class B) than the class B operating point (resp. If the class AB operating point is closer to the class A operating point (resp. The choice of its location depends on the desired levels of efficiency and linearity. Alongside the input gain controls are green LED status lights to show power, signal sensed, parallel mode, and bridged mode, with red LEDs to warn of clipping and yellow LEDs to show when amp protection is engaged. Class AB amplifiers can be biased by choosing an operating point along this blue line, excluding the class A and class B biasing points. The front panel of the amplifier features input vents for cooling, along with latching power switch and rotary input gain controls.
POWER AMPLIFIER CLASS SERIES
A voltage gain of 26dB is preset to the middle position of the input gain switch on all XS series amplifiers. Available switches include ground lift, limiter, mode switch to select between stereo, parallel mode, or bridged mode and an input gain adjustment that allows the engineer to adjust the input sensitivity of the amplifier. AC power is switchable between 115V and 230V. The rear facing panel hosts all I/O connectivity along with mains AC input via IEC connector, air vent, and switching. Accordingly, to ensure long battery life it should be as efficient as possible. The RF power amplifier is one of the major current consumption areas.
One of the main considerations for the RF power amplifier design in any mobile phone is its efficiency. Cooling is standard on XS series amplifiers with the XS 200 utilising a standard convection model, with the XS 400 and XS 700 using a low noise fan. GSM power amplifier design considerations. Soft start, short circuit, DC, temperature and over current protection is standard on all models. Outputs for channel A and B are by way of Speakon compatible connector or binding posts. These two-channel amplifiers have input options of single balanced 3-pin XLR, balanced 6.3mm jack, or unbalanced RCA phono per channel. With 1U rackmount forms these Class D amplifiers also offer bridged, stereo, and parallel modes along with soft start, short circuit temperature and DC protection. zChose class A: I DC I MAX/2 18 mA (18 mA insignificant compared to 2.33 A) Stage 2: Gain 10 dB P OUT 25 dBm zR L2 19. LD Systems XS series amplifiers have been designed for small to medium live or installed environments. Categories By brand New products Audio and data connectors Video and RF connectors Power connectors, distribution and batteries Connection panels and stageboxes Fibre optic cables, connectors and interfaces Cable assemblies, patchcords and leads Cables Cabling accessories and tools Bags and cases Racks and enclosures Rack accessories and hardware Lights, clocks, furniture, fittings and equipment supports Drives, memory, media, labelling and sound effects Microphones Radio Microphones Microphone supports, amplifiers, powering and accessories Headphones, headsets, earpieces, amplifiers and wireless systems Hearing protection and noise control Record, replay and radio receivers Audio interfacing Video interfacing, processing, monitoring and camera accessories Audio mixers and processing Amplification Loudspeakers and audio monitoring Test and measurement Communications, conferencing and datacoms Assistive Listening Index By brand Index New products Special offers Clearance list
0 kommentar(er)
