AP1534 PWM CONTROL 2A STEP-DOWN CONVERTER Description
... AP1534 consists of step-down switching regulator with PWM control. These devices include a reference voltage source, oscillation circuit, error amplifier, internal PMOS. ...
... AP1534 consists of step-down switching regulator with PWM control. These devices include a reference voltage source, oscillation circuit, error amplifier, internal PMOS. ...
esdalc6v1w5 - STMicroelectronics
... These devices clamp the voltage just above the logic level supply for positive transients, and to a diode drop below ground for negative transients. ...
... These devices clamp the voltage just above the logic level supply for positive transients, and to a diode drop below ground for negative transients. ...
equipment in power distribution
... Monitoring and Report Monitoring and reports also reveal at what times there were particularly high loads. From here strategies can be developed to avoid such critical situations. Load Shedding Load shedding modules in an energy management system offer the possibility of specifying a "turn-of ...
... Monitoring and Report Monitoring and reports also reveal at what times there were particularly high loads. From here strategies can be developed to avoid such critical situations. Load Shedding Load shedding modules in an energy management system offer the possibility of specifying a "turn-of ...
Datasheet - DE-SWADJ
... The DE-SWADJ is designed to be the easiest possible way to utilize the benefits of switchmode power when you need an unusual or easily changed voltage. The DE-SWADJ family is pin-compatible with the common 78XX family of linear voltage regulators, and can step down to 1.25v to 13v with no external c ...
... The DE-SWADJ is designed to be the easiest possible way to utilize the benefits of switchmode power when you need an unusual or easily changed voltage. The DE-SWADJ family is pin-compatible with the common 78XX family of linear voltage regulators, and can step down to 1.25v to 13v with no external c ...
LPT100-M Series Electrical Specifications
... All outputs adjustable: -20%, +10%, except for +24V output on LPT104-M which will be -10%, +20% and 3.3 V output on the LPT101-M +10%, -15% Hold-up time: 10 ms @ 130 W load, 120 Vac input Overload protection: Short circuit protection on all outputs. Case overload protected @ 110 - 160% above rating ...
... All outputs adjustable: -20%, +10%, except for +24V output on LPT104-M which will be -10%, +20% and 3.3 V output on the LPT101-M +10%, -15% Hold-up time: 10 ms @ 130 W load, 120 Vac input Overload protection: Short circuit protection on all outputs. Case overload protected @ 110 - 160% above rating ...
2.1 Fundamental DC-DC Converter Topologies These graphics
... duty cycle limit, 50% or 80%. Always leave at least 5% margin in the usable maximum duty cycle. The margin leaves room for the duty cycle to increase in response to load variations and hence to maintain the output regulation. However, avoid using a very small duty cycle. A very small duty cycle will ...
... duty cycle limit, 50% or 80%. Always leave at least 5% margin in the usable maximum duty cycle. The margin leaves room for the duty cycle to increase in response to load variations and hence to maintain the output regulation. However, avoid using a very small duty cycle. A very small duty cycle will ...
Unit 1 Introduction to analogue
... Analogue systems perform certain operations. These operations are usually performed on signals where signals are electrical quantities, such as voltages or currents. For example, a microphone converts a human voice into a small voltage whose frequency and level change with time. The term Linear Elec ...
... Analogue systems perform certain operations. These operations are usually performed on signals where signals are electrical quantities, such as voltages or currents. For example, a microphone converts a human voice into a small voltage whose frequency and level change with time. The term Linear Elec ...
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... A) The resistance of an inductor increases. B) The resistance of an inductor decreases. C) The resistance of an inductor is unaffected. D) The inductor becomes purely reactive. ...
... A) The resistance of an inductor increases. B) The resistance of an inductor decreases. C) The resistance of an inductor is unaffected. D) The inductor becomes purely reactive. ...
Principles of Electronic Communication Systems
... In FDM, multiple signals are transmitted over a single channel, each signal being allocated a portion of the spectrum within that bandwidth. In time division multiplexing (TDM), each signal can occupy the entire bandwidth of the channel. Each signal, however, is transmitted for only a brief period o ...
... In FDM, multiple signals are transmitted over a single channel, each signal being allocated a portion of the spectrum within that bandwidth. In time division multiplexing (TDM), each signal can occupy the entire bandwidth of the channel. Each signal, however, is transmitted for only a brief period o ...
Unit 4 Voltage in Electrical Systems
... Voltage acts like a force Unlike charges attract Like charges repel There are three common ways of creating a voltage difference ...
... Voltage acts like a force Unlike charges attract Like charges repel There are three common ways of creating a voltage difference ...
ZXTN2007Z 30V NPN LOW SATURATION MEDIUM POWER TRANSISTOR IN SOT89 SUMMARY BV
... Fax: (49) 89 45 49 49 49 [email protected] ...
... Fax: (49) 89 45 49 49 49 [email protected] ...
DC988A - Linear Technology
... down for at least ½ second in order for the microcontroller to recognize a valid button event. It is assumed that DC988 will be tested with power provided from an external source, such as a lab bench supply. Under such an operating condition, the wire length between the DC988 board and the power sup ...
... down for at least ½ second in order for the microcontroller to recognize a valid button event. It is assumed that DC988 will be tested with power provided from an external source, such as a lab bench supply. Under such an operating condition, the wire length between the DC988 board and the power sup ...
RFPD2660 40MHz TO 1003MHz 23dB POWER DOUBLER HYBRID Features
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.