the LTM8020’s output. If the VIN pin is allowed to float and the SHDN pin is held high (either by a logic signal or because it is tied to VIN), then the LTM8020’s internal circuitry will pull its quiescent current from its output. This is fine if your system can tolerate a few mil ...
... is diode ORed with the LTM8020’s output. If the VIN pin is allowed to float and the SHDN pin is held high (either by a logic signal or because it is tied to VIN), then the LTM8020’s internal circuitry will pull its quiescent current from its output. This is fine if your system can tolerate a few mil ...
LM3448 Phase Dimmable Offline LED Driver with
... Figure 16. Line Voltage and Dimming Waveforms Voltage waveforms for a simple TRIAC dimmer are shown in Figure 16. Figure 16(a) shows the full sinusoid of the input voltage. Even when set to full brightness, few dimmers will provide 100% on-time (i.e. the full sinusoid). Figure 16(b) shows a theoreti ...
... Figure 16. Line Voltage and Dimming Waveforms Voltage waveforms for a simple TRIAC dimmer are shown in Figure 16. Figure 16(a) shows the full sinusoid of the input voltage. Even when set to full brightness, few dimmers will provide 100% on-time (i.e. the full sinusoid). Figure 16(b) shows a theoreti ...
LMR23630 - Texas Instruments
... for various applications from industrial to automotive for power conditioning from unregulated sources. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. A quiescent current of 75 μA makes it suitable for battery powered systems. A ...
... for various applications from industrial to automotive for power conditioning from unregulated sources. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. A quiescent current of 75 μA makes it suitable for battery powered systems. A ...
BDTIC CoolSET -F3R80 I C E 3 A R 4 7 8 0...
... compensation for CCM operation, fast AC reset after latch enabled, fixed voltage brownout detect and voltage detect for the burst selection. It is particular good for high voltage margin low power SMPS application such as auxiliary power supply for PC and server. The major characteristics are that t ...
... compensation for CCM operation, fast AC reset after latch enabled, fixed voltage brownout detect and voltage detect for the burst selection. It is particular good for high voltage margin low power SMPS application such as auxiliary power supply for PC and server. The major characteristics are that t ...
... In [28] Genetic and Bee algorithms are compared to nd optimal switching angles considering a proposed objective function for SHE problem. Regarding to their best results minimum line voltage THD for a 7-level inverter is 8.99%, While, in this study with considering the objective function is mostly ...
TDA3681 Multiple voltage regulator with switch and ignition buffer
... Pin HOLD is normally HIGH but is active LOW. Pin HOLD is connected to an open-collector NPN transistor and must have an external pull-up resistor to operate. The hold output is controlled by a low voltage detection circuit which, when activated, pulls the hold output LOW (enabled). The hold outputs ...
... Pin HOLD is normally HIGH but is active LOW. Pin HOLD is connected to an open-collector NPN transistor and must have an external pull-up resistor to operate. The hold output is controlled by a low voltage detection circuit which, when activated, pulls the hold output LOW (enabled). The hold outputs ...
TPS65142 LCD Bias Power Integrated with
... External pull-up resistor to be chosen so that the current flowing into XAO Pin (/XAO = 0 V) when active is below I(XAO) MIN = 1 mA. Maximum output voltage limited by the Overvoltage Protection and not the maximum Power Switch rating. Typical values are for reference only ...
... External pull-up resistor to be chosen so that the current flowing into XAO Pin (/XAO = 0 V) when active is below I(XAO) MIN = 1 mA. Maximum output voltage limited by the Overvoltage Protection and not the maximum Power Switch rating. Typical values are for reference only ...
Datasheet
... Saw-tooth & input feed-forward. The saw-tooth is generated by external Rswte and Cswte elements on the “SWT” pad (see the Typical Application 5V DCDC BUCK CONVERTER figure on page 2). The beginning of the charge of a series RC circuit is quite linear as long as the charge time is smaller than the RC ...
... Saw-tooth & input feed-forward. The saw-tooth is generated by external Rswte and Cswte elements on the “SWT” pad (see the Typical Application 5V DCDC BUCK CONVERTER figure on page 2). The beginning of the charge of a series RC circuit is quite linear as long as the charge time is smaller than the RC ...
ERMCO Components
... not have interrupting rating. They are coordinated to operate at high current levels that are typical of a transformer failure. When a transformer failure occurs, the Isolation Link will melt so that the opened primary circuit of a faulted transformer cannot be reenergized by the line crew. The isol ...
