Diodes and Capacitors
... Rectification allows the production of a DC signal from an AC input. However, the DC is imperfect, as it still has a great level of variation in its voltage. Microchips require a perfect DC supply of around 5 V. A rectified signal is not good enough to continuously run a chip in a circuit, due to th ...
... Rectification allows the production of a DC signal from an AC input. However, the DC is imperfect, as it still has a great level of variation in its voltage. Microchips require a perfect DC supply of around 5 V. A rectified signal is not good enough to continuously run a chip in a circuit, due to th ...
Magnetism and Transformers
... induces a magnetic flux (field) in the iron core. • The flux flows through the core and induces a current the secondary windings. • Thus power flows via the magnetic field without the windings being electrically connected. ...
... induces a magnetic flux (field) in the iron core. • The flux flows through the core and induces a current the secondary windings. • Thus power flows via the magnetic field without the windings being electrically connected. ...
PHD main
... 1) Formulation of the new control structure characterized by application of position reference block cooperating with modified PID position controller and dependence of supply amplifier voltage of position reference 2) Formulation and verification mathematical model of galvoscanner that can be used ...
... 1) Formulation of the new control structure characterized by application of position reference block cooperating with modified PID position controller and dependence of supply amplifier voltage of position reference 2) Formulation and verification mathematical model of galvoscanner that can be used ...
MAX8718/MAX8719 High-Voltage, Low
... The MAX8718/MAX8719 are micropower, 8-pin TDFN linear regulators that supply always-on, keep-alive power to CMOS RAM, real-time clocks (RTC), and microcontrollers in systems with high-voltage batteries. The circuits consist of a 100mA linear regulator and a power-good comparator (PGOOD) with fixed-o ...
... The MAX8718/MAX8719 are micropower, 8-pin TDFN linear regulators that supply always-on, keep-alive power to CMOS RAM, real-time clocks (RTC), and microcontrollers in systems with high-voltage batteries. The circuits consist of a 100mA linear regulator and a power-good comparator (PGOOD) with fixed-o ...
Improved Phase Shedding Techniques in Interleaved Converters
... Implementing this control for the converter is very complicated. Definite controls for detecting the point where current crosses 0 and the point where current reaches the average value need to be defined. Doing so may prove to be cumbersome in analog domain or rather the simulink domain. Hence state ...
... Implementing this control for the converter is very complicated. Definite controls for detecting the point where current crosses 0 and the point where current reaches the average value need to be defined. Doing so may prove to be cumbersome in analog domain or rather the simulink domain. Hence state ...
What is a capacitor?
... Rectification allows the production of a DC signal from an AC input. However, the DC is imperfect, as it still has a great level of variation in its voltage. Microchips require a perfect DC supply of around 5 V. A rectified signal is not good enough to continuously run a chip in a circuit, due to th ...
... Rectification allows the production of a DC signal from an AC input. However, the DC is imperfect, as it still has a great level of variation in its voltage. Microchips require a perfect DC supply of around 5 V. A rectified signal is not good enough to continuously run a chip in a circuit, due to th ...
LM567/LM567C Tone Decoder (Rev. E)
... Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Inf ...
... Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Inf ...
Voltage Sag Protection
... High-voltage transients Current inrush following voltage sag Overheating due to current harmonics Copyright © 2012 Rockwell Automation, Inc. All rights reserved. ...
... High-voltage transients Current inrush following voltage sag Overheating due to current harmonics Copyright © 2012 Rockwell Automation, Inc. All rights reserved. ...
DECS-200N Negative Forcing Digital Excitation Control System
... AVR Mode: Voltage regulation equals ±0.25% over the load range at rated power factor and constant generator frequency. Steady state stability equals ±0.1% at a constant load and generator frequency. Temperature drift equals ±0.5% for 0 to 50°C temperature change. Underfrequency (volts/hertz) charact ...
... AVR Mode: Voltage regulation equals ±0.25% over the load range at rated power factor and constant generator frequency. Steady state stability equals ±0.1% at a constant load and generator frequency. Temperature drift equals ±0.5% for 0 to 50°C temperature change. Underfrequency (volts/hertz) charact ...
Voltage profile - Mon`s group Sydney
... 4.2 Describe the reasons effects and limitation of voltage variation Voltage control All modern transmission systems with the exception of the constant current system, operate at a constant voltage . It is essential for the satisfactory operation of the consumer’s apparatus that the vltage be kept w ...
... 4.2 Describe the reasons effects and limitation of voltage variation Voltage control All modern transmission systems with the exception of the constant current system, operate at a constant voltage . It is essential for the satisfactory operation of the consumer’s apparatus that the vltage be kept w ...
