Use of the Fluke 105B Scopemeter on the Farm
... the display would show 12 volts dc. On the other hand, under AC coupling the display would show zero voltage. When measuring for the fencer/trainer either AC or DC coupling could be used. However, AC coupling will filter out any DC voltage that may be present such as galvanic voltages. Galvanic volt ...
... the display would show 12 volts dc. On the other hand, under AC coupling the display would show zero voltage. When measuring for the fencer/trainer either AC or DC coupling could be used. However, AC coupling will filter out any DC voltage that may be present such as galvanic voltages. Galvanic volt ...
- Treotham
... For positioning, there are three different variants of output signal available: Shutdown positioning (for one to three speeds), PID and ramp controlled analogue output. Depending on the variant concerned, the P40 can be supplied with either 24 VDC or 24 VAC. It can communicate with a superordinate s ...
... For positioning, there are three different variants of output signal available: Shutdown positioning (for one to three speeds), PID and ramp controlled analogue output. Depending on the variant concerned, the P40 can be supplied with either 24 VDC or 24 VAC. It can communicate with a superordinate s ...
Peak Power Tracking Control for Photovoltaic Array
... controller The panel power controller serves the following functions: (1) Regulating the I-V characteristic to achieve peak power tracking (2) Boosting the voltage (DC bus voltage must be at a certain level for the proper grid-side inverter operation) (3) Electrical isolation (for safety). ...
... controller The panel power controller serves the following functions: (1) Regulating the I-V characteristic to achieve peak power tracking (2) Boosting the voltage (DC bus voltage must be at a certain level for the proper grid-side inverter operation) (3) Electrical isolation (for safety). ...
Summary Notes for Further Electronics
... fins to conduct heat from the chip and they may involve dc motors with fans to convect the heat away. Semiconductor circuits, like most things only operate within a limited band of temperatures and so for the correct operation they need to be cooled they generate too much heat. Heat generation can a ...
... fins to conduct heat from the chip and they may involve dc motors with fans to convect the heat away. Semiconductor circuits, like most things only operate within a limited band of temperatures and so for the correct operation they need to be cooled they generate too much heat. Heat generation can a ...
IS2515571559
... Pipeline ADC is a popular architecture for data conversion schemes which require a compromise between speed and accuracy. Although the pipeline architecture is inherently not as fast as a flash scheme, its serial nature results in a linear scaling of power and area with resolution apposed to the exp ...
... Pipeline ADC is a popular architecture for data conversion schemes which require a compromise between speed and accuracy. Although the pipeline architecture is inherently not as fast as a flash scheme, its serial nature results in a linear scaling of power and area with resolution apposed to the exp ...
Sub-1.0 pF Quad ESD Array
... protected line exceeds the reference voltage (Vf or VCC + Vf). The diodes will force the transient current to bypass the sensitive circuit. Data lines are connected at pins 1, 3, 4 and 6. The negative reference is connected at pin 2. This pin must be connected directly to ground by using a ground pl ...
... protected line exceeds the reference voltage (Vf or VCC + Vf). The diodes will force the transient current to bypass the sensitive circuit. Data lines are connected at pins 1, 3, 4 and 6. The negative reference is connected at pin 2. This pin must be connected directly to ground by using a ground pl ...
LM5072 - Texas Instruments
... programmed to be dominant over PoE power. 4. DC current limit is programmable and adjustable to support PoE applications requiring input currents up to 700 mA. The LM5072 includes an easy to use PWM controller based on the peak current mode control technique. Current mode control provides inherent a ...
... programmed to be dominant over PoE power. 4. DC current limit is programmable and adjustable to support PoE applications requiring input currents up to 700 mA. The LM5072 includes an easy to use PWM controller based on the peak current mode control technique. Current mode control provides inherent a ...
Evaluates: MAX8556/MAX8557 MAX8556 Evaluation Kit General Description Features
... steps down a 1.425V to 3.6V input voltage range to a 1.2V output capable of sourcing up to 4A (limited by power dissipation). The MAX8556 features a POK output that goes high impedance once the output is within ±10% of its regulation value. The device utilizes an internal p-channel MOSFET for reduce ...
... steps down a 1.425V to 3.6V input voltage range to a 1.2V output capable of sourcing up to 4A (limited by power dissipation). The MAX8556 features a POK output that goes high impedance once the output is within ±10% of its regulation value. The device utilizes an internal p-channel MOSFET for reduce ...
Section E. Power Supply Unit
... motherboard also carnes the AC line fuses. two AC line suppression capadtoni. and a DC supply bleed resistor. AddiUonal circuitry Sn the power supply dumps power generated by the motor during deceleration. The max1mum power dump ratlng is 68 watts continuous. In hJgh duty cycle applications. this ra ...
... motherboard also carnes the AC line fuses. two AC line suppression capadtoni. and a DC supply bleed resistor. AddiUonal circuitry Sn the power supply dumps power generated by the motor during deceleration. The max1mum power dump ratlng is 68 watts continuous. In hJgh duty cycle applications. this ra ...
Lab #3(Word Format)
... A photocell (photoresistor) is a resistor that is sensitive to the amount of light it receives. The dark resistance may be several hundred k, while the light resistance is a few k or lower. This sensitivity to light makes a photocell ideal for many practical applications, including a photosensitiv ...
