# US 11,440,423 B2 · System and method for on-board charger with a pulsating buffer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,440,423 B2 - Document ID: US11440423B2 - Status: Granted - Kind: B2 - Application number: 16/945,127 - Filed: 2020-07-31 - Published: 2022-02-03 - Granted: 2022-09-13 - Earliest claimed: 2020-07-31 - Assignees: Lear Corporation - Applicants: Lear Corporation - Inventors: Rafael Jimenez Pino; Pablo Gaona Rosanes; Hector Sarnago Andia; Oscar Lucia Gil - Web page: https://patentgrep.com/patent/US11440423B2 ## CPC - B60L 53/22: Constructional details or arrangements of charging converters specially adapted for charging electric vehicles - H02J 1/02: Arrangements for reducing harmonics or ripples - H02J 7/02: for charging batteries from AC mains by converters - H03K 17/952: {using inductive coils} - H03K 17/955: using a capacitive detector - B60L 2210/14: Boost converters - H02J 7/927: {with introduction of pulses during the charging process} - H02J 2105/37: exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] - H02J 2207/20: Charging or discharging characterised by the power electronics converter - Y02T 10/72: Electric energy management in electromobility - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - 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) - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract In at least one embodiment, an apparatus including a pulse buffer (PB) converter. The PB converter including a housing, a printed circuit board (PCB), at least one inductor, and at least one capacitor is provided. The PCB is positioned in the housing and includes at least one first power switch and at least one second power switch positioned thereon. The at least one inductor is positioned in the housing and off board from the PCB to interface with the at least one first power switch and the at least second power switch. The at least one capacitor is positioned in the housing and off board from the PCB to interface with the at least one first power switch and the at least one second power switch to regulate an energy output to one or more vehicle batteries during a charging operation. ## Claims ### Claim 1 An apparatus comprising: a pulsating buffer (PB) converter to provide an energy output to one or more vehicle batteries, the PB converter including: a housing; a printed circuit board (PCB) positioned in the housing and including at least one first power switch and at least one second power switch positioned thereon; at least one inductor positioned in the housing and off board from the PCB to interface with the at least one first power switch and the at least second power switch; and at least one capacitor positioned in the housing and off board from the PCB to interface with the at least one first power switch and the at least one second power switch to regulate the energy output to the one or more vehicle batteries during the charging operation. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the PB converter is a buck type converter for charging up to 800V on the one or more vehicle batteries. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein the PB converter includes the at least one inductor is in series with the at least one capacitor to form a first branch. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein the first branch is in parallel with the at least one second power switch to form a second branch. ### Claim 5 (depends on 4) The apparatus of claim 4, wherein the at least one first switch is in series with the first branch and the second branch to regulate an 800V output by reducing current through the at least one capacitor. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the PB converter is a boost type converter for charging up to 400V on the one or more vehicle batteries. ### Claim 7 (depends on 6) The apparatus of claim 6, wherein the PB converter includes the at least one inductor being in series with the at least one first power switch and the at least one second power switch. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the PB converter includes the at least one first power switch and the at least one capacitor in series with one another to form a first branch. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein the first branch is in parallel with the at least one second power switch to boost a voltage from the one or more vehicle batteries at the at least one capacitor. ### Claim 10 An apparatus comprising: a pulsating buffer (PB) converter including: a housing; a printed circuit board (PCB) positioned in the housing and including at least one first power switch and at least one second power switch positioned thereon; at least one inductor positioned in the housing and off board from the PCB to interface with the at least one first power switch and the at least second power switch; and at least one capacitor positioned in the housing and off board from the PCB to interface with the at least one first power switch and the at least one second power switch to regulate an energy output to one or more vehicle batteries during a charging operation. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the PB converter is a buck type converter for charging up to 800V on the one or more vehicle batteries. ### Claim 12 (depends on 11) The apparatus of claim 11, wherein the PB converter includes the at least one inductor is in series with the at least one capacitor to form a first branch. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein the first branch is in parallel with the at least one second power switch to form a second branch. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein the at least one first switch is in series with the first branch and the second branch to regulate an 800V output by reducing current through the at least one capacitor. ### Claim 15 (depends on 10) The apparatus of claim 10, wherein the PB converter is a boost type converter for charging up to 400V on the one or more vehicle batteries. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein the PB converter includes the at least one inductor being in series with the at least one first power switch and the at least one second power switch. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the PB converter includes the at least one first power switch and the at least one capacitor in series with one another to form a first branch. ### Claim 18 (depends on 17) The apparatus of claim 17, wherein the first branch is in parallel with the at least one second power switch to boost a voltage from the one or more vehicle batteries at the at least one capacitor. ### Claim 19 An apparatus comprising: a printed circuit board (PCB) positioned in the housing and including at least one first power switch and at least one second power switch positioned thereon; at least one inductor positioned in a housing and off board from the PCB to interface with the at least one first power switch and the at least second power switch; and at least one capacitor positioned in the housing and off board from the PCB to interface with the at least one inductor, the at least one first power switch, and the at least one second power switch to provide an energy output to store a first voltage or a second voltage on one or more vehicle batteries during a charging operation. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the first voltage is 400 V and the second voltage is 800V.