IGBT or MOSFET: Choose Wisely
... In this specific application, the IGBT appears to be the device of choice. But when the average power consumption during an entire workday is considered, the maximum torque is used only 15% of the time and the average torque load of the motor is only 25% of the rated torque. Under average or typical ...
... In this specific application, the IGBT appears to be the device of choice. But when the average power consumption during an entire workday is considered, the maximum torque is used only 15% of the time and the average torque load of the motor is only 25% of the rated torque. Under average or typical ...
Abstract - Caritas University
... output power but because of losses incurred such as core losses, and eddy current losses, the input power is higher than the output power. Mathematically; Pp = Ps Where P=IV Thus Vp Ip = VsIs Or Pp = Losses + Ps Thus a step down transformer steps the voltage down from 240V to 15V. ...
... output power but because of losses incurred such as core losses, and eddy current losses, the input power is higher than the output power. Mathematically; Pp = Ps Where P=IV Thus Vp Ip = VsIs Or Pp = Losses + Ps Thus a step down transformer steps the voltage down from 240V to 15V. ...
汉王PDF转换RTF文档
... inputs and rail-to-rail output capabilities. These amplifiers provide a 90kH z gain-bandwidth product while using only 10µA of supply current per amplifier. The MAX4241/MAX4243 have a low-power shutdown mode that reduces supply current to less than 1µA and forces the output into a high-impedance sta ...
... inputs and rail-to-rail output capabilities. These amplifiers provide a 90kH z gain-bandwidth product while using only 10µA of supply current per amplifier. The MAX4241/MAX4243 have a low-power shutdown mode that reduces supply current to less than 1µA and forces the output into a high-impedance sta ...
AAT3603A 数据资料DataSheet下载
... constant current/constant voltage linear charger. It includes an integrated pass device, reverse blocking protection, high accuracy current and voltage regulation, charge status, and charge termination. The charging current, charge termination current, and recharge voltage are programmable with an e ...
... constant current/constant voltage linear charger. It includes an integrated pass device, reverse blocking protection, high accuracy current and voltage regulation, charge status, and charge termination. The charging current, charge termination current, and recharge voltage are programmable with an e ...
MAX2691 L2 Band GPS Low-Noise Amplifier General Description Features
... These values are optimized for the best simultaneous gain, noise figure, and return loss performance. Reducing the input coupling capacitor results in a lower IIP3. The device integrates an on-chip output matching to 50I at the output, eliminating the need for external matching components. Table 1 l ...
... These values are optimized for the best simultaneous gain, noise figure, and return loss performance. Reducing the input coupling capacitor results in a lower IIP3. The device integrates an on-chip output matching to 50I at the output, eliminating the need for external matching components. Table 1 l ...
350-mA, 6-MHz HIGH-EFFICIENCY STEP
... Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolu ...
... Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolu ...
DS1080CL Spread-Spectrum Crystal Multiplier General Description Features
... The PDN input can be used to place the device into a low-power standby mode where the SSO output is high impedance. If the PDN pin is open, the SSO output is active but the spread-spectrum dithering is disabled. The spread-spectrum dither rate is fixed at fIN/512 to keep the dither rate above the au ...
... The PDN input can be used to place the device into a low-power standby mode where the SSO output is high impedance. If the PDN pin is open, the SSO output is active but the spread-spectrum dithering is disabled. The spread-spectrum dither rate is fixed at fIN/512 to keep the dither rate above the au ...
FTL7522 Low I Reset Timer with Fixed Delay and Reset Pulse
... LOW for factory testing. The DSR pin MUST be forced to GND during normal operation. The DSR pin should never be driven HIGH or left to float during normal operation. The DSR pin state should never be changed during device operation; it must be biased prior to supplying the VCC supply. If there is a ...
... LOW for factory testing. The DSR pin MUST be forced to GND during normal operation. The DSR pin should never be driven HIGH or left to float during normal operation. The DSR pin state should never be changed during device operation; it must be biased prior to supplying the VCC supply. If there is a ...
Physics and Technology
... The angular distribution of the emitted radiation corresponds nearly perfectly to the lambertian emission pattern of point sources I0 = I () x cos and enables an efficient coupling of the output power into optical systems. Exemplary data on chip and assembled device are given in table 1. A furthe ...
... The angular distribution of the emitted radiation corresponds nearly perfectly to the lambertian emission pattern of point sources I0 = I () x cos and enables an efficient coupling of the output power into optical systems. Exemplary data on chip and assembled device are given in table 1. A furthe ...
