EP0477891A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Power supply apparatus for television receiver set and television receiver set including the same
Assignee: Panasonic Holdings Corp
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Filing: 1991-09-25
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Granted: —
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Expires: 2011-09-25
Abstract
Abstract A power supply apparatus for the television receiver set comprising a television receiving circuit and other receiving circuits, for example, satellite broadcasting receiving circuit or character broadcasting receiving circuit, each of receiving circuit is supplied with a supply power from the same switching power supply of regenerative type having plural secondary windings wherein some receivers are selectively turned off by switches provided the receivers and the switching power supply for automatic recording or standby mode. The regenerative type of switching power supply has a stable output characteristic over a range from no load to the maximum load because of regenerative operation. The horizontal scanning circuit is turned off by the switch. This causes the horizontal scanning circuit and vertical scanning and video signal processing circuits to stop operation because supply power of the vertical scanning and video processing circuits are supplied with power from the horizontal scanning circuit through a high voltage generation circuit. The television having satellite broadcasting circuit and such power supply apparatus is also disclosed.
Inventors
- 👤 Takeo Koyama
- 👤 Takashi Nakano
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 10:20
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/63; H02; H02M; H02M1/00; H02M1/0003; H02M1/0032; Y; Y02; Y02B; Y02B70/00; Y02B70/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
114 words
A power supply apparatus for a television receiver set including a television circuit means and broadcasting receiving circuit means for receiving broadcasting whose type is different from that of said television circuit means, comprising: (a) a regenerative type of switching power supply for producing a plurality of supply voltages whose intensities are different from each other; and (b) switch means for controlling of supplying of a first supply voltage out of said supply voltages to said television circuit means in response to a control signal, wherein said broadcasting receiving circuit means comprises satellite broadcasting receiving means and a second supply voltage out of said supply voltages is supplied to said satellite broadcasting receiving means.
Claim 2
Dependent Claim
74 words
A power supply apparatus for a television receiver set as claimed in Claim 1, further comprising second switching means and, wherein said broadcasting receiving circuit means further comprises character broadcasting receiving means; a third supply voltage out of said supply voltages is supplied to said character broadcasting receiving means; and said second switching means controls supplying of said third supply voltage to said character broadcasting receiving means in response to a second control signal.
Claim 3
Dependent Claim
54 words
A power supply apparatus for a television receiver set as claimed in Claim 1, further comprising control means for producing said control signal in response to an external command and, wherein any one of said supply voltages is supplied to said control means and said any one of said supply voltages is supplied continuously.
Claim 4
Dependent Claim
51 words
A power supply apparatus for a television receiver set as claimed in Claim 3, further comprising a dc-dc converting means, provided between said power supply and said control means, for changing a voltage intensity of said any one of said supply voltages to another voltage intensity necessary for said control means.
Claim 5
Dependent Claim
45 words
A power supply apparatus for a television receiver set as claimed in Claim 1, further comprising second switching means and, wherein said second switching means controls supplying of said second supply voltage to said satellite broadcasting receiving means in response to a second control signal.
Claim 6
Dependent Claim
74 words
A power supply apparatus for a television receiver set as claimed in Claim 5, further comprising third switching means and, wherein said broadcasting receiving circuit means further comprises character broadcasting receiving means; a third supply voltage out of said supply voltages is supplied to said character broadcasting receiving means; and said third switching means controls supplying of said third supply voltage to said character broadcasting receiving means in response to a third control signal.
Claim 7
Dependent Claim
58 words
A power supply apparatus for a television receiver set as claimed in Claim 6, further comprising control means for producing said first, second, and third control signals in response to an external command and, wherein any one of said supply voltages is supplied to said control means and said any one of said supply voltages is supplied continuously.
Claim 8
Dependent Claim
51 words
A power supply apparatus for a television receiver set as claimed in Claim 7, further comprising a dc-dc converting means, provided between said power supply and said control means, for changing a voltage intensity of said any one of said supply voltages to another voltage intensity necessary for said control means.
Claim 9
Dependent Claim
104 words
A power supply apparatus for a television receiver set including a television circuit means and broadcasting receiving circuit means for receiving broadcasting whose type is different from that of said television circuit means, comprising: (a) a regenerative type of switching power supply for producing a plurality of supply voltages, a first supply voltage out of said supply voltages being supplied to said television circuit means, a second supply voltage out of said supply voltages being supplied to said broadcasting circuit means; and (b) control means for controlling of supplying of each of said first and second supply voltages in accordance with an external command.
Claim 10
Dependent Claim
121 words
A television receiver set having a television circuit means and broadcasting receiving circuit means for receiving broadcasting whose type is different from that of said television circuit means, comprising: (a) a regenerative type of switching power supply for producing a plurality of supply voltages, a first supply voltage out of said supply voltages being supplied to said television circuit means, a second supply voltage out of said supply voltages being supplied to said broadcasting circuit means; and (b) control means for controlling of supplying of each of said first and second supply voltages in accordance with a control signal, wherein said television circuit means comprises a horizontal scanning circuit and said first supply voltage is supplied to said horizontal scanning circuit.
Claim 11
Dependent Claim
53 words
A television receiver set as claimed in Claim 10, further comprising control means for producing said control signal in response to an external command and, wherein any one of said supply voltages is provided for a power source of said control means and said any one of said supply voltages is supplied continuously.
Claim 12
Dependent Claim
46 words
A television receiver set as claimed in Claim 11, further comprising a dc-dc converting means, provided between said power supply and said control means, for changing a voltage intensity of said any one of said supply voltages to another voltage intensity necessary for said control means.
Claim 13
Dependent Claim
161 words
A television receiver set having a television circuit means and broadcasting receiving circuit means for receiving broadcasting whose type is different from that of said television circuit means, comprising: (a) a regenerative type of switching power supply for producing a plurality of supply voltages, a first supply voltage out of said supply voltages being supplied to said television circuit means, a second supply voltage out of said supply voltages being supplied to said broadcasting circuit means; and (b) control means for controlling of supplying of each of said first and second supply voltages in accordance with a control signal, wherein said television circuit means comprises: video signal processing circuit means; vertical scanning circuit means, horizontal scanning circuit means; and voltage generation means responsive to said horizontal scanning circuit means for producing a first voltage supplied to said vertical scanning circuit and second voltage supplied to said video processing circuit, and said first supply voltage is supplied to said horizontal scanning circuit.
Claim 14
Dependent Claim
53 words
A television receiver set as claimed in Claim 13, further comprising control means for producing said control signal in response to an external command and, wherein any one of said supply voltages is provided for a power source of said control means and said any one of said supply voltages is supplied continuously.
Claim 15
Dependent Claim
46 words
A television receiver set as claimed in Claim 14, further comprising a dc-dc converting means, provided between said power supply and said control means, for changing a voltage intensity of said any one of said supply voltages to another voltage intensity necessary for said control means.
References Cited (Backward Citations)
No citation records indexed.
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