Diodes Inc. : new compact power packages, LED drivers
... The AP1537 is a 2A step-down switching regulator with PWM control. With an input voltage range up to 18V, it is perfect for use in LCD monitors, telecom equipment, computer peripherals, etc. AP1537 features ultra high efficiency with MLCC type external capacitors, saving cost and improving performan ...
... The AP1537 is a 2A step-down switching regulator with PWM control. With an input voltage range up to 18V, it is perfect for use in LCD monitors, telecom equipment, computer peripherals, etc. AP1537 features ultra high efficiency with MLCC type external capacitors, saving cost and improving performan ...
Power Fundamentals: Linear Regulator Fundamentals
... Linear-Regulator Operation • Voltage feedback samples the output R1 and R2 may be internal or external • Feedback controls pass transistor’s current to the load ...
... Linear-Regulator Operation • Voltage feedback samples the output R1 and R2 may be internal or external • Feedback controls pass transistor’s current to the load ...
May 2002 Efficient DC/DC Converter Provides Two 15A Outputs
... ASICs and FPGAs from a low input voltage. The first technique uses an internal boost regulator to provide a separate 5V for the MOSFET gate drive. Secondly, its Burst Mode operation achieves high efficiency at light loads. Lastly is the out-of-phase technique which minimizes input RMS losses and red ...
... ASICs and FPGAs from a low input voltage. The first technique uses an internal boost regulator to provide a separate 5V for the MOSFET gate drive. Secondly, its Burst Mode operation achieves high efficiency at light loads. Lastly is the out-of-phase technique which minimizes input RMS losses and red ...
DN130 - Power Supplies for Subscriber Line Interface Circuits
... range for the circuit is 9V to 18V. This circuit is intended for small wall adapters that power ISDN boxes. The output voltages are –23.8V at 50mA and – 71.5V at 60mA. The circuit shown in Figure 1 uses the LT1171 in standard flyback topology. The transformer’s turns ratio is 1:1:1:1, where 23.8V ap ...
... range for the circuit is 9V to 18V. This circuit is intended for small wall adapters that power ISDN boxes. The output voltages are –23.8V at 50mA and – 71.5V at 60mA. The circuit shown in Figure 1 uses the LT1171 in standard flyback topology. The transformer’s turns ratio is 1:1:1:1, where 23.8V ap ...
OSI
... DIN-RAIL-MOUNTED AC WATT TRANSDUCER DESCRIPTION The Model DW5 provides power measurement to within ±0.5% of full-scale accuracy in single- or polyphase systems. The electrically-isolated dc output is proportional to the instantaneous power averaged over several cycles. The DW5 is packaged in a DIN-R ...
... DIN-RAIL-MOUNTED AC WATT TRANSDUCER DESCRIPTION The Model DW5 provides power measurement to within ±0.5% of full-scale accuracy in single- or polyphase systems. The electrically-isolated dc output is proportional to the instantaneous power averaged over several cycles. The DW5 is packaged in a DIN-R ...
Wireless Music transmission and reception by IR
... voltages are 5V, 9V or 12V. But these voltages cannot be obtained directly. Thus the a.c input available at the mains supply i.e., 230V is to be brought down to the required voltage level. This is done by a transformer. Thus, a step down transformer is employed to decrease the voltage to a required ...
... voltages are 5V, 9V or 12V. But these voltages cannot be obtained directly. Thus the a.c input available at the mains supply i.e., 230V is to be brought down to the required voltage level. This is done by a transformer. Thus, a step down transformer is employed to decrease the voltage to a required ...
DC Regulated Power Supplies
... DC Regulated Power Supplies We are offering DC Regulated Power Supplies, which are designed and developed for standard single phase power supply of 230V and 50Hz. Clients can contact us for availing these power supplies in standard configurations with main cord, spare fuse and operating manual. Accu ...
... DC Regulated Power Supplies We are offering DC Regulated Power Supplies, which are designed and developed for standard single phase power supply of 230V and 50Hz. Clients can contact us for availing these power supplies in standard configurations with main cord, spare fuse and operating manual. Accu ...
12 volt power supply
... Every power supply must obtain the energy it supplies to its load, as well as any energy it consumes while performing that task, from an energy source. Depending on its design, a power supply may obtain energy from various types of energy sources, including electrical energy transmission systems, en ...
... Every power supply must obtain the energy it supplies to its load, as well as any energy it consumes while performing that task, from an energy source. Depending on its design, a power supply may obtain energy from various types of energy sources, including electrical energy transmission systems, en ...
CONSTANT FREQUENCY-UNIFIED POWER QUALITY
... UPQC is a combination of series active and shunt active filter. The series active filter and shunt active filters are used to compensate the voltage, current imbalance and harmonics. In order to avoid the switching oscillation, passive filters are placed at the output of each inverter. At the output ...
... UPQC is a combination of series active and shunt active filter. The series active filter and shunt active filters are used to compensate the voltage, current imbalance and harmonics. In order to avoid the switching oscillation, passive filters are placed at the output of each inverter. At the output ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.