DC1923A - Linear Technology
... Once the converter is started the LTC3129-1 can operate with VIN as low as 1.92V provided VCC is back-fed. Consult the data sheet for more information on these options. ...
... Once the converter is started the LTC3129-1 can operate with VIN as low as 1.92V provided VCC is back-fed. Consult the data sheet for more information on these options. ...
Go Picture These! - Lake Area Radio Klub
... A precaution taken when measuring circuit resistance with an ohmmeter is to ensure that the circuit is not powered. T7D6 Attempting to measure voltage when using the resistance setting might damage a multimeter. T7D10 When an ohmmeter is connected across a circuit and initially indicates a low resis ...
... A precaution taken when measuring circuit resistance with an ohmmeter is to ensure that the circuit is not powered. T7D6 Attempting to measure voltage when using the resistance setting might damage a multimeter. T7D10 When an ohmmeter is connected across a circuit and initially indicates a low resis ...
LM22673 - Texas Instruments
... voltage step-down (buck) regulator using a minimum of external components. This easy to use regulator incorporates a 42 V N-channel MOSFET switch capable of providing up to 3 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control o ...
... voltage step-down (buck) regulator using a minimum of external components. This easy to use regulator incorporates a 42 V N-channel MOSFET switch capable of providing up to 3 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control o ...
radio-frequency (rf) system - Variable Energy Cyclotron Centre
... The 3-phase rf system of Superconducting (Sc) cyclotron has been developed in the frequency range 9 – 27 MHz with amplitude and phase stability of 100 ppm and ±0.5o respectively. Each dee along with half-wave coaxial cavity develops peak voltage of 100kV having fed with rf power (~80kW) from each of ...
... The 3-phase rf system of Superconducting (Sc) cyclotron has been developed in the frequency range 9 – 27 MHz with amplitude and phase stability of 100 ppm and ±0.5o respectively. Each dee along with half-wave coaxial cavity develops peak voltage of 100kV having fed with rf power (~80kW) from each of ...
Chapter 1 : Introduction to Electronic Communications System
... The bandpass filter limits the frequency of the analog input signal to the standard voice-band frequency range of 300 Hz ~ 3000 Hz. The sample-and-hold circuit periodically samples the analog input signal and converts those samples to a multilevel PAM signal. The analog-to-digital converter (ADC) co ...
... The bandpass filter limits the frequency of the analog input signal to the standard voice-band frequency range of 300 Hz ~ 3000 Hz. The sample-and-hold circuit periodically samples the analog input signal and converts those samples to a multilevel PAM signal. The analog-to-digital converter (ADC) co ...
Aalborg Universitet A Flexible Five-level Cascaded H-bridge Inverter for Photovoltaic Grid-connected Systems
... parallel operation of the two DC sources only by the internal paths of cascaded inverter, the S13 − S 21 and S12 − S 24 should be on at the same time. However, the IGBT S13 , S12 and S 21 , S 24 are in the same arm and cannot be on simultaneously. So the parallel connection of inverters cannot be ac ...
... parallel operation of the two DC sources only by the internal paths of cascaded inverter, the S13 − S 21 and S12 − S 24 should be on at the same time. However, the IGBT S13 , S12 and S 21 , S 24 are in the same arm and cannot be on simultaneously. So the parallel connection of inverters cannot be ac ...
Multiple Clock and Voltage Domains for Chip Multi Processors
... Operation point and constraints • Process technology voltages – Voltage range Vmin – Vmax – Frequency range fmin – 2fmin ...
... Operation point and constraints • Process technology voltages – Voltage range Vmin – Vmax – Frequency range fmin – 2fmin ...
ZXLD383 Summary A Product Line of
... VOUT reaches the load LED’s forward (on) voltage, the inductor current is transferred from the internal switch to the LED, starting the energy discharge cycle. With the voltage across the inductor reversed, the current flowing through it (and the LED) now falls. When the inductor current reaches zer ...
... VOUT reaches the load LED’s forward (on) voltage, the inductor current is transferred from the internal switch to the LED, starting the energy discharge cycle. With the voltage across the inductor reversed, the current flowing through it (and the LED) now falls. When the inductor current reaches zer ...
TIP47/48/49/50 NPN Silicon Transistor
... This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. ...
... This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. ...
STEVAL-IPM15B motor control power board based on the SLLIMM
... Input signals The input signals (LINx and HINx), able to drive the internal IGBTs, are active high. A 100 kΩ (typ.) pull-down resistor is built-in for each input signal. In order to prevent input signal oscillation, an RC filter was added on each input and placed as close as possible to the IPM. The ...
... Input signals The input signals (LINx and HINx), able to drive the internal IGBTs, are active high. A 100 kΩ (typ.) pull-down resistor is built-in for each input signal. In order to prevent input signal oscillation, an RC filter was added on each input and placed as close as possible to the IPM. The ...
PCS100 AVC-20 Technical Catalogue
... much less than one second. When a sag or surge occurs, power protection equipment that measures correction times in percent per second may be too slow to correct the voltage supply to these precision machines, such as drives, PLCs, servo motors computers, sensors, etc., leaving them at risk of malfu ...
... much less than one second. When a sag or surge occurs, power protection equipment that measures correction times in percent per second may be too slow to correct the voltage supply to these precision machines, such as drives, PLCs, servo motors computers, sensors, etc., leaving them at risk of malfu ...
Handy Board
... • Internal 9.6v nicad battery with built in recharging circuit. • Hardware 38 kHz oscillator and drive transistor for IR output and on-board 38 kHz IR receiver. • 8-pin powered connector to 6811 SPI circuit. • Expansion bus with chip selects. • 4.25 x 3.15 inches. ...
