Unregulated 60-mA Charge-Pump Voltage
... The TPS6040x is a family of devices that generate an unregulated negative output voltage from an input voltage ranging from 1.6 V to 5.5 V. The devices are typically supplied by a preregulated supply rail of 5 V or 3.3 V. Due to its wide input voltage range, two or three NiCd, NiMH, or alkaline batt ...
... The TPS6040x is a family of devices that generate an unregulated negative output voltage from an input voltage ranging from 1.6 V to 5.5 V. The devices are typically supplied by a preregulated supply rail of 5 V or 3.3 V. Due to its wide input voltage range, two or three NiCd, NiMH, or alkaline batt ...
MAX796/MAX797/MAX799 Step-Down Controllers with Synchronous Rectifier for CPU Power _______________General Description
... Unique bootstrap circuitry drives inexpensive N-channel MOSFETs, reducing system cost and eliminating the crowbar switching currents found in some PMOS/NMOS switch designs. The MAX796/MAX799 are specially equipped with a secondary feedback input (SECFB) for transformer-based dual-output applications ...
... Unique bootstrap circuitry drives inexpensive N-channel MOSFETs, reducing system cost and eliminating the crowbar switching currents found in some PMOS/NMOS switch designs. The MAX796/MAX799 are specially equipped with a secondary feedback input (SECFB) for transformer-based dual-output applications ...
MAX1534 High-Efficiency, Triple-Output, Keep-Alive Power Supply for Notebook Computers General Description
... cycle. This DC-to-DC converter pulses as needed to maintain regulation, resulting in a variable switching frequency that increases with the load. This eliminates the high supply currents associated with conventional constant-frequency pulse-width-modulation (PWM) controllers that switch the MOSFET u ...
... cycle. This DC-to-DC converter pulses as needed to maintain regulation, resulting in a variable switching frequency that increases with the load. This eliminates the high supply currents associated with conventional constant-frequency pulse-width-modulation (PWM) controllers that switch the MOSFET u ...
Medium Voltage Switching Transient Induced Potential
... of the PT failures experienced here. In summary, on the previous data center project, the authors performed an engineering analysis at their facility to simulate the problem observed at the present jobsite. In the previous report, the authors stated “We are very much aware of how vacuum breaker indu ...
... of the PT failures experienced here. In summary, on the previous data center project, the authors performed an engineering analysis at their facility to simulate the problem observed at the present jobsite. In the previous report, the authors stated “We are very much aware of how vacuum breaker indu ...
power quality: harmonics in power systems
... based on the harmonic characteristics of the loads where the power is applied. According to the nature of the single tuned filter, the filtering needs to start at the lowest harmonic frequency generated by the load. In this design that is the fifth harmonics. The filter will be tuned little below th ...
... based on the harmonic characteristics of the loads where the power is applied. According to the nature of the single tuned filter, the filtering needs to start at the lowest harmonic frequency generated by the load. In this design that is the fifth harmonics. The filter will be tuned little below th ...
Recovery of dielelectric strength of expulsion fuses after arc current
... high voltages of 6.6 kV and 3.3 kV in Japan, a high voltage cutout refers to the switching device consisting of the expulsion fuse and the cutout which can open the circuit within normal service conditions. Most of them are mainly used for protection of lines and high voltage distribution transforme ...
... high voltages of 6.6 kV and 3.3 kV in Japan, a high voltage cutout refers to the switching device consisting of the expulsion fuse and the cutout which can open the circuit within normal service conditions. Most of them are mainly used for protection of lines and high voltage distribution transforme ...
AN9800: Total Power Conversion Solutions for Computer
... OFF and ON resets the protection circuitry. The linear regulator outputs employ a different method of over-current detection. Given the relatively large rDS(ON) of the pass devices, a short-circuit condition usually translates into a dip in the output voltage. If the output voltage (as sensed at the ...
... OFF and ON resets the protection circuitry. The linear regulator outputs employ a different method of over-current detection. Given the relatively large rDS(ON) of the pass devices, a short-circuit condition usually translates into a dip in the output voltage. If the output voltage (as sensed at the ...
AP65552 - Diodes Incorporated
... The internal counter is incremented when OCP is triggered. After sixteen sequential cycles, the internal OCL (Overcurrent Logic) threshold is set to a lower level, reducing the available output current. When a switching cycle occurs where the switch current is below the lower OCL threshold, the coun ...
... The internal counter is incremented when OCP is triggered. After sixteen sequential cycles, the internal OCL (Overcurrent Logic) threshold is set to a lower level, reducing the available output current. When a switching cycle occurs where the switch current is below the lower OCL threshold, the coun ...
LT1246/LT1247 - 1MHz Off-Line Current Mode PWM and DC/DC
... been reduced to less than 250 A. Cross-conduction current spikes in the totem pole output stage have been eliminated, making 1MHz operation practical. Several new features have been incorporated. Leading edge blanking has been added to the current sense comparator. This minimizes or eliminates the f ...
... been reduced to less than 250 A. Cross-conduction current spikes in the totem pole output stage have been eliminated, making 1MHz operation practical. Several new features have been incorporated. Leading edge blanking has been added to the current sense comparator. This minimizes or eliminates the f ...
Single-stage unity power factor based electronic ballast
... which supplies the lamp a line frequency current of 50/60 Hz, the electronic ballast provides the lamp 20–100 kHz frequency current using an inverter. Because of the relatively high switching frequency of the electronic ballast, the gas in the discharge tube does not suffer from an appreciable deion ...
... which supplies the lamp a line frequency current of 50/60 Hz, the electronic ballast provides the lamp 20–100 kHz frequency current using an inverter. Because of the relatively high switching frequency of the electronic ballast, the gas in the discharge tube does not suffer from an appreciable deion ...
Basic Characteristics Data
... Please note that devices inside the power supply might fail when voltage of more than rated output voltage is applied to output terminal of the power supply. This could happen when the customer tests the overvoltage performance of the unit. To check the function of overvoltage protection, adjust the ...
... Please note that devices inside the power supply might fail when voltage of more than rated output voltage is applied to output terminal of the power supply. This could happen when the customer tests the overvoltage performance of the unit. To check the function of overvoltage protection, adjust the ...
General technical information
... For frequencies well below the natural resonant frequency (LS, VL ), due to the ESR the phase shift between voltage and current is slightly less than 90°. The difference between the phase angle θ and 90° is the defect angle δ, which is measured through the dissipation factor tan δ, i.e. the ratio o ...
... For frequencies well below the natural resonant frequency (LS, VL ), due to the ESR the phase shift between voltage and current is slightly less than 90°. The difference between the phase angle θ and 90° is the defect angle δ, which is measured through the dissipation factor tan δ, i.e. the ratio o ...
9550 Onyx II - instructions for use - BOC e
... to alert you to changes in pulse quality that may affect the readings: green indicates a good pulse signal, yellow indicates a marginal pulse signal, and red indicates an inadequate pulse signal. Activate the Onyx II by inserting the patient’s index finger into the unit. The Onyx II detects the inse ...
... to alert you to changes in pulse quality that may affect the readings: green indicates a good pulse signal, yellow indicates a marginal pulse signal, and red indicates an inadequate pulse signal. Activate the Onyx II by inserting the patient’s index finger into the unit. The Onyx II detects the inse ...
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.""