File:Pulse Step Modulator simplified block diagram.svg
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DescriptionPulse Step Modulator simplified block diagram.svg |
English: Simplified block diagram of a Pulse Step Modulator (PSM) used e.g. in high power AM modulators and short wave radio transmitters The PSM consist of N series-connected modules. In the block diagram only four modules in different colors shown, for simplicity. Typical PSM modulators consist of 32 up to 64 modules in series. Each module consisting of
The output voltage URl is equal on all modules. With switch S the voltage per module can be switched to the output or not. If switch S in a module is open, the diode D provides a current path for the output current of the other modules in series with a closed switch S. The output voltage URl can be controlled stepwise, shown on the right side in the colorized timing diagrams. In the optimized version (bottom on the right) with equal load on all modules the module with the longest on time (for example the yellow module) is switched off first. |
Date | 7 June 2015 (upload date) |
Source | Own work |
Author | wdwd |
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current | 16:40, 7 June 2015 | 980 × 780 (35 KB) | Wdwd (talk | contribs) | == {{int:filedesc}} == {{Information |Description={{en|Simplified block diagram of a ''Pulse Step Modulator'' (PSM) used e.g. in high power AM modulators and short wave radio transmitters<br/>The PSM consist of N series-connected modules. In the block... |
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