... • Internal 9.6v nicad battery with built in recharging circuit. • Hardware 38 kHz oscillator and drive transistor for IR output and on-board 38 kHz IR receiver. • 8-pin powered connector to 6811 SPI circuit. • Expansion bus with chip selects. • 4.25 x 3.15 inches. ...
OWNER/INSTALLER INSTRUCTION MANUAL ET100
... narrow portion of the slotted hole to ensure that the time switch is securely held in place. The remaining two mounting holes are accessible without removing the time switch mechanism and will provide secure and permanent mounting of the time switch. 2. If you do remove the mechanism, refer to Figur ...
... narrow portion of the slotted hole to ensure that the time switch is securely held in place. The remaining two mounting holes are accessible without removing the time switch mechanism and will provide secure and permanent mounting of the time switch. 2. If you do remove the mechanism, refer to Figur ...
General
... The data logger has two serial ports. The first serial port is used for the communication between data logger and host PC. The second serial port is used for one of the following signal sources (or sinks): NMEA-protocol: If the baud rate is set to either 4800 baud or 38400 baud, the data logger expe ...
... The data logger has two serial ports. The first serial port is used for the communication between data logger and host PC. The second serial port is used for one of the following signal sources (or sinks): NMEA-protocol: If the baud rate is set to either 4800 baud or 38400 baud, the data logger expe ...
maximum power point tracking of pv arrays under partial
... There exists a variety of maximum power point tracking (MPPT) techniques, each having its own merits and demerits. Under partialshading conditions, the conventional tracking techniques fail to guarantee successful tracking of the global maximum power, ie the conventional MPPT methods such as perturb ...
... There exists a variety of maximum power point tracking (MPPT) techniques, each having its own merits and demerits. Under partialshading conditions, the conventional tracking techniques fail to guarantee successful tracking of the global maximum power, ie the conventional MPPT methods such as perturb ...
AN-42036 PCB Grounding System and FAN2001/FAN2011 High Performance DC-DC Converters Introduction
... local ground different than zero volts, depending on circuit topology and element location. If the current is high and if there are ground sensitive circuits connected to this current path, the voltage drop across the parasitic ground resistance will produce offsets in the voltage measurements of th ...
... local ground different than zero volts, depending on circuit topology and element location. If the current is high and if there are ground sensitive circuits connected to this current path, the voltage drop across the parasitic ground resistance will produce offsets in the voltage measurements of th ...
DataSheet - Monolithic Power System
... Charge Pump Capacitor #2 Negative Node. Connect the negative side of the #2 charge pump capacitor to C2B. Charge Pump Capacitor #1 Negative Node. Connect the negative side of the #1 charge pump capacitor to C1B. Charge Pump Capacitor #1 Positive Node. Connect the positive side of the #1 charge pump ...
... Charge Pump Capacitor #2 Negative Node. Connect the negative side of the #2 charge pump capacitor to C2B. Charge Pump Capacitor #1 Negative Node. Connect the negative side of the #1 charge pump capacitor to C1B. Charge Pump Capacitor #1 Positive Node. Connect the positive side of the #1 charge pump ...
4.5V to 18V Input, 5A/5A Dual Synchronous
... Each buck converter in TPS65279V can also be I2C controlled for enabling/disabling output voltage, setting the pulse skipping mode and reading the power good status and die temperature warning. The switching frequency of the converters can be set from 200 kHz to 1.6 MHz with an external resistor. Tw ...
... Each buck converter in TPS65279V can also be I2C controlled for enabling/disabling output voltage, setting the pulse skipping mode and reading the power good status and die temperature warning. The switching frequency of the converters can be set from 200 kHz to 1.6 MHz with an external resistor. Tw ...
FMCA Article: “Keep your Motorhome`s Electrical System Safe...”
... circuit. It includes protection against miswired pedestals plus low-voltage (less than 104 volts) and high-voltage (more than 132 volts) protection. It also monitors AC frequency and will shut down power to the motorhome should it be out of tolerance. A handy remote display panel features an LED mon ...
... circuit. It includes protection against miswired pedestals plus low-voltage (less than 104 volts) and high-voltage (more than 132 volts) protection. It also monitors AC frequency and will shut down power to the motorhome should it be out of tolerance. A handy remote display panel features an LED mon ...
Debouncing Switches
... -a 10uS bounce (short) is (1x10-5/62.5x10-9) 160 instructions long! -a 100uS bounce could be sampled as a valid true or false 100’s of times -results are incorrect behavior as seen by user Characteristics of switch bounce: -nearly all switches do it -the duration of bouncing and the period of each b ...
... -a 10uS bounce (short) is (1x10-5/62.5x10-9) 160 instructions long! -a 100uS bounce could be sampled as a valid true or false 100’s of times -results are incorrect behavior as seen by user Characteristics of switch bounce: -nearly all switches do it -the duration of bouncing and the period of each b ...
ZXLD1322 - Diodes Incorporated
... The ZXLD1322 is an inductive DC-DC converter, with an internal switch, designed for driving single or multiple LEDs in series up to a total of 700mA output current. Applications cover input voltages ranging from 2.5V to 15V. Depending upon supply voltage and external components, this can provide up ...
... The ZXLD1322 is an inductive DC-DC converter, with an internal switch, designed for driving single or multiple LEDs in series up to a total of 700mA output current. Applications cover input voltages ranging from 2.5V to 15V. Depending upon supply voltage and external components, this can provide up ...
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.