MAX258 500mA, Push-Pull Transformer Driver for Isolated Power Supplies General Description
... The primary must be center-tapped; however the secondary winding may or may not be center-tapped, depending on the rectifier topology used. The phasing between primary and secondary windings is not critical. The transformer turns ratio must be set to provide the minimum required output voltage at th ...
... The primary must be center-tapped; however the secondary winding may or may not be center-tapped, depending on the rectifier topology used. The phasing between primary and secondary windings is not critical. The transformer turns ratio must be set to provide the minimum required output voltage at th ...
Resonant-Switching Driver Controller for LED
... The TPS92023 is a high-performance resonantswitching LED driver controller. It is designed for use in higher power LED lighting systems. The TPS92023 uses resonant switching in an LLC topology to achieve a very high efficiency compared to traditional half-bridge converters. The programmable dead tim ...
... The TPS92023 is a high-performance resonantswitching LED driver controller. It is designed for use in higher power LED lighting systems. The TPS92023 uses resonant switching in an LLC topology to achieve a very high efficiency compared to traditional half-bridge converters. The programmable dead tim ...
Improved Spice Models of Aluminum Electrolytic - Digi
... generally so large that it can be neglected. At high frequencyresistivity products (such as high frequencies and/or temperatures below 0 ºC), this capacitance rolls off rapidly with increasing frequency. There is a parallel resistance RP coupled with the paper capacitance CP . At high frequencies CP ...
... generally so large that it can be neglected. At high frequencyresistivity products (such as high frequencies and/or temperatures below 0 ºC), this capacitance rolls off rapidly with increasing frequency. There is a parallel resistance RP coupled with the paper capacitance CP . At high frequencies CP ...
OP282
... excellent speed at exceptionally low supply currents. The slew rate is typically 9 V/μs with a supply current under 250 μA per amplifier. These unity-gain stable amplifiers have a typical gain bandwidth of 4 MHz. ...
... excellent speed at exceptionally low supply currents. The slew rate is typically 9 V/μs with a supply current under 250 μA per amplifier. These unity-gain stable amplifiers have a typical gain bandwidth of 4 MHz. ...
here - Transaction on electrical engineering
... displays the schema of the control algorithm, which is considered to be a standard dual current controller [1]-[2]. This control system is based on calculation of the ...
... displays the schema of the control algorithm, which is considered to be a standard dual current controller [1]-[2]. This control system is based on calculation of the ...
Teacher`s Guide - Activity P48: Transformer
... Take time to answer the ‘What Do You Think?’ question(s) in the Lab Report section. Background ...
... Take time to answer the ‘What Do You Think?’ question(s) in the Lab Report section. Background ...
Repair Tips for Bearcat Scanners
... generate plus and minus voltages in excess of 20 volts DC. When this switcher fails to function, the display goes blank, but the squelch control appears to work, and white noise can be heard in the speaker. In almost a dozen of the BC300 and BC800XLT scanners I've fixed, C98, a capacitor in series w ...
... generate plus and minus voltages in excess of 20 volts DC. When this switcher fails to function, the display goes blank, but the squelch control appears to work, and white noise can be heard in the speaker. In almost a dozen of the BC300 and BC800XLT scanners I've fixed, C98, a capacitor in series w ...
EE05 MITS sadhna 1
... drives [3, 9], utility interface for renewable energy systems [10], flexible AC transmission system (FACTS) [11], and traction drive systems [12]. The inverters in such application areas as stated above should be able to handle high voltage and large power. Therefore, two-level high-voltage and larg ...
... drives [3, 9], utility interface for renewable energy systems [10], flexible AC transmission system (FACTS) [11], and traction drive systems [12]. The inverters in such application areas as stated above should be able to handle high voltage and large power. Therefore, two-level high-voltage and larg ...
EXAMPLES OF STATOR WINDING PARTIAL DISCHARGE DUE TO INVERTER DRIVES
... dropped across the first few turns in the winding [2,3]. With the high inter-turn voltage across adjacent turns of magnet wire, and given the relatively small diameter of the magnet wire, it seems that partial discharge can sometimes originate in the air space between two adjacent turns [5-7]. Since ...
... dropped across the first few turns in the winding [2,3]. With the high inter-turn voltage across adjacent turns of magnet wire, and given the relatively small diameter of the magnet wire, it seems that partial discharge can sometimes originate in the air space between two adjacent turns [5-7]. Since ...
High-efficiency, high step-up DC-DC converters
... adding one additional diode and a small capacitor, the proposed converters’ operation is similar to that of their active-clamp counterparts, but with better performance. In the proposed converters, the additional diode serves as the body diode of the active-clamp switch. The coupled winding and outp ...
... adding one additional diode and a small capacitor, the proposed converters’ operation is similar to that of their active-clamp counterparts, but with better performance. In the proposed converters, the additional diode serves as the body diode of the active-clamp switch. The coupled winding and outp ...
