TH15027A - An overload detector circuit and an electric field therapist comprising such circuits. - Google Patents

Abstract

One type of electric field therapy device that includes An overload detection circuit that includes a detectable source for setting a proportional reference to the input voltage at the power source input into the therapeutic main body. With an electric field and give a sensible value proportional to the main body's output circuit current. And comparator for reference and detectable inputs The overload detection circuit generates a controlled output from the comparator when the detectable value at the input into the comparator becomes greater than the reference value. Preventive routes, such as alarm routes and supply stop routes, are activated by this output signal. Such a protective route is triggered only when the detected value continuously exceeds the reference value for a predetermined time.

Claims (5)

1. The over-load detection circuit for the electrophysiological device consists of a reference signal generator for generating a reference signal that is proportional to the input voltage of the field therapist, a signal generator. Detectable for generating a detectable signal proportional to the current in the circuit's output, a comparator for comparing the reference signal to the detectable signal, an overload detector for generating. Control signal output When the detectable signal is input into the comparator is greater than that of the reference signal, and the timing device allows the output of the control signal output only when the detected signal is. Is greater than the continuous reference signal for a time longer than the predetermined interval only. 2. Overload detection circuit as set out in Clause No. 1 where physical properties selected from electric current temperature and light are used to carry reference and detectable signals 3. Overload circuit as defined in claim 1, where the reference signal and the captured signal are generated as voltage. 4. The overload detection circuit as specified in Clause 1, Claim No. 2 or Claim No. 3. Such as alarm and stop devices to stop supplying power to the machine. The protection device operates by means of a control output signal generated by the comparator. 5. The electric field therapist consists of an overload detection circuit as described in Clause 1 to 4 of Clause 4.