Reducing Switching Capacitance Using Buffers
... have a lower charging resistance and an increased drive capacity. This lowers the RC time constant for the charging of the load capacitance allowing the circuit to switch faster and decreasing the delay. The buffers do not directly decrease power but the decreased delay they cause can be used along ...
... have a lower charging resistance and an increased drive capacity. This lowers the RC time constant for the charging of the load capacitance allowing the circuit to switch faster and decreasing the delay. The buffers do not directly decrease power but the decreased delay they cause can be used along ...
IPS Flyback application note
... (Domestic US) or 85 to 265 volts AC (International.) The line frequency can be 50, 60 or 400 Hertz nominal. Most designs will also operate from high-voltage DC with any polarity, like 140 volts or 120 to 400 volts. The emphasis is on low-power, low cost SMPS with one isolated low-voltage output. How ...
... (Domestic US) or 85 to 265 volts AC (International.) The line frequency can be 50, 60 or 400 Hertz nominal. Most designs will also operate from high-voltage DC with any polarity, like 140 volts or 120 to 400 volts. The emphasis is on low-power, low cost SMPS with one isolated low-voltage output. How ...
SKY65120-21 数据资料DataSheet下载
... parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. ...
... parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. ...
Reading the Brain Science International QEEG Report
... Z Scores: The difference between the mean score of a population and the patient’s individual score divided by the standard deviation of the population. The Z value indicates how “deviant ...
... Z Scores: The difference between the mean score of a population and the patient’s individual score divided by the standard deviation of the population. The Z value indicates how “deviant ...
Use of 690 V for LV industrial distribution network to save
... possibility to increase transformer rated power. Its maximum value is, however, limited by fault current duty on LV switchboards and their switching devices and motor starters. Since the figure of 50 kA shall not be exceeded, motor contribution included, the ratings of LV transformers shall not exce ...
... possibility to increase transformer rated power. Its maximum value is, however, limited by fault current duty on LV switchboards and their switching devices and motor starters. Since the figure of 50 kA shall not be exceeded, motor contribution included, the ratings of LV transformers shall not exce ...
Unit 6 PowerPoint Slides
... In many cases, we can think of an electrical system as being composed of a source of power and a load connected to that source. Examples of sources: amplifier, generator, power supply. Examples of loads: loudspeaker, electric motor, antenna. ...
... In many cases, we can think of an electrical system as being composed of a source of power and a load connected to that source. Examples of sources: amplifier, generator, power supply. Examples of loads: loudspeaker, electric motor, antenna. ...
KSC5305D NPN Silicon Transistor KSC5305D — NPN Silicon T Features
... Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com, under Sales Support. Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor ...
... Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com, under Sales Support. Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor ...
THESOLIDSTATEAMPLIFIER
... We see IGBT response for the first time in fig 4.6a. The 6±0.5V peak observed at the IGBT input in fig 4.5b therefore indicates a switch-on voltage, and the uncertainty is estimated by comparison with fig 4.6a and b and reflects the natural variability of the device. It is interesting to note (fig 4 ...
... We see IGBT response for the first time in fig 4.6a. The 6±0.5V peak observed at the IGBT input in fig 4.5b therefore indicates a switch-on voltage, and the uncertainty is estimated by comparison with fig 4.6a and b and reflects the natural variability of the device. It is interesting to note (fig 4 ...
ADS7800 数据资料 dataSheet 下载
... words. Figure 1 shows the operation of a simplified 3-bit charge redistribution A/D. Precision laser-trimmed scaling resistors at the input divide standard input ranges (±10V or ±5V for the ADS7800) into levels compatible with the CMOS characteristics of the internal capacitor array. While in the sa ...
... words. Figure 1 shows the operation of a simplified 3-bit charge redistribution A/D. Precision laser-trimmed scaling resistors at the input divide standard input ranges (±10V or ±5V for the ADS7800) into levels compatible with the CMOS characteristics of the internal capacitor array. While in the sa ...
