RT9302 - Richtek
... to 5.5V. An input capacitor at the VIN pin could reduce ripple voltage. It is recommended to use a ceramic 1μF or larger capacitance as the input capacitor. This IC provides an under voltage lockout (UVLO) function to prevent it from unstable issue when startup. The UVLO threshold of input falling v ...
... to 5.5V. An input capacitor at the VIN pin could reduce ripple voltage. It is recommended to use a ceramic 1μF or larger capacitance as the input capacitor. This IC provides an under voltage lockout (UVLO) function to prevent it from unstable issue when startup. The UVLO threshold of input falling v ...
LT1019 - Precision Reference
... change in input voltage causes a typical output shift of less than 5ppm. Load regulation (sourcing current) is nearly as good. A 5mA change in load current shifts output voltage by only 100µV. These are electrical effects, measured with low duty cycle pulses to eliminate heating effects. In real wor ...
... change in input voltage causes a typical output shift of less than 5ppm. Load regulation (sourcing current) is nearly as good. A 5mA change in load current shifts output voltage by only 100µV. These are electrical effects, measured with low duty cycle pulses to eliminate heating effects. In real wor ...
ASYC IV Portable Digital Multimeters 6,000 cts – 60.000 cts MTX 3290/MTX 3291,
... delivered with the instrument or approved by the manufacturer. If the measurement category of the accessory is different from that of the instrument, the lowest category applies to the unit. ...
... delivered with the instrument or approved by the manufacturer. If the measurement category of the accessory is different from that of the instrument, the lowest category applies to the unit. ...
Power Electronics
... around a core either of air or of ferrous material. Core materials with a higher permeability than air confine the magnetic field closely to the inductor, thereby increasing the inductance. Inductors come in many shapes. Most are constructed as enamel coated wire wrapped around a ferrite bobbin with ...
... around a core either of air or of ferrous material. Core materials with a higher permeability than air confine the magnetic field closely to the inductor, thereby increasing the inductance. Inductors come in many shapes. Most are constructed as enamel coated wire wrapped around a ferrite bobbin with ...
docx - Seattle Central College
... The pin labeled “NC” is unconnected and isn’t used. The pins labeled “Offset null” are used for error correction and not used in this section. V+ is connected to supply and V- is connected to “negative supply.” In some circuits this may be a potential lower than ground (perhaps achieved by introduci ...
... The pin labeled “NC” is unconnected and isn’t used. The pins labeled “Offset null” are used for error correction and not used in this section. V+ is connected to supply and V- is connected to “negative supply.” In some circuits this may be a potential lower than ground (perhaps achieved by introduci ...
Clamp Meters Clamp Meters - Puerto Rico Suppliers .com
... the ACD-10 PLUS, ACD-10 TRMS-PLUS, ACD-14 PLUS, and ACD-14 TRMS PLUS allow access to tight measurement areas and still accommodate conductors up to 1 inch (25 cm). The ACD-14 PLUS and ACD-14 TRMS-PLUS are the professional’s choice for both HVAC and electrical applications with a complete set of meas ...
... the ACD-10 PLUS, ACD-10 TRMS-PLUS, ACD-14 PLUS, and ACD-14 TRMS PLUS allow access to tight measurement areas and still accommodate conductors up to 1 inch (25 cm). The ACD-14 PLUS and ACD-14 TRMS-PLUS are the professional’s choice for both HVAC and electrical applications with a complete set of meas ...
Full-Text PDF
... shunt resistance, since it leads to power loss in a fully-irradiated solar panel. However, when there is a current mismatch between the cells, one can calculate an optimized shunt resistance that will maximize the output power. This solution is not very practical, since the optimized value for the s ...
... shunt resistance, since it leads to power loss in a fully-irradiated solar panel. However, when there is a current mismatch between the cells, one can calculate an optimized shunt resistance that will maximize the output power. This solution is not very practical, since the optimized value for the s ...
3.4 Pulsed and Steady-State Power Supplies
... The total peak pulsed power demand will be limited to 500 MW active power and 400 Mvar reactive power. This includes power required for the pre-programmed PF scenarios, power needed for the plasma current, position and shape control, including the vertical stabilisation, and power to supply the H&CD ...
