 
									
								
									Aquarium Lighting and Resource Monitor
									
... 5V output is input into a digital pin  Water detected when the circuit is completed by conducting signal through the water  Sends interrupt to microcontroller to alert the owner ...
                        	... 5V output is input into a digital pin  Water detected when the circuit is completed by conducting signal through the water  Sends interrupt to microcontroller to alert the owner ...
									Flexible, efficient voltage translation for open-drain and push-pull apps NXP bidirectional voltage
									
... When EN is HIGH, the translator switch is on and the An I/O is connected to the Bn I/O. This allows bidirectional data flow between ports. When EN is LOW, the translator switch is off and a high-impedance state exists between ports. The EN input circuit is designed to be supplied by Vref(B). To ens ...
                        	... When EN is HIGH, the translator switch is on and the An I/O is connected to the Bn I/O. This allows bidirectional data flow between ports. When EN is LOW, the translator switch is off and a high-impedance state exists between ports. The EN input circuit is designed to be supplied by Vref(B). To ens ...
									DN553 - Electrolytic Capacitor-Based Data
									
... stays within the specified range, allowing VSYS to ride through brownout and overvoltage conditions such as automotive cold crank and load dump. When the input voltage is interrupted or moves out of this range, the LTC3643 based backup power solution maintains the VSYS system voltage to allow for s ...
                        	... stays within the specified range, allowing VSYS to ride through brownout and overvoltage conditions such as automotive cold crank and load dump. When the input voltage is interrupted or moves out of this range, the LTC3643 based backup power solution maintains the VSYS system voltage to allow for s ...
									Systematic Design of Space-Time Trellis Codes for Wireless
									
... Large communication area. Any two places within the coverage of ...
                        	... Large communication area. Any two places within the coverage of ...
									AN-1002 Reverse Current Blocking with Silego GreenFET Load
									
... voltage (source) goes more than a diode drop above the drain. For example, with embedded battery applications this can result in a path that can quickly drain the battery. A reverse blocking architecture essentially places two load switches in a back-to-back configuration that makes it impossible fo ...
                        	... voltage (source) goes more than a diode drop above the drain. For example, with embedded battery applications this can result in a path that can quickly drain the battery. A reverse blocking architecture essentially places two load switches in a back-to-back configuration that makes it impossible fo ...
									AD501_series_ds:data sheet letter template.qxd.qxd
									
... Designed to meet EN61000-4-2, -4, -5, level 4; EN61000-4-3, -6, 10v/m; EN61000-4-8, -11; EN61000-3-3 and EN61000-3-2 Class A Operating; non-condensing 10% to 90% RH ...
                        	... Designed to meet EN61000-4-2, -4, -5, level 4; EN61000-4-3, -6, 10v/m; EN61000-4-8, -11; EN61000-3-3 and EN61000-3-2 Class A Operating; non-condensing 10% to 90% RH ...
									IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)
									
... variable capacitive load. This amplitude control is done through the leading the STATCOM voltage, it is possible to charge or discharge the dc capacitor; as a consequence, change the value of the dc voltage and the STATCOM’s operational characteristics and the compensator behaves as an inductive loa ...
                        	... variable capacitive load. This amplitude control is done through the leading the STATCOM voltage, it is possible to charge or discharge the dc capacitor; as a consequence, change the value of the dc voltage and the STATCOM’s operational characteristics and the compensator behaves as an inductive loa ...
									BQ4201451457
									
... This paper deals with a novel type soft switching utility frequency AC- high frequency AC converter using asymmetrical PWM bidirectional active switches which can be defined as high frequency resonant matrix converter.This power frequency changer can directly convert utility frequency AC power to hi ...
                        	... This paper deals with a novel type soft switching utility frequency AC- high frequency AC converter using asymmetrical PWM bidirectional active switches which can be defined as high frequency resonant matrix converter.This power frequency changer can directly convert utility frequency AC power to hi ...
									ILD4180 1.8A DC/DC Step-Down Converter  LED Driver for Industrial Applications
									
... 1) Not subject to production test, specified by design. 2) Specified RthJC value is simulated at natural convection on a cold plate setup (all pins and the exposed pad are fixed to ambient temperature). Ta=25°C, power-switch is dissipating 1W. 3) Specified RthJA value is according to Jedec JESD51-2, ...
                        	... 1) Not subject to production test, specified by design. 2) Specified RthJC value is simulated at natural convection on a cold plate setup (all pins and the exposed pad are fixed to ambient temperature). Ta=25°C, power-switch is dissipating 1W. 3) Specified RthJA value is according to Jedec JESD51-2, ...
									installation instructions
									
... USA, Europe and other countries) must be ensured. Before operation is started the following conditions must be ensured: Connection to power supply in compliance with national regulations (e.g. VDE0100 and EN50178). By use of stranded wires, all strands must be fastened in the terminal blocks. (P ...
                        	... USA, Europe and other countries) must be ensured. Before operation is started the following conditions must be ensured: Connection to power supply in compliance with national regulations (e.g. VDE0100 and EN50178). By use of stranded wires, all strands must be fastened in the terminal blocks. (P ...
									ICL7106/7107
									
