Patent ID: 6388497
Filing Date: 2002-05-14
Classification: H03K

Abstract:
A circuit arrangement comprising means for preventing a change of each of two preset states of a control member (102) during resetting of a controller (100) for setting the preset states of the control member, said means for preventing said change of each of said two preset states being connected between at least one terminal (P) of said controller (100) and at least one input of said control member (102) and including means for generating a second signal to control said control member according to a level of a first signal appearing at said at least one terminal (P) of said controller (100);wherein said means for generating said second signal comprises a component (101, 302) for generating said second signal to control said control member, said component (101, 302) having an output for said second signal connected with said at least one input of said control member (102), and a feedback element (105, 105a) connecting said output of said component (101, 302) with said at least one terminal (P) of the controller (100) to feed back said second signal to the at least one terminal (P) of the controller (100), wherein said feedback element has sufficiently high impedance so that said change each of said two preset states may be initiated by said controller, except during said resetting of said controller.