Abstract: A rechargeable battery protection device has a voltage detector, a logic circuit, an output stage, a first switch, a second switch and inverter circuits. The device turns on a charger to charge a rechargeable battery or turns off the charger not to charge the rechargeable battery depending on the purpose for battery protection.

Abstract: A temperature measuring system and a measuring method using the same are disclosed. The method for measuring an integrated circuit temperature includes the steps of: detecting a first difference in output voltage values between a first transistor and a second transistor by providing a first current through the first transistor and a second current through the second transistor; detecting a second difference in output voltage values between the first transistor and the second transistor by providing the second current through the first transistor and the first current through the second transistor; obtaining an average value by averaging the first difference and the second difference; and determining the temperature by multiplying the average value with a predetermined value.

Abstract: A first gain stage and a second gain stage having different gains are linked in cascade to construct a wide range and high resolution programmable gain amplifier. The second gain stage can be used only for low gain and low power consumption. Furthermore, two pairs of chopper circuits are used to shift flicker noise when the programmable gain amplifier is operated.

Abstract: A first gain stage and a second gain stage having different gains are linked in cascade to construct a wide range and high resolution programmable gain amplifier. The second gain stage can be used only for low gain and low power consumption. Furthermore, two pairs of chopper circuits are used to shift flicker noise when the programmable gain amplifier is operated.

Abstract: A temperature measuring system and a measuring method using the same are disclosed. The method for measuring an integrated circuit temperature includes the steps of: detecting a first difference in output voltage values between a first transistor and a second transistor by providing a first current through the first transistor and a second current through the second transistor; detecting a second difference in output voltage values between the first transistor and the second transistor by providing the second current through the first transistor and the first current through the second transistor; obtaining an average value by averaging the first difference and the second difference; and determining the temperature by multiplying the average value with a predetermined value.

Abstract: A rechargeable battery protection device has a voltage detector, a logic circuit, an output stage, a first switch, a second switch and inverter circuits. The device turns on a charger to charge a rechargeable battery or turns off the charger not to charge the rechargeable battery depending on the purpose for battery protection.

Abstract: An integrated circuit (IC) with a self-proofreading function includes a micro control unit (MCU) and a one-time programmable (OTP) memory connected with the MCU. The OTP memory includes an instruction memory region for storing instructions and a parameter memory region for storing standard parameters for proofreading. The MCU computes a measured result according to the standard parameters. The IC can operate without an external memory, therefore, the proofreading procedure using the IC is simplified, and the cost of the terminal product using the IC can be reduced.

Abstract: A method for programming a one-time programmable memory of an integrated circuit includes the following steps: writing an instruction set into the one-time programmable memory via a first programmable interface, running a programmable self-instruction of the instruction set, and writing a proofreading value of the integrated circuit into the one-time programmable memory via a second programmable interface. The present method takes full advantage of the one-time programmable memory. Manufacturers for manufacturing integrated circuits don't write various proofreading values corresponding to different applications. A producing efficiency can be increased, and a producing cost can be decreased. The present integrated circuit needs not to be communicated with an addition storing device, so the present integrated circuit has a simple construction, and the cost can be decreased. Since the present integrated circuit can write perform a proofreading self-instruction, the producing cost can be decreased.

Abstract: An integrated circuit (IC) includes a micro control unit (MCU), a one-time programmable (OTP) memory directly connected with the MCU, an electrical charge pump having an output port and an enable port connected to the MCU, and a switching circuit having a control port connected to the MCU, a first input port connected to the output port of the electrical charge pump, a second input port connected to a power source of the MCU, and an output port connected to the OTP memory to provide an operating voltage and a recording voltage for the OTP memory. Because the OTP memory can choose the operating voltage or the recording voltage, a measuring apparatus using this IC doesn't need an external power source to provide a VDD voltage being 5.8 volts. Therefore, a power consuming of the IC can be reduced.

Abstract: A method for programming a one-time programmable memory of an integrated circuit includes the following steps: writing an instruction set into the one-time programmable memory via a first programmable interface, running a programmable self-instruction of the instruction set, and writing a proofreading value of the integrated circuit into the one-time programmable memory via a second programmable interface. The present method takes full advantage of the one-time programmable memory. Manufacturers for manufacturing integrated circuits don't write various proofreading values corresponding to different applications. A producing efficiency can be increased, and a producing cost can be decreased. The present integrated circuit needs not to be communicated with an addition storing device, so the present integrated circuit has a simple construction, and the cost can be decreased. Since the present integrated circuit can write perform a proofreading self-instruction, the producing cost can be decreased.

Abstract: An integrated circuit (IC) with a self-proofreading function includes a micro control unit (MCU) and a one-time programmable (OTP) memory connected with the MCU. The OTP memory includes an instruction memory region for storing instructions and a parameter memory region for storing standard parameters for proofreading. The MCU computes a measured result according to the standard parameters. The IC can operate without an external memory, therefore, the proofreading procedure using the IC is simplified, and the cost of the terminal product using the IC can be reduced.

Abstract: An integrated circuit (IC) includes a micro control unit (MCU), a one-time programmable (OTP) memory directly connected with the MCU, an electrical charge pump having an output port and an enable port connected to the MCU, and a switching circuit having a control port connected to the MCU, a first input port connected to the output port of the electrical charge pump, a second input port connected to a power source of the MCU, and an output port connected to the OTP memory to provide an operating voltage and a recording voltage for the OTP memory. Because the OTP memory can choose the operating voltage or the recording voltage, a measuring apparatus using this IC doesn't need an external power source to provide a VDD voltage being 5.8 volts. Therefore, a power consuming of the IC can be reduced.