
MP1470 - Monolithic Power System
... The input current to the step-down converter is discontinuous, and therefore requires a capacitor to both supply the AC current to the step-down converter and maintain the DC input voltage. For the best performance, use low ESR capacitors, such as ceramic capacitors with X5R or X7R dielectrics and s ...
... The input current to the step-down converter is discontinuous, and therefore requires a capacitor to both supply the AC current to the step-down converter and maintain the DC input voltage. For the best performance, use low ESR capacitors, such as ceramic capacitors with X5R or X7R dielectrics and s ...
Limits for Voltage Unbalance in the Electricity Supply System
... in relation to the negative phase sequence component of the supply voltage since this is considered the most relevant with respect to interference to equipment. This standard implies that if the magnitude of the negative phase sequence component is within 2% of the positive phase sequence component ...
... in relation to the negative phase sequence component of the supply voltage since this is considered the most relevant with respect to interference to equipment. This standard implies that if the magnitude of the negative phase sequence component is within 2% of the positive phase sequence component ...
FAN4800AU/CU PFC/ PWM Controller Combination FAN48 00AU/CU —
... Because the PWM stage generally uses a forward converter, it is necessary to limit the maximum duty cycle at 50%. To have a small tolerance of the maximum duty cycle, a frequency divider with toggle flip-flops is used, as illustrated in Figure 25. The operation frequency of PFC and PWM stage is 1/4 ...
... Because the PWM stage generally uses a forward converter, it is necessary to limit the maximum duty cycle at 50%. To have a small tolerance of the maximum duty cycle, a frequency divider with toggle flip-flops is used, as illustrated in Figure 25. The operation frequency of PFC and PWM stage is 1/4 ...
DUAL OUTPUT POWER SUPPLY Agilent MODEL
... This product is a Safety Class I instrument, which means that it is provided with a protective earth ground terminal. This terminal must be connected to an ac source that has a 3-wire ground receptacle. Review the instrument rear panel and this manual for safety markings and instructions before oper ...
... This product is a Safety Class I instrument, which means that it is provided with a protective earth ground terminal. This terminal must be connected to an ac source that has a 3-wire ground receptacle. Review the instrument rear panel and this manual for safety markings and instructions before oper ...
SP3243E 数据资料DataSheet下载
... The SP3243E products are 3 driver/5 receiver RS-232 transceiver solutions intended for portable or hand-held applications such as notebook and palmtop computers. The SP3243E includes one complementary receiver that remains alert to monitor an external device's Ring Indicate signal while the device i ...
... The SP3243E products are 3 driver/5 receiver RS-232 transceiver solutions intended for portable or hand-held applications such as notebook and palmtop computers. The SP3243E includes one complementary receiver that remains alert to monitor an external device's Ring Indicate signal while the device i ...
LM2595 SIMPLE SWITCHER Power Converter 150 kHz 1A Step
... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absol ...
... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absol ...
Multi-Output Power Supplies with VCOM Amplifier MAX17126/MAX17126A General Description
... a high-voltage switch control block. The MAX17126/ MAX17126A can operate from input voltages from 8V to 16.5V and is optimized for an LCD TV panel running directly from 12V supplies. The step-up and step-down switching regulators feature internal power MOSFETs and high-frequency operation allowing t ...
... a high-voltage switch control block. The MAX17126/ MAX17126A can operate from input voltages from 8V to 16.5V and is optimized for an LCD TV panel running directly from 12V supplies. The step-up and step-down switching regulators feature internal power MOSFETs and high-frequency operation allowing t ...
MAX8728 Low-Cost, Multiple-Output Power Supply for LCD Monitors/TVs General Description
... and monitors. It includes step-down and step-up regulators, positive and negative charge pumps, and a dualmode, logic-controlled high-voltage switch control block. The MAX8728 can operate from input voltages from 7V to 13.2V and is optimized for LCD TV panel and LCD monitor applications running dire ...
... and monitors. It includes step-down and step-up regulators, positive and negative charge pumps, and a dualmode, logic-controlled high-voltage switch control block. The MAX8728 can operate from input voltages from 7V to 13.2V and is optimized for LCD TV panel and LCD monitor applications running dire ...
Electronics Lab Manual
... or current through the device is proportional to the “input” or voltage across the device over a broad range and their I-V curves obey Ohm’s law: V = IR. ...
