AN3172
... considerable amount of ripple at twice the mains frequency. Because the VFF signal is fed into the multiplier the excessive ripple causes distortion of the current reference resulting in high THD and poor PF. On the other hand, if the time constant is set too large there is a considerable delay in s ...
... considerable amount of ripple at twice the mains frequency. Because the VFF signal is fed into the multiplier the excessive ripple causes distortion of the current reference resulting in high THD and poor PF. On the other hand, if the time constant is set too large there is a considerable delay in s ...
Electrical Principles
... When a voltage is applied to a capacitor through a resistance (all circuits have resistance) it takes time for the voltage across the capacitor to reach the applied voltage. At the instant the voltage is applied the current in the circuit is at a maximum limited only by the circuit resistance. As ti ...
... When a voltage is applied to a capacitor through a resistance (all circuits have resistance) it takes time for the voltage across the capacitor to reach the applied voltage. At the instant the voltage is applied the current in the circuit is at a maximum limited only by the circuit resistance. As ti ...
Vacuum circuit-breaker up to 36 kV
... switches are not necessarily dependent on the switching device‘s position, but are actuated e.g. via cams or via various elements installed on the switch. The control switches are wired to the terminal strip; on request, a plug-and-socket connection (with connector and connector base) is ...
... switches are not necessarily dependent on the switching device‘s position, but are actuated e.g. via cams or via various elements installed on the switch. The control switches are wired to the terminal strip; on request, a plug-and-socket connection (with connector and connector base) is ...
3TL Vacuum Contactors Selection and Ordering Data
... As the operating mechanism is located at the rear, 3TL6 vacuum contactors have a very compact design. This arrangement also enables front access to the main conductor terminals as well as very variable installation options. In 3TL7 (bottom-right illustration) / 3TL8 (top-right illustration) contacto ...
... As the operating mechanism is located at the rear, 3TL6 vacuum contactors have a very compact design. This arrangement also enables front access to the main conductor terminals as well as very variable installation options. In 3TL7 (bottom-right illustration) / 3TL8 (top-right illustration) contacto ...
Max232 - Maxim Integrated
... ROUT........................................................-0.3V to (VCC + 0.3V) Short-Circuit Duration, TOUT to GND ........................Continuous Continuous Power Dissipation (TA = +70°C) 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)....800mW 16-Pin Plastic DIP (derate 10.53mW/°C above + ...
... ROUT........................................................-0.3V to (VCC + 0.3V) Short-Circuit Duration, TOUT to GND ........................Continuous Continuous Power Dissipation (TA = +70°C) 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)....800mW 16-Pin Plastic DIP (derate 10.53mW/°C above + ...
Voltage Regulator TAPCON® 230
... automatic control of transformers with a motor-driven onload tap-changer. The motor-drive mechanism receives the corresponding control commands from the voltage regulator. With these commands, the on-load tap-changer moves to the next position and the transformer’s voltage value is adapted to the pr ...
... automatic control of transformers with a motor-driven onload tap-changer. The motor-drive mechanism receives the corresponding control commands from the voltage regulator. With these commands, the on-load tap-changer moves to the next position and the transformer’s voltage value is adapted to the pr ...
Intrinsic Safety Circuit Design
... universal device that often is isolated so that a ground for safety is not required; or the engineered approach, which uses grounded safety barriers. ■ Isolated temperature converters. These universal devices measure temperature in hazardous areas, but at a higher cost. (Dispensing with the need for ...
... universal device that often is isolated so that a ground for safety is not required; or the engineered approach, which uses grounded safety barriers. ■ Isolated temperature converters. These universal devices measure temperature in hazardous areas, but at a higher cost. (Dispensing with the need for ...
PDF
... DC motor. Speed control in DC motor is an important issue. With time the need of flexible speed control for motor is becoming essential. One way to control the speed of the motor is by varying its input voltage. Thus this project aims on designing a rectifier circuit that can supply a voltage as req ...
... DC motor. Speed control in DC motor is an important issue. With time the need of flexible speed control for motor is becoming essential. One way to control the speed of the motor is by varying its input voltage. Thus this project aims on designing a rectifier circuit that can supply a voltage as req ...
lecture1423723756
... provides a gradual but quick, transition from the current carrying to the current breaking states of the contacts. Arc Interruption or Arc Quenching or Arc Extinction Theory Arc Column Characteristics At high temperature the charged particles in a gas are rapidly and randomly move, but in absence of ...
