Magnetic latching relay control circuit used for switching music signals

Abstract

The invention provides a magnetic latching relay control circuit used for switching music signals. The magnetic latching relay control circuit comprises a coil T1 and a coil T2 of a magnetic latching relay, a trigger module and two driving modules, wherein the trigger module comprises a JK trigger; a set terminal and a reset terminal of the JK trigger are connected to a ground (GND), a terminal J and a terminal K of the JK trigger are connected to a power source plus V, and a clock terminal of the trigger is connected to the GND through a trigger resistor R1-3 and further connected to the power source plus V through a trigger capacitor C1-1 and a trigger capacitor C1-2; a node between the trigger capacitor C1-1 and the trigger capacitor C1-2 is connected to the GND through a trigger resistor R1-4; another switch S is connected in series with a trigger resistor R1-5 and then connected in parallel with the trigger capacitor C1-2; one output terminal Q of the JK trigger is connected with a driving module T2 through a current-limiting resistor R1-2, so as to control the coil T2; the other output terminal of the JK trigger is connected with a driving module T1 through a current-limiting resistor R1-1, so as to control the coil T1; and the two driving modules are provided with the same structure. The magnetic latching relay control circuit has the advantages that energy is saved and rapid operating time and rapid releasing time can also be provided.

Description

technical field [0001] The invention relates to a magnetic latching relay control circuit for music signal switching. Background technique [0002] The switching of the music signal should satisfy people's enjoyment of music without obvious difference. This requires the switching action time and release time to be less than the minimum resolution time of the human ear. Although ordinary relays can be switched, the consumption of the battery is unacceptable to the user. The magnetic latching relay is a bistable relay with low energy consumption and high stability. However, in actual use, due to the high energy consumption of the control circuit, slow action time and release time, the use of magnetic latching relays in audio signal switching circuits for electro-acoustic instruments is restricted. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a magnetic latching relay control circuit for music signal switchin...

AI Technical Summary

Problems solved by technology

However, in actual use, due to the high energy consumption of the control circuit, the slow action time and release time, etc., the use of magnetic latching relays in the audio signal switching circuits of electric musical instruments is restricted.

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