Minicon™ Reference Manual
... in the VCC position, connection of a power source with a voltage greater than 5.5V will damage the board. Each 6-pin Pmod connector provides four I/O signals, a power connection and a ground connection. A 3-pin jumper block associated with each connector is used to connect the power pin to either th ...
... in the VCC position, connection of a power source with a voltage greater than 5.5V will damage the board. Each 6-pin Pmod connector provides four I/O signals, a power connection and a ground connection. A 3-pin jumper block associated with each connector is used to connect the power pin to either th ...
BD6164GUT
... Changing MOD[5:4] from 10 to 01, will indicate both a mode change (Assistant to Flash) and a LED deactivation. Please note that in this particular case, the mode change will trigger a flash sequence before it will deactivate the LED. To activate a Flash or Assistant, we recommend 00 to 11 (for Flash ...
... Changing MOD[5:4] from 10 to 01, will indicate both a mode change (Assistant to Flash) and a LED deactivation. Please note that in this particular case, the mode change will trigger a flash sequence before it will deactivate the LED. To activate a Flash or Assistant, we recommend 00 to 11 (for Flash ...
Power Converter - CERN Accelerator School
... A stupid installation taking a non-sinusoidal current at poor power factor (Power distribution engineer) A standard piece of equipment available from industry off-the-shelf (a higher management person, not in in this room !) ...
... A stupid installation taking a non-sinusoidal current at poor power factor (Power distribution engineer) A standard piece of equipment available from industry off-the-shelf (a higher management person, not in in this room !) ...
MAX6338 Quad Voltage Monitor in µMAX Package General Description Features
... internal undervoltage lockout circuit forces all four digital outputs low when VCC drops below the minimum operating voltage. The four digital outputs all have weak internal pull-ups to VCC, allowing wire-ORed connection. Each input threshold voltage has an independent output. The MAX6338 is availab ...
... internal undervoltage lockout circuit forces all four digital outputs low when VCC drops below the minimum operating voltage. The four digital outputs all have weak internal pull-ups to VCC, allowing wire-ORed connection. Each input threshold voltage has an independent output. The MAX6338 is availab ...
S - Michigan State University
... inverters has long been a thorny problem, which requires a huge dc link capacitor bank to absorb this 2ω low frequency current ripple in order to maintain the dc link voltage ripple under a tolerable value. This dissertation presents a simple 3rd harmonic injection method for the cascaded H-bridge m ...
... inverters has long been a thorny problem, which requires a huge dc link capacitor bank to absorb this 2ω low frequency current ripple in order to maintain the dc link voltage ripple under a tolerable value. This dissertation presents a simple 3rd harmonic injection method for the cascaded H-bridge m ...
MAX9164 3.3V Single LVDS Driver/Receiver General Description Features
... The MAX9164 high-speed LVDS driver/receiver is designed specifically for low-power point-to-point applications. The MAX9164 operates from a single 3.3V power supply, and is pin compatible with the DS90LV019. The device features an independent differential driver and receiver. The MAX9164 driver outp ...
... The MAX9164 high-speed LVDS driver/receiver is designed specifically for low-power point-to-point applications. The MAX9164 operates from a single 3.3V power supply, and is pin compatible with the DS90LV019. The device features an independent differential driver and receiver. The MAX9164 driver outp ...
Buck Converter: Negative Spike at Phase Node
... Lstray is the total value of the critical loop inductance consisting of L1 and L2. L2 is the part of Lstray that is located in the synchronous rectification path, i.e. between GND and phase node. L1 is the part of the L stray that is not part of L2. Another assumption is that the HS-MOSFET is switch ...
... Lstray is the total value of the critical loop inductance consisting of L1 and L2. L2 is the part of Lstray that is located in the synchronous rectification path, i.e. between GND and phase node. L1 is the part of the L stray that is not part of L2. Another assumption is that the HS-MOSFET is switch ...
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.