Title:
LIGHT-EMITTING DEVICE CONTROL CIRCUIT AND LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/017014
Kind Code:
A1
Abstract:
Provided are: a control circuit with which it is possible to adjust the light output and the light-emission colour of a light-emitting device using only a pulse power input; and a light-emitting device using the control circuit. The light-emitting device control circuit comprises: a signal-generating circuit electrically connected to a pulse power source acting as a power supply source for a plurality of light source circuits each comprising a light-emitting part; and a switching circuit electrically connected to at least one of the light source circuits. The signal-generating circuit is provided with a first resistor and a capacitor in series. The capacitor is provided with a bypass circuit including a second resistor. The switching circuit is provided with a switching element. A control signal from the signal-generating circuit acts as an ON signal or an OFF signal for the switching circuit depending on the waveform of the pulse power source.
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Inventors:
NADA TOMOKAZU (JP)
Application Number:
PCT/JP2018/013705
Publication Date:
January 24, 2019
Filing Date:
March 30, 2018
Export Citation:
Assignee:
ZIGEN LIGHTING SOLUTION CO LTD (JP)
International Classes:
H05B37/02
Foreign References:
| JP2006004876A | 2006-01-05 | |||
| JP2015122202A | 2015-07-02 | |||
| JP2016129126A | 2016-07-14 | |||
| US20060017402A1 | 2006-01-26 |
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