2.3.3.13 Power Monitor

To monitor the power dissipated inside a device, a power monitor has been proposed by Diaz et al. [7]. The power monitor implemented in MINIMOS-NT is a four-terminal device with three input nodes, but only one output node as shown in Fig. 2.8. To calculate the dissipated power both the current flowing through the device and the applied voltage are needed. It can be used to model self-heating effects for devices which have not been equipped with proper models as e.g., SPICE models. In this case no derivatives of the device current with respect to the temperature are available. Fortunately, the influence on the convergence properties was found to be negligible in most cases. The stamp looks as follows

yx, y	$\varphi_{1}^{}$	$\varphi_{2}^{}$	$\varphi_{3}^{}$	I	$\vartheta$	f
n2				-1		I
n3				1		- I
I		1	-1			- V
$\vartheta$	- I	I		- V		P

Figure 2.8: Internal structure of the power monitor