P6 student checklist 2017
... Explain why transformers use alternating current and how they can change the size of an alternating voltage. Explain that isolating transformers have equal numbers of turns on both coils to limit the risk of contact between live parts and the earth lead. Use and manipulate the equation: VpIp = VsIs ...
... Explain why transformers use alternating current and how they can change the size of an alternating voltage. Explain that isolating transformers have equal numbers of turns on both coils to limit the risk of contact between live parts and the earth lead. Use and manipulate the equation: VpIp = VsIs ...
Specification Status: Released PolyZen GENERAL DESCRIPTION
... and 24hours trip endurance at the specified voltage (VIN-VOUT) and current (IPTC). VINT Max testing is conducted using a "shorted" load (VOUT = 0V). VINT Max is a survivability rating, not a performance rating. Note 9: IFLT Max: IFLT Max relates to the stead state current flowing through the diode p ...
... and 24hours trip endurance at the specified voltage (VIN-VOUT) and current (IPTC). VINT Max testing is conducted using a "shorted" load (VOUT = 0V). VINT Max is a survivability rating, not a performance rating. Note 9: IFLT Max: IFLT Max relates to the stead state current flowing through the diode p ...
valve voltmeter - Keith
... In fact, assuming for the moment that the cathode of V3 is somehow kept at a constant potential, and that the gain from the grid of V3 to the cathode of VI is of the order of 100, only about - O.OIV change in the grid potential of V3 would be needed to raise the cathode of VI by I volt. In effect, t ...
... In fact, assuming for the moment that the cathode of V3 is somehow kept at a constant potential, and that the gain from the grid of V3 to the cathode of VI is of the order of 100, only about - O.OIV change in the grid potential of V3 would be needed to raise the cathode of VI by I volt. In effect, t ...
Addressable Input/Output Module I-9301 / I-9303
... module activates its relay to change state. Once the equipment under control has operated a confirmation signal can be sent back to the fire alarm controller. The I9303 has two addresses, which can receive the two different action orders from the controller and has two different control outputs and ...
... module activates its relay to change state. Once the equipment under control has operated a confirmation signal can be sent back to the fire alarm controller. The I9303 has two addresses, which can receive the two different action orders from the controller and has two different control outputs and ...
FPF3040 IntelliMAX™ 20 V-Rated Dual Input Single Output Power-Source-Selector Switch
... Maximum ISW: 2 A Per Channel ...
... Maximum ISW: 2 A Per Channel ...
COMBOLIGHT Remodel Recessed w/ Trim - 12V MR16 - 1 Light
... help conceal the inner hardware of the fixture from sight below the ceiling. Can accommodate various ceiling thickness. B.... System Protection: Thermal protection provided to guard against overheating and misuse of insulation over and around fixture. Vent holes in housing provide cooler operation. ...
... help conceal the inner hardware of the fixture from sight below the ceiling. Can accommodate various ceiling thickness. B.... System Protection: Thermal protection provided to guard against overheating and misuse of insulation over and around fixture. Vent holes in housing provide cooler operation. ...
Electronic Troubleshooting
... • Goes higher than Vcc with input • Inductive kickback » Changing primary current causes generation of voltage that adds to the source voltage » Can be very large with an open secondary ...
... • Goes higher than Vcc with input • Inductive kickback » Changing primary current causes generation of voltage that adds to the source voltage » Can be very large with an open secondary ...
HI-200, HI-201 Datasheet
... HI-201-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC HI-201-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -25oC to 85oC HI-200-5, HI-201-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 75oC HI-201-9 . . . . . . . . . ...
... HI-201-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC HI-201-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -25oC to 85oC HI-200-5, HI-201-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 75oC HI-201-9 . . . . . . . . . ...
MAX6610,11 - Maxim Integrated
... intended to drive light loads. As a result, the temperature rise due to power dissipation on the die is insignificant under normal conditions. For example, assume that the MAX6611 is operating from a 5V supply at +50°C (VTEMP = 2V) and that the temperature output is driving a 100kΩ load (ITEMP = 20µ ...
... intended to drive light loads. As a result, the temperature rise due to power dissipation on the die is insignificant under normal conditions. For example, assume that the MAX6611 is operating from a 5V supply at +50°C (VTEMP = 2V) and that the temperature output is driving a 100kΩ load (ITEMP = 20µ ...
The Beast with a Thousand JFETs.
... Clearly we're going to have to do something dramatic to make this into a real power amplifier, and this is where Roger Corman comes in. One of his movies was “The Beast With a Million Eyes *, in which the monster's powers depended on having a large vision. We can arrange these circuits in parallel f ...
