35results about How to "Prevent miswork" patented technology

The present invention provides a technique for preventing an erroneous write in and an erroneous erase from a nonvolatile memory, in the case of an erroneous operation of an arithmetic processor, at a low cost without providing any external circuit. A nonvolatile memory system comprises a nonvolatile memory, a volatile memory for storing a program containing an operation instruction to rewrite the contents of the nonvolatile memory, a processing device for controlling the nonvolatile memory and the volatile memory, first invalid instruction writing means for writing an invalid instruction in place of the operation instruction, at an initialization, at a predetermined address of the volatile memory for storing the operation instruction to the nonvolatile memory, control means for writing the operation instruction at the predetermined address of the volatile memory stored with the invalid instruction, before the start of the operation of the nonvolatile memory, and for operating the nonvolatile memory on the basis of the operation instruction, and second invalid instruction writing means for writing the invalid instruction at the predetermined address of the volatile memory after the execution of the operation of the nonvolatile memory.

An overboosting prevention circuit is provided in the invention to control the difference (Vdd-Vout) between the power supply voltage Vdd and the output voltage Vout (<0V) of the charge pump circuit 2 does not exceed a predetermined value VMAX. That is, the charge pump circuit 2 performs boosting operation when Vdd-VoutVMAX. An influence of the ripples caused in the charge pump circuit 2 is removed because the reference voltage Vref to an operational amplifier is determined relative to a ground voltage Vss. Therefore, the invention can prevent malfunction in an overboosting prevention circuit by removing ripples occurring in the boosting circuit.

The invention relates to a vehicle disc overheat-warning system and a control method thereof. According to the operating states of a braking safety system and a brake system mounted on a vehicle, the vehicle disc overheat-warning system predicts the temperature of discs by increasing and decreasing the heat generated by the braking safety system and the brake system in operation and the coolness of the braking safety system and the brake system not in operation, and thereby not only can warn the overheating state of the discs, but also can prevent misoperation by stopping the operation of the braking safety system, so that the vehicle can be safely driven.

The present invention relates to a semiconductor memory device. This semiconductor memory device includes a memory cell array including a plurality of bit lines, a plurality of word lines intersecting the plurality of bit lines, and memory cells provided at intersections of the plurality of bit lines and the plurality of word lines. and a control unit that controls the voltage applied to the bit line and the word line. In the case where a predetermined operation is continuously performed on a plurality of memory cells, the control unit selects a first bit line selected from among the plurality of bit lines and a first word line selected from among the plurality of word lines, and controls the first memory cell. After the first operation is performed, in the next second operation following the first operation, the second bit line different from the first bit line and the second word line different from the first word line are selected to select the second word line. 2 storage units.

The invention discloses an adjustable heat dissipation structure for a new energy vehicle battery, includes two heat sink plates, The top between the two heat dissipation plates is fixedly connected by a connecting device, the surface of the heat dissipation plate is provided with a first heat dissipation hole, A dust-proof pad is fixedly connected to one side of the heat dissipation plate close to the connecting device, and a heat dissipation regulating device is fixedly connected to one side of the heat dissipation plate far away from the connecting device. The heat dissipation regulating device comprises a shell, wherein one side of the shell close to the heat dissipation plate is fixedly connected to the heat dissipation plate, and a visible glass window is fixedly connected to the groove at the top of the shell. As that heat dissipation regulate device is arranged, The invention solves the problem that the traditional heat dissipation structure of the new energy vehicle can not beadjusted, and can adjust the position of the heat dissipation fan according to the position of the heat dissipation hole of different types of the new energy battery, thereby achieving the effect ofmatching the heat dissipation area with the new energy battery, improving the use limit of the heat dissipation and realizing the flexible use.

A ballast for a discharge lamp includes a fluorescent lamp (3), an AC / DC conversion portion (6), a dimming control portion (7), and a DC / AC conversion portion (9). The AC / DC conversion portion (6) converts a phase-controlled input AC voltage to a DC voltage. The dimming control portion (7) calculates a dimming control signal from the input AC voltage. The DC / AC conversion portion (9) converts the DC voltage from the AC / DC conversion portion (6) to a high frequency AC voltage to be applied to the fluorescent lamp (3) and lights and dims the lamp in response to the dimming control signal. The DC / AC conversion portion has a first operation mode for maintaining the lighting of the fluorescent lamp and for lighting and dimming the same and a second operation mode for supplying the fluorescent lamp with a voltage lower than the starting voltage of the lamp in its non-operating state. The conducting period of the phase-controlled AC voltage can be detected even in the non-operating state of the fluorescent lamp so as to restart the lamp.

The invention discloses a folding-machine paper-table paper feeding control method and device. The method includes the steps that a machine-running synchronization pulse signal and a paper position pulse signal Y of a folding machine are obtained, and according to the machine-running synchronization pulse signal, the pulse number M<T> collected in unit time is obtained; a paper-feeding control signal V is determined according to the pulse number M<T> collected in the unit time and the paper position pulse signal Y; a paper-feeding electromagnetic valve of the folding machine is controlled by the paper-feeding control signal V to work. The device comprises a machine-running synchronization pulse detection unit, a paper-position pulse detection unit, a microprocessor and a paper-feeding electromagnetic valve. By means of the folding-machine paper-table paper feeding control method and device, the working stability of a paper feeding system can be improved, the working efficiency of a machine is improved, the service life of the electromagnetic valve is prolonged, the technical requirements for robot operators are reduced, and therefore the working efficiency of the machine is improved; meanwhile, as for a body of the product, the additional resource cost does not need to be increased.