| 摘要 |
A device is described for the generation of drive signals for thyristors or power transistors in circuits for the energy supply of apparatuses and installations with regulated and/or adjustable direct voltages or direct currents. In systems with a master or controlling computer there serves as desired value giver a digital memory, which makes available the calculated desired values as a binary number on its output, while as actual-value giver there serves a binary counter which counts the beat impulses of the computer, in which system a comparison circuit on equality of the numbers triggers an impulse the time beginning of which corresponds to the ingate angle or its duration to the impulse width of a pulse-width modulated signal. A control device controls the reading of the desired values into the memory and of the actual values into the counter and synchronizes the impulses of the comparison circuit with synchronizing impulses derived from the mains voltage or from the beat impulses of the master or controlling computer.
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