CN110708827B - Light source control circuit - Google Patents
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- CN110708827B CN110708827B CN201910994594.5A CN201910994594A CN110708827B CN 110708827 B CN110708827 B CN 110708827B CN 201910994594 A CN201910994594 A CN 201910994594A CN 110708827 B CN110708827 B CN 110708827B
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Abstract
The embodiment of the invention discloses a light source control circuit, which comprises: the light source control module is electrically connected with the power supply module and the first switch control module; the light source control module charges the power supply module according to the accessed mains supply, and the first switch control module controls the communication state of a passage connected with the power supply module and the light source in the light source control module according to the switch state of the first switch control module. By the technical scheme, the problem of insufficient electric quantity of the power supply module under an emergency condition is avoided, the first switch control module is beneficial to controlling weak current lines in the light source control module, and the problem of poor safety caused by direct cutting-off of strong current is avoided.
Description
Technical Field
The embodiment of the invention relates to the technical field of illumination, in particular to a light source control circuit.
Background
At present, a plurality of fields have illumination light sources, and under the condition that power is cut off, namely mains supply can not supply power for the light sources, some places need to provide emergency power supply loops for the light sources, so that the light sources can not illuminate when power is cut off.
At present, whether can be through switch control reserve battery to the light source power supply, when the outage, open the switch and make reserve battery to the light source power supply, when the commercial power normally supplies, turn off the switch and then break off the power supply route of battery to the light source, the switch setting of the break-make between control battery and the light source is on the strong electric wire of battery connection light source, need carry out the cutting operation to strong electric power when switching emergency state, the danger is high, and when the switch is cut off, no extra power source charges for the battery, the problem that battery electric quantity is insufficient under the emergent condition probably exists is led to, for example battery remaining electric quantity is insufficient to lighten the light source.
Disclosure of Invention
The embodiment of the invention provides a light source control circuit, which avoids the problem of insufficient electric quantity of a power supply module in an emergency situation, is beneficial to realizing the control of a first switch control module on a weak current circuit in the light source control module and avoids the problem of poor safety caused by direct cutting off of strong current.
In a first aspect, an embodiment of the present invention provides a light source control circuit, including:
the light source control module is electrically connected with the power supply module and the first switch control module;
the light source control module charges the power supply module according to the accessed mains supply, and the first switch control module controls the communication state of a passage connecting the power supply module and the light source in the light source control module according to the switch state of the first switch control module.
Optionally, the light source control module includes a first switch signal end, a second switch signal end, a first power signal end, a second power signal end, a first light source signal end and a second light source signal end;
the first switch signal end is electrically connected with the first end of the first switch control module, and the second switch signal end is electrically connected with the second end of the first switch control module;
the first power signal end is electrically connected with the positive end of the power module, and the second power signal end is electrically connected with the negative end of the power module;
The first light source signal end is electrically connected with the first end of the light source, and the second light source signal end is electrically connected with the second end of the light source;
The light source control module controls the first power supply signal end to be in short circuit with the first light source signal end and the second power supply signal end to be in short circuit with the second light source signal end according to the short circuit state of the first switch signal end and the second switch signal end.
Optionally, the light source control module includes a first switching tube and a second switching tube;
the control end of the first switching tube is in short circuit with the control end of the second switching tube to serve as a first switching signal end of the light source control module, and the second switching signal end is connected with a setting signal;
the first end of the first switching tube is used as the first power supply signal end, and the second end of the first switching tube is used as the first light source signal end;
The first end of the second switching tube is used as the second power supply signal end, and the second end of the second switching tube is used as the second light source signal end.
Optionally, the light source control module further includes a first commercial electric signal end and a second commercial electric signal end, and the light source control module further includes a voltage adjusting component;
The voltage regulating component comprises a first signal input end, a second signal input end, a first signal output end and a second signal output end, wherein the first signal input end is used as the first commercial electric signal end, the second signal input end is used as the second commercial electric signal end, the first signal output end is used as the first power supply signal end, and the second signal output end is used as the second power supply signal end;
The voltage regulating part regulates the voltage values of the signals input by the first signal input end and the second signal input end and outputs the regulated voltage signals through the first signal output end and the second signal output end.
Optionally, the light source control circuit further includes:
The first indication component is electrically connected with the light source control module, and the light source control module adjusts the indication state of the first indication component according to the communication state of the passage.