Device Functions Numbers
... Numbers and letters are used in electrical drawings, diagrams, instruction books, and specifications to describe the purpose of certain switchgear. A device function number, with suffix letters and a prefix where appropriate, identifies what the device is expected to accomplish. Figure 1 is a one-li ...
... Numbers and letters are used in electrical drawings, diagrams, instruction books, and specifications to describe the purpose of certain switchgear. A device function number, with suffix letters and a prefix where appropriate, identifies what the device is expected to accomplish. Figure 1 is a one-li ...
A Power-Efficient Neural Tissue Stimulator With Energy Recovery , Member, IEEE
... Power consumption within the electrode occurs in the resistive portion. Therefore, the theoretical minimum power required to drive the electrode with current I, or more appropriately, to drive the electrode to charge in time /2 (one phase of the biphasic waveform), is simply ...
... Power consumption within the electrode occurs in the resistive portion. Therefore, the theoretical minimum power required to drive the electrode with current I, or more appropriately, to drive the electrode to charge in time /2 (one phase of the biphasic waveform), is simply ...
TPS61040-Q1 数据资料 dataSheet 下载
... The TPS61040/41 operates with an input voltage range of 1.8 V to 6 V and can generate output voltages up to 28 V. The device operates in a pulse frequency modulation (PFM) scheme with constant peak current control. This control scheme maintains high efficiency over the entire load current range, and ...
... The TPS61040/41 operates with an input voltage range of 1.8 V to 6 V and can generate output voltages up to 28 V. The device operates in a pulse frequency modulation (PFM) scheme with constant peak current control. This control scheme maintains high efficiency over the entire load current range, and ...
CAT4201 - 350 mA High Efficiency Step Down LED Driver
... designed to drive series connected high−power LEDs. LED strings with total forward voltages of up to 32 V can be driven with bias currents of up to 350 mA. During the first switching phase, an integrated high voltage power MOSFET allows the inductor current to charge linearly until the peak maximum ...
... designed to drive series connected high−power LEDs. LED strings with total forward voltages of up to 32 V can be driven with bias currents of up to 350 mA. During the first switching phase, an integrated high voltage power MOSFET allows the inductor current to charge linearly until the peak maximum ...
Capacitors for Power Factor Correction
... In case of dents of more than 1 mm depth or any other mechanical damage, capacitors must not be used at all. This applies also in cases of oil leakages. To ensure the full functionality of the overpressure disconnector, elastic elements must not be hindered and a minimum space of 12 mm has to ...
... In case of dents of more than 1 mm depth or any other mechanical damage, capacitors must not be used at all. This applies also in cases of oil leakages. To ensure the full functionality of the overpressure disconnector, elastic elements must not be hindered and a minimum space of 12 mm has to ...
Analysis and Design of Controllable Class E Low dv/dt Synchronous
... rectification efficiency. Many published papers [1][7] have been presented many topologies of the class E rectifier, in which the operating frequency is varied against the variation of load or line voltage. To avoid problems accompanied by variation of operating frequency, we present the current dri ...
... rectification efficiency. Many published papers [1][7] have been presented many topologies of the class E rectifier, in which the operating frequency is varied against the variation of load or line voltage. To avoid problems accompanied by variation of operating frequency, we present the current dri ...
A Marantz 8B Replica
... issue of Radio Gijutsu magazine1 and the original circuit diagram of Marantz 8B2. What I learned from these were that the Marantz 8B consists of a basic resistor-loaded voltage driver by a triode-connected 6BH6, a long-tail phase splitter by 6CG7/6FQ7, and a pair of push-pull EL34s for the amplifier ...
... issue of Radio Gijutsu magazine1 and the original circuit diagram of Marantz 8B2. What I learned from these were that the Marantz 8B consists of a basic resistor-loaded voltage driver by a triode-connected 6BH6, a long-tail phase splitter by 6CG7/6FQ7, and a pair of push-pull EL34s for the amplifier ...
The Ideal Transformer Description and Circuit Symbol As with all the
... broadcasting frequency, with one connection to the tower and the other to a solid earth ground connection. (How the 50 kW leaves the electrical circuit and is launched as a traveling radio wave is outside the scope of this circuits course, and nowhere explained in our book!) This situation is sketch ...
... broadcasting frequency, with one connection to the tower and the other to a solid earth ground connection. (How the 50 kW leaves the electrical circuit and is launched as a traveling radio wave is outside the scope of this circuits course, and nowhere explained in our book!) This situation is sketch ...
Ultra-Thin, Small Footprint 1-W, 12- to 36
... topology, with a wide operating range of input voltage from 4.75 to 28 V providing up to a 500-mA output current. The TPS62175 automatically enters power save mode at light loads, to maintain high efficiency across the whole load range. As well, it features a Sleep mode to supply applications with a ...
... topology, with a wide operating range of input voltage from 4.75 to 28 V providing up to a 500-mA output current. The TPS62175 automatically enters power save mode at light loads, to maintain high efficiency across the whole load range. As well, it features a Sleep mode to supply applications with a ...
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.""