44 results about "High level trigger" patented technology

The invention discloses an ultra-low power consumption standby bluetooth device and an implementation method thereof. The bluetooth device comprises a main body and a switch device, a control circuit is arranged in the main body, the control circuit comprises a bluetooth module, a low level trigger ultra-low power consumption switch module and a high level trigger reset switch module, the low level trigger ultra-low power consumption switch module is connected with a deep sleep control pin of the bluetooth module, the high level trigger reset switch module is connected with an ON / OFF end of the bluetooth module, and a switching device controls the low level trigger ultra-low power consumption switch module and the high level trigger reset switch module to work. When a 50MAH battery is used on a bluetooth headset, standby current is 0.5muA, theory standby time can as long as 2500 hours which is amounted to 104 days, and when the ultra-low power consumption standby bluetooth device is used on the bluetooth headset, the standby time can increase from 4 days to 104 days, 100 days of standby time are increased, charging frequency is greatly reduced, and using convenience is increased.

The present invention provides a Bluetooth apparatus with ultra-low standby power consumption and an implementation method thereof. The Bluetooth apparatus comprises a main body and a switch apparatus. A control circuit is arranged in the main body, and the control circuit comprises a Bluetooth module, a low-level-triggered ultra-low power consumption switch module and a high-level-triggered reset switch module. The low-level-triggered ultra-low power consumption switch module is connected to a deep sleep control pin of the Bluetooth module, and the high-level-triggered reset switch module is connected to an ON / OFF end of the Bluetooth module. A switching apparatus controls the low-level-triggered ultra-low power consumption switch module and the high-level-triggered reset switch module to work. According to the present invention, when a 50 MAH battery is used on a Bluetooth headset, the standby current is 0.5 uA, and theoretical standby time can reach 2500 hours, which is amounted to 104 days. When the novel technology is used on the Bluetooth headset, standby time can increase from 4 days to 104 days, with an increase of 100 days of standby time, which greatly reduces charging frequency and improves convenience in use.

The invention discloses a shift register and a drive method thereof. The potential changes of input signals of the shift register can be controlled by a first control signal and a second control signal respectively, so that high level trigger type signal shift and low level trigger type signal shift can be realized by the shift register. Besides, the first control signal and the second control signal are clock signals with the same frequency, integral shift of the signals on the timing sequence can be realized and overlapping shift of the signals on the timing sequence and at different proportions can be realized by setting the different triggering time of the first control signal and the second control signal, that is shift of different manners is realized, so that the shift register can be suitable for various drive modes of flat panel display devices.

The invention discloses a self-recovery method of a disabled transmitting terminal of an optical module during an OTDR test, aiming at providing an application that the transmitting terminal of the optical module during the OTDR test performs self-recovery after turning off of a laser because of self protection. The technical scheme of the self-recovery method of a disabled transmitting terminal of an optical module during an OTDR test is implemented through the following steps: setting a micro control unit MCU with self-recovery program software in an optical module, polling the working state of the optical module, and judging whether the displayed fault number of a Fault counter is less than 3 when the self-recovery program software detects that a Fault state occurs in the optical module; if so, automatically entering the interruption program, wherein an MCUI / O interface generates a high level trigger signal and sends the high level trigger signal to a driver chip; at the same time, adding 1 to the displayed fault number of the Fault counter, and recovering the transmitting terminal of the optical module to enable the transmitting terminal to work normally; and if the displayed fault number of the Fault counter is greater than 3, not entering the interruption program, and continuously executing the main program. The self-recovery method of a disabled transmitting terminal of an optical module during an OTDR test utilizes the self-recovery function of the optical module to clear the accidental fault state, so that normal usage of the optical module is not influenced and the later maintenance cost for a system operator and an optical module manufacturer is reduced.

The invention relates to a time sequence control circuit applied to power supplies. The circuit mainly solves the problem that existing time sequence control circuits are complex. The circuit includesa timing circuit body and an enabling circuit body. A switched-on power supply makes the timing circuit body work normally through a three-terminal voltage regulator; when a time value set by the circuit is reached, a timer outputs high level to trigger the enabling circuit body, and the enabling circuit body controls an enabling end of a delay output power supply for output. The time sequence control circuit is simple in structure and reliable and can be applied to the multi-path power supplies.

The invention relates to a device for improving the rising characteristic of the current in the starting process of a stepping motor. The device comprises a pulse and high level triggering device, a switch unit, a trigger pulse stabilizing device, a short time pulse providing device, the stepping motor, a lower voltage source, a high voltage source, a first transistor, a second transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a variable resistor, a capacitor and a 5V voltage source. The voltage switching method is adopted for the device to drive the stepping motor, the stepping motor can be started fast, the response characteristic curve of the stepping motor and the rising characteristic of the current in the starting process of the stepping motor can be improved, and thus the current is closer to a rectangle.