... The total peak pulsed power demand will be limited to 500 MW active power and 400 Mvar reactive power. This includes power required for the pre-programmed PF scenarios, power needed for the plasma current, position and shape control, including the vertical stabilisation, and power to supply the H&CD ...
thiet ke web
... Engineers have to deal with numbers on an everyday basis, and some of these numbers can be very large or very small. In most cases, what is most important is the ratio of two quantities. For example, a mobile radio base station might transmit approx. 80 W of power (antenna gain included). The mobile ...
... Engineers have to deal with numbers on an everyday basis, and some of these numbers can be very large or very small. In most cases, what is most important is the ratio of two quantities. For example, a mobile radio base station might transmit approx. 80 W of power (antenna gain included). The mobile ...
is the DC-grid voltage.
... high DC-voltage (originally mercury-vapor rectifiers were used, nowadays semiconductor rectifiers are used). The very high DC-voltage will be used to transport the electrical energy over a long distance (HVDC: High Voltage Direct Current). At the other side of the DC-grid, an inverter converts this ...
... high DC-voltage (originally mercury-vapor rectifiers were used, nowadays semiconductor rectifiers are used). The very high DC-voltage will be used to transport the electrical energy over a long distance (HVDC: High Voltage Direct Current). At the other side of the DC-grid, an inverter converts this ...
Modular unit based on Power Relay F4/F7 to be customized
... n Modular unit based on Power Relay F4/F7 to be customized with one or more relays, electronics or further components. n Limiting continuous current up to 70A (example shown on this datasheet, 40A versions on request) n Pin assignment according to ISO 7588 part 1 n Terminals prepared for solderin ...
... n Modular unit based on Power Relay F4/F7 to be customized with one or more relays, electronics or further components. n Limiting continuous current up to 70A (example shown on this datasheet, 40A versions on request) n Pin assignment according to ISO 7588 part 1 n Terminals prepared for solderin ...
DS1330W
... write cycle. The write cycle is terminated by the earlier rising edge of CE or WE . All address inputs must be kept valid throughout the write cycle. WE must return to the high state for a minimum recovery time (tWR) before another cycle can be initiated. The OE control signal should be kept inactiv ...
... write cycle. The write cycle is terminated by the earlier rising edge of CE or WE . All address inputs must be kept valid throughout the write cycle. WE must return to the high state for a minimum recovery time (tWR) before another cycle can be initiated. The OE control signal should be kept inactiv ...
MC1496 MC1596 Specifications and Applications
... uPPer limit on in Put-signal amplitude (see Note 3 and Figure 20). Note also that an optimum carrier level is recommended in Figure 22 for good carrier suppression and minimum spurious side- ...
... uPPer limit on in Put-signal amplitude (see Note 3 and Figure 20). Note also that an optimum carrier level is recommended in Figure 22 for good carrier suppression and minimum spurious side- ...
Non-insulated SCR / Triac control circuits
... SCR and Triac triggering circuit with a positive power supply With positive power supplies, the gate current can be only sourced from the control circuit to the gate. Such a topology is adapted for SCRs control. For Triacs, the devices are then triggered in quadrants Q1 and Q4. Such an operation is ...
... SCR and Triac triggering circuit with a positive power supply With positive power supplies, the gate current can be only sourced from the control circuit to the gate. Such a topology is adapted for SCRs control. For Triacs, the devices are then triggered in quadrants Q1 and Q4. Such an operation is ...
Music IC Alarm IC More about the ICs in Snap Circuits
... All objects (including people and animals) produce infrared radiation due to the heat in them. Infrared radiation is similar to visible light but has a longer wavelength that our eyes cannot detect. The lens on top of the motion detector module filters and focuses the radiation, it is most sensitive ...
... All objects (including people and animals) produce infrared radiation due to the heat in them. Infrared radiation is similar to visible light but has a longer wavelength that our eyes cannot detect. The lens on top of the motion detector module filters and focuses the radiation, it is most sensitive ...
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.