Feedback device and method for providing thermal feedback using the same

An electronic device comprising:

• a thermoelectric module comprising a plurality of thermoelectric groups and a contact surface, wherein the thermoelectric module is configured to contact with a body part of a user, transferring heat to the user or absorbing heat from the user, via the contact surface, wherein the contact surface comprises at least a first region and a second region, wherein each of the plurality of thermoelectric groups comprises a plurality of thermoelectric elements, and wherein the plurality of thermoelectric groups includes at least a first thermoelectric group placed on the first region and a second thermoelectric group placed on the second region;
• and
• a controller configured to control the plurality of thermoelectric groups individually by controlling an operation power applied to the thermoelectric module, and
• wherein the controller is configured to apply, during a first-time period, a first voltage to the first thermoelectric group to perform a heat absorbing operation, and apply, during a second-time period following the first-time period, a second voltage corresponding to the first voltage to the second thermoelectric group to perform the heat absorbing operation.