Electrical stimulation device

An electrical stimulation device for electrically stimulating at least one target zone of an organism, comprising

• a control unit;
• and
• an electrical stimulation unit including:
• a frequency synthesizer which is coupled to the control unit and configured to generate a frequency signal;
• a summing amplifier which is coupled to the frequency synthesizer;
• a variable resistor which comprises a resistance and is coupled to the control unit and the summing amplifier;
• at least one first electrode and at least one second electrode, wherein the first electrode and the second electrode are coupled to the summing amplifier;
• a pulse generator which is coupled to the control unit and configured to generate a plurality of pulse signals, wherein the plurality of pulse signals include a first pulse wave signal and a second pulse wave signal, a time difference between the first pulse wave signal and the second pulse wave signal is at least 2 micro-seconds;
• and
• a differential amplifier which is coupled to the pulse generator and the summing amplifier, and configured to output a biphasic pulse signal according to the plurality of pulse signals,
• wherein the summing amplifier is configured to output an electrical stimulation signal according to the biphasic pulse signal, the frequency signal of the frequency synthesizer and the resistance of the variable resistor to impel the first electrode and the second electrode to generate an electric field, the electric field covers the target zone, and the electric field strength ranges from 100 V/m to 5000 V/m.