Control device and air conditioner
AssigneeDaikin Industries, Ltd.
InventorsTeruhisa Fukushima, Kazuhei Yamada, Narushige Ueda
Life of this patent
Estimating the term…
Abstract
A control device includes a first control board connected with an AC power source and equipped with a first control unit, and a second control board provided separately and different from the first control board and equipped with a second control unit. The first control board includes a noise filter, an AC-DC converter configured to generate DC voltage from AC voltage, and DC output wiring configured to allow the DC voltage to be used in the board and also supply the DC voltage to outside the board. The second control board is supplied with DC voltage from the DC output wiring.
Claims15
A control device comprising:
- a first control board connected with an AC power source and equipped with a first control unit;
- and
- a second control board provided separately and different from the first control board and equipped with a second control unit;
- wherein
- the first control board includes a noise filter, an AC-DC converter configured to generate DC voltage from AC voltage, and DC output wiring configured to allow the DC voltage to be used in the board and also supply the DC voltage to outside the board, and
- the second control board is supplied with the DC voltage from the DC output wiring.
A control device comprising:
- a first control board connected with an AC power source and equipped with a first control unit;
- and
- a second control board provided separately and different from the first control board and equipped with a second control unit;
- wherein
- the first control board includes a noise filter, an AC-DC converter configured to generate DC voltage from AC voltage, and DC output wiring configured to allow the DC voltage to be used in the board and also supply the DC voltage to outside the board, and
- the second control board is supplied with the DC voltage from the DC output wiring, wherein
- the second control board includes a communication circuit configured to execute communication between the first control unit and the second control unit by means of a current signal, and the communication circuit includes
- an input unit configured to provide an input signal from the first control board to the second control unit,
- an output unit connected in series to the input unit and configured to output an output signal from the second control unit to the first control board, and
- a bypass circuit provided in parallel with the output unit and including a first switch, and
- the second control unit closes the first switch when coming into a sleep mode and opens the first switch when cancelling the sleep mode.
Dependencies are inferred from the claim text.