Optionally, the first indication means comprises a light indication means and/or a sound indication means.
Optionally, the light source control circuit further includes:
the second indicating component is electrically connected with the light source control module, and the light source control module adjusts the indicating state of the second indicating component according to the access state of the mains supply.
Optionally, the second indication means comprises a light indication means and/or a sound indication means.
Optionally, the light source control circuit further includes:
The second switch control module is electrically connected with the light source control module, and the second switch control module controls the communication state of the path, which is connected with the commercial power supply line and the light source, in the light source control module according to the switch state of the second switch control module.
Optionally, the light source control circuit further includes:
The test circuit wiring terminal comprises a plurality of input ends and a plurality of output ends, wherein the input ends are electrically connected with the output ends in a one-to-one correspondence manner;
the light source control module comprises a plurality of test signal input ends, a first end of the second switch control module is electrically connected with one output end of the test line connecting terminal, a second end of the second switch control module is electrically connected with the test signal input end corresponding to the output end, and the other output ends are electrically connected with the test signal input ends in a one-to-one correspondence mode.
The light source control circuit provided by the embodiment of the invention comprises: the light source control module is electrically connected with the power source module and the first switch control module, the light source control module charges the power source module according to the connected mains supply, the first switch control module controls the communication state of the power source module and the light source in the light source control module according to the self switch state, so that a branch circuit of charging the power source module by the mains supply is irrelevant to the switch state of the first switch control module, even if the power source module is disconnected from the light source charging channel by the first switch control module under an emergency condition, the mains supply can still charge the power source module by the light source control module, the problem that the power quantity of the power source module is insufficient under an emergency condition is avoided, the first switch control module does not control the on-off of a strong electric line outside the light source control module, but controls the communication state of the power source module and the light source channel in the light source control module, the weak electric line in the light source control module is controlled by the first switch control module, and the problem of poor safety caused by direct disconnection of the strong electric power is avoided.
Drawings
Fig. 1 is a schematic diagram of a light source control circuit according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another light source control circuit according to an embodiment of the present invention;
fig. 3 is a schematic diagram of another light source control circuit according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Fig. 1 is a schematic structural diagram of a light source control circuit according to an embodiment of the present invention, and referring to fig. 1, the light source control circuit includes: the light source control device comprises a power supply module 10, a light source control module 20 and a first switch control module 30, wherein the light source control module 20 is electrically connected with the power supply module 10 and the first switch control module 30, the light source control module 20 charges the power supply module 10 according to the accessed mains supply, and the first switch control module 30 controls the communication state of a passage connected with the power supply module 10 and a light source in the light source control module 20 according to the self switch state.
At present, whether the standby battery supplies power to the light source can be controlled through the switch, when the power is off, the switch is turned on to enable the standby battery to supply power to the light source, when the commercial power is supplied normally, the switch is turned off to disconnect the power supply path of the battery to the light source, the switch for controlling the on-off between the battery and the light source is arranged on a strong electric wire of the battery connection light source, the switching-off operation is required to be carried out on the strong electric power when the emergency state is switched, the danger is extremely high, and when the switch is turned off, no additional power source is used for charging the battery, so that the problem that the battery is insufficient in electric quantity under the emergency condition possibly exists, for example, the residual electric quantity of the battery is insufficient to light the light source.
Specifically, as shown in fig. 1, in the non-emergency state, the utility power supplies power to the light source through the light source control module 20, when the utility power is off, that is, in the emergency state, the power supply module 10 needs to supply power to the light source, the first switch control module 30 controls the connection between the power supply module 10 and the light source in the light source control module 20 to be conducted, the power supply module 10 supplies power to the light source, and the light source emits light. In addition, the branch circuit that the commercial power charges to the power module 10 is irrelevant with the switch state of the first switch control module 30, even if the first switch control module 30 cuts off the path that the power module 10 charges to the light source under the emergency condition, the commercial power can still charge to the power module through the light source control module 20, so that the problem of insufficient electric quantity of the power module 10 under the emergency condition is avoided, and the first switch control module 30 does not control on-off of the strong electric line outside the light source control module 20, but controls the communication state of the path connecting the power module 10 and the light source in the light source control module 20, thereby being beneficial to realizing the control of the weak electric line in the light source control module 20 by the first switch control module 30 and avoiding the problem of poor safety caused by direct cut-off of strong electric.
