GB2230405B - Portable radio telephone power supply - Google Patents
Portable radio telephone power supplyInfo
- Publication number
- GB2230405B GB2230405B GB8907872A GB8907872A GB2230405B GB 2230405 B GB2230405 B GB 2230405B GB 8907872 A GB8907872 A GB 8907872A GB 8907872 A GB8907872 A GB 8907872A GB 2230405 B GB2230405 B GB 2230405B
- Authority
- GB
- United Kingdom
- Prior art keywords
- stand
- receiver
- transmitter
- cell stack
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
- H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
- H04W52/0283—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks with sequential power up or power down of successive circuit blocks, e.g. switching on the local oscillator before RF or mixer stages
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
An electrical power supply for a hand portable cellular radio telephone having receiver and transmitter stages (3,4) operable at different voltage levels comprises a stack of series-connected rechargeable voltaic coils 5a-5f. In call mode both the receiver 3 and transmitter 4 are powered by the full cell stack developing maximum voltage, e.g. 7.2V. In stand-by the transmitter 4 is disabled by a switch S3 and the receiver 3 is powered by half, a group of, preferably the cells 5a-5c or 5d-5f providing only a portion of, preferably half, the full voltage e.g. 3.6V. Power consumption is thus reduced, e.g. by 10 - 15 mA, in stand-by mode thus increasing battery life. Switches S1 and S2 are operated in tandem in the stand-by mode to connect alternately the first half of the cell stack 5a-5c and then the second half of the cell stack 5d-5f on a periodic basis. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8907872A GB2230405B (en) | 1989-04-07 | 1989-04-07 | Portable radio telephone power supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8907872A GB2230405B (en) | 1989-04-07 | 1989-04-07 | Portable radio telephone power supply |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8907872D0 GB8907872D0 (en) | 1989-05-24 |
GB2230405A GB2230405A (en) | 1990-10-17 |
GB2230405B true GB2230405B (en) | 1993-06-30 |
Family
ID=10654631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8907872A Expired - Fee Related GB2230405B (en) | 1989-04-07 | 1989-04-07 | Portable radio telephone power supply |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2230405B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69217029T2 (en) * | 1991-05-17 | 1997-05-07 | Alsthom Cge Alcatel | Optimization device for the discharge of two electrochemical current generators |
US5877564A (en) * | 1997-02-18 | 1999-03-02 | Nokia Mobile Phones Limited | Mobile station voltage supply using level shift of base band operating voltages |
KR100506983B1 (en) * | 1997-06-27 | 2005-08-09 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Power supply switching in a radio communication device |
-
1989
- 1989-04-07 GB GB8907872A patent/GB2230405B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2230405A (en) | 1990-10-17 |
GB8907872D0 (en) | 1989-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20030407 |