Lecture1
... To find phase angle we must express both sinusoids using the same trigonometric function; either sine or cosine with positive amplitude take care of minus sign with cos( ) cos( 180) ...
... To find phase angle we must express both sinusoids using the same trigonometric function; either sine or cosine with positive amplitude take care of minus sign with cos( ) cos( 180) ...
experimental characterization regarding two types of
... for each string of the luminaire, without an input power factor corrector (PFC). The LEDs in each string are associated in series, in order to ensure that all devices share the same current, while each buck converter will have the task of ensuring a constant average current for its string, due to it ...
... for each string of the luminaire, without an input power factor corrector (PFC). The LEDs in each string are associated in series, in order to ensure that all devices share the same current, while each buck converter will have the task of ensuring a constant average current for its string, due to it ...
DUP45V6P5 Features Mechanical Data
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
D5V0F1U2LP Features Mechanical Data
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
MAX3222/MAX3232/MAX3237/MAX3241
... requires a flying capacitor (C1, C2) and a reservoir capacitor (C3, C4) to generate the V+ and V- supplies. ...
... requires a flying capacitor (C1, C2) and a reservoir capacitor (C3, C4) to generate the V+ and V- supplies. ...
PowerFlex 755 - Rockwell Automation
... max., general purpose (inductive)/resistive. N.C. contact output ratings shall be 2 amp max., resistive only. Variable Frequency Motor Controllers 750-SR001C-EN-E ...
... max., general purpose (inductive)/resistive. N.C. contact output ratings shall be 2 amp max., resistive only. Variable Frequency Motor Controllers 750-SR001C-EN-E ...
MP3 weekly summary - LHC commissioning
... ● No indication of changes in Discharge Request Loop, thus trip must be internal to QPS (no other means of opening the switches from outside) ● No other QPS PM buffers (apart from global busbar for 2 events and nQPS buffers which are well after the initial trip and a result of switch OFF of circuits ...
... ● No indication of changes in Discharge Request Loop, thus trip must be internal to QPS (no other means of opening the switches from outside) ● No other QPS PM buffers (apart from global busbar for 2 events and nQPS buffers which are well after the initial trip and a result of switch OFF of circuits ...
DS3881 - Maxim Part Number Search
... Note 1: All voltages are referenced to ground unless otherwise noted. Currents into the IC are positive, out of the IC negative. Note 2: During fault conditions, the AC-coupled feedback values are allowed to be below the absolute max rating of the LCM1 or OVD1 pin for up to 1 second. Note 3: Voltage ...
... Note 1: All voltages are referenced to ground unless otherwise noted. Currents into the IC are positive, out of the IC negative. Note 2: During fault conditions, the AC-coupled feedback values are allowed to be below the absolute max rating of the LCM1 or OVD1 pin for up to 1 second. Note 3: Voltage ...
MAX5527/MAX5528/MAX5529 One-Time Programmable, Linear-Taper Digital Potentiometers General Description
... Pulse CS high for six cycles to change the wiper powerup position. The wiper position returns to this programmed position on power-up, but remains adjustable. Pulse CS high for seven cycles to lock the MAX5527/ MAX5528/MAX5529 to a specific wiper position with no further adjustments allowed. This ef ...
... Pulse CS high for six cycles to change the wiper powerup position. The wiper position returns to this programmed position on power-up, but remains adjustable. Pulse CS high for seven cycles to lock the MAX5527/ MAX5528/MAX5529 to a specific wiper position with no further adjustments allowed. This ef ...
MAX3222/MAX3232/MAX3237/MAX3241 3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232 ________________General Description
... requires a flying capacitor (C1, C2) and a reservoir capacitor (C3, C4) to generate the V+ and V- supplies. ...
... requires a flying capacitor (C1, C2) and a reservoir capacitor (C3, C4) to generate the V+ and V- supplies. ...
MAX9381 Lowest Power 3.0GHz ECL/PECL Differential Data and Clock D Flip-Flop General Description
... MC100EP52, with the added benefit of a wider supplyvoltage range from 2.25V to 5.5V and 25% lower supply current. Data enters the master part of the flip-flop when the clock is low and is transferred to the outputs upon a positive transition of the clock. Interchanging the clock inputs allows the pa ...
... MC100EP52, with the added benefit of a wider supplyvoltage range from 2.25V to 5.5V and 25% lower supply current. Data enters the master part of the flip-flop when the clock is low and is transferred to the outputs upon a positive transition of the clock. Interchanging the clock inputs allows the pa ...
On the selection and installation of surge protection devices in a TT
... electricity is fed into external devices such as CCTVs, security systems, garden lamps, gate controllers, etc. Lightning current may enter the building via these electrical paths and affect the equipment connected to the power system even if the main panel is installed with SPDs. c. Transients gener ...
... electricity is fed into external devices such as CCTVs, security systems, garden lamps, gate controllers, etc. Lightning current may enter the building via these electrical paths and affect the equipment connected to the power system even if the main panel is installed with SPDs. c. Transients gener ...
Fully-Differential Amplifiers (Rev. E)
... Figure 1. Integrated Fully-Differential Amplifier vs Standard Operational Amplifier Figure 2 shows a simplified version of an integrated, fully-differential amplifier (representative of the THS41xx or the THS45xx). Q1 and Q2 are the input differential pair. In a standard operational amplifier, outpu ...
... Figure 1. Integrated Fully-Differential Amplifier vs Standard Operational Amplifier Figure 2 shows a simplified version of an integrated, fully-differential amplifier (representative of the THS41xx or the THS45xx). Q1 and Q2 are the input differential pair. In a standard operational amplifier, outpu ...
MAX11162 16-Bit, 500ksps, +5V Unipolar Input, SAR ADC, in Tiny 10-Pin µMAX
... Serial Data Input and Mode Select Input. Daisy-chain mode is selected if SDI is low during the CNVST rising edge. In this mode, SDI is used as a data input to daisy-chain the conversion results of two or more ADCs onto a single SDO line. CS mode is selected if SDI is high during the CNVST rising edg ...
... Serial Data Input and Mode Select Input. Daisy-chain mode is selected if SDI is low during the CNVST rising edge. In this mode, SDI is used as a data input to daisy-chain the conversion results of two or more ADCs onto a single SDO line. CS mode is selected if SDI is high during the CNVST rising edg ...
Navy Electricity and Electronics Training Series
... Reservists on Inactive Duty, BUPERSINST 1001.39, for more information about retirement points.) ...
... Reservists on Inactive Duty, BUPERSINST 1001.39, for more information about retirement points.) ...
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.