The PSM1700 and PSM1735 feature ground referenced generators, as a result there is a requirement to isolate the injected perturbation signal from ground so that the feedback loop is not shorted to the ground plane. This action is performed by an injection transformer and N4L have designed numerous injection transformers to meet a range of frequencies and voltages.
Model Frequency Range
Standard Injection Transformer 10Hz to 200kHz
HF Injection Transformer 500Hz to 35MHz
HV Injection Transformer 5Hz to 15MHz
Low Frequency Injection DC to 100kHz