High-precision low-ripple low-voltage-drop linear charging circuit

• Main Authors: WEI HAORAN, LUO LIANG, WANG BINGXIA, JIN RUIYING
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• 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; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses a high-precision low-ripple low-voltage-drop linear charging circuit which comprises a power tube output module, a power tube control module, a 1/N current sampling module, a high-precision voltage clamping module, a current-to-voltage module, a constant-current feedback loop module, a constant-voltage feedback loop module, a loop gain adjusting module, a resistor R1 and a resistor R2. The invention has the advantages of high precision, low ripple and low voltage drop. 本发明公开了一种高精度低纹波低压降线性充电电路，包含功率管输出模块、功率管控制模块、1/N电流采样模块、高精度电压钳位模块、电流转电压模块、恒流反馈环路模块、恒压反馈环路模块、环路增益调节模块、电阻R1和电阻R2。本发明具有精度高、纹波低、压降低的优点。