Circuit configuration for detecting idling of a load

Details Circuit configuration for detecting idling of a load Circuit configuration for detecting idling of a load

1996-09-18

1998-04-07

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327109, 327427, H03K 5153, H03K 17687

Patent

active

057368775

ABSTRACT:
In power switches, reports should be issued frequently when the load becomes high in impedance and the load current drops below a predetermined value. In the idling case, however, the voltage drop at the power switch is very low and therefore can only be measured with some inaccuracy. Accurate detection of the reduction in the load current is possible, if a resistor is connected parallel, in the ON-state, to the load path of the power switch. The resistance of the resistor is greater by a multiple than the resistance of the internal resistor of the load path of the power switch. A comparator compares the voltage dropping at the load path of the power switch and therefore at the resistor with a predetermined reference voltage, and it signals the dropping of the load current below a value defined by the ratio of the reference voltage and the resistance of the resistor.

REFERENCES:
patent: 4980576 (1990-12-01), Rossi et al.
patent: 5336946 (1994-08-01), Segaram et al.
patent: 5576648 (1996-11-01), Rossi et al.

Affiliated with

Also associated with

Rating

Circuit configuration for detecting idling of a load does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit configuration for detecting idling of a load, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit configuration for detecting idling of a load will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-16302