Electronic device including circuit configured to operate using boosted voltage

An electronic device comprising:

• an inductive element that generates an output signal based on a current;
• a transmitter circuit that outputs the current to the inductive element based on a supply voltage;
• and
• a charger circuit that boosts a voltage of a battery terminal to selectively output the supply voltage, such that a voltage level of the supply voltage is maintained to be equal to or higher than a reference level regardless of a voltage level of the voltage of the battery terminal, the reference level being higher than the voltage level of the voltage of the battery terminal, wherein
• the supply voltage output from the charger circuit is provided to the transmitter circuit through a charging input terminal based on the boosted voltage.

An electronic device comprising:

• a transmitter circuit that outputs a current based on a supply voltage;
• and
• an inductive element that generates an output signal based on the current, wherein:
• a voltage level of the supply voltage received in the transmitter circuit is maintained between a first reference level and a second reference level and each of the first reference level and the second reference level is higher than a voltage level of a battery voltage, and
• a level of the current output from the transmitter circuit to the inductive element varies between a positive peak level and a negative peak level and amplitudes of the positive peak level and the negative peak level vary between a first reference amplitude and a second reference amplitude.