摘要:
A portable radio (306) provides a selectable and/or automatic battery conditioning mode of operation (400). Battery conditioning is achieved by discharge state (410) that discharges the battery down to a predetermined threshold using existing radio circuitry (308).
摘要:
The present invention provides a power adapter (10) adapted to couple an external antenna (17) to a communication device (30) by way of a cable (12) which is typically plugged into a cigarette lighter of a vehicle or some other power source at one end, and an input connector of the communication device (30) at the other. In particular, the present invention provides a simple one-piece vehicle power adapter which also provides RF input/output capability for connection to an external vehicle antenna. According to certain aspects of the invention, the adapter can be configured to have a variety of selection mechanisms. For example, the communication device could include an RF switch (34) and control circuitry for selecting either the internal or external antenna for optimum reception. Alternatively, the cable could include an external switch (70) for allowing the user to select the desired antenna. Finally, the cable could include a component which automatically actuates the switch to select the external antenna when the external antenna is connected to the communication device.
摘要:
A battery charging system 100 is provided which comprises a charger 101 and a battery pack 102. The battery pack 102 comprises a battery cell or cells 150, memory means 140, temperature sensing means 147, and a high accuracy, high impedance voltage sensing means 112 that senses voltage directly at the battery cell terminals 151, 149. By sensing directly at the cell terminals 151, 149, charging error due to parasitic conductor impedances 132, 138 can be eliminated. The voltage sensing means 112 allows memory 140 and thermistor 147 data to be multiplexed, allowing the system to operate with four or fewer battery terminals.
摘要:
A battery pack (304) and battery charging system (300, 400) provides contactless dynamic battery parameter sensing. A proximity sensor (208) is located in the battery pack (304) to monitor battery parameter measurements taken by battery parameter sensors (206). These battery parameter measurements are transferred to a charger (302) or radio (404) through a wireless link established between an excitation circuit, proximity sensor, and reader. The dynamically measured battery parameter information allows a charger (302) or radio (404) to select or adapt a charging routine based on the battery measurements. The use of a proximity sensor (208) along with battery parameter sensors (206) allow for minimal interface contacts between the radio and charger as well as the radio and battery.
摘要:
By monitoring both charge current and the battery voltage (306, 308) the likelihood of overcharging a battery is reduced. Battery voltage is compared to a predetermined limit (310) and the battery goes into trickle charge if the predetermined limit is exceeded (312), but now by also determining if a positive delta in charge current has occurred (314), the charger can trickle charge the battery (312) even if the cutoff voltage is never exceeded.
摘要:
A method for charging a battery or battery pack (206) provides a scheme for terminating a rapid charging regime only after both a temperature and voltage threshold are exceeded. This allows a battery to continue to receive a rapid charge even when battery temperatures are rising rapidly due to external (non-charge related) conditions.
摘要:
A battery charging system (200) provides an expanded range of battery recognition. Battery (204) includes two zener diodes (224, 226) coupled in a cathode-to-cathode configuration between the battery's capacity resistor 220 and the battery's thermistor 222. The charger 202 biases the first zener diode (224) while latching the second zener diode (226) such that the value of the latched zener diode can be determined by the A/D ports (234, 236) of the charger (202). The charger (202) then biases the second zener diode (226) and latches the first zener diode (224) so that the value of the first latched zener diode (224) can be determined through A/D ports (234, 236) of the charger. The thermistor (222) and capacity resistor (220) are read by the A/D ports (234, 236) when neither of the diodes (224, 226) is biased. Hence, the charging system (200) provides four battery ID parameters with which to identify the battery.
摘要:
A multi-purpose fastening assembly (131) which can be used for both securely fastening and charging an internal battery (113) located within a wireless microphone (103). The fastening assembly (131) includes a head portion (133) and a base plate (135) which are electrically isolated so they can be used as electrical terminals for recharging the battery (113) within the wireless microphone (103).
摘要:
Various embodiments of systems and associated methods are described herein for providing automatic selection of an operating communication mode for a mobile communication device in which a communication mode is selected depending on various conditions including power pack voltage.
摘要:
The present disclosure provides for repeatedly charging a rechargeable battery during a single charging session to a steady state voltage to attain a higher charge capacity of the rechargeable battery than a charge capacity of the rechargeable battery existing prior to the rechargeable battery being charged to the steady state voltage. The higher charge capacity is attained without exceeding a maximum allowable charge threshold of the rechargeable battery.