Low-power-consumption hybrid power supply modulator

• Main Authors: LENG YONGQING, ZHOU YINHAO, QIU XIN, CUI XINGLI, ZHAO JUNCHAO, WU KAI, JING YOUBO
• Format: Patent
• Language: Chinese; English
• Published: 28.03.2023
• Subjects: AMPLIFIERS; 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; BASIC ELECTRONIC CIRCUITRY; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; PULSE TECHNIQUE; RESONATORS

The invention discloses a low power consumption hybrid power supply modulator, which comprises a power amplifier, a linear stage, a switch stage, a hysteresis comparator and a current detection unit, the linear stage comprises an output end and a sampling end, the output end of the linear stage is electrically connected with the power amplifier, the sampling end of the linear stage is electrically connected with the current detection unit, and the hysteresis comparator is electrically connected with the current detection unit. The current detection unit is electrically connected with the input end of the hysteresis comparator, the output end of the hysteresis comparator is electrically connected with the switch stage, the switch stage is electrically connected with the power amplifier, and random high-frequency components appearing in the switching frequency are filtered out after entering the hysteresis comparator and being filtered by a filter. The influence of the high-frequency part on the switch part is