... Clearly we're going to have to do something dramatic to make this into a real power amplifier, and this is where Roger Corman comes in. One of his movies was “The Beast With a Million Eyes *, in which the monster's powers depended on having a large vision. We can arrange these circuits in parallel f ...
DTMF decoder
... the high group filter filters high group frequency signal output. Each filter output is followed by a zero-crossing detector with hysteresis. When each signal amplitude at the output exceeds the specified level, it is transferred to full swing logic signal. When input signals are recognized to be ef ...
... the high group filter filters high group frequency signal output. Each filter output is followed by a zero-crossing detector with hysteresis. When each signal amplitude at the output exceeds the specified level, it is transferred to full swing logic signal. When input signals are recognized to be ef ...
AN2794
... thanks to a dual stage conversion topology including an efficient step-up push-pull DC-DC converter, to produce a regulated high-voltage DC bus and a sinusoidal H-Bridge PWM inverter to generate a 50 Hz, 230 Vrms output sine wave. Other relevant features of the proposed system are high power density ...
... thanks to a dual stage conversion topology including an efficient step-up push-pull DC-DC converter, to produce a regulated high-voltage DC bus and a sinusoidal H-Bridge PWM inverter to generate a 50 Hz, 230 Vrms output sine wave. Other relevant features of the proposed system are high power density ...
FSFA2100 — Fairchild Power Switch (FPS™) for Half-Bridge PWM Converters
... When the high-side MOSFET turns off, the primary current flows back to the DC link capacitor through the body diode of the low-side MOSFET. It keeps the same status even after turning on and off the low-side MOSFET. When the high-side MOSFET turns on again, a huge current can flow from the DC link c ...
... When the high-side MOSFET turns off, the primary current flows back to the DC link capacitor through the body diode of the low-side MOSFET. It keeps the same status even after turning on and off the low-side MOSFET. When the high-side MOSFET turns on again, a huge current can flow from the DC link c ...
SG6742ML/MR Highly Integrated Green-Mode PWM Controller SG6742M L/M
... When the SENSE voltage across sense resistor RS reaches the threshold voltage, around 0.9V, the output GATE drive is turned off after a small delay, tPD. This delay introduces an additional current proportional to tPD • VIN / LP. Since the delay is nearly constant regardless of the input voltage VIN ...
... When the SENSE voltage across sense resistor RS reaches the threshold voltage, around 0.9V, the output GATE drive is turned off after a small delay, tPD. This delay introduces an additional current proportional to tPD • VIN / LP. Since the delay is nearly constant regardless of the input voltage VIN ...
general product information
... voltages, substitute the code from the Coil Voltage Selection Chart for the two digits after the last dash in the catalog number. Ex.: A 48V coil is required for an AL30 contactor: AL30-30-10-83 ...
... voltages, substitute the code from the Coil Voltage Selection Chart for the two digits after the last dash in the catalog number. Ex.: A 48V coil is required for an AL30 contactor: AL30-30-10-83 ...
time delay relays
... The THR-3 Series products are designed to replace thousands of products from Macromatic and many other manufacturers with just three Catalog Numbers. Each comes with four functions & four timing ranges covering 0.1 second to 100 minutes (1,000 minutes on THR-3856U dual time unit). On the same unit, ...
... The THR-3 Series products are designed to replace thousands of products from Macromatic and many other manufacturers with just three Catalog Numbers. Each comes with four functions & four timing ranges covering 0.1 second to 100 minutes (1,000 minutes on THR-3856U dual time unit). On the same unit, ...
Distributed Energy Resources (DER) Webinar
... needs : • Many customers with PV, tend to export during times of low native load and can raise voltage at their premise, sometimes over 126V on a 120V base, and now need “Voltage Headroom”. • High penetration feeders and feeder sections are starting to exhibit violations such as high voltage. There ...
... needs : • Many customers with PV, tend to export during times of low native load and can raise voltage at their premise, sometimes over 126V on a 120V base, and now need “Voltage Headroom”. • High penetration feeders and feeder sections are starting to exhibit violations such as high voltage. There ...
DASH LIGHT DIMMER
... 3. Connect the “+” terminal (Term. No. 2) on the control module to a suitable positive source, via a 5 amp fuse.. This must be live whenever the dash lights are on. Usually this will go to battery positive. 4. Connect the “ – ” terminal (Term. No. 1) to a good earth or ground connection. 5. Connect ...
... 3. Connect the “+” terminal (Term. No. 2) on the control module to a suitable positive source, via a 5 amp fuse.. This must be live whenever the dash lights are on. Usually this will go to battery positive. 4. Connect the “ – ” terminal (Term. No. 1) to a good earth or ground connection. 5. Connect ...
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.