ADD8754-EVAL Evaluation Kit for LCD Power
... 20 V). With its factory setting, the boost converter can output up to 750 mA of load current. Typically, a TFT-LCD monitor requires about 500 mA of current at 10 V. For an accurate evaluation of the step-up regulator, it is recommended that an equivalent panel load (20 Ω to 40 Ω) be applied from BOO ...
... 20 V). With its factory setting, the boost converter can output up to 750 mA of load current. Typically, a TFT-LCD monitor requires about 500 mA of current at 10 V. For an accurate evaluation of the step-up regulator, it is recommended that an equivalent panel load (20 Ω to 40 Ω) be applied from BOO ...
High-Frequency Link: A Solution for Using Only One DC Source in
... The HFL feeds the auxiliary H-bridges. As can be seen in Fig. 2, the circuit is quite simple because it only needs the following: 1) a square-wave generator (H-bridge) of high frequency, rated at 20% of full power; 2) one multiwinding ferrite transformer; and 3) some bridge rectifiers with simple fa ...
... The HFL feeds the auxiliary H-bridges. As can be seen in Fig. 2, the circuit is quite simple because it only needs the following: 1) a square-wave generator (H-bridge) of high frequency, rated at 20% of full power; 2) one multiwinding ferrite transformer; and 3) some bridge rectifiers with simple fa ...
DLVP-100-300-3000 Manual 403615 Rev C
... The Dynaload is a precision instrument, which simulates electrical loads to test power supplies, generators, servo systems, batteries, and similar power sources. It simulates, at the option of the user, resistive loads (amps/volt) or may be switched to a constant current load characteristic (current ...
... The Dynaload is a precision instrument, which simulates electrical loads to test power supplies, generators, servo systems, batteries, and similar power sources. It simulates, at the option of the user, resistive loads (amps/volt) or may be switched to a constant current load characteristic (current ...
Chapter 4 : AC Machine
... – Can the IM run at the synchronous speed, why? – If rotor runs at the synchronous speed, which is the same speed of the rotating magnetic field, then the rotor will appear stationary to the rotating magnetic field and the rotating magnetic field will not cut the rotor. So, no induced current will f ...
... – Can the IM run at the synchronous speed, why? – If rotor runs at the synchronous speed, which is the same speed of the rotating magnetic field, then the rotor will appear stationary to the rotating magnetic field and the rotating magnetic field will not cut the rotor. So, no induced current will f ...
LNK520GN Datasheet - Mouser Electronics
... approximately equal to IDCT when VOUT is at the desired value at the minimum power supply input voltage. The final choice of R1 is made when the rest of the circuit design is complete. When the duty cycle drops below approximately 4%, the frequency is reduced, which reduces energy consumption under ...
... approximately equal to IDCT when VOUT is at the desired value at the minimum power supply input voltage. The final choice of R1 is made when the rest of the circuit design is complete. When the duty cycle drops below approximately 4%, the frequency is reduced, which reduces energy consumption under ...
MAX1744/MAX1745 High-Voltage, Step-Down DC-DC Controllers in µMAX General Description
... DC-DC converter controllers. These devices offer high efficiency over a wide range of input/output voltages and currents, making them optimal for use in applications such as telecom, automotive, and industrial control. Using an external P-channel MOSFET and current-sense resistor allows design flexi ...
... DC-DC converter controllers. These devices offer high efficiency over a wide range of input/output voltages and currents, making them optimal for use in applications such as telecom, automotive, and industrial control. Using an external P-channel MOSFET and current-sense resistor allows design flexi ...
Off-line high voltage converters
... begins to grow due to the IDDch current (see Table 7 on page 6) coming from the internal high voltage start up circuit. If the VDD voltage reaches VDDon threshold (see Table 7 on page 6) the power MOSFET starts switching and the HV current generator is turned OFF. See Figure 23 on page 16. The IC is ...
... begins to grow due to the IDDch current (see Table 7 on page 6) coming from the internal high voltage start up circuit. If the VDD voltage reaches VDDon threshold (see Table 7 on page 6) the power MOSFET starts switching and the HV current generator is turned OFF. See Figure 23 on page 16. The IC is ...
Infineon - Article - Surge current pulse generator
... caused by the off-state current gradient of the reverse current of the diodes and the inductance of the circle. Technology of the diodes In order to avoid high voltage overshoots at the blocking diodes, diodes with a higher softnessfactor are required. I.e., even within high dynamic charge, the reve ...
