AN2757
... The input lines CW/CCW, CONTROL, HALF / FULL, EN and RESET are connected to ground through a pull-down resistor which sets the low logic level as default. An external signal can be applied to change each input status. D1, C1 and C4 constitute a charge pump circuit, which generates the supply voltage ...
... The input lines CW/CCW, CONTROL, HALF / FULL, EN and RESET are connected to ground through a pull-down resistor which sets the low logic level as default. An external signal can be applied to change each input status. D1, C1 and C4 constitute a charge pump circuit, which generates the supply voltage ...
Techniques for Measuring Efficiency
... measurement after the diode rectifier stage has converted the AC input to DC. To improve the measurement accuracy, the losses in components prior to the DC bus stage must be taken into account. The diode rectifier bridge is typically the most lossy component in the input stage, with the drop in each ...
... measurement after the diode rectifier stage has converted the AC input to DC. To improve the measurement accuracy, the losses in components prior to the DC bus stage must be taken into account. The diode rectifier bridge is typically the most lossy component in the input stage, with the drop in each ...
UPS Key Product Criteria The ENERGY STAR specification for
... Also known as “line-interactive” UPSs, Voltage Independent (VI) UPSs are capable of protecting the load from power outages and provide additional corrective voltage functions. Typically in sizes up to 5,000 VA, they are used commonly for small business, Web, and departmental servers. They also norm ...
... Also known as “line-interactive” UPSs, Voltage Independent (VI) UPSs are capable of protecting the load from power outages and provide additional corrective voltage functions. Typically in sizes up to 5,000 VA, they are used commonly for small business, Web, and departmental servers. They also norm ...
EXPERIMENT NO 4
... interest and over different IC types. The input impedance is typically 1M ohm, while the output impedance is within 75 ohms. So long as the output voltage vo remains within linear limits (i.e. not saturated), many opamp circuits can be analyzed using the assumption that v+ practically equals v-. Nei ...
... interest and over different IC types. The input impedance is typically 1M ohm, while the output impedance is within 75 ohms. So long as the output voltage vo remains within linear limits (i.e. not saturated), many opamp circuits can be analyzed using the assumption that v+ practically equals v-. Nei ...
MEGA Electronics Inc. Duratech industries AgileSwitch LEM USA
... Current and Voltage Transducers At the heart of power electronics. LEM products fall broadly into multiple areas of application and are used within general industry, automotive industry, for railway and trackside applications, energy & automation, and battery monitoring. ...
... Current and Voltage Transducers At the heart of power electronics. LEM products fall broadly into multiple areas of application and are used within general industry, automotive industry, for railway and trackside applications, energy & automation, and battery monitoring. ...
App Note 509 - What is Regulation and Repeatability?
... In most capacitor charging application repeatability of 1% is typical and acceptable, however in certain applications such as Excimer lasers in semiconductor lithography, the repeatability requirements can be extreme (0.1%) and are made more challenging with small load capacitors and high repetition ...
... In most capacitor charging application repeatability of 1% is typical and acceptable, however in certain applications such as Excimer lasers in semiconductor lithography, the repeatability requirements can be extreme (0.1%) and are made more challenging with small load capacitors and high repetition ...
Test Procedure for NCP1031 POE Evaluation Board
... 8. Adjust the bench supply slowly down to approximately 35 Vdc. The converter should shut off between 34 and 36 Vdc and the output will go to zero. Adjust the input back to 38 Vdc and the converter should come back on with normal output. 9. Adjust the input voltage back to 48 Vdc and then slowly inc ...
... 8. Adjust the bench supply slowly down to approximately 35 Vdc. The converter should shut off between 34 and 36 Vdc and the output will go to zero. Adjust the input back to 38 Vdc and the converter should come back on with normal output. 9. Adjust the input voltage back to 48 Vdc and then slowly inc ...
Solved_Problems_to_Chapter_11
... 11.5 An a.c. full-wave voltage controller operating in integral cycle mode feeds a resistive load of 10W from a single phase a.c. voltage source related at 230 V, 50 Hz. The thyristor switch is ON for 25 cycles followed by 75 cycles of extinction period. Determine: (a) rms value of load voltage and ...
... 11.5 An a.c. full-wave voltage controller operating in integral cycle mode feeds a resistive load of 10W from a single phase a.c. voltage source related at 230 V, 50 Hz. The thyristor switch is ON for 25 cycles followed by 75 cycles of extinction period. Determine: (a) rms value of load voltage and ...
VOLTAGE TO CURRENT CONVERTER USING OP AMP
... With Grounded Load In this circuit,one terminal of the load is grounded and load current is controlled by an input voltage.The analysis of the circuit is accomplished by first determining the voltage V1 at the non inverting input terminal and then establishing the relationship between V1 and the ...
... With Grounded Load In this circuit,one terminal of the load is grounded and load current is controlled by an input voltage.The analysis of the circuit is accomplished by first determining the voltage V1 at the non inverting input terminal and then establishing the relationship between V1 and the ...
4035
... Crystal Displays (LCDs). The LCD display is used in laptop computers, gas pumps, automobiles, test equipment, PDAs and medical instruments. CCFLs are small, efficient and inexpensive. The lamp must be driven by a specialized power supply. High sinusoidal AC voltage is needed to start the lamps, but ...
... Crystal Displays (LCDs). The LCD display is used in laptop computers, gas pumps, automobiles, test equipment, PDAs and medical instruments. CCFLs are small, efficient and inexpensive. The lamp must be driven by a specialized power supply. High sinusoidal AC voltage is needed to start the lamps, but ...
PowerRanger - Endelos Energy
... consists of any appliance with motors, solenoids, relays and transformers such as air-conditioners, washers, dryers, refrigerators, induction motor, pumps, fans, power transformers, lighting ballasts, welder, induction furnace, etc. As the motor operates, this reactive power is "pulled" and "pushed" ...
... consists of any appliance with motors, solenoids, relays and transformers such as air-conditioners, washers, dryers, refrigerators, induction motor, pumps, fans, power transformers, lighting ballasts, welder, induction furnace, etc. As the motor operates, this reactive power is "pulled" and "pushed" ...
DMS-20PC-0-DCM-C Datasheet
... Murata Power Solutions’ DMS-20PC-DCM Series of self-powered, positive-reading, dc voltage monitors are great replacements for older, hard-to-read, analog panel meters. Simply connect a positive dc voltage across the rear terminals and the meters are fully operational — no additional components or po ...
... Murata Power Solutions’ DMS-20PC-DCM Series of self-powered, positive-reading, dc voltage monitors are great replacements for older, hard-to-read, analog panel meters. Simply connect a positive dc voltage across the rear terminals and the meters are fully operational — no additional components or po ...
Download T3000 Datasheet
... Frequency Relay Description The T3000 Frequency Relay is designed for frequency monitoring on generators, bus bars or other distribution systems. The T3000 consists of two circuits, one circuit for over frequency and one for under frequency monitoring. Each circuit has individual settings for freque ...
... Frequency Relay Description The T3000 Frequency Relay is designed for frequency monitoring on generators, bus bars or other distribution systems. The T3000 consists of two circuits, one circuit for over frequency and one for under frequency monitoring. Each circuit has individual settings for freque ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.