  The end point energies of nuclear $\beta$ decays have been measured with a
segmented planar Ge LEPS detector using both singles and coincidence
techniques. The $\beta - \gamma$ coincidence has been performed with a
segmented planar Ge LEPS and a single 10$\%$ HPGe detector. The $\gamma$ ray
and $\beta$ particle responses of the Segmented planer Ge LEPS detector were
studied using monte carlo simulation code GEANT3. The experimentally obtained
$\beta$ spectrum was in reasonably good agreement with the simulation results.
The experimental end point energies are determined with substantial accuracy
for some of the known $\beta$ decays in $^{106}$Rh, $^{210}$Bi and $^{90}$Y.
The end point energies corresponding to three weak branches in $^{106}$Rh
$\rightarrow$ $^{106}$Pd decay has been measured for the first time.