... A photocell (photoresistor) is a resistor that is sensitive to the amount of light it receives. The dark resistance may be several hundred k, while the light resistance is a few k or lower. This sensitivity to light makes a photocell ideal for many practical applications, including a photosensitiv ...
DESCRIPTION OF SUPER SWITCH OPERATION The Super switch
... Operating Altitude – up to 5000 feet (1500 meters) above sea level without derating. Storage / Transport Altitude – up to 40,000 feet (12,000 meters) above sea level. Audible Noise – less than 45 dBA at 5 feet (1.5 meters). ...
... Operating Altitude – up to 5000 feet (1500 meters) above sea level without derating. Storage / Transport Altitude – up to 40,000 feet (12,000 meters) above sea level. Audible Noise – less than 45 dBA at 5 feet (1.5 meters). ...
A low-inductance, long-life, triggered spark gap
... and long life (Santa et U / 1984). However, due to their slow switching speed, thyratron-based switches have only limited applications. Many workers (Mechterscheimer er af 1986, Suhash and Sathianandan 1984) have shown that switching speeds of a few nanoseconds together with a longer life can he ach ...
... and long life (Santa et U / 1984). However, due to their slow switching speed, thyratron-based switches have only limited applications. Many workers (Mechterscheimer er af 1986, Suhash and Sathianandan 1984) have shown that switching speeds of a few nanoseconds together with a longer life can he ach ...
EA25771777
... and avoids the transient impulse from power net, the voltage of semiconductor device below output voltage, the zero potential of Q’s source side which makes it easy to drive Q and its simple structure. Therefore, satisfied teaching of advanced power electronics should be introduced by unity power fa ...
... and avoids the transient impulse from power net, the voltage of semiconductor device below output voltage, the zero potential of Q’s source side which makes it easy to drive Q and its simple structure. Therefore, satisfied teaching of advanced power electronics should be introduced by unity power fa ...
AP3983E - Diodes Incorporated
... MOSFET, regulates the output voltage and current in the primary side by piece-wise Pulse Frequency Modulation (p-PFM) in discontinuous conduction mode (DCM). The system operating frequency reduces linearly from heavy load to light load in each interval of the p-PFM, and enters constant current mode ...
... MOSFET, regulates the output voltage and current in the primary side by piece-wise Pulse Frequency Modulation (p-PFM) in discontinuous conduction mode (DCM). The system operating frequency reduces linearly from heavy load to light load in each interval of the p-PFM, and enters constant current mode ...
MAX16936 36V, 220kHz to 2.2MHz Step-Down Converter with 28µA Quiescent Current General Description
... The MAX16936 is a 2.5A current-mode step-down converter with integrated high-side and low-side MOSFETs designed to operate with an external Schottky diode for better efficiency. The low-side MOSFET enables fixed-frequency forced-PWM (FPWM) operation under light-load applications. The device operates ...
... The MAX16936 is a 2.5A current-mode step-down converter with integrated high-side and low-side MOSFETs designed to operate with an external Schottky diode for better efficiency. The low-side MOSFET enables fixed-frequency forced-PWM (FPWM) operation under light-load applications. The device operates ...
This is a very small, easy to use ultrasonic sensor that has three
... some sort of tube. This tube was glued on top of the motor gear so that the sensor turned with the motor. A sweep of -135 degrees to +135 degrees was used in our design because we intended to have 7 motors each 45 degrees away from each other. The motor was also mounted in the hardhat by gluing it i ...
... some sort of tube. This tube was glued on top of the motor gear so that the sensor turned with the motor. A sweep of -135 degrees to +135 degrees was used in our design because we intended to have 7 motors each 45 degrees away from each other. The motor was also mounted in the hardhat by gluing it i ...
IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)
... In most cases, the voltage of the dc side of the converter is assumed to be constant and the ac network is assumed to be balanced. However, fluctuations at various frequencies often occur on the dc side which usually appears as harmonics of the ac-side operating frequency. The most significant harmo ...
... In most cases, the voltage of the dc side of the converter is assumed to be constant and the ac network is assumed to be balanced. However, fluctuations at various frequencies often occur on the dc side which usually appears as harmonics of the ac-side operating frequency. The most significant harmo ...
ATE Quick Start Guide
... isolated from the a-c source and from any direct connection to chassis or ground. The maximum output voltage that can be supported between either output terminals and ground or chassis is 500V (d-c or peak), plus the maximum output voltage of the power supply. Either side of the output may be ground ...
... isolated from the a-c source and from any direct connection to chassis or ground. The maximum output voltage that can be supported between either output terminals and ground or chassis is 500V (d-c or peak), plus the maximum output voltage of the power supply. Either side of the output may be ground ...
LM337 - 1.5 A, Adjustable Output Negative Voltage Regulator
... The LM337 is capable of providing extremely good load regulation, but a few precautions are needed to obtain maximum performance. For best performance, the programming resistor (R1) should be connected as close to the regulator as possible to minimize line drops which effectively appear in series wi ...
... The LM337 is capable of providing extremely good load regulation, but a few precautions are needed to obtain maximum performance. For best performance, the programming resistor (R1) should be connected as close to the regulator as possible to minimize line drops which effectively appear in series wi ...
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.