Found in a documentation from the 90's, this circuit uses only one integrated circuit. The resistors in series with the LEDs depend on the power that can be between 5 and 12 V.
March 2017 - Texas Instruments is already making available through Mouser Electronics the LP5907 an...
April 2017 - New Texas Instruments DRV8x brush motor drivers for 1.7 to 8 A currents and voltages...
This circuit was obtained in a 1994 Electronics Now. The circuit generates signals modulated in...