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The following table can be used to assist in the selection other suitable transistors. The table shows the peak values (derived from simulation) of voltage, current and power in each transistor for a 1996 design with +/- 22V supply rails and a quiescent current of 2A. The simulations were run using 4, 8 and 16 ohm resistive loads and full-load figures were checked with source voltages set to give the maximum (non-clipping) output and with source frequencies of both 50Hz and 1kHz. The maximum figures obtained in the simulations are included in Table 2. Note, the maximum figures for a 1969 design will be lower as the power output is less if the original article is adhered to. When selecting alternative devices, an allowance must be made to provide a factor of safety. I suggest as a minimum that the voltage and current be multiplied by a factor of 1.5 and the power by a factor of 2.
http://www.tcaas.btinternet.co.uk/jlhtrans.htm
根据老外的测试来看,还是推荐电流在1.5a 到2a 之间为好。 |
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