Power Meter PM500 Functions and characteristics
... The Power Logic PM500 Power Meter provides all measurement capabilities required to monitor an electrical installation in a single 96 x 96 mm unit. It offers a number of advantages over analogue meters. Ideal for metering and monitoring applications, it can be integrated in a PowerLogic system to in ...
... The Power Logic PM500 Power Meter provides all measurement capabilities required to monitor an electrical installation in a single 96 x 96 mm unit. It offers a number of advantages over analogue meters. Ideal for metering and monitoring applications, it can be integrated in a PowerLogic system to in ...
User`s Guide Model 382260 80W 3-in
... returned to Extech. The sender is responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper maintenanc ...
... returned to Extech. The sender is responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper maintenanc ...
Equation 1
... Three conditions will be considered: varying R but not X, varying X but not R, and varying R and X independently. ...
... Three conditions will be considered: varying R but not X, varying X but not R, and varying R and X independently. ...
signal level - California State University, Long Beach
... • zero voltage correspond to a logical zero For example, +5 volts can be used for a logical one and 0 volts for a logical zero If only two levels of voltage are used, each level corresponds to one data bit (0 or 1) Some physical transmission mechanisms can support more than two signal levels, When m ...
... • zero voltage correspond to a logical zero For example, +5 volts can be used for a logical one and 0 volts for a logical zero If only two levels of voltage are used, each level corresponds to one data bit (0 or 1) Some physical transmission mechanisms can support more than two signal levels, When m ...
FAN4800AU/CU PFC/ PWM Controller Combination FAN48 00AU/CU —
... frequencies for PFC and PWM stages are 1/4 and 1/2 of oscillator frequency, respectively). ...
... frequencies for PFC and PWM stages are 1/4 and 1/2 of oscillator frequency, respectively). ...
Simple Current Limit Circuit using Transistors
... Make sure you're transistor can dissipate the needed power in the worst case situation. If I short out the load with a wire (0Ω) almost the entire supply voltage (11.3V) will be dropped across the collector emitter junction of Q1 at 50mA. P = VI = 11.3V * 0.05A = 0.565W (quite a bit for the 2N3904). ...
... Make sure you're transistor can dissipate the needed power in the worst case situation. If I short out the load with a wire (0Ω) almost the entire supply voltage (11.3V) will be dropped across the collector emitter junction of Q1 at 50mA. P = VI = 11.3V * 0.05A = 0.565W (quite a bit for the 2N3904). ...
enhancement of power quality using d-statcom based on
... with D-STATCOM. To mitigate the voltage sag in load side, D-STATCOM has to inject the compensating reactive i.e., leading reactive power (Capacitive) in the system as shown in figure 4.1 and 4.2. And Fig.4.1. Compensating current and Reactive power of D-STATCOM with PI Control ...
... with D-STATCOM. To mitigate the voltage sag in load side, D-STATCOM has to inject the compensating reactive i.e., leading reactive power (Capacitive) in the system as shown in figure 4.1 and 4.2. And Fig.4.1. Compensating current and Reactive power of D-STATCOM with PI Control ...
process displays, pulse control units, signal
... isolation from the signal input and 14 bit resolution. Input signal linearization function available. The connection is made via screw terminals. The min. / max. values can be stored. ■ Housing with DIN design 24 x 48 mm Model number ...
... isolation from the signal input and 14 bit resolution. Input signal linearization function available. The connection is made via screw terminals. The min. / max. values can be stored. ■ Housing with DIN design 24 x 48 mm Model number ...
DSTATCOM supported induction generator for improving power
... DSTATCOM is regulated by the SMC which suppresses undershoots and overshoots in the DClink voltage. A reduced rating of DC-link capacitor may be used owing to this feature. The terminal voltage of the SEIG is also regulated at a value which lies away from the saturation point of the SEIG (even below ...