PDN Planning and Capacitor Selection Part 1
... To meet the target (low) impedance at a particular frequency, a capacitance value is chosen so that when mounted on the PCB, it will resonate at the desired frequency, and have an impedance that is equal to its ESR. Then a sufficient number of those capacitors are placed in parallel so that the para ...
... To meet the target (low) impedance at a particular frequency, a capacitance value is chosen so that when mounted on the PCB, it will resonate at the desired frequency, and have an impedance that is equal to its ESR. Then a sufficient number of those capacitors are placed in parallel so that the para ...
UPS Sentinel XR PLUS 5-10kVA
... and alarms available on the custom LCD display • Very low noise level (<40dBA): for installation in any environment thanks to the PWM digitally controlled ventilation that is load dependent, and the use of an inverter with high switching frequency (>20kHz, value above the audible range) • Autorestar ...
... and alarms available on the custom LCD display • Very low noise level (<40dBA): for installation in any environment thanks to the PWM digitally controlled ventilation that is load dependent, and the use of an inverter with high switching frequency (>20kHz, value above the audible range) • Autorestar ...
MAX1762/MAX1791 High-Efficiency, 10-Pin µMAX, Step-Down Controllers for Notebooks General Description
... The standard application circuit (Figure 1) generates a low-voltage output for general-purpose use in notebook computers (I/O supply, fixed CPU, core supply, and DRAM supply). This DC-DC converter steps down battery voltage from 5V to 20V with high efficiency and accuracy to a fixed voltage of 1.8V/ ...
... The standard application circuit (Figure 1) generates a low-voltage output for general-purpose use in notebook computers (I/O supply, fixed CPU, core supply, and DRAM supply). This DC-DC converter steps down battery voltage from 5V to 20V with high efficiency and accuracy to a fixed voltage of 1.8V/ ...
RV generator set Quiet GasolineTM Series RV QG 2800
... 2.8kW generator set will start and run one 13500 Btu high efficiency air conditioner(15.5 Amps or less) plus 600 watt base load with an additional 300 watts of power available. 2.5kW generator set will start and run one 13500 Btu high efficiency air conditioner (15.5 Amps or less) plus a 600 watt ba ...
... 2.8kW generator set will start and run one 13500 Btu high efficiency air conditioner(15.5 Amps or less) plus 600 watt base load with an additional 300 watts of power available. 2.5kW generator set will start and run one 13500 Btu high efficiency air conditioner (15.5 Amps or less) plus a 600 watt ba ...
HMC732LC4B 数据资料DataSheet下载
... No Connection. These pins may be connected to RF/DC ground. Performance will not be affected. ...
... No Connection. These pins may be connected to RF/DC ground. Performance will not be affected. ...
Converter Modules
... voltage ranges). Electrical isolation between the input and the NPN OpenCollector Transistor output is achieved by means of a UL listed opto-isolator rated at 1500 V Peak continuous. ...
... voltage ranges). Electrical isolation between the input and the NPN OpenCollector Transistor output is achieved by means of a UL listed opto-isolator rated at 1500 V Peak continuous. ...
DDS-9850 Manual Experimenters version.
... However a lot of current is needed, to much in my opinion, to allow a simple 5v linear voltage regulator off of a 12 v supply. So a prototyping area is near the power input area. My board plus the LCD only draw about 25mA. But the DDS-9850 modules draw between 100 and 200 mA each. So with 2 modules ...
... However a lot of current is needed, to much in my opinion, to allow a simple 5v linear voltage regulator off of a 12 v supply. So a prototyping area is near the power input area. My board plus the LCD only draw about 25mA. But the DDS-9850 modules draw between 100 and 200 mA each. So with 2 modules ...
原文 DC GENENRATORS 1. INTRODUCTION For all practical
... the EG depends directly on the flux. To test this dependency on actual generators is not very practical, as it involves a magnetic flux measurement. The flux is produced by the ampere-turns of the field coils: in turn, the flux must depend on the amount of field current flowing since the number of t ...
... the EG depends directly on the flux. To test this dependency on actual generators is not very practical, as it involves a magnetic flux measurement. The flux is produced by the ampere-turns of the field coils: in turn, the flux must depend on the amount of field current flowing since the number of t ...
Specification of Basic Unit
... On-line change is available. Certain halt time appear if the on-line change is done by programming tool. ...
... On-line change is available. Certain halt time appear if the on-line change is done by programming tool. ...
Evaluation Board User Guide UG-227
... for the regulator. Ensure that the resistors have a power rating adequate to handle the power expected to be dissipated across them. An electronic load can also be used as an alternative. In addition, ensure that the voltage source can supply enough current for the expected load levels. ...
... for the regulator. Ensure that the resistors have a power rating adequate to handle the power expected to be dissipated across them. An electronic load can also be used as an alternative. In addition, ensure that the voltage source can supply enough current for the expected load levels. ...
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.