На сайте 124189 инструкций общим размером 502.82 Гб , которые состоят из 6278654 страниц
Руководство пользователя LUNDAHL LL5402. Основные функции, характеристики и условия эксплуатации изложены на 1 странице документа в pdf формате.
Доступно к просмотру 1 страница. Рекомендуем вам скачать файл инструкции, поскольку онлайн просмотр документа может сильно отличаться от оригинала.
Tibeliusgatan 7 International Domestic S-761 50 NORRTALJE Phone +46 - 176 13930 0176-13930 SWEDEN Fax +46 - 176 13935 0176-13935 Audio Output Transformer LL5402 LL5402 is an audio output transformer for unbalanced drive, ideally used with mixed feedback drive circuits (see application example below). If primary pins 1 and 5 are connected to ground, the windings are arranged such that cold ends of the primary windings surround each secondary winding. This reduces the effect of capacitance between the primary and the secondary windings. Turns ratio: 2 + 2 : 1 + 1 Dims (Length x Width x Height above PCB (mm)): 43 x 28 x 21 Pin layout (viewed from component side) and winding schematics: 5 10 2 7 4 9 1 6 3 LL5402 4 9 2 (Top view) 7 1 6 5 10 3 Can + Core Spacing between pins: 5.08 mm (0.2") Spacing between rows of pins: 30.48 mm (1.2") Weight: 92 g Rec. PCB hole diameter: 1.5 mm Static resistance of each primary: 30 W Static resistance of each secondary: 7 W Leakage inductance of secondaries (sec. in series): 0.2 mH No-load impedance: >800 W @ 50 Hz, +20 dBU Optimum source impedance: Minus 15 W (See application below) Balance of output (according to IRT, source < 10 W , Load 600 W): > 60 dB Note! Performance figures below are obtained using mixed feedback drive circuits. (See application example).Otherwise use lowest possible source impedance. Distortion (connection as application example below, load 600 W) + 22 dBU 0.1% @ 50 Hz Frequency response (as below , load 600 W): 20 Hz -- 40 kHz +/- 0.3 dB Voltage loss across transformer (at midband with 600 W load): 0 dB Isolation between primary and secondary windings / between 4 kV / 2 kV windings and core: Application example with mixed feedback: (NOTE! This application was covered by a German patent DE 29 01 567 with application day 13.1.79. Qs far as we know the patent is expired) Cin Rin Rf _ 5 10 + NE5534 4 9 + 3 _ LL5402 2 7 1 6 Gain = Rf / Rin R Optimum R = Rp (Rin/Rf) where Rp is Cu resistance of prim. Select R for best THD at LF R020318