Power source apparatus, electronic equipment and ship application execution system

• US 10,581,331 B2
• Filed: 04/18/2017
• Issued: 03/03/2020
• Est. Priority Date: 04/28/2016
• Status: Active Grant

• Current Assignee: Furuno Electric Co, Ltd
• Original Assignee: Furuno Electric Co, Ltd
• Inventors: Kinoshita, Youhei, Yoshii, Hiroshi, Nagano, Hiroshi, Liu, Wenhai
• Primary Examiner(s): Gblende, Jeffrey A
• Assistant Examiner(s): Tiku, Sisay G
• Application Number:
  US16/090,592
• Publication Number:
  US 20190115839A1
• Time in Patent Office: 1,050 Days
• CPC Class Codes: G01R 19/16528 using digital techniques or performing arithmetic operations using digital techniques to measure a voltage or a current, see G01R19/25
• CPC Class Codes: G05B 19/0421 Multiprocessor system
• CPC Class Codes: G05F 1/462 as a function of the requirements of the load, e.g. delay, temperature, specific voltage/current characteristic
• CPC Class Codes: H02M 3/335 using semiconductor devices only
• CPC Class Codes: H02M 3/33507 with automatic control of the output voltage or current, e.g. flyback converters H02M3/33561, H02M3/33569 take precedence
• CPC Class Codes: H02M 3/33515 with digital control

Abstract

To measure with ease an input voltage from an external power source and notify the user of the input voltage, a power source apparatus comprising a power source voltage input terminal, an insulating transformer, a power source control device, and a communication unit is provided. The power source voltage input terminal is connected to an external battery. The insulating transformer has a primary coil that is connected to the power source voltage input terminal. The power source control device is connected to the power source voltage input terminal and measures the input voltage to the power source voltage input terminal. The communication unit transmits the voltage value measured by a microcomputer to the secondary side of the insulating transformer.

Claims

1. A power source apparatus, comprising:

a power source voltage input terminal connected to an external battery;

an insulating transformer, comprising a primary-side coil connected to the power source voltage input terminal;

processing circuitry connected to the power source voltage input terminal, and the processing circuitry being configured to measure an input voltage to the power source voltage input terminal;

a power switch connected to the processing circuitry;

a transmitter configured to transmit a voltage value measured by the processing circuitry to a secondary side of the insulating transformer;

a switch, configured to control a time for applying a voltage to the primary-side coil; and

a controller configured to control the switch, wherein

the processing circuitry is further configured to perform a power-off control on the controller when the voltage value is not within a given range, and wherein

the processing circuitry comprises a non-volatile memory for storing a first power state flag or a second power state flag, wherein the first power state flag corresponds to a power-on control on the controller, and the second power state flag corresponds to the power-off control on the controller;

when the processing circuitry is activated by the input voltage and detects the first power state flag from the non-volatile memory, the processing circuitry executes the power-on control on the controller,

when the processing circuitry is activated by the input voltage and detects the second power state flag from the non-volatile memory, the processing circuitry enters a standby state for detecting a press of the power switch, and

when the press of the power switch is detected in the standby state, the processing circuitry executes the power-on control on the controller.

2. The power source apparatus according to claim 1, wherein

the processing circuitry comprises a numerically controlled oscillator for generating a clock control signal of the controller, and

the controller controls the switch based on the clock control signal.

3. An electronic equipment, comprising:

the power source apparatus according to claim 1;

a secondary-side circuit connected to a secondary-side coil of the insulating transformer;

an application processor supplied with an electric power from the secondary-side circuit; and

a display connected to the application processor; and

the application processor receives the voltage value from the transmitter and displays the voltage value on the display.

4. The electronic equipment according to claim 3, wherein

the application processor executes an application for ships.

5. A ship application execution system, comprising:

a plurality of the electronic equipment according to claim 4;

a battery;

a breaker switch connected to the battery; and

a distributor connected between the breaker switch and the plurality of electronic equipment, and the distributor being configured to distribute a voltage of the battery to the plurality of electronic equipment.

6. The power source apparatus according to claim 1, wherein

the processing circuitry comprises a numerically controlled oscillator for generating a clock control signal of the controller, and

the controller controls the switch based on the clock control signal.

7. The power source apparatus according to claim 1, wherein

the processing circuitry comprises a numerically controlled oscillator for generating a clock control signal of the controller, and

the controller controls the switch based on the clock control signal.

8. The power source apparatus according to claim 1, wherein

the processing circuitry comprises a non-volatile memory for storing a first power state flag or a second power state flag, wherein the first power state flag corresponds to a power-on control on the controller, and the second power state flag corresponds to a power-off control on the controller;

and

when the processing circuitry is activated by the input voltage and detects the first power state flag from the non-volatile memory, the processing circuitry executes the power-on control on the controller.

9. An electronic equipment, comprising:

the power source apparatus according to claim 1;

a secondary-side circuit connected to a secondary-side coil of the insulating transformer;

an application processor supplied with an electric power from the secondary-side circuit; and

a display connected to the application processor; and

the application processor receives the voltage value from the transmitter and displays the voltage value on the display.