Fig. 2 is a schematic structural diagram of another light source control circuit according to an embodiment of the present invention, optionally, referring to fig. 2, the light source control module 20 includes a first switch signal end A1, a second switch signal end A2, a first power signal end B1, a second power signal end B2, a first light source signal end C1 and a second light source signal end C2, where the first switch signal end A1 is electrically connected to the first end D1 of the first switch control module 30, and the second switch signal end A2 is electrically connected to the second end D2 of the first switch control module 30; the first power signal end B1 is electrically connected with the positive end of the power module 10, and the second power signal end B2 is electrically connected with the negative end of the power module 10; the first light source signal terminal C1 is electrically connected to the first end E1 of the light source 80, and the second light source signal terminal C2 is electrically connected to the second end E2 of the light source 80. The light source control module 20 controls the short circuit between the first power signal terminal B1 and the first light source signal terminal C1 and the short circuit between the second power signal terminal B2 and the second light source signal terminal C2 according to the short circuit state between the first switch signal terminal A1 and the second switch signal terminal A2.
Specifically, in combination with fig. 1 and fig. 2, the first switch control module 30 may be closed, the first switch signal end and the second switch signal end are closed, the first switch control module 30 is opened, the first switch signal end A1 and the second switch signal end A2 are opened, the weak current circuit connecting the first power signal end B1 and the first light source signal end C1 is provided inside the light source control module 20, and the weak current circuit connecting the second power signal end B2 and the second light source signal end C2 is further provided, so that the first switch control module 30 is closed or opened, the short-circuit state of the first switch signal end A1 and the second switch signal end A2 is different, the light source control module 20 controls whether the weak current circuit connecting the first power signal end B1 and the first light source signal end C1 is opened or not according to the short-circuit state of the first switch signal end A1 and the second switch signal end A2, and whether the weak current circuit connecting the second power signal end B2 and the second light source signal end C2 is opened or not, that is in the control process of controlling whether the power supply module 10 supplies power to the light source 80 or not, the light source control module 20 is connected with the strong current only, and the poor connection of the light source control module 20 is avoided, and the poor safety is caused by the fact that the light source control module is connected to the light source control module 80 is directly connected to the power source control module.
Optionally, the light source control module 20 includes a first switching tube 21 and a second switching tube 22; the control end I1 of the first switching tube 21 is in short circuit with the control end J1 of the second switching tube 22 to serve as a first switching signal end A1 of the light source control module 20, and a second switching signal end A2 is connected with a setting signal; the first end I2 of the first switch tube 21 is taken as a first power supply signal end B1, and the second end I3 of the first switch tube 21 is taken as a first light source signal end C1; the first end J2 of the second switching tube 22 serves as a second power signal end B2, and the second end J3 of the second switching tube 22 serves as a second light source signal end C2.
For example, the setting signal connected to the second switch signal terminal A2 may be GND, when the mains supply fails to supply power to the light source 80, i.e. in an emergency state, the first end D1 and the second end D2 of the first switch control module 30 are shorted, the control terminal I1 of the first switch tube 21 is connected to the ground signal, i.e. the level of the control terminal I1 of the first switch tube 21 is low, and the first switch tube 21 may be a P-type transistor, so that the first end I2 of the first switch tube 21 and the second end I3 of the first switch tube 21 are turned on; the control terminal J1 of the second switching tube 22 is similarly connected to a ground signal, that is, the level of the control terminal J1 of the second switching tube 22 is low, and a P-type transistor of the second switching tube 22 may be set, so that the first terminal J2 of the second switching tube 22 and the second terminal J3 of the second switching tube 22 are turned on, so that the positive terminal +of the power module 10 is turned on with the path of the first terminal E1 of the light source 80 through the first terminal I2 of the first switching tube 21 and the second terminal I3 of the first switching tube 21, the negative terminal of the power module 10 is turned on with the path of the second terminal E2 of the light source 80 through the first terminal J2 of the second switching tube 22 and the second terminal J3 of the second switching tube 22, that is, the path of the power module 10 connected with the light source 80 is turned on, and the power module 10 supplies power to the light source 80.
