# US 10,770,896 B2 · Solid state power controller > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,770,896 B2 - Document ID: US10770896B2 - Status: Granted - Kind: B2 - Application number: 15/364,357 - Filed: 2016-11-30 - Published: 2017-06-15 - Granted: 2020-09-08 - Earliest claimed: 2015-12-11 - Assignees: Hs Elektronik Systeme GmbH - Applicants: HS Elektronik Systeme GmbH - Inventors: Markus Greither - Web page: https://patentgrep.com/patent/US10770896B2 ## CPC - H02J 3/00: Circuit arrangements for AC mains or AC distribution networks - B64D 47/02: Arrangements or adaptations of signal or lighting devices - H02M 3/04: by static converters - H02M 5/293: using semiconductor devices only - H03K 17/08122: {in field-effect transistor switches} - H03K 17/133: {in field-effect transistor switches} - H03K 17/6874: {in a symmetrical configuration} - H02J 2105/12: supplying households or buildings - H02M 1/08: Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters - H03K 2217/0009: AC switches, i.e. delivering AC power to a load - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P) - H03K: PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M) ## Abstract Disclosed is a solid state power controller configured to supply electric power from an AC power supply to at least one load via at least one power distribution channel, the at least one power distribution channel comprising a primary solid state switching device and a secondary solid state solid state switching device connected in series. The solid state power controller includes a primary control terminal driver configured to supply a primary control voltage to the control terminal (G) of the primary solid state switching device with respect to a reference potential (R) and a secondary control terminal driver configured to supply a secondary control voltage to the control terminal (G) of the secondary solid state switching device. ## Claims ### Claim 1 A solid state power controller configured to supply electric power from an AC power supply to at least one load via at least one power distribution channel, the at least one power distribution channel comprising a primary solid state switching device and a secondary solid state solid state switching device connected in series; each of the primary and secondary solid state switching devices having a first terminal (D), a second terminal (S), and a control terminal (G), each of the primary and secondary solid state switching devices configured to switch between an OFF operation mode in which the second terminal (S) is electrically disconnected from the first terminal, and an ON operation mode in which the second terminal (S) is electrically connected to the first terminal (D), according to a control voltage applied to the control terminal (G); wherein the solid state power controller comprises: a primary control terminal driver configured to supply a primary control voltage to the control terminal (G) of the primary solid state switching device with respect to a reference potential (R); and a secondary control terminal driver configured to supply a secondary control voltage to the control terminal (G) of the secondary solid state switching device; wherein the secondary control terminal driver is electrically isolated from the primary control terminal driver; and wherein the secondary control terminal driver is configured to supply the secondary control voltage to the control terminal (G) of the secondary solid state switching device based on a control signal provided by the primary control terminal driver. ### Claim 2 (depends on 1) The solid state power controller according to claim 1, wherein the first terminal (D) of the primary solid state switching device is connected to the first terminal (D) of the secondary solid state switching device. ### Claim 3 (depends on 1) The solid state power controller according to claim 1, wherein the second terminal (S) of the primary solid state switching device is connected to the reference potential (R). ### Claim 4 (depends on 1) The solid state power controller according to claim 1, wherein the reference potential (R) is the AC power supply or derived from the AC power supply. ### Claim 5 (depends on 1) The solid state power controller according to claim 1, further comprising a control device connected to the reference potential (R), the control device configured to provide signals to the primary control terminal driver. ### Claim 6 (depends on 1) The solid state power controller according to claim 1, wherein the secondary control terminal driver is configured to supply the secondary control voltage to the control terminal (G) of the secondary solid state switching device with respect to a secondary reference potential (RA, RB), the secondary reference potential (RA, RB) corresponding to an electric potential of the second terminal (S) of the secondary semiconductor switching device. ### Claim 7 (depends on 1) The solid state power controller according to claim 1, further comprising an isolated power supply configured to supply the electric power to the secondary control terminal driver. ### Claim 8 (depends on 1) The solid state power controller according to claim 1, further comprising an overvoltage clamping device configured to restrict a voltage between the first and second terminals (S, D) of the primary and secondary semiconductor switching devices to a predetermined maximum value. ### Claim 9 (depends on 8) The solid state power controller according to claim 8, wherein the overvoltage clamping device is configured to determine a voltage difference between the control terminal (G) of the primary semiconductor switching device and the control terminal (G) of the secondary semiconductor switching device. ### Claim 10 (depends on 1) The solid state power controller according to claim 1, being configured to determine a voltage zero crossing for switching the primary and secondary solid state switching devices of the at least one power distribution channel from the OFF operation mode to the ON operation mode using the secondary solid state switching device and/or to determine a current zero crossing for switching the primary and secondary solid state switching devices of the at least one power channel from the ON operation mode to the OFF operation mode using the secondary solid state switching device. ### Claim 11 (depends on 1) The solid state power controller according to claim 1, further comprising at least two power distribution channels connected in parallel. ### Claim 12 (depends on 11) The solid state power controller according to claim 11, further comprising a control device connected to the reference potential (R), the control device configured to provide signals to the primary control terminal driver, wherein the control device is configured to provide primary control signals to the primary control terminal (G) of each of the at least two power distribution channels. ### Claim 13 (depends on 1) The solid state power controller according to claim 1, wherein the secondary control terminal driver of each of the at least one power distribution is supplied by a respective isolated control driver power supply.