... not have interrupting rating. They are coordinated to operate at high current levels that are typical of a transformer failure. When a transformer failure occurs, the Isolation Link will melt so that the opened primary circuit of a faulted transformer cannot be reenergized by the line crew. The isol ...
ISL6308 - Intersil
... The ISL6308 is a three-phase PWM control IC with integrated MOSFET drivers. It provides a precision voltage regulation system for multiple applications including, but not limited to, high current low voltage point-of-load converters, embedded applications and other general purpose low voltage medium ...
... The ISL6308 is a three-phase PWM control IC with integrated MOSFET drivers. It provides a precision voltage regulation system for multiple applications including, but not limited to, high current low voltage point-of-load converters, embedded applications and other general purpose low voltage medium ...
ELECTRICITY AND BASIC ELECTRICAL COMPONENTS
... This document is based on the “Learn-by-Doing”® principle because simply reading about a technical subject is not the best way to learn. After all, you don't read about putting together a jigsaw puzzle, you put the puzzle together to solve the picture! Reading about a maze may help you to move throu ...
... This document is based on the “Learn-by-Doing”® principle because simply reading about a technical subject is not the best way to learn. After all, you don't read about putting together a jigsaw puzzle, you put the puzzle together to solve the picture! Reading about a maze may help you to move throu ...
Laboratory Exercices for Analog and Digital Circuits
... where the removed element was located. Calculate Norton's resistance "RN," substituting all supplies by zero (current power supplies are replaced by open circuits and voltage supplies are replaced by short circuits) and find the resulting resistance between the two tagged terminals. Calculate Norton ...
... where the removed element was located. Calculate Norton's resistance "RN," substituting all supplies by zero (current power supplies are replaced by open circuits and voltage supplies are replaced by short circuits) and find the resulting resistance between the two tagged terminals. Calculate Norton ...
AL8807A Description Pin Assignments
... As the CTRL pin is reduced below 2.5V the sense voltage will proportionally decrease. This means that the time taken for the LED/Switch current to ramp up to the upper threshold will decrease. The AL8807A, being a hysteretic converter, automatically compensates for the reduction in LED current by re ...
... As the CTRL pin is reduced below 2.5V the sense voltage will proportionally decrease. This means that the time taken for the LED/Switch current to ramp up to the upper threshold will decrease. The AL8807A, being a hysteretic converter, automatically compensates for the reduction in LED current by re ...
General Study on Piezoelectric Transformer
... Modeling is the premise of characteristic analysis and controller design. Precise model of Piezoelectric Transformer is the base of control and optimize. In this paper, the principle of transforming voltage is presented. In addition, different modeling methods were brought into comparisons. Merits, ...
... Modeling is the premise of characteristic analysis and controller design. Precise model of Piezoelectric Transformer is the base of control and optimize. In this paper, the principle of transforming voltage is presented. In addition, different modeling methods were brought into comparisons. Merits, ...
Reference Materials - Jefferson Electric
... delay for the first 5 to 10 cycles to avoid tripping under “turn-on” currents. ...
... delay for the first 5 to 10 cycles to avoid tripping under “turn-on” currents. ...
LM3670 - Texas Instruments
... either a single Li-Ion or three-cell NiMH/NiCd battery to portable devices such as cell phones and PDAs. Using a voltage mode architecture with synchronous rectification, the LM3670 can deliver up to 350 mA depending on the input voltage and output voltage (voltage head room), and the inductor chose ...
... either a single Li-Ion or three-cell NiMH/NiCd battery to portable devices such as cell phones and PDAs. Using a voltage mode architecture with synchronous rectification, the LM3670 can deliver up to 350 mA depending on the input voltage and output voltage (voltage head room), and the inductor chose ...
capacitors
... chemicals. The device produces a potential difference between its terminals and it is this potential difference that we use to power such things as batteries and clocks. Even computers depend on batteries. There are many types of batteries around and you can scan the web for some better answers, but ...
... chemicals. The device produces a potential difference between its terminals and it is this potential difference that we use to power such things as batteries and clocks. Even computers depend on batteries. There are many types of batteries around and you can scan the web for some better answers, but ...
Challenges of Dimming LED Loads on ELV and MLV
... a current-limiting component, such as a resistor, being used as the “driver”. The number of LEDs, as well as the series resistor value, is determined by the operating voltage the LED product designers are targeting for their application (typically 12 V or 24 V). Minimizing the resistor value maximiz ...
... a current-limiting component, such as a resistor, being used as the “driver”. The number of LEDs, as well as the series resistor value, is determined by the operating voltage the LED product designers are targeting for their application (typically 12 V or 24 V). Minimizing the resistor value maximiz ...
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.""