GNDA1+VSA2REFINA3HPSENSEA4HPDRIVEA5SDN#B1AC/DC#B2FRB3IAOUTB4+INB5LODC1RLD SDN#C2REFOUTC3RLDFBC4−INC5OUTD1OPAMP−D2OPAMP+D3SWD4RLDD5