Battery power supply apparatus
First Claim
1. A battery power supply apparatus comprising:
- power supply means, enclosed within a shield case that shields out noise induced from outside, that is able to make fine adjustments to the current/voltage output to the outside by means of a combination of a plurality of batteries and variable setting of resistance values, command and control means that performs command and control of said power supply means, and bidirectional transmission means that, by converting electrical signals sent out from said command and control means into optical signals or acoustic signals and transmitting the same to the power supply means and also converting optical signals or acoustic signals sent out from the power supply means into electrical signals and transmitting the same to the command and control means, is able to induce an electrically insulated state between the power supply means and command and control means and also suppress the introduction of noise into the power supply means within the shield case, said power supply means comprising;
startup/shutdown control means that receives the power required for operation from a battery, and upon receiving an optical signal based on a startup command from said command and control means, enables the supply of operating power to various functional blocks within the power supply means, and upon receiving a shutdown command from the command and control means, shuts off the supply of operating power to various functional blocks within the power supply means;
battery control means whereby the number of a plurality of batteries connected in series can be selectively set, and the selectively set state can be maintained even after the operating power is shut off;
resistance control means whereby the resistance connected to the power supply circuit consisting of batteries selected by the aforementioned battery control means can be variably set arbitrarily, and the variably set state can be maintained even after the operating power is shut off;
power supply control means that, based on power supply control commands from said command and control means, performs the selective setting of batteries by said battery control means and the variable setting of the resistance value by said resistance control means, and thus controls the current/voltage supplied from the battery-based power supply circuit;
wherein, after the current/voltage supplied to the outside from the power supply circuit of the power supply means is adjusted, it is possible to shut off the supply of operating power by the startup/shutdown control means and eliminate noise generated from the various functional blocks within the power supply means, thereby providing a low-noise battery power supply.
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Accused Products
Abstract
In a battery power supply apparatus for low-noise measurement systems or ultra high-sensitivity sensor elements (ultra-sensitive light or microwave sensors, or SQUID, SIS/SNS or other Josephson effect devices, etc.), the power supply device that supplies power to the outside and the control device that controls the power supply device perform bidirectional communications by means of an optical communications circuit, and thus it is possible to prevent noise arising in the control device from reaching the power supply device. In addition, it is possible to prevent the introduction of noise from the optical communications circuit into the power supply device within a shield case. Accordingly, it is possible to control the operation of the power supply device enclosed within the shield case from the control device outside of the shield case without having external noise affecting the power supply device. Moreover, based on commands from the control device, the power supply control device controls the battery control device and resistance control device, thus adjusting the current/voltage supplied to the outside from the power supply circuit of the power supply device and then, the startup/shutdown control device shuts off the supply of operating power, thereby eliminating noise generated by various functional blocks within the power supply device. Furthermore, the set states of the battery control device and resistance control device are maintained even after the operating power is shut off, so it is possible to continue the supply of battery power to the outside at the desired current/voltage settings at low noise.
12 Citations
6 Claims
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1. A battery power supply apparatus comprising:
- power supply means, enclosed within a shield case that shields out noise induced from outside, that is able to make fine adjustments to the current/voltage output to the outside by means of a combination of a plurality of batteries and variable setting of resistance values, command and control means that performs command and control of said power supply means, and bidirectional transmission means that, by converting electrical signals sent out from said command and control means into optical signals or acoustic signals and transmitting the same to the power supply means and also converting optical signals or acoustic signals sent out from the power supply means into electrical signals and transmitting the same to the command and control means, is able to induce an electrically insulated state between the power supply means and command and control means and also suppress the introduction of noise into the power supply means within the shield case, said power supply means comprising;
startup/shutdown control means that receives the power required for operation from a battery, and upon receiving an optical signal based on a startup command from said command and control means, enables the supply of operating power to various functional blocks within the power supply means, and upon receiving a shutdown command from the command and control means, shuts off the supply of operating power to various functional blocks within the power supply means;
battery control means whereby the number of a plurality of batteries connected in series can be selectively set, and the selectively set state can be maintained even after the operating power is shut off;
resistance control means whereby the resistance connected to the power supply circuit consisting of batteries selected by the aforementioned battery control means can be variably set arbitrarily, and the variably set state can be maintained even after the operating power is shut off;
power supply control means that, based on power supply control commands from said command and control means, performs the selective setting of batteries by said battery control means and the variable setting of the resistance value by said resistance control means, and thus controls the current/voltage supplied from the battery-based power supply circuit;
wherein, after the current/voltage supplied to the outside from the power supply circuit of the power supply means is adjusted, it is possible to shut off the supply of operating power by the startup/shutdown control means and eliminate noise generated from the various functional blocks within the power supply means, thereby providing a low-noise battery power supply. - View Dependent Claims (2, 3, 4, 5, 6)
- power supply means, enclosed within a shield case that shields out noise induced from outside, that is able to make fine adjustments to the current/voltage output to the outside by means of a combination of a plurality of batteries and variable setting of resistance values, command and control means that performs command and control of said power supply means, and bidirectional transmission means that, by converting electrical signals sent out from said command and control means into optical signals or acoustic signals and transmitting the same to the power supply means and also converting optical signals or acoustic signals sent out from the power supply means into electrical signals and transmitting the same to the command and control means, is able to induce an electrically insulated state between the power supply means and command and control means and also suppress the introduction of noise into the power supply means within the shield case, said power supply means comprising;
Specification
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- Resources
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Current AssigneeNational Institute of Information and Communications Technology
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Original AssigneeCommunications Research Laboratory Independent Administrative Institution
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InventorsYokokura, Saburo, Tacano, Munecazu, Matsui, Toshiaki
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Primary Examiner(s)Tso, Edward H.
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Application NumberUS09/964,457Publication NumberTime in Patent Office403 DaysField of Search320/110, 320/112, 320/116, 320/118, 320/120, 320/125, 320/127, 320/137US Class Current320/116CPC Class CodesG01R 1/30 Structural combination of e...H02J 7/0049 Detection of fully charged ...H02J 7/005 Detection of state of healt...