When the mains supply is normally supplied, the first end D1 and the second end D2 of the first switch control module 30 are disconnected, the control end I1 of the first switch tube 21 is disconnected from the ground signal, the level of the control end I1 of the first switch tube 21 is high, and the first switch tube 21 can be set to be a P-type transistor, so that the first end I2 of the first switch tube 21 and the second end I3 of the first switch tube 21 cannot be conducted; the control end J1 of the second switching tube 22 is disconnected from the ground signal, that is, the level of the control end J1 of the second switching tube 22 is high, and a P-type transistor may be disposed as well, so that the first end J2 of the second switching tube 22 and the second end J3 of the second switching tube 22 cannot be turned on, and thus, the positive end +of the power module 10 cannot be turned on with the path of the first end E1 of the light source 80 through the first end I2 of the first switching tube 21 and the second end I3 of the first switching tube 21, and the negative end of the power module 10-cannot be turned on with the path of the second end E2 of the light source 80 through the first end J2 of the second switching tube 22 and the second end J3 of the second switching tube 22, and the power module 10 cannot supply power to the light source 80, and the power source 80 is supplied with the power from the utility.
It should be noted that fig. 2 only illustrates an internal structure of the light source control module, and the light source control module may also be formed by other circuits that can implement the same function, which is not limited in this embodiment of the present invention.
Optionally, the light source control module 20 further includes a first commercial signal terminal F1 and a second commercial signal terminal F2, and the light source control module 20 further includes a voltage adjusting component 23; the voltage adjusting part 23 includes a first signal input terminal G1, a second signal input terminal H1, a first signal output terminal G2, and a second signal output terminal H2, the first signal input terminal G1 being a first commercial signal terminal F1, the second signal input terminal H1 being a second commercial signal terminal F2, the first signal output terminal G2 being a first power signal terminal B1, the second signal output terminal H2 being a second power signal terminal B2; the voltage adjusting part 23 adjusts the voltage values of the first signal input terminal G1 and the second signal input terminal H1 input signals and outputs the adjusted voltage signals through the first signal output terminal G2 and the second signal output terminal H2.
Specifically, the utility power adjusts the voltage value through the voltage adjusting part 23, so that the adjusted voltage value meets the requirement of the voltage value of the power module 10 for charging, so that the utility power can charge the power module 10. The voltage adjusting component 23 has a first signal input end G1 as a first commercial power signal end F1, a second signal input end H1 as a second commercial power signal end F2, a first signal output end G2 as a first power signal end B1, and a second signal output end H2 as a second power signal end B2, and the commercial power can directly charge the power module 10 through the voltage adjusting component 23. Compared with the prior art that the mains supply can charge the power supply module through the switch control part in the light source control circuit, that is, the mains supply can charge the power supply module 10 only when the switch control part is closed, and the mains supply can not charge the power supply module 10 when the switch control part is opened, the light source control circuit in the embodiment can charge the power supply module 10 through the voltage regulating part 23, the closing and opening of the first switch control module 30 does not influence whether the mains supply charges the power supply module 10, the power supply module 10 can be continuously charged as long as the mains supply is connected, the sufficient electric quantity of the power supply module 10 is ensured, and the power supply module 10 has sufficient electric power to supply the light source 80 when the mains supply is disconnected.
Optionally, the power control circuit further includes a first indicating component 40, where the first indicating component 40 is electrically connected to the light source control module 20, and the light source control module 20 adjusts the indication state of the first indicating component 40 according to the communication state of the channel.
Specifically, the first indication component 40 is configured to indicate a power supply state of the power supply module 10, when the power supply module 10 supplies power to the light source 80, a path in the light source control module 20, which communicates the light source 80 with the power supply module 10, is conductive, when the power supply module 10 does not supply power to the light source 80, the path in the light source control module 20, which communicates the light source 80 with the power supply module 10, is non-conductive, the light source control module 20 adjusts the indication state of the first indication component 40 according to the communication state (conductive and non-conductive) of the path between the light source 80 and the power supply module 10, and determines whether the power supply module 10 supplies power to the light source 80 according to different indication states of the first indication component 40.
Optionally, the first indication means 40 comprises a luminous indication means and/or an audible indication means.
The light emitting indication component may be an indication lamp, which is turned on and emits light with a corresponding color when the power module 10 supplies power to the light source 80, if the indication lamp is turned on and emits red light, the indication lamp is not turned on when the power module 10 does not supply power to the light source 80; the sound indication component can send out corresponding sound prompt when the power module 10 supplies power to the light source 80, and can send out at least one reminding sound that the power module 10 does not supply power to the light source 80 when the power module 10 does not supply power to the light source 80.
