Backlight Driver for 5 LEDs with Charge Pump and PWM Control
... The device provides backlight current using up to five matched current sinks. The load and supply conditions determine whether the charge pump operates in 1x, 1.5x, or 2x mode. The maximum current per LED is set by a resistor (RISET ) connected from the ISET pin to the input voltage. The current can ...
... The device provides backlight current using up to five matched current sinks. The load and supply conditions determine whether the charge pump operates in 1x, 1.5x, or 2x mode. The maximum current per LED is set by a resistor (RISET ) connected from the ISET pin to the input voltage. The current can ...
MAX8552 High-Speed, Wide-Input, Single-Phase MOSFET Driver General Description
... the Low-Side MOSFET At high input voltages, fast turn-on of the high-side MOSFET can momentarily turn on the low-side MOSFET due to the high dV/dt appearing at the drain of the low-side MOSFET. The high dV/dt causes a current flow through the Miller capacitance (CRSS) and the input capacitance (CISS ...
... the Low-Side MOSFET At high input voltages, fast turn-on of the high-side MOSFET can momentarily turn on the low-side MOSFET due to the high dV/dt appearing at the drain of the low-side MOSFET. The high dV/dt causes a current flow through the Miller capacitance (CRSS) and the input capacitance (CISS ...
Final Presentation
... and sampling the FPGA’s pins and the transceiver’s inputs/outputs – Sampling the regulators ...
... and sampling the FPGA’s pins and the transceiver’s inputs/outputs – Sampling the regulators ...
Evaluates: MAX1760 MAX1760 Evaluation Kit General Description Features
... The MAX1760 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains a boost switching-regulator circuit. The EV kit provides a regulated +3.3V output at up to 800mA of current. The input voltage range is +0.7V to +5.5V. However, the output voltage rises abov ...
... The MAX1760 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains a boost switching-regulator circuit. The EV kit provides a regulated +3.3V output at up to 800mA of current. The input voltage range is +0.7V to +5.5V. However, the output voltage rises abov ...
0 - the Fox Valley Division of the NMRA
... First, some basics —Transistor : a device used to amplify and switch an electric signal. It has three terminals, base, emitter and collector. In our circuit we switch it on or switch it off by applying a voltage to its base . —Diode : a component with 2 leads or electrodes, between which allows a t ...
... First, some basics —Transistor : a device used to amplify and switch an electric signal. It has three terminals, base, emitter and collector. In our circuit we switch it on or switch it off by applying a voltage to its base . —Diode : a component with 2 leads or electrodes, between which allows a t ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... switches operating at a frequency near the fundamental [4]. Although, in low-power applications, the switching frequency of the power switches is not restricted, a low switching frequency can increase the efficiency of the converter. Additionally, multilevel converters feature several dc links, maki ...
... switches operating at a frequency near the fundamental [4]. Although, in low-power applications, the switching frequency of the power switches is not restricted, a low switching frequency can increase the efficiency of the converter. Additionally, multilevel converters feature several dc links, maki ...
FAN6754A Highly Integrated Green- Mode PWM Controller Brownout and V
... Green-Mode Operation The proprietary green-mode function provides off-time modulation to reduce the switching frequency in lightload and no-load conditions. VFB, which is derived from the voltage feedback loop, is taken as the reference. Once VFB is lower than the threshold voltage (VFB-N), the swit ...
... Green-Mode Operation The proprietary green-mode function provides off-time modulation to reduce the switching frequency in lightload and no-load conditions. VFB, which is derived from the voltage feedback loop, is taken as the reference. Once VFB is lower than the threshold voltage (VFB-N), the swit ...
Obstacle Avoidance
... application. • 802.11 Wi-Fi used as a physical layer with TCP sockets used for higher level ...
... application. • 802.11 Wi-Fi used as a physical layer with TCP sockets used for higher level ...
User Manual User Manual Hypex UcD S Hypex UcD S Hypex UcD
... J7/J8/J9 (J22). If desired, auxiliary supply can be connected to J12/J13/J14. This low voltage, low power connection can be used for pre-amplifier use. Maximum current: 100 mA. A LED may be connected as POWER-ON indicator. The UcD Supply has DC-protection circuitry thus allowing the amplifier to shu ...
... J7/J8/J9 (J22). If desired, auxiliary supply can be connected to J12/J13/J14. This low voltage, low power connection can be used for pre-amplifier use. Maximum current: 100 mA. A LED may be connected as POWER-ON indicator. The UcD Supply has DC-protection circuitry thus allowing the amplifier to shu ...
ijser.org - Sudan University of Science and Technology
... the DC output voltage is smooth. Figure 13 presents the DC output voltage of the boost converter using voltage oriented control when V dc-ref is set to 200V. The DC output voltage has initial overshoot reach to 340V at the first 0.1s, and then the DC output voltage is 200V. Therefore the charger is ...
