A switch device may comprise a micro-relay disposed between a first terminal and a second terminal. The micro-relay may be configured to selectively electrically couple the first terminal to the second terminal. The switch device may further comprise a bypass circuit configured to selectively divert at least a portion of electrical current flowing from the first terminal to the micro-relay, and direct the diverted electrical current to the second terminal. The switch device may further comprise an energy harvesting circuit configured to (i) withdraw a portion of energy flowing into the switch device, (ii) store the portion of energy in an energy storage device, and (iii) supplying the energy stored in the energy storage device to one or more components within the switch device.

A release mechanism for surge protectors includes a first electrical connection pin soldered with a varistor's second electrode, a function rotating member sheathed on a fixed column and installed between a varistor and a bridge bracket, an elastic driving device fixed into an internal box body, and a bridge bracket fixed to a second electrical connection pin in the internal box body (2). If the varistor is not released, then the bridge bracket will be passed through a soldering window and soldered with a varistor's first electrode, or else the elastic driving device will drive the function rotating member to rotate around the fixed column. An arc shield plate shields between the bridge bracket and electrode. A failure status indicating area is exposed and a remote linkage rod is triggered.

A base of a surge protector, the surge protector comprising a function rotating member (3), and the function rotating member (3) having a remote linkage rod contact wall (3D) and a remote linkage notching (3H), and the base comprising a remote device, and the remote device having at least one remote linkage rod (9), and when the function rotating member (3) is situated at the first position, the remote linkage rod (9) is pressed down by the remote linkage rod contact wall (3D), and when the function rotating member (3) is rotated from the first position to the second position, the function rotating member (3) is rotated from the remote linkage rod contact wall (3D) to the remote linkage notching (3H) with respect to the point of action of the remote linkage rod (9) to release the remote linkage rod (9).

Various embodiments include a switch cell comprising: a semiconductor switch element; a micro-electromechanical switch element; and an electronic actuation circuit. The semiconductor switch element and the micro-electromechanical switch element are connected in parallel. In a switch-off process for the switch cell, the semiconductor switch element is switched off after the micro-electromechanical switch element is switched off.

A microelectromechanical systems (MEMS) switch device including current sensing and overcurrent protection can include a movable plate movable between an open position and a closed position, wherein the moveable plate is moved by applying at least one or more of an electrostatic force and a magnetic force to move the movable plate. The movable plate can include a shunt operable to conduct current when the movable plate is the closed position. An inductive coil electronically coupled to the shunt can detect current conducted through the shunt.

A liquid-cooled heat dissipation apparatus includes a base (10), a telesignaling linkage member (20), a sliding plate (30) and a switch module (40). The telesignaling linkage member (20) is moveably installed on the base (10). The sliding plate (30) is installed corresponding to the telesignaling linkage member (20) and generates a movement along with the telesignaling linkage member (20). The switch module (40) includes a microswitch (41) arranged corresponding to the sliding plate (30) such that the microswitch (41) is operably opened or closed based on the movement of the sliding plate (30). Accordingly, through the opening and closing of the microswitch, the telesignaling monitoring on the functional module state can be achieved.

A release mechanism for surge protectors includes a first electrical connection pin (6) soldered with a varistor's second electrode (5B), a function rotating member (3) sheathed on a fixed column (2B and installed between a varistor (5) and a bridge bracket (8), an elastic driving device (4) fixed into an internal box body (2), and a bridge bracket (8) fixed to a second electrical connection pin (7) in the internal box body (2). If the varistor (5) is not released, then the bridge bracket (8) will be passed through a soldering window (3C) and soldered with a varistor's first electrode (5A), or else the elastic driving device (4) will drive the function rotating member (3) to rotate around the fixed column (2B). An arc shield plate (3F) exposed from a failure status indicating area (2N) for triggering a remote linkage rod (9) shields the bridge bracket (8) and electrode (5A).

A liquid-cooled heat dissipation apparatus includes a base (10), a telesignaling linkage member (20), a sliding plate (30) and a switch module (40). The telesignaling linkage member (20) is moveably installed on the base (10). The sliding plate (30) is installed corresponding to the telesignaling linkage member (20) and generates a movement along with the telesignaling linkage member (20). The switch module (40) includes a microswitch (41) arranged corresponding to the sliding plate (30) such that the microswitch (41) is operably opened or closed based on the movement of the sliding plate (30). Accordingly, through the opening and closing of the microswitch, the telesignaling monitoring on the functional module state can be achieved.

Various embodiments include an arrangement comprising a plurality of MEMS switches with movable elements. The plurality of MEMS switches are connected to one another in a total-cross-tied configuration.

A switching system includes a MEMS switching circuit having a MEMS switch and a driver circuit. An auxiliary circuit is coupled in parallel with the MEMS switching circuit, the auxiliary circuit comprising first and second connections that connect the auxiliary circuit to the MEMS switching circuit on opposing sides of the MEMS switch, first and second solid state switches connected in parallel, and a resonant circuit connected between the first and second solid state switches. A control circuit controls selective switching of a load current towards the MEMS switching circuit and the auxiliary circuit by selectively activating the first and second solid state switches and the resonant circuit so as to limit a voltage across the MEMS switch by diverting at least a portion of the load current away from the MEMS switch to flow to the auxiliary circuit prior to the MEMS switch changing state.