Electrical apparatus and verification method for battery module thereof
First Claim
1. An electrical apparatus, comprising:
- a battery module, having a verification circuit and an identification resistor, wherein the identification resistor is coupled to a first reference voltage; and
a battery verification module, having a reference resistor coupled to a second reference voltage and further comprising;
a main processor, coupled to an end of the reference resistor that is not coupled to the second reference voltage;
a first auxiliary processing module, coupled to the main processor; and
a first voltage dividing resistor, coupled on a coupled path between the first auxiliary processing module and the main processor, wherein a resistance of the first voltage dividing resistor is smaller than a resistance of the reference resistor,wherein when the battery module is connected to the battery verification module, the reference resistor and the identification resistor are serially connected between the first reference voltage and the second reference voltage, the battery verification module obtains a type information of the battery module according to a voltage on a coupled point between the reference resistor and the identification resistor, the battery verification module transmits a verification request to the verification circuit to allow the verification circuit to transmit a verification signal to the battery verification module through a coupled path between the reference resistor and the identification resistor.
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Abstract
An electrical apparatus including a battery module and a battery verification module is disclosed. The battery module has a verification circuit and an identification resistor. When the battery module is connected to the battery verification module, the battery verification module obtains a type information of the battery module according to the voltage level on a coupled point between a reference resistor and the identification resistor. The battery verification module transmits a verification request to the verification circuit to allow the verification circuit to transmit a verification signal to the battery verification module through a coupled path between the reference resistor and the identification resistor. The reference resistor is built in the battery verification module.
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Citations
18 Claims
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1. An electrical apparatus, comprising:
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a battery module, having a verification circuit and an identification resistor, wherein the identification resistor is coupled to a first reference voltage; and a battery verification module, having a reference resistor coupled to a second reference voltage and further comprising; a main processor, coupled to an end of the reference resistor that is not coupled to the second reference voltage; a first auxiliary processing module, coupled to the main processor; and a first voltage dividing resistor, coupled on a coupled path between the first auxiliary processing module and the main processor, wherein a resistance of the first voltage dividing resistor is smaller than a resistance of the reference resistor, wherein when the battery module is connected to the battery verification module, the reference resistor and the identification resistor are serially connected between the first reference voltage and the second reference voltage, the battery verification module obtains a type information of the battery module according to a voltage on a coupled point between the reference resistor and the identification resistor, the battery verification module transmits a verification request to the verification circuit to allow the verification circuit to transmit a verification signal to the battery verification module through a coupled path between the reference resistor and the identification resistor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for verifying a battery module of an electrical apparatus, wherein the electrical apparatus has a battery verification module, the method comprising:
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reading a voltage on a coupled terminal of the battery verification module and the battery module, and obtaining a type information of the battery module according to the voltage level; transmitting a verification request to the verification circuit by using the battery verification module; transmitting a verification signal to the battery verification module according to the verification request through the coupled terminal of the battery verification module and the battery module by using the verification circuit supplying a pull-up voltage to the coupled terminal of the battery verification module and the battery module by using an auxiliary processing module of the battery verification module; and transmitting a low-level voltage to a coupled point between a reference resistor and an identification resistor by using a main processor of the battery verification module, so as to activate the verification request, wherein the low-level voltage is lower than the pull-up voltage. - View Dependent Claims (17, 18)
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Specification