instrument systems for electrical and electromagnetic exploration
... Primary power for these transmitters is 3-phase, 400 Hz, 120/208 VAC. Both the transmitter and the required motorgenerator are significantly smaller and more portable than they would other- wise be if powered by 3-phase 50/60 Hz AC power. The higher primary frequency (400 Hz) also results in current ...
... Primary power for these transmitters is 3-phase, 400 Hz, 120/208 VAC. Both the transmitter and the required motorgenerator are significantly smaller and more portable than they would other- wise be if powered by 3-phase 50/60 Hz AC power. The higher primary frequency (400 Hz) also results in current ...
An article for ozvalveamps on renovating PA amps
... gives an initial transient overshoot, and then settles to steady-state. The screenshot below shows the 440mA peak current limit conditions for a 5Y3GT diode, although the transient peak of about 1.5A is less than the 2.5A limit. The effective plate supply resistance Rs (also referred to as supply im ...
... gives an initial transient overshoot, and then settles to steady-state. The screenshot below shows the 440mA peak current limit conditions for a 5Y3GT diode, although the transient peak of about 1.5A is less than the 2.5A limit. The effective plate supply resistance Rs (also referred to as supply im ...
STUDY AND DESIGN OF ENLARGED AUTOMATED TEST STATION FOR GRID AUTOMATION CONTROL CABINETS
... system for distribution networks. With SCADA substations and remote controllable devices can be monitored and controlled from distance through local RTU (Remote Terminal Unit). The SCADA system must expand at the same time when the amount of IEDs increases in distribution networks. For that reason S ...
... system for distribution networks. With SCADA substations and remote controllable devices can be monitored and controlled from distance through local RTU (Remote Terminal Unit). The SCADA system must expand at the same time when the amount of IEDs increases in distribution networks. For that reason S ...
- Eddystone User Group
... (I.F.T.). L1 is typically a pi-wound inductor similar to a medium wave tuning coil. It is usually trimmed by a ferrite core threaded through the centre. The coil is resonated by C l , typically a silvered mica condenser of a hundred or so pico-farrads capacity. It may be that the roles are reversed ...
... (I.F.T.). L1 is typically a pi-wound inductor similar to a medium wave tuning coil. It is usually trimmed by a ferrite core threaded through the centre. The coil is resonated by C l , typically a silvered mica condenser of a hundred or so pico-farrads capacity. It may be that the roles are reversed ...
Expt. 5: Study of Operational Amplifiers Pin-Diagram of IC-741
... The frequency response of a low-pass filter is shown in Fig.1. The filter has a constant gain from 0 Hz to a high cut-off frequency fH. At fH the gain is down by 3 dB; after f > fH the gain decreases with an increase in input frequency at a rate of –20 dB per decade. The frequencies between 0 Hz an ...
... The frequency response of a low-pass filter is shown in Fig.1. The filter has a constant gain from 0 Hz to a high cut-off frequency fH. At fH the gain is down by 3 dB; after f > fH the gain decreases with an increase in input frequency at a rate of –20 dB per decade. The frequencies between 0 Hz an ...
TPS61161-Q1 数据资料 dataSheet 下载
... With a 40-V rated integrated switch FET, the TPS61161 is a boost converter that drives up to 10 LEDs in series. The boost converter runs at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allow for the use of small external components. The default white ...
... With a 40-V rated integrated switch FET, the TPS61161 is a boost converter that drives up to 10 LEDs in series. The boost converter runs at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allow for the use of small external components. The default white ...
MAX1582/MAX1582Y High-Efficiency Step-Up Converters for White LED Main and Subdisplay Backlighting General Description
... The MAX1582/MAX1582Y utilize 1MHz current-mode PWM control to allow small input and output capacitors and a small inductor, while minimizing ripple on the input supply and avoiding interference to sensitive circuitry in the equipment. Integrated overvoltage protection (27V for the MAX1582 and 18V fo ...
... The MAX1582/MAX1582Y utilize 1MHz current-mode PWM control to allow small input and output capacitors and a small inductor, while minimizing ripple on the input supply and avoiding interference to sensitive circuitry in the equipment. Integrated overvoltage protection (27V for the MAX1582 and 18V fo ...
