NOVELTY - A signal generating apparatus (101) comprises a first signal generator configured to generate a time varying signal; and a second signal generator electrically coupled to the first signal generator configured to generate an output signal using the time varying signal, the output signal having a waveform containing a minimum voltage, a maximum voltage, a frequency, and a duty cycle; where the second signal generator comprises an output electrically coupled to an electrolysis device configured to provide the output signal to the electrolysis device.    USE - As a signal generating apparatus for providing electrical signal to electrolysis device for generation of hydrogen gas used in vehicle (claimed).    ADVANTAGE - The apparatus provides electrical signal comprises maximum voltage and minimum voltage, thus avoids the generation of oxygen at the hydrogen electrode of the electrolysis device.    DETAILED DESCRIPTION - A signal generating apparatus (101) comprises a first signal generator configured to generate a time varying signal; a second signal generator electrically coupled to the first signal generator configured to generate an output signal using the time varying signal, the output signal having a waveform containing a minimum voltage, a maximum voltage, a frequency, and a duty cycle; where the second signal generator comprises an output electrically coupled to an electrolysis device configured to provide the output signal to the electrolysis device; and where the output signal is configured to be used by the electrolysis device to charge electrodes disposed in the electrolysis device in electrolytic formation of hydrogen and oxygen gasses from water; a third signal generator electrically coupled to the first signal generator configured to generate a second output signal. The waveform further comprises a pulse wave. INDEPENDENT CLAIMS are included for following:    (1) providing an electrical signal for an electrolysis device involving generating a time varying signal; generating an output signal using the time varying signal, where the output signal having a waveform comprising a minimum voltage, a maximum voltage, a frequency, and a duty cycle; providing the output signal to an electrolysis device; using the output signal to charge electrodes disposed in the electrolysis device in electrolysis of water into hydrogen and oxygen gasses; and    (2) a vehicle with a hydrogen gas injection system comprising a generator electrically coupled to an electrolysis device; and the electrolysis device coupled to an air intake manifold.    DESCRIPTION OF DRAWING(S) - The figure shows view of electrolysis system.    Apparatus (101)    Sensor (103)    Power supply (104)    Electrolysis device (106)    Manifold (110)