Low-power voltage stabilizing circuit

• Main Authors: HOLZINGER MARKUS, PLATZER WILFRIED
• Format: Patent
• Language: Chinese; English
• Published: 02.12.2022
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

Techniques are described that can address the problem of low power when operating a device on a battery and alternatively on the output of a switched-mode regulator. In a low power mode, the voltage regulator circuit may be powered off, and the switch may connect an input voltage of the regulator (e.g., a battery) to the CPU. In addition, internal and/or external loads (e.g., voltage feedback resistors) may be switched off to further reduce power consumption. If the device begins to operate, the CPU may be switched off from an input voltage of the regulator (e.g., the battery), and switched to an output of the regulator. In this way, it can be ensured that the circuit consumes little power in the standby mode. 描述了可以解决当在电池上运行设备以及替代地在开关式稳压器的输出上运行时低功率问题的技术。在低功率模式下，稳压电路可以断电，并且开关可以将稳压器的输入电压(例如，电池)连接到CPU。此外，可以切断内部和/或外部负载(如，电压反馈电阻器)以进一步降低功耗。如果所述设备开始运行，则可以从所述稳压器的输入电压(例如，所述电池)切断所述CPU，以及切换到所述稳压器的输出。这样可以确保所述电路在待机模式下消耗很少的功耗。