The invention discloses a shift register and a drive method thereof. The potential changes of input signals of the shift register can be controlled by a first control signal and a second control signal respectively, so that high level trigger type signal shift and low level trigger type signal shift can be realized by the shift register. Besides, the first control signal and the second control signal are clock signals with the same frequency, integral shift of the signals on the timing sequence can be realized and overlapping shift of the signals on the timing sequence and at different proportions can be realized by setting the different triggering time of the first control signal and the second control signal, that is shift of different manners is realized, so that the shift register can be suitable for various drive modes of flat panel display devices.

The invention discloses a self-recovery method for the failure of the transmitting end of the optical module in the OTDR test, aiming to provide an application of self-recovery after the laser is turned off due to the self-protection of the transmitting end of the optical module in the OTDR test. The present invention is realized through the following technical solutions: a micro-control unit MCU containing self-recovery program software is set in the optical module, and the working status of the optical module is polled. When the self-recovery program detects that the optical module is in a fault state, Judging whether the Fault counter is less than 3, it will automatically enter the interrupt program, and the MCUI / O port will generate a high-level trigger signal to the driver chip, and at the same time add 1 to the Fault counter to restore the normal operation of the driver chip at the transmitting end of the optical module; if it is greater than 3, Then it does not enter the interrupt program and continues to execute the main program. The present invention clears accidental fault states through the self-recovery function of the optical module itself, which neither affects the normal use of the optical module, but also reduces the post-maintenance cost of the system operator and the optical module manufacturer.

The invention provides a shift register, a driving method, and a gate driving circuit. The shift register includes: a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor, a first capacitor, and a second capacitor, And a trigger signal input terminal, a first clock signal terminal, a second clock signal terminal, a first level signal terminal, a second level signal terminal and an output terminal, the trigger signal input terminal receives a high level trigger signal, the The output end of the shift register outputs a high level signal. The shift register occupies a small layout area, which is beneficial to reducing the frame of the display panel.

The invention discloses an intelligent player system and a method of a mobile phone. The intelligent player system and the method of the mobile phone comprise the following steps: step A, a support on the rear cover of the mobile phone is opened so that a magnet is away from a Hall sensor; step B, the Hall sensor is free from the induction of a magnetic field and correspondingly outputs a high electric level to a microprocessor; step C, a central processing unit CPU generates a high-electric-level-triggered interrupt signal according to the high electric level signal, judges that the support is in an opened state, and control a player to play; and step D, the support on the rear cover of the mobile phone is closed, so the magnet is close to the Hall sensor, the Hall sensor is subjected to the induction of the magnetic field and correspondingly output a low electric level to the microprocessor, and the CPU generates a low-electric-level-triggered interrupt signal according to the low electric level signal, judges that the support is in a closed state, and shuts down the player. According to the intelligent player system and the method of the mobile phone, the effect, on the Hall sensor, of the magnetic field of the magnet is utilized, when the support is opened or closed, the Hall sensor correspondingly generates the high electric level or the low electric level and enables the CPU to generate high-electric-level-triggered interrupt or low-electric-level-triggered interrupt in a corresponding mode, so that the player is controlled to be turned on or turned off automatically. According to the intelligent player system and the method of the mobile phone, automatic turn-on and turn-off of player are achieved through the opening and closing of the support, operation and use of a user are greatly facilitated, and the problem that operation procedures of a mobile phone player are complex currently is solved.

The invention discloses a photosensitive switch infusion bottle automatic alarming device and belongs to medical apparatuses and instruments. A light-blocking plate is arranged in an infusion bottle. A shell body is assembled on the outer side portion of an infusion bottle outer sleeve. A photosensitive sensor module, a high-level trigger type buzzer module and a battery are arranged in the shell body. A photosensitive resistor is assembled on the lower side portion of the infusion bottle outer sleeve. The photosensitive resistor and the battery are respectively connected with the photosensitive sensor module through leading wires. The high-level trigger type buzzer module is respectively connected with the photosensitive sensor module and the battery through leading wires. A sealed light-blocking sleeve is arranged on the bottom of the infusion bottle outer sleeve above the outer side of a bottle cover. A sealed light-blocking zone is formed on the bottom side portion of the infusion bottle. According to the device, hint is given timely before drop infusion is about to end, medical negligence is avoided, and the device has the advantages of being novel and reasonable in structure and good in using safety.