... or current through the device is proportional to the “input” or voltage across the device over a broad range and their I-V curves obey Ohm’s law: V = IR. ...
Influence of the source impedance on the breakdown behaviour of
... and breakdown process can initiate from various predischarges. A determined berakdown voltage always corresponds to the various possible pre-discharges. Mixed distribution can therefore occur in the transition range, depending on the breakdown frequency or breakdown probability [6, 14, 151. F i g. 4 ...
... and breakdown process can initiate from various predischarges. A determined berakdown voltage always corresponds to the various possible pre-discharges. Mixed distribution can therefore occur in the transition range, depending on the breakdown frequency or breakdown probability [6, 14, 151. F i g. 4 ...
Atmel MSL3086 / MSL3088 8-String 60mA LED Drivers with Integrated FULL DATASHEET
... Boost Regulator Compensation Node: Connect the compensation network components from COMP to FB to compensate the boost regulator ...
... Boost Regulator Compensation Node: Connect the compensation network components from COMP to FB to compensate the boost regulator ...
TwecoAEB Inverter Arc Welder 300 GMS CC-CV 0-2371_AA
... Replace any cracked or damaged insulating parts. Shut down welding power source before touching electrode, wire drive assembly, welding wire, wire reel, or any metal parts in contact with the welding wire. Exposed hot conductors or other bare metal in the welding circuit or in ungrounded, electrical ...
... Replace any cracked or damaged insulating parts. Shut down welding power source before touching electrode, wire drive assembly, welding wire, wire reel, or any metal parts in contact with the welding wire. Exposed hot conductors or other bare metal in the welding circuit or in ungrounded, electrical ...
Infineon Power LED Driver
... LBO for the TLD5095/98 ICs also depends on the current loop stability and the value of the current sensing resistor RCS that senses the current through the inductor. All the equations required for this purpose are furnished in Chapter 2.4. STEP 5: Calculation and Selection of Output Capacitor - COUT ...
... LBO for the TLD5095/98 ICs also depends on the current loop stability and the value of the current sensing resistor RCS that senses the current through the inductor. All the equations required for this purpose are furnished in Chapter 2.4. STEP 5: Calculation and Selection of Output Capacitor - COUT ...
BD95601MUV-LB
... It is recommended that 10μF bypass capacitor be used to compensate for peak current during the FET on/off transition. This is the ground pin for High-side FET. The maximum absolute rating is 30V from ground. This is the pin to drive the gate of the High-side FET. The status of the switching swings b ...
... It is recommended that 10μF bypass capacitor be used to compensate for peak current during the FET on/off transition. This is the ground pin for High-side FET. The maximum absolute rating is 30V from ground. This is the pin to drive the gate of the High-side FET. The status of the switching swings b ...
Multi-Output Power Supplies with VCOM Amplifier and High
... The MAX17126B generates all the supply rails for thinfilm transistor liquid-crystal display (TFT LCD) TV panels operating from a regulated 12V input. They include a step-down and a step-up regulator, a positive and a negative charge pump, an operational amplifier, a highaccuracy high-voltage gamma r ...
... The MAX17126B generates all the supply rails for thinfilm transistor liquid-crystal display (TFT LCD) TV panels operating from a regulated 12V input. They include a step-down and a step-up regulator, a positive and a negative charge pump, an operational amplifier, a highaccuracy high-voltage gamma r ...
BD9428
... The N pin is used to output power to the external NMOS gate driver for the DC/DC converter in the amplitude range of approx. 0 to REG100. ON resistances is 5Ω (Typ.) in source (H side), 3Ω (Typ.) in sink (L side). Frequency setting can be made with a resistor connected to the RT pin. For details of ...
... The N pin is used to output power to the external NMOS gate driver for the DC/DC converter in the amplitude range of approx. 0 to REG100. ON resistances is 5Ω (Typ.) in source (H side), 3Ω (Typ.) in sink (L side). Frequency setting can be made with a resistor connected to the RT pin. For details of ...
AP3591 Description A Product Line of
... If the DEM mode is selected, the AP3591 automatically reduces the switching frequency under a light load condition to get high efficiency. When the output current decreases and heavy load condition is formed, the inductor current decreases as well, and eventually comes close to zero current, which i ...
... If the DEM mode is selected, the AP3591 automatically reduces the switching frequency under a light load condition to get high efficiency. When the output current decreases and heavy load condition is formed, the inductor current decreases as well, and eventually comes close to zero current, which i ...
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.""