-
公开(公告)号：US20220066421A1
公开(公告)日：2022-03-03
申请号：US17007926
申请日：2020-08-31
Applicant: SEA SONIC ELECTRONICS CO., LTD.
Inventor： Sheng-Chien CHOU , Chih-Sheng CHANG , Cheng-Yung LO
IPC: G05B19/4155
Abstract: A fan driving circuit with temperature compensation comprises a power input end, a power output end connected with a fan motor, a first transistor arranged between the power input end and the power output end, a signal adjuster connected with the first transistor and connected with a signal generating circuit, a second transistor connected with the signal adjuster, and a feedback unit. The feedback unit comprises a first resistor and a second resistor connected in series, and a compensation bypass connected in parallel with the first resistor or the second resistor, wherein the compensation bypass comprises a thermistor, a resistance of the thermistor changes along with the temperature and changes a magnitude of a feedback current which is provided to the second transistor, so as to compensate a change of a common emitter current gain in the second transistor generated by the temperature.
-
Patent Agency Ranking
公开(公告)号：US20220149780A1
公开(公告)日：2022-05-12
申请号：US17506016
申请日：2021-10-20
Applicant: SEA SONIC ELECTRONICS CO., LTD.
Inventor： Hsiu-Cheng CHANG , Sheng-Chien CHOU
Abstract: The invention provides a photoelectric energy conversion device applied to a power conversion circuit to replace a magnetic component which is widely used in a power conversion circuit. The photoelectric energy conversion device includes a shell, at least one light generator, and at least one photovoltaic generator, wherein the at least one light generator and the at least one photovoltaic generator are packaged in the shell. The at least one photovoltaic generator receives light generated in the shell by the at least one light generator and generates electric energy based on the light, and the at least one photovoltaic generator serves as a power supply source for a back-end circuit of the photoelectric energy conversion device.
-
公开(公告)号：US20230152357A1
公开(公告)日：2023-05-18
申请号：US17526438
申请日：2021-11-15
Applicant: SEA SONIC ELECTRONICS CO., LTD.
Inventor： Sheng-Chien CHOU , Chien-Chung TSAN
Abstract: A control module of a power calibration circuit comprises a control unit, a main voltage feedback unit and an auxiliary voltage feedback unit, the control unit is connected to at least one power switch, the main voltage feedback unit is connected to an output terminal of the power calibration circuit and the control unit, the auxiliary voltage feedback unit is connected to the output terminal and the control unit, the auxiliary voltage feedback unit comprises a voltage dividing circuit connected to the output terminal and having at least one voltage dividing node, and a voltage limiting circuit connected to the voltage dividing node and the control unit, the voltage limiting circuit has a first state when a voltage of the voltage dividing node is not higher than a reference voltage, and a second state when a voltage of the voltage dividing node is higher than the reference voltage.
-
公开(公告)号：US20230047476A1
公开(公告)日：2023-02-16
申请号：US17403441
申请日：2021-08-16
Applicant: SEA SONIC ELECTRONICS CO., LTD.
Inventor： Sheng-Chien CHOU , Chih-Sheng CHANG
Abstract: A compound control circuit comprises an input end, a light-load signal processing circuit, a slow response circuit and a fast response circuit. The compound control circuit is mainly used as an additional circuit of a work control chip, so that although the work control chip only has a single overcurrent protection level, a compound function control of fast and slow speed, high and low level current protection and light-load signal stabilization can be generated through the compound control circuit, so as to meet the complex application environment and compatible requirements of the current power supply.
-
公开(公告)号：US20240223052A1
公开(公告)日：2024-07-04
申请号：US18149503
申请日：2023-01-03
Applicant: SEA SONIC ELECTRONICS CO., LTD.
Inventor： Sheng-Chien CHOU , Chi-Hao CHANG
IPC: H02K15/04
CPC classification number: H02K15/0442
Abstract: A manufacturing method of a magnetic assembly winding includes the following steps: providing a winding frame; and then winding a plurality of turns of basic coils on the winding frame with a wire, wherein lengths of two ends of the wire to a segment of the wire wound into the basic coils is longer than a length of the wire wound with a plurality of turns of coils; and then, continuing winding of the plurality of turns of coils by two wire segments of the wire connected with two ends of each basic coil to complete a magnetic assembly winding, respectively. The magnetic assembly winding comprises two tail segments; and the two tail segments are formed by extending outermost ones of the plurality of coils.
-
公开(公告)号：US20220131495A1
公开(公告)日：2022-04-28
申请号：US17077825
申请日：2020-10-22
Applicant: SEA SONIC ELECTRONICS CO., LTD.
Inventor： Sheng-Chien CHOU , Hsiu-Cheng CHANG , Wei-Chen WU
Abstract: The present invention provides a fan speed control method for avoiding inaccurate control caused by sudden changes in a power supply output state, including the steps of: acquiring an output current value of a power supply device; and then, determining a change of the output current value in a sampling timeframe, if a slope representing the change is positive, controlling the control signal generating unit to gradually replace the fan control signal currently output to the fan with another fan control signal on the basis of a first latency, and if the slope representing the change is negative, controlling the control signal generating unit to gradually replace the fan control signal currently output to the fan with another fan control signal on the basis of a second latency. The first latency and the second latency are determined by the output current value, respectively.
-
-
-
-
-
Search Results
6
records
(took 0.015 seconds)
