Boosting H-Bridge circuit

[fjpompeo]

Hi all,

I have a small toy car that runs with a 6V (4x1,5v) pack and would like to boost the main motor(6V x 100mA) H_bridge output stage the way I can drive a 12V motor (12V x 500mA). The controller is fitted inside a chip and I have no way to access internal components.

Very thank you and happy 2016,

Fernando - Call sign PU2PLL

 

[d123]

Hi there,

From 0.6W motor to a 6W motor. What can the 4*1.5V batteries provide in mAh? Maybe needs an external supplementary supply and external fets or bjts for the higher power h-bridge? Or a higher voltage battery (and mAh), which presumably could require voltage regulation for the original circuit.

The toy car may look more like Frankenstein or a Mad Max vehicle when finished.