Voltage controlling assemblies including variable resistance devices

摘要

Provided are voltage controlling assemblies that may be operable as clocks and/or oscillators. A voltage controlling assembly may include a comparator and a variable resistance device connected to one differential signal node of the comparator. The other node may be connected to a capacitor. Alternatively, no capacitors may be used in the assembly. During operation of the voltage controlling assembly, the variable resistance device changes its resistance between two different resistive states. The change from a low to a high resistive state may be associated with a voltage spike at the differential signal node of the comparator and trigger a response from the comparator. This resistance change may have a delay determining an operating frequency of the voltage controlling assembly. Specifically, the variable resistance device in the low resistive state may be kept for a period of time at a certain voltage before it switches into the high resistive state.

主权项

1. A voltage controlling assembly comprising:
a comparator having a first differential signal node and a second differential signal node; and a variable resistance device comprising a first conductive layer, a second conductive layer, and a variable resistance layer,
wherein the first conductive layer is operable as a first electrode of the variable resistance device and is electrically connected to the first differential signal node of the comparator,wherein the second conductive layer is operable as a second electrode of the variable resistance device and is electrically connected to a reference voltage source,wherein the variable resistance device is disposed between the first conductive layer and the second conductive layer and is configured to switch between a first resistive state and a second resistive state, andwherein a resistance of the variable resistance device in the first resistive state is less than a resistance of the variable resistance device in the second resistive state.