Low Power Tips for CoolRunner Design Summary
... Historically, low power designs and CPLD devices have been mutually exclusive. Early PLDs, implemented on the bipolar processes, consumed hundreds of milliamperes during quiescent operation. Migration to the CMOS process has decreased power consumption, but most chip designers fabricate product term ...
... Historically, low power designs and CPLD devices have been mutually exclusive. Early PLDs, implemented on the bipolar processes, consumed hundreds of milliamperes during quiescent operation. Migration to the CMOS process has decreased power consumption, but most chip designers fabricate product term ...
6. Typical discrete input and output devices
... usually higher then that of the CPU. The output connections from the PLC can carry inference back to the CPU. For these reasons, a typical PLC output module: provides electric (galvanic) isolation between the field output circuit and the CPU; converts the voltage level required by the output fie ...
... usually higher then that of the CPU. The output connections from the PLC can carry inference back to the CPU. For these reasons, a typical PLC output module: provides electric (galvanic) isolation between the field output circuit and the CPU; converts the voltage level required by the output fie ...
MAX8545/MAX8546/MAX8548 Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit General Description
... The MAX8545/MAX8546/MAX8548 are voltage-mode pulse-width-modulated (PWM), step-down DC-DC controllers ideal for a variety of cost-sensitive applications. They drive low-cost n-channel MOSFETs for both the high-side switch and synchronous rectifier, and require no external current-sense resistor. The ...
... The MAX8545/MAX8546/MAX8548 are voltage-mode pulse-width-modulated (PWM), step-down DC-DC controllers ideal for a variety of cost-sensitive applications. They drive low-cost n-channel MOSFETs for both the high-side switch and synchronous rectifier, and require no external current-sense resistor. The ...
ReadiLED™ Installation Instructions
... Do not mount near gas or electric heaters. Equipment should be mounted in locations and at heights where it will not readily be subjected to tampering by unauthorized personnel. The use of accessory equipment not recommended by the manufacturer may cause an unsafe condition. Do not use this equipmen ...
... Do not mount near gas or electric heaters. Equipment should be mounted in locations and at heights where it will not readily be subjected to tampering by unauthorized personnel. The use of accessory equipment not recommended by the manufacturer may cause an unsafe condition. Do not use this equipmen ...
Linn Klimax 500 Twin Power Amplifier
... In most power amplifiers, the power supply comprises a large transformer, a rectifier and reservoir capacitors, which are often as large as the transformer itself. The highest performance amplifiers also have voltage regulators which maintain the power supplied to the amplifier circuitry at a consta ...
... In most power amplifiers, the power supply comprises a large transformer, a rectifier and reservoir capacitors, which are often as large as the transformer itself. The highest performance amplifiers also have voltage regulators which maintain the power supplied to the amplifier circuitry at a consta ...
AP65550 Description Pin Assignments
... output current decreases form heavy load condition, the inductor current decreases as well, eventually comes close to zero current, which is the boundary between CCM and DCM. The low side MOSFET is turned off when the inductor current reaches zero level. The load is provided only by output capacitor ...
... output current decreases form heavy load condition, the inductor current decreases as well, eventually comes close to zero current, which is the boundary between CCM and DCM. The low side MOSFET is turned off when the inductor current reaches zero level. The load is provided only by output capacitor ...
Safer Electro Play ELECTRICAL TERMS
... *1 & 2 In the US, all electrical service is based on a ‘grounded’ neutral system. Starting at the generating plant, then on to substations, to both pole and ground mounted transformers, on to homes around the US our electrical system consists of ‘hot’ wires/lines, a ‘neutral’ (or common) wire, and a ...
... *1 & 2 In the US, all electrical service is based on a ‘grounded’ neutral system. Starting at the generating plant, then on to substations, to both pole and ground mounted transformers, on to homes around the US our electrical system consists of ‘hot’ wires/lines, a ‘neutral’ (or common) wire, and a ...
Alternating current
Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).