Abstract: A mixed mode compensation circuit for a power converter generate a digital signal according to a reference signal and a feedback signal which is related to the output voltage of the power converter, convert the digital signal into a first analog signal, offset the first analog signal with a variable offset value to generate a second analog signal, and filter out high-frequency components of the second analog signal to generate a third analog signal for stable output voltage of the power converter. The mixed mode compensation does not require large capacitors, and thus the circuit can be integrated into an integrated circuit.

Abstract: A mobility aid with rehabilitative and guiding functions includes a main body, a processing unit, a guiding module, a detection module, an inertia sensor, a recording module, and an electricity module. A rehabilitation and guiding method includes the steps of: A) constantly projecting a visible light beam to a next-step position of the mobility aid; B) moving the mobility aid to its next-step position under the guidance of the visible light beam; C) constantly emitting an ultrasonic wave to a next-step position of at least one of the user's feet to define a detection area; D) detecting whether the foot is moved into the detection area; E) recording the moving process of any of the steps A through D and notifying a remote device of the moving process; and F) detecting any of the steps A through D and, if an abnormal condition occurs, sending out a warning message.

Abstract: A frequency jittering control circuit for a PFM power supply includes a pulse frequency modulator to generate a frequency jittering control signal to switch a power switch to generate an output voltage. The frequency jittering control circuit jitters an input signal or an on-time or off-time of the pulse frequency modulator to jitter the switching frequency of the power switch to thereby improve EMI issue.

Abstract: An AC-to-DC power converter with a BJT as a power switch can set a base current of the BJT by a current setting resistor which is in the outside of a control integrated circuit. Since an output current and a recovery current of the BJT are injected into a sensing resistor, the AC-to-DC power converter can correctly detect an inductor current thereof from the sensing resistor.

Abstract: An apparatus and a method for implementing a multiple function pin in a boundary conduction mode power supply, uses a same pin to switch a power switch and to achieve zero current detection to reduce pin count and save cost of a control integrated circuit. A first voltage is applied to the multiple function pin to turn on the power switch, and then a second voltage is applied to the multiple function pin after the power switch has been turned on for a first time, to thereby turn off the power switch. After the power switch has been turned off for a second time, a third voltage is applied to the multiple function pin keep the power switch off. Preferably, a tristate output driver is used to provide the first and second voltages, and a clamping circuit is used to provide the third voltage.

Abstract: A linear LED driver includes a voltage supply terminal providing a driving voltage, at least one first transistor, each of which has an input terminal coupled to a respective LED, and a bleeder circuit. When the voltage of the output terminal of each of the at least one first transistor is lower than a first threshold and a power voltage is higher than a second threshold, the bleeder circuit will generate a bleeder current to discharge the voltage supply terminal so as to prevent the LEDs from flickering. The bleeder circuit detects the voltage of the output terminal of each of the at least one first transistor. Therefore, whether the LEDs are lighted up can be confirmed so that the bleeder current can be provided at properly time point.

Abstract: A linear LED driver includes a voltage supply terminal providing a driving voltage, at least one first transistor, each of which has an input terminal coupled to a respective LED, and a bleeder circuit. When the voltage of the output terminal of each of the at least one first transistor is lower than a first threshold and a power voltage is higher than a second threshold, the bleeder circuit will generate a bleeder current to discharge the voltage supply terminal so as to prevent the LEDs from flickering. The bleeder circuit detects the voltage of the output terminal of each of the at least one first transistor. Therefore, whether the LEDs are lighted up can be confirmed so that the bleeder current can be provided at properly time point.

Abstract: A linear LED driver comprises a transistor having an input terminal coupled to a LED. When the transistor is turned on, the LED is lighted. The linear LED driver further includes a protection circuit for judging whether an instant high voltage variation occurs or not according to at least one of the voltages of a control terminal and an output terminal of the transistor so as to achieve a protection function.

Abstract: A system for trial use of application software comprises at least one user device and a server. The server is communicatively coupled to the user device. The server receives a request data for trying an application software, the request data is generated corresponding to an input on the user device, the server executes at least one part of the application software according to the request data and establishes a two-way communication with the user device, and the server and the user device transmits at least one image data and at least one control data via the two-way communication.

Abstract: A bleeding circuit and method for an electromagnetic interference filter detect whether or not an AC power source connected to the electromagnetic interference filter is removed, establish a discharge path for discharging a capacitor of the electromagnetic interference filter once the connected AC power source is removed, and cut off the discharge path during the AC power source is in connection to the electromagnetic interference filter for decreasing power consumption of the electromagnetic interference filter.

Abstract: A switching power converting apparatus includes a voltage conversion module, a detecting unit, and a switching signal generating unit. The voltage conversion module converts an input voltage into an output voltage associated with a secondary side current, which flows through a secondary winding of a transformer and is generated based on a switching signal. The detecting unit generates a detecting signal based on the output voltage and a predetermined reference voltage. The switching signal generating unit generates the switching signal based on the detecting signal and an adjusting signal so that the secondary side current is gradually increased during a start period of the switching power converting apparatus.

