Charging circuit, charging device, and capsule endoscope charging system

• Main Authors: CAO TINGHUI, ZHOU PAN, NIE YUHONG, CHEN YUNWEN
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2022
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DIAGNOSIS; ELECTRICITY; GENERATION; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses a charging circuit, a charging device and a capsule endoscope charging system, and the charging circuit comprises an electric energy input end, a sampling control circuit, a comparison circuit, a pulse generation circuit and a power supply circuit. The electric energy input end is sequentially connected with the sampling control circuit and the power supply circuit; the polarity control end of the power supply circuit is connected with the pulse output end of the pulse generation circuit and is configured to switch the charging polarity direction under the action of a pulse signal; the comparison circuit comprises a first comparison branch, and the first comparison branch is connected with the sampling output end of the sampling control circuit through a sampling input end, is connected with the limiting input end of the pulse generation circuit through a first comparison output end, and is configured to control the pulse generation circuit to output a constant electric signal when the