CPC H05B 45/325 (2020.01) [G05B 23/0218 (2013.01); G09G 3/32 (2013.01); H05B 45/34 (2020.01); G09G 2310/0267 (2013.01); G09G 2320/0219 (2013.01)] | 17 Claims |
1. A light emitting diode (LED) matrix driver comprising:
a scan line switch coupled between a scan line terminal and a ground terminal;
a first voltage clamp coupled to the scan line switch and the scan line terminal, the first voltage clamp including:
an amplifier having an amplifier output and first and second amplifier inputs,
wherein the first amplifier input is coupled to a reference voltage terminal; and
a transistor coupled between the scan line terminal and the ground terminal and having a control terminal, wherein the control terminal is coupled to the second amplifier input and the amplifier output; and
a second voltage clamp coupled to the scan line terminal.
|