Pulse Transformers

Pulse transformers are used in radar transmitters for high-power main video pulse generation and low-power switch tube triggering.

Pulse transformers are critical for matching the voltage and impedance of pulse forming networks to that of R.F. power tubes such as klystrons, magnetrons, traveling wave tubes, and crossed field amplifiers. Pulse transformers usually include a filament transformer for the tube. For this, SorA Power employs one of three circuit designs:
1. Bifilar pulse transformer secondary winding with a filament transformer mounted at the low-voltage end.

2. Bifilar pulse transformer secondary winding with a filament transformer mounted at the high-voltage end.

3. Monofilar pulse transformer secondary winding with a low-capacitance filament transformer, insulated for full pulse voltage, in shunt with the pulse transformer secondary.

Additionally, special pulse shaping devices are incorporated when it is necessary to control the rate of voltage rise. Current transformers for measuring R.F. power tube current and or voltage test points can also be provided. SorA Power's custom-designed pulse transformers meet the requirements of MIL-T-27 and are 100 percent performance tested for induced voltage and pulse wave shape parameters. Each is operated in a test modulator with a pulse source and load simulating the R.F. power tube for each application.