... caused by the off-state current gradient of the reverse current of the diodes and the inductance of the circle. Technology of the diodes In order to avoid high voltage overshoots at the blocking diodes, diodes with a higher softnessfactor are required. I.e., even within high dynamic charge, the reve ...
Ω MAX8506/MAX8507/MAX8508 PWM Step-Down DC-DC Converters with 75m
... Note 1: LX has internal clamp diodes to PGND and BATT. Applications that forward bias these diodes should take care not to exceed the IC’s package power-dissipation limits. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress rating ...
... Note 1: LX has internal clamp diodes to PGND and BATT. Applications that forward bias these diodes should take care not to exceed the IC’s package power-dissipation limits. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress rating ...
Quasi-Resonant Full-Wave Zero-Current Switching Buck
... result in simulation, this type of controlled must be designed. In the designed controller, principle of a capacitor’s linear charging with a constant current is used. The capacitor is charged with a constant current source. Then, when the capacitor voltage exceeded a pre-defined limit, another curr ...
... result in simulation, this type of controlled must be designed. In the designed controller, principle of a capacitor’s linear charging with a constant current is used. The capacitor is charged with a constant current source. Then, when the capacitor voltage exceeded a pre-defined limit, another curr ...
MP020-5 - Monolithic Power System
... In order to compensate the secondary side cable voltage drop for a more precise output voltage, the MP020-5 has an internal output cable compensation circuit as shown in Figure 8. The internal ZCD sample can detect the duty of the secondary-side diode. A low-pass filter converts the duty signal to a ...
... In order to compensate the secondary side cable voltage drop for a more precise output voltage, the MP020-5 has an internal output cable compensation circuit as shown in Figure 8. The internal ZCD sample can detect the duty of the secondary-side diode. A low-pass filter converts the duty signal to a ...
MAX16976 28V, 600mA Automotive Step-Down Converter with Low Operating Current General Description
... help refresh the BST capacitor when continuously operated in dropout. When the high-side switch is on for three consecutive clock cycles, the device forces the high-side switch off during the final 35% of the fourth clock cycle. When the high-side switch is off, the LX node is pulled low by the curr ...
... help refresh the BST capacitor when continuously operated in dropout. When the high-side switch is on for three consecutive clock cycles, the device forces the high-side switch off during the final 35% of the fourth clock cycle. When the high-side switch is off, the LX node is pulled low by the curr ...
ADP5135 Preliminary Data Sheet Triple 1800 mA Buck Regulators
... level, the switching regulators operate in auto PWM/PSM mode. In this mode, the regulators operate at fixed PWM frequency when the load current is above the PSM current threshold. When the load current falls below the PSM current threshold, the regulator in question enters PSM, where the switching o ...
... level, the switching regulators operate in auto PWM/PSM mode. In this mode, the regulators operate at fixed PWM frequency when the load current is above the PSM current threshold. When the load current falls below the PSM current threshold, the regulator in question enters PSM, where the switching o ...
6000
... Input Power Fuse Holder and Input Voltage Selector: Acceptable input voltage ratings are 100V, 120V, 220V and 240V. The selected input voltage is set to the position above the mark (the rear panel above shows that the input voltage is set to 100V). ...
... Input Power Fuse Holder and Input Voltage Selector: Acceptable input voltage ratings are 100V, 120V, 220V and 240V. The selected input voltage is set to the position above the mark (the rear panel above shows that the input voltage is set to 100V). ...
D388A Electroluminescent Lamp and White LED Driver IC DLL3A
... The preceding block diagram for the D388A IC outlines the various subsystems of the device. The different on-chip logic blocks control the LF and HF oscillators, LED to EL pulse energy ratio, LED dimming level, and enable input processing. These signals are combined and buffered to control the high ...
... The preceding block diagram for the D388A IC outlines the various subsystems of the device. The different on-chip logic blocks control the LF and HF oscillators, LED to EL pulse energy ratio, LED dimming level, and enable input processing. These signals are combined and buffered to control the high ...
3 - ResearchGate
... across the discharge gap). As was shown in [13, 14], to form a high-conductivity channel in the atmosphere, which could commute an artificial or natural discharge (lightning), the gas must be heated to a temperature from 6000 to 8000K, when thermal ionization begins. This condition is crucial, becau ...
... across the discharge gap). As was shown in [13, 14], to form a high-conductivity channel in the atmosphere, which could commute an artificial or natural discharge (lightning), the gas must be heated to a temperature from 6000 to 8000K, when thermal ionization begins. This condition is crucial, becau ...
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.""