Optionally, the power supply control circuit further includes a second indicating component 50, where the second indicating component 50 is electrically connected to the light source control module 20, and the light source control module 20 adjusts the indication state of the second indicating component 50 according to the access state of the mains supply.
Specifically, the second indicating component 50 is configured to indicate an access state of the mains supply, when the mains supply is powered off, the power module 10 supplies power to the light source 80, when the mains supply is not powered on, the mains supply supplies power to the light source 80, the light source control module 20 adjusts the indicating state of the second indicating component 50 according to the access state (the mains supply power off state and the normal power supply state) of the mains supply, and determines whether the mains supply supplies power to the light source 80 according to different indicating states of the second indicating component 50.
Optionally, the second indicator means 50 comprises a light-emitting indicator means and/or an audible indicator means.
Specifically, the light-emitting indication component may be an indication lamp, which is turned on and emits light with a corresponding color when the mains supply supplies power to the light source 80, for example, the indication lamp is turned on and emits green light, and the indication lamp is not turned on when the mains supply is turned off; the sound indication component can send out corresponding sound prompt when the commercial power is cut off or the commercial power is supplied to the light source 80 normally, for example, can send out the reminding sound of at least one commercial power cut off when the commercial power is cut off, and can send out the reminding sound of at least one commercial power normal supply when the commercial power is supplied normally. Or the first indication part 40 and the second indication part 50 may be provided with different light emitting colors, the first indication part 40 may be turned on and emit red light when the power module 10 supplies power to the light source 80, and the second indication part 50 may be turned on and emit green light when the mains supply supplies power to the light source 80 normally, so as to extract corresponding prompt information according to the emitted light of different colors.
Fig. 3 is a schematic structural diagram of another light source control circuit according to an embodiment of the present invention, and optionally, referring to fig. 3, the power source control circuit further includes a second switch control module 60, where the second switch control module 60 is electrically connected to the light source control module 20, and the second switch control module 60 controls a connection state of a path connecting a mains supply line and the light source 80 in the light source control module 20 according to its own switch state.
Specifically, the second switch control module 60 is closed, the commercial power test line in the light source control module 20 is connected with the path of the light source 80, the second switch control module 60 is disconnected, the commercial power test line in the light source control module 20 is disconnected with the path of the light source 80, and when the commercial power test line is connected with the path of the light source 80, if the path is normal, the commercial power can supply power to the light source 80 through the path, and the light source 80 is lighted; if the access fails, the mains supply cannot supply power to the light source 80 through the access, and the light source 80 is not lighted, so that the second switch control module 60 can be closed to test whether the access of the connection test mains supply line and the light source 80 in the light source control module 20 is normal, so that safety detection is performed before the light source 80 is used.
Optionally, the power control circuit further includes a test line connection terminal 70, where the test line connection terminal 70 includes a plurality of input ends, such as N1 to N4, and a plurality of output ends, such as K1 to K4, and the input ends are electrically connected to the output ends in a one-to-one correspondence; the light source control module 20 includes a plurality of test signal input terminals, such as L1 to L4, the first end M1 of the second switch control module 60 is electrically connected to one output terminal K1 of the test line connection terminal 70, the second end M2 of the second switch control module 60 is electrically connected to the test signal input terminal L1 corresponding to the output terminal K1, and the remaining output terminals are electrically connected to the test signal input terminals in a one-to-one correspondence.
Specifically, the second switch control module 60 is electrically connected to the light source control module 20 through the test line connection terminal 70, so that connection of wires is facilitated, the input end and the output end of the test line connection terminal 70 for transmitting the same signal are provided with holes, wires can be inserted, and can be fastened or unfastened by screws, for example, two wires are required to be connected or disconnected at any time, can be connected by the terminals, can be disconnected at any time, and are not required to be welded or wound together, so that the device is convenient and quick, and is suitable for interconnection of a large number of wires.
