The recorder module applies the signal to the preamplifier’s non-inverted input and then
passes through the limiter which establishes the maximum left or right limits of the stylus, to avoid
breaking the recording tape. The power supply of the device contains mainly a convertor with an
output transformer and a reaction transformer powered either from a network through a downward
transformer followed by a rectifier and filter, or from an accumulator battery.
To comply with the rules of patient protection, the supply for the electrocardiograph’s
preamplifier is done floatingly according to the grounding null (Figure 2).
Figure 2.
passes through the limiter which establishes the maximum left or right limits of the stylus, to avoid
breaking the recording tape. The power supply of the device contains mainly a convertor with an
output transformer and a reaction transformer powered either from a network through a downward
transformer followed by a rectifier and filter, or from an accumulator battery.
To comply with the rules of patient protection, the supply for the electrocardiograph’s
preamplifier is done floatingly according to the grounding null (Figure 2).
Figure 2.