RD-021M8
... ◇The output voltage of the power supply is as described in the specifications. ◇The voltage/current of the input/output terminals conforms to the ratings in the specifications. ◇Input/output terminals are not incorrectly wired or accidentally short-circuited. ◇Do not short resistance terminals (R-A ...
... ◇The output voltage of the power supply is as described in the specifications. ◇The voltage/current of the input/output terminals conforms to the ratings in the specifications. ◇Input/output terminals are not incorrectly wired or accidentally short-circuited. ◇Do not short resistance terminals (R-A ...
CS3.241 - PULS Power Supply
... This device may only be installed and put into operation by qualified personnel. This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect. If damage or malfunction should occur during installation or operation, immediately turn power off and se ...
... This device may only be installed and put into operation by qualified personnel. This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect. If damage or malfunction should occur during installation or operation, immediately turn power off and se ...
Bulletin 7604-00E WT210/WT230 Digital Power Meters
... and phase angle (deg) are calculated from voltage, current, and active power. (Therefore, if the input contains a distorted wave, the values may not match those of other measuring instruments based on different measurement principles.) 2. If either voltage or current falls to 0.5%(for crest factor 3 ...
... and phase angle (deg) are calculated from voltage, current, and active power. (Therefore, if the input contains a distorted wave, the values may not match those of other measuring instruments based on different measurement principles.) 2. If either voltage or current falls to 0.5%(for crest factor 3 ...
fault location on distribution systems - Working Group
... With this simple equation, we can estimate answers with voltage and current magnitudes. For a ground fault, Zl=ZS is about one ohm per mile. If the line-to-ground voltage, V=5000 V, and the fault current, I=1500 A, the fault is at about 3.3 miles (5000/1500). Remember to use the phaseto-phase volta ...
... With this simple equation, we can estimate answers with voltage and current magnitudes. For a ground fault, Zl=ZS is about one ohm per mile. If the line-to-ground voltage, V=5000 V, and the fault current, I=1500 A, the fault is at about 3.3 miles (5000/1500). Remember to use the phaseto-phase volta ...
Dahlander motor
... Full motor protecting switching devices for motors with thermal contact For a truly effective motor protection, the influence of the cooling system must be taken into account. This is achieved by measuring the temperature directly at the point where it can harm the motor, i.e. within the winding. Wi ...
... Full motor protecting switching devices for motors with thermal contact For a truly effective motor protection, the influence of the cooling system must be taken into account. This is achieved by measuring the temperature directly at the point where it can harm the motor, i.e. within the winding. Wi ...
AAT4684 数据资料DataSheet下载
... large transients and a high voltage spike can occur which can damage other electronic devices in the product such as the battery charger. A hot plug of the AC/DC wall adapter into the AC outlet can create and release a voltage spike from the transformer. As a result, some sensitive devices within th ...
... large transients and a high voltage spike can occur which can damage other electronic devices in the product such as the battery charger. A hot plug of the AC/DC wall adapter into the AC outlet can create and release a voltage spike from the transformer. As a result, some sensitive devices within th ...
Keysight Technologies U1881A and U1882B Measurement
... Fast, automatic and reliable characterization of switching mode power devices Today’s power supply designers are facing an increasing number of constraints in the development of high-efficiency, low-cost power supplies. Cost-effective solutions used to be the designer’s key target. Today, rising ene ...
... Fast, automatic and reliable characterization of switching mode power devices Today’s power supply designers are facing an increasing number of constraints in the development of high-efficiency, low-cost power supplies. Cost-effective solutions used to be the designer’s key target. Today, rising ene ...
AN-300 Simple Circuit Detects Loss of 4
... The test circuit of Figure 2 is necessary for trimming the detector in Figure 3. This circuit does not have a trim pot, and thus avoids the problem of someone mis-adjusting the circuit after it is once trimmed correctly. It also avoids the compromises between good but expensive trim pots and cheap b ...
... The test circuit of Figure 2 is necessary for trimming the detector in Figure 3. This circuit does not have a trim pot, and thus avoids the problem of someone mis-adjusting the circuit after it is once trimmed correctly. It also avoids the compromises between good but expensive trim pots and cheap b ...
BU406/406H/408 NPN Epitaxial Silicon Transistor BU406/406H/408 — NPN Epit axi
... cause the failure of the life support device or system, or to affect its sustain life, and (c) whose failure to perform when properly used in safety or effectiveness. accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the us ...
... cause the failure of the life support device or system, or to affect its sustain life, and (c) whose failure to perform when properly used in safety or effectiveness. accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the us ...
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.