... the DC output voltage is smooth. Figure 13 presents the DC output voltage of the boost converter using voltage oriented control when V dc-ref is set to 200V. The DC output voltage has initial overshoot reach to 340V at the first 0.1s, and then the DC output voltage is 200V. Therefore the charger is ...
Slide 1
... • Has a specified value of electrical resistance to resist current flow • Colour codes used to decode the value of the resistor ...
... • Has a specified value of electrical resistance to resist current flow • Colour codes used to decode the value of the resistor ...
Wisnu Electronics Pemancar Rf-Kits
... er meter up to 10kW modules Support additional external protection port ...
... er meter up to 10kW modules Support additional external protection port ...
Solid State Relais
... A Solid State Relay is actually not a relay at all. There is no 'relay' present, just the electronics which does the switching. It works the same way as a relay; you can use a low voltage to switch a higher voltage or better. This 'relay' is positioned in between one of the 115/220V AC wires althoug ...
... A Solid State Relay is actually not a relay at all. There is no 'relay' present, just the electronics which does the switching. It works the same way as a relay; you can use a low voltage to switch a higher voltage or better. This 'relay' is positioned in between one of the 115/220V AC wires althoug ...
C270 Stereo Power Amplifier
... the highly reviewed C320 and C340. The ISC topology allows the C270 to deliver maximum performance under virtually any circumstance, independent ...
... the highly reviewed C320 and C340. The ISC topology allows the C270 to deliver maximum performance under virtually any circumstance, independent ...
2 outputs, voltage and current
... Postfach 13 57 97803 Lohr, Germany Bgm.-Dr.-Nebel-Str. 2 97816 Lohr, Germany Tel. +49 9352 18-0 Fax +49 9352 18-8400 www.boschrexroth.com/electrics ...
... Postfach 13 57 97803 Lohr, Germany Bgm.-Dr.-Nebel-Str. 2 97816 Lohr, Germany Tel. +49 9352 18-0 Fax +49 9352 18-8400 www.boschrexroth.com/electrics ...
T4000 Auto Synchronizer
... Impedance adaption of the output (OUTPUT TO GOV.) to individual electronic speed controllers can be done using terminals 23 to 26. Output on terminal 22 is variable (adjustable by a screwdriver at VARIABLE OUT 22). ...
... Impedance adaption of the output (OUTPUT TO GOV.) to individual electronic speed controllers can be done using terminals 23 to 26. Output on terminal 22 is variable (adjustable by a screwdriver at VARIABLE OUT 22). ...
Multilayer Varistor Application Note
... MOVs are made of oxidized zinc grains and small amounts of other metal oxides between two metal electrode plates (see Figure 1). These large adjacent grains form diode junctions that allow current to flow in only one direction. These “diode junctions” arrange themselves in such a way that they perfo ...
... MOVs are made of oxidized zinc grains and small amounts of other metal oxides between two metal electrode plates (see Figure 1). These large adjacent grains form diode junctions that allow current to flow in only one direction. These “diode junctions” arrange themselves in such a way that they perfo ...
CIRCUIT FUNCTION AND BENEFITS
... this circuit provides stability over temperature because the AD8318 RF detector ensures the same level of temperature stability at the output of the ADL5330 VGA. The addition of the log amp detector converts the ADL5330 from an open-loop variable gain amplifier to a closed-loop output power control ...
... this circuit provides stability over temperature because the AD8318 RF detector ensures the same level of temperature stability at the output of the ADL5330 VGA. The addition of the log amp detector converts the ADL5330 from an open-loop variable gain amplifier to a closed-loop output power control ...
DN500 - Wide Input Voltage Range Boost/Inverting/SEPIC
... A 2.5V to 15V to 12V SEPIC Converter Figure 1 shows a 2.5V to 15V input, 12V/2.5A output SEPIC power supply using the LT3759. The typical efficiency for this converter is shown in Figure 2. Figure 3 shows the switch waveform during an output shortcircuit event. Notice how the switching frequency fol ...
... A 2.5V to 15V to 12V SEPIC Converter Figure 1 shows a 2.5V to 15V input, 12V/2.5A output SEPIC power supply using the LT3759. The typical efficiency for this converter is shown in Figure 2. Figure 3 shows the switch waveform during an output shortcircuit event. Notice how the switching frequency fol ...
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.