... DSTATCOM is regulated by the SMC which suppresses undershoots and overshoots in the DClink voltage. A reduced rating of DC-link capacitor may be used owing to this feature. The terminal voltage of the SEIG is also regulated at a value which lies away from the saturation point of the SEIG (even below ...
Interpower 1251PC Specifications
... Test your export product… The Interpower International Power Source provides a low-cost, convenient source of 50Hz power which is important for testing many products that are exported. Output power is delivered through either a standard NEMA 15A/115VAC socket or the Continental European Schuko socke ...
... Test your export product… The Interpower International Power Source provides a low-cost, convenient source of 50Hz power which is important for testing many products that are exported. Output power is delivered through either a standard NEMA 15A/115VAC socket or the Continental European Schuko socke ...
Atmel LED Drivers MSL4163/MSL4164
... string intensity control for up to 16 interconnected devices to allow active area dimming. The devices include an advanced PWM engine that easily synchronizes to a video signal, and per-string phase adjustment to reduce unwanted LCD artifacts such as motion blur. Additionally, an on-chip EEPROM allo ...
... string intensity control for up to 16 interconnected devices to allow active area dimming. The devices include an advanced PWM engine that easily synchronizes to a video signal, and per-string phase adjustment to reduce unwanted LCD artifacts such as motion blur. Additionally, an on-chip EEPROM allo ...
Application of VFD in Condenser Pumps in Thermal Power Plant 1
... terminals, 2 AC output terminals as well as 1 optic fiber plug, will the power cells be drawn out. When one power module fails, the user may replace with a reserved power module through simple operation in 5 minutes to ensure the reliable system operation. All power modules have two indicator lights ...
... terminals, 2 AC output terminals as well as 1 optic fiber plug, will the power cells be drawn out. When one power module fails, the user may replace with a reserved power module through simple operation in 5 minutes to ensure the reliable system operation. All power modules have two indicator lights ...
1500 Watt MOSORB® Transient Voltage Suppressor, 6.0 V Unidir
... current to full current) and lead inductance. This inductive effect produces an overshoot in the voltage across the equipment or component being protected as shown in Figure 9. Minimizing this overshoot is very important in the application, since the main purpose for adding a transient suppressor is ...
... current to full current) and lead inductance. This inductive effect produces an overshoot in the voltage across the equipment or component being protected as shown in Figure 9. Minimizing this overshoot is very important in the application, since the main purpose for adding a transient suppressor is ...
Generic Hardware Info
... “Power Supply” Can also specify a maximum allowed current This does not change the voltage. The current can still be less than this limit. ...
... “Power Supply” Can also specify a maximum allowed current This does not change the voltage. The current can still be less than this limit. ...
A “short list” of embedded systems
... transmits serially – Receives serial data and converts to parallel ...
... transmits serially – Receives serial data and converts to parallel ...
Analog-to-digital converter
... that ramps up, then quickly falls to zero. When the ramp starts, a timer starts counting. When the ramp voltage matches the input, a comparator fires, and the timer's value is recorded. Timed ramp converters require the least number of transistors. - The ramp time is sensitive to temperature?? T ...
... that ramps up, then quickly falls to zero. When the ramp starts, a timer starts counting. When the ramp voltage matches the input, a comparator fires, and the timer's value is recorded. Timed ramp converters require the least number of transistors. - The ramp time is sensitive to temperature?? T ...
Frequency Foldback Current Mode PWM
... CLKSYNC: An edge triggered active low TTL signal to this pin synchronizes the oscillator to an external clock. When VOUT decreases below 3.0 V, the frequency foldback circuit is activated and the controller becomes unsynchronized. When VOUT exceeds 3.0 V, the controller resynchronizes to the externa ...
... CLKSYNC: An edge triggered active low TTL signal to this pin synchronizes the oscillator to an external clock. When VOUT decreases below 3.0 V, the frequency foldback circuit is activated and the controller becomes unsynchronized. When VOUT exceeds 3.0 V, the controller resynchronizes to the externa ...
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.