... The ICL7106 and ICL7107 are high performance,low power 3 1 / 2 digit A/D converters. Included are seven segment decoders, display drivers, a reference, and a clock. The ICL7106 is designed to interface with a liquid crystal display (LCD) and includes a multiplexed backplane drive, the ICL7107 will d ...
                        	... The ICL7106 and ICL7107 are high performance,low power 3 1 / 2 digit A/D converters. Included are seven segment decoders, display drivers, a reference, and a clock. The ICL7106 is designed to interface with a liquid crystal display (LCD) and includes a multiplexed backplane drive, the ICL7107 will d ...
									VR21 regulator troubleshooting
									
... U3, frequency to voltage converter, is used for volts/hertz control, an option selected by switch S3. It won’t be discussed here. The filter/choke works with power transistors to provide a “bank” of high DC voltage across two large, yellow capacitors to provide power as required by the exciter. Whe ...
                        	... U3, frequency to voltage converter, is used for volts/hertz control, an option selected by switch S3. It won’t be discussed here. The filter/choke works with power transistors to provide a “bank” of high DC voltage across two large, yellow capacitors to provide power as required by the exciter. Whe ...
									Square Wave Sources in PSpice
									
... by the Start Value and End Value that you enter in the DC Sweep pop-up window that is launched when you select DC Sweep in the Analysis Setup pop-up window. However, you must enter some value for DC in the Part Name pop-up window to have the DC Sweep option enabled. Similarly, you must enter some va ...
                        	... by the Start Value and End Value that you enter in the DC Sweep pop-up window that is launched when you select DC Sweep in the Analysis Setup pop-up window. However, you must enter some value for DC in the Part Name pop-up window to have the DC Sweep option enabled. Similarly, you must enter some va ...
									CIRCUIT FUNCTION AND BENEFITS
									
... by Analog Devices for their use, nor for any infringements of patents or other rights of third parties that may result from their use. Analog Devices reserves the right to change any "Circuits from the Lab" at any time without notice, but is under no obligation to do so. Trademarks and registered tr ...
                        	... by Analog Devices for their use, nor for any infringements of patents or other rights of third parties that may result from their use. Analog Devices reserves the right to change any "Circuits from the Lab" at any time without notice, but is under no obligation to do so. Trademarks and registered tr ...
									230/400 V 3-phase AC, secondary voltage: 24 V DC
									
... Power Supply Unit 07 NG 36 R1 primary voltage: 230/400 V 3-phase AC, secondary voltage: 24 V DC, 20 A ...
                        	... Power Supply Unit 07 NG 36 R1 primary voltage: 230/400 V 3-phase AC, secondary voltage: 24 V DC, 20 A ...
									IKI PTR-II
									
... acquisition system for neutron coincidence counting. It consists of an external hardware unit and a user-friendly windows software package. Measured data are transferred to the PC and written to hard disk. The recorded pulse train, can be evaluated with different predelay and gate length, what is no ...
                        	... acquisition system for neutron coincidence counting. It consists of an external hardware unit and a user-friendly windows software package. Measured data are transferred to the PC and written to hard disk. The recorded pulse train, can be evaluated with different predelay and gate length, what is no ...
									Clock Networks and PLLs in Stratix III Devices
									
... Maximum of 88 low skew and low delay RCLKs drive logic. 116 higher skew PCLKs can be used as general purpose routing to drive signals into and out of the device. ...
                        	... Maximum of 88 low skew and low delay RCLKs drive logic. 116 higher skew PCLKs can be used as general purpose routing to drive signals into and out of the device. ...
									TPS62674 数据资料 dataSheet 下载
									
... With a wide input voltage range of 2.3V to 4.8V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.0V to 2.3V. The TPS6267x operates at a regulated 6-MHz switching frequency and enters the power-save ...
                        	... With a wide input voltage range of 2.3V to 4.8V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.0V to 2.3V. The TPS6267x operates at a regulated 6-MHz switching frequency and enters the power-save ...
									Speaker Power Requirements
									
... monitor system rated at 300 watts can be safely driven by an amplifier capable of 600 watts output. Discussion: Careful monitoring is the key here. High quality music production today demands high peak factors in the recorded signal. Such peak signals are normally of such short duration that they ha ...
                        	... monitor system rated at 300 watts can be safely driven by an amplifier capable of 600 watts output. Discussion: Careful monitoring is the key here. High quality music production today demands high peak factors in the recorded signal. Such peak signals are normally of such short duration that they ha ...
									Lab 6 - La Salle University
									
... oscillating sine wave) by varying its amplitude (peak). The amplitude variations will have a much lower frequency. On the receiver end, one must be able to separate the carrier from the signal. A very simple version of an amplitude-modulated sine wave is obtained by using the concept of beats. If tw ...
                        	... oscillating sine wave) by varying its amplitude (peak). The amplitude variations will have a much lower frequency. On the receiver end, one must be able to separate the carrier from the signal. A very simple version of an amplitude-modulated sine wave is obtained by using the concept of beats. If tw ...
									CHAPTER THREE WIRELESS BI-DIRECTIONAL DATA COMMUNICATION 3.1 INTRODUCTION
									
... with very low data rates this technique achieves significant power savings by turning off the RF oscillator in the interval between the pulses. Power cycling does not work for modulation rates over a few kilohertz because it is very difficult to stabilize a RF oscillator within a fraction of a milli ...
                        	... with very low data rates this technique achieves significant power savings by turning off the RF oscillator in the interval between the pulses. Power cycling does not work for modulation rates over a few kilohertz because it is very difficult to stabilize a RF oscillator within a fraction of a milli ...
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.
 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									