The light source control circuit provided by the embodiment of the invention comprises: the light source control module is electrically connected with the power source module and the first switch control module, the light source control module charges the power source module according to the accessed mains supply, the first switch control module controls the communication state of the power source module and the light source in the connection mode in the light source control module according to the self switch state, in this way, the branch circuit charged by the mains supply to the power source module is irrelevant to the switch state of the first switch control module, even if the power source module is disconnected from the light source charging channel through the first switch control module under an emergency condition, the mains supply can still charge the power source module through the light source control module, the problem that the power quantity is insufficient in the power source module under an emergency condition is avoided, and the first switch control module does not control the on-off of the strong electric line outside the light source control module, but controls the communication state of the power source module and the light source channel in the light source control module, so that the weak electric line in the light source control module is controlled by the first switch control module is facilitated, and the problem of poor safety caused by direct disconnection of the strong electric power is avoided.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (6)
1. A light source control circuit, comprising:
the light source control module is electrically connected with the power supply module and the first switch control module;
The first switch control module controls the communication state of a passage connecting the power supply module and a light source in the light source control module according to the self switch state;
The light source control module comprises a first switch signal end, a second switch signal end, a first power signal end, a second power signal end, a first light source signal end and a second light source signal end; the first switch signal end is electrically connected with the first end of the first switch control module, and the second switch signal end is electrically connected with the second end of the first switch control module; the first power signal end is electrically connected with the positive end of the power module, and the second power signal end is electrically connected with the negative end of the power module; the first light source signal end is electrically connected with the first end of the light source, and the second light source signal end is electrically connected with the second end of the light source; the light source control module controls the first power supply signal end to be in short circuit with the first light source signal end and the second power supply signal end to be in short circuit with the second light source signal end according to the short circuit state of the first switch signal end and the second switch signal end;
The light source control module comprises a first switching tube and a second switching tube; the control end of the first switching tube is in short circuit with the control end of the second switching tube to serve as a first switching signal end of the light source control module, and the second switching signal end is connected with a setting signal; the first end of the first switching tube is used as the first power supply signal end, and the second end of the first switching tube is used as the first light source signal end; the first end of the second switching tube is used as the second power supply signal end, and the second end of the second switching tube is used as the second light source signal end;
The light source control module further comprises a first commercial electric signal end and a second commercial electric signal end, and the light source control module further comprises a voltage regulating component; the voltage regulating component comprises a first signal input end, a second signal input end, a first signal output end and a second signal output end, wherein the first signal input end is used as the first commercial electric signal end, the second signal input end is used as the second commercial electric signal end, the first signal output end is used as the first power supply signal end, and the second signal output end is used as the second power supply signal end; the voltage regulating part regulates the voltage values of the signals input by the first signal input end and the second signal input end and outputs regulated voltage signals through the first signal output end and the second signal output end;
Further comprises: the first indication component is electrically connected with the light source control module, and the light source control module adjusts the indication state of the first indication component according to the communication state of the passage.
2. The light source control circuit of claim 1, wherein the first indication means comprises a light emitting indication means and/or a sound indication means.
3. The light source control circuit of claim 1, further comprising:
the second indicating component is electrically connected with the light source control module, and the light source control module adjusts the indicating state of the second indicating component according to the access state of the mains supply.
4. A light source control circuit according to claim 3, wherein the second indication means comprises a light emitting indication means and/or a sound indication means.
5. The light source control circuit of claim 1, further comprising:
The second switch control module is electrically connected with the light source control module, and the second switch control module controls the communication state of the path, which is connected with the commercial power supply line and the light source, in the light source control module according to the switch state of the second switch control module.
6. The light source control circuit of claim 5, further comprising:
The test circuit wiring terminal comprises a plurality of input ends and a plurality of output ends, wherein the input ends are electrically connected with the output ends in a one-to-one correspondence manner;
the light source control module comprises a plurality of test signal input ends, a first end of the second switch control module is electrically connected with one output end of the test line connecting terminal, a second end of the second switch control module is electrically connected with the test signal input end corresponding to the output end, and the other output ends are electrically connected with the test signal input ends in a one-to-one correspondence mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994594.5A CN110708827B (en) | 2019-10-18 | 2019-10-18 | Light source control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994594.5A CN110708827B (en) | 2019-10-18 | 2019-10-18 | Light source control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110708827A CN110708827A (en) | 2020-01-17 |
| CN110708827B true CN110708827B (en) | 2024-05-28 |
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| CN201910994594.5A Active CN110708827B (en) | 2019-10-18 | 2019-10-18 | Light source control circuit |
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