The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2025
Filed:
Apr. 25, 2023
Cypress Semiconductor Corporation, San Jose, CA (US);
Adrian Lin, Austin, TX (US);
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
A current-sink and method of using the same is provided for sinking transient load currents of a load coupled to a floating-rail. In one embodiment, the current-sink includes a latch system operable to receive a transient load current signal from the load and set a latch to apply a voltage to a gate of a current sinking switch. The current sinking switch includes a first source/drain (S/D) coupled to the floating-rail, and a second S/D coupled to ground, and is operable to sink the transient load current to provide a stable floating-rail voltage (V) on the floating-rail. Generally, the latch system further includes a dynamically biased comparator for comparing Vto a reference voltage and resetting the latch when a difference is less than a predetermined voltage. A dynamic bias circuit coupled to a latch output enables the comparator only while the transient load current is present.