2 results about "Extra-low voltage" patented technology

This invention relates to the field of circuit hardening technology, and provides a voltage-controlled oscillator (VCO) circuit and phase-locked loop (PLL) circuit that are resistant to single-event transients. Addressing the issue that traditional three-mode relaxation oscillator (VCO) circuits are unsuitable for low-voltage conditions, especially when the power supply voltage drops to around 0.8V, this invention employs six oscillation branches coupled into three large oscillation loop circuits to improve loop gain. Furthermore, by combining bias circuits, comparators, and voting circuits for each path, the problem of increasing nonlinearity is avoided. This achieves a combination of large oscillation loops, bias circuits, and a three-mode VCO architecture, resulting in a VCO circuit that maintains high-frequency stable operation under ultra-low voltage conditions such as 0.8V, thus achieving a single-event transient resistance effect, especially at low voltages of 0.8V.

The invention provides a polar region natural temperature difference-based TEG power generation circuit, a working method and a layout method, relates to the technical field of temperature difference power generation, is adaptive to low temperature difference and field unattended scenes, and supplies energy to a 5V / 0.1 W monitoring acquisition module. The circuit comprises a TEG thermoelectric power generation sheet, an ultra-low voltage energy acquisition module, an energy storage module, a voltage equalization circuit, a control module, a load switch module, a low temperature preheating module and a monitoring acquisition load which are electrically connected. Micro-temperature-difference electric energy efficient collection is achieved through an ultra-low voltage starting chip and a high-turn-ratio transformer, a low-temperature low-leakage series super capacitor is adopted for energy storage, pulse type work and a low-temperature preheating strategy are combined, and a thermoelectric collaborative PCB layout is matched, so that the problem that low-power collection cannot stably supply energy to a high-power load under the micro-temperature difference is solved; and the system can be widely applied to unattended environment monitoring scenes of polar regions, high altitudes and the like.