... provides a gradual but quick, transition from the current carrying to the current breaking states of the contacts. Arc Interruption or Arc Quenching or Arc Extinction Theory Arc Column Characteristics At high temperature the charged particles in a gas are rapidly and randomly move, but in absence of ...
Voltage management
... YES, IN MANY CASES – Most motors in use today are asynchronous induction motors. Large (>20kW) induction motors have low losses. When operating within 70-90 per cent of their rated output they are very efficient (as high as 95 per cent), and are effectively voltage independent. However, this is an i ...
... YES, IN MANY CASES – Most motors in use today are asynchronous induction motors. Large (>20kW) induction motors have low losses. When operating within 70-90 per cent of their rated output they are very efficient (as high as 95 per cent), and are effectively voltage independent. However, this is an i ...
Euler`s Coil Technology Experiment 2
... which we have one Source coil in the middle of two Response coils. Yet another comparison circuit 2 is an A.C source connected to a modified Transformer which we have one Source coil at the center of radius of a circle formed three Response coils. Notice all Source and Response coil setup are separa ...
... which we have one Source coil in the middle of two Response coils. Yet another comparison circuit 2 is an A.C source connected to a modified Transformer which we have one Source coil at the center of radius of a circle formed three Response coils. Notice all Source and Response coil setup are separa ...
CHAPTER 2 SUBMERGED ARC WELDING (SAW
... A typical set up of an automatic SAW is shown in Fig.2.1 (b). A continuous (wire) electrode is being mechanically fed into the joint by powered drive rolls. A layer of granular flux, deep enough to prevent the flash through, is being deposited in front of the Arc. Electrical current which produces t ...
... A typical set up of an automatic SAW is shown in Fig.2.1 (b). A continuous (wire) electrode is being mechanically fed into the joint by powered drive rolls. A layer of granular flux, deep enough to prevent the flash through, is being deposited in front of the Arc. Electrical current which produces t ...
SR4A Instruction Manual - Gen
... reactive loads with no decrease or droop in the generator system output voltage. This is accomplished by the action and circuitry described previously for reactive droop compensation, and the addition of cross connecting leads between the parallel CT secondaries as shown is Figure 3-4. By connecting ...
... reactive loads with no decrease or droop in the generator system output voltage. This is accomplished by the action and circuitry described previously for reactive droop compensation, and the addition of cross connecting leads between the parallel CT secondaries as shown is Figure 3-4. By connecting ...
NCP1351ADAPGEVB NCP1351 57 W Adapter Evaluation Board User's Manual
... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marki ...
... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marki ...
chapter 9: power management
... performance of high performance circuits. Local decoupling helps—but it is not sufficient. Power management broadly refers to the generation and control of regulated voltages required to operate an electronic system. It encompasses much more than just power supply design. Today's systems require pow ...
... performance of high performance circuits. Local decoupling helps—but it is not sufficient. Power management broadly refers to the generation and control of regulated voltages required to operate an electronic system. It encompasses much more than just power supply design. Today's systems require pow ...
Invertec V205-T AC/DC
... excellent puddle control, sine wave for a traditional softer sounding arc, triangular wave to reduce the heat input into the weld at low amperages. ...
... excellent puddle control, sine wave for a traditional softer sounding arc, triangular wave to reduce the heat input into the weld at low amperages. ...
ADP1762 (Rev. A)
... Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operat ...
... Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operat ...
LTC3406/LTC3406-1.5/LTC3406-1.8
... OPERATIO (Refer to Functional Diagram) When the output is shorted to ground, the frequency of the oscillator is reduced to about 210kHz, 1/7 the nominal frequency. This frequency foldback ensures that the inductor current has more time to decay, thereby preventing runaway. The oscillator’s frequency ...
... OPERATIO (Refer to Functional Diagram) When the output is shorted to ground, the frequency of the oscillator is reduced to about 210kHz, 1/7 the nominal frequency. This frequency foldback ensures that the inductor current has more time to decay, thereby preventing runaway. The oscillator’s frequency ...
MAX17410 Dual-Phase, Quick-PWM Controller for IMVP6+ CPU Core Power Supplies General Description
... reduces input ripple current requirements and output voltage ripple while easing component selection and layout difficulties. The Quick-PWM control scheme provides instantaneous response to fast load current steps. Active voltage positioning reduces power dissipation and bulk output capacitance requ ...
... reduces input ripple current requirements and output voltage ripple while easing component selection and layout difficulties. The Quick-PWM control scheme provides instantaneous response to fast load current steps. Active voltage positioning reduces power dissipation and bulk output capacitance requ ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""