US 12,362,401 B2
Device comprising transmitter powered by external capacitor via regulator
Assaf Ganor, Herzliya (IL); Tzahi Shalit, Herzliya (IL); and Levi Schultz, Herzliya (IL)
Assigned to DSP Group Ltd., Herzliya (IL)
Filed by DSP Group Ltd., Herzliya (IL)
Filed on Sep. 22, 2023, as Appl. No. 18/472,423.
Application 18/472,423 is a continuation of application No. 16/808,422, filed on Mar. 4, 2020, granted, now 11,811,026.
Claims priority of provisional application 62/823,667, filed on Mar. 26, 2019.
Prior Publication US 2024/0088459 A1, Mar. 14, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/42 (2006.01); H01M 10/04 (2006.01); H02J 7/34 (2006.01)
CPC H01M 10/4264 (2013.01) [H01M 10/0436 (2013.01); H02J 7/345 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A coin cell powered device, comprising:
a unit; and
one or more interfaces that are configured to connect the unit with a coin cell and an external capacitor;
wherein the unit comprises a regulator, a transmitter and a charge pump;
wherein the transmitter is configured to transmit signals during a transmission period while receiving power from the external capacitor via a regulator;
wherein the charge pump is configured to perform, during a charging period, a charging process for charging the external capacitor to a charged voltage that exceeds a voltage of the coin cell, wherein the charging process comprises iterations of (a) charging a charge pump capacitor by the coin cell, and (b) discharging the charge pump capacitor to charge the external capacitor;
wherein a capacitance of the charge pump capacitor is less than a capacitance of the external capacitor; and
wherein a duration of the charging period exceeds a duration of the transmission period.