Abstract: A cloud management system for executing applications of Android system includes at least one user device and a cloud simulator. The cloud simulator couples to the user device via a network and is arranged for receiving a request from the user device, providing a first virtual phone interface corresponding to the user device to the user device in response to the request, wherein the first virtual phone interface includes respective applications of Android system, receiving an application selection from the user device and performing a first application corresponding to the application selection and returning the execution result for the first application to the user device for displaying via the first virtual phone interface.

Abstract: An LED control device for configuring a phase-cut dimming system includes an LED and a switch. The LED control device configures the conduction status of the switch so as to supply power to the LED according to an input signal. The LED control device further detects whether the input signal is phase-cut. When the input signal is phase-cut, the LED control device stores the signal values of the internal circuits. Afterward, when the input signal is not phase-cut, the LED control device restores the stored signal values so that the internal circuits may resume to the previous operation status rapidly.

Abstract: A method for detecting abnormal state of medical container contains steps of: enabling a weight detecting unit to detect weight of a medical container which is coupled with a patient to acquire content change data; enabling an inclination detecting unit to detect inclination state of the medical container to acquire inclination data; receiving the content change data and the inclination data by a controlling unit; and comparing the content change data and the inclination data with preset content data and initial inclination data respectively, such that when the content change data is different from the preset content data, a warning unit is started by the controlling unit; or when the inclination data is different from the initial inclination data, the warning unit is started by the controlling unit. In addition, a device for detecting abnormal state of the medical container matches is used to execute above-mentioned steps.

Abstract: A wireless transmission method for broadcasting packets to a plurality of receiving devices includes: broadcasting a plurality of packets to the receiving devices, receiving signals transmitted from the receiving devices, generating a plurality of estimation results according to the signals transmitted from the receiving devices where each of the estimation results corresponds to a receiving quality while each of the receiving devices receives the packets, determining whether each of the receiving devices is suitable for receiving the packets according to each of the estimation results and a recipient condition and storing information of at least one of the receiving devices suitable for receiving the packets, and determining whether the at least one of the receiving devices needs to receive a broadcasted packet again according to the information and signals transmitted from the at least one of the receiving devices suitable for receiving the packets.

Abstract: A switching power converting apparatus includes a voltage conversion module, a detecting unit, and a switching signal generating unit. The voltage conversion module converts an input voltage into an output voltage associated with a secondary side current, which flows through a secondary winding of a transformer and is generated based on a switching signal. The detecting unit generates a detecting signal based on the output voltage and a predetermined reference voltage. The switching signal generating unit generates the switching signal based on the detecting signal and an adjusting signal so that the secondary side current is gradually increased during a start period of the switching power converting apparatus.

Abstract: A switching power converting apparatus includes a voltage conversion module, a detecting unit, and a switching signal generating unit. The voltage conversion module converts an input voltage into an output voltage associated with a secondary side current, which flows through a secondary winding of a transformer and is generated based on a switching signal. The detecting unit generates a detecting signal based on the output voltage and a predetermined reference voltage. The switching signal generating unit generates the switching signal based on the detecting signal and an adjusting signal so that the secondary side current is gradually increased during a start period of the switching power converting apparatus.

Abstract: A device of detecting bladder pressure contains: a tube and a pressure gauge. The tube includes an expansion end and a pressure detection end communicating with the expansion end, the expansion end is a closed end and is adapted to be inserted into a bladder to abut against an inner wall of the bladder. The pressure gauge is coupled to the pressure detection end of the tube so as to measure the pressure in the bladder when the expansion end is inserted into the bladder. Also, a method of judging removal timing of catheter from patient's body is executed by using the device. Thereby, the doctor is capable of judging whether the catheter can be removed from patient's body.

Abstract: A method for detecting abnormal state of medical container contains steps of: enabling a weight detecting unit to detect weight of a medical container which is coupled with a patient to acquire content change data; enabling an inclination detecting unit to detect inclination state of the medical container to acquire inclination data; receiving the content change data and the inclination data by a controlling unit; and comparing the content change data and the inclination data with preset content data and initial inclination data respectively, such that when the content change data is different from the preset content data, a warning unit is started by the controlling unit; or when the inclination data is different from the initial inclination data, the warning unit is started by the controlling unit. In addition, a device for detecting abnormal state of the medical container matches is used to execute above-mentioned steps.

Abstract: A mixed mode compensation circuit and method for a power converter generate a digital signal according to a reference value and a feedback signal which is related to the output voltage of the power converter, convert the digital signal into a first analog signal, offset the first analog signal with a variable offset value to generate a second analog signal, and filter out high-frequency components of the second analog signal to generate a third analog signal for stable output voltage of the power converter. The mixed mode compensation does not require large capacitors, and thus the circuit can be integrated into an integrated circuit.