well i m designing a simple circuit in which a bulb is turned on and off by a simple household remote control. Normal remote control gives IR of 38 khz so i m using TSOP 1738, there is also an alternative of HRM 3800. Well i m having a problem that neither of them r working. When i press the remote, it doesn't give any voltage change whereas i want at least 4-5volts. Can anyone help me with this by providing some circuit for TSOP which works properly or have any idea, please share it with me.