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Variable frequency high power signal generator - produces four control signals for four transistors in each of several bridge circuits across load
Variable frequency high power signal generator - produces four control signals for four transistors in each of several bridge circuits across load
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机译：变频高功率信号发生器-跨负载的多个桥电路中的每个桥电路中的四个晶体管产生四个控制信号
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摘要
The variable frequency high power signal generator, for driving a loudspeaker, resistance heating or driving a vibrating table etc., consists of a control circuit producing sets of 4 control signals (C1-C4) for applying to the bases of the 4 transistor switches (6-9) in each of n bridges (21-2n) driving the load (3). The control circuit consists of a sinewave pilot generator whose rectified output is modulated to variable length pulses which are then passed to the network of gates that construct the 4 control signals. Each bridge has a transistor in one arm and is connected in series diagonally with the other bridges across the load.
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