Lamp bypass switch
First Claim
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1. A lamp assembly comprising:
- a plurality of light sources;
a source of electrical power;
a source of control signals;
a control element including an normal drive circuitry and an emergency drive circuitry, the normal drive circuitry configured to provide, in accordance with first control signals received from the source of control signals, the electrical power, received from the source of electrical power, to the light sources via light source connectors, the normal drive circuitry including a potentiometer associated with each of the light source connectors; and
a bypass switch configured to, responsive to activation, transmit an override signal to the control element;
wherein the control element is configured to;
receive, from the bypass switch, the override signal;
receive, from the source of control signals, second control signals; and
receive, from the source of electrical power, further electrical power; and
,wherein the emergency drive circuitry is configured to, responsive to receiving the override signal, provide the further electrical power to the light sources via the light source connectors without regard to the second control signals.
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Abstract
Aspects of the present application relate to a bypass switch for a lamp, such as a surgical or diagnostic lamp. When activated, the bypass switch may act to allow electric power to bypass elements of a control board so that the electric power is provided to the plurality of lamp elements.
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Citations
9 Claims
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1. A lamp assembly comprising:
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a plurality of light sources; a source of electrical power; a source of control signals; a control element including an normal drive circuitry and an emergency drive circuitry, the normal drive circuitry configured to provide, in accordance with first control signals received from the source of control signals, the electrical power, received from the source of electrical power, to the light sources via light source connectors, the normal drive circuitry including a potentiometer associated with each of the light source connectors; and a bypass switch configured to, responsive to activation, transmit an override signal to the control element; wherein the control element is configured to; receive, from the bypass switch, the override signal; receive, from the source of control signals, second control signals; and receive, from the source of electrical power, further electrical power; and
,wherein the emergency drive circuitry is configured to, responsive to receiving the override signal, provide the further electrical power to the light sources via the light source connectors without regard to the second control signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification