Multi-output mode charger
First Claim
Patent Images
1. A multi-mode output charger, comprising a charger and a charge unit, a circuit structure of said charger further comprising:
- a. a high-voltage rectifying circuit for transforming the indoor system power to a high-voltage direct current output;
b. a high-frequency transformer whose primary end is wired to said high-voltage rectifying circuit output for loading said high-voltage direct current output outputting a low-voltage high-frequency alternating current power in the secondary end;
c. a high-voltage end switch and a high-voltage end switch control circuit, said switch is wired to said high-frequency transformer and its “
ON” and
“
OFF”
is controlled by said control circuit with high frequency, therefore, said high-frequency transformer'"'"'s secondary end outputs a low-voltage high-frequency alternating current power;
d. a low-voltage rectifying circuit wired to the secondary end of said high-frequency transformer for outputting a direct current voltage in some specific tolerances;
e. a voltage detecting circuit and a photo coupler, said voltage detecting circuit is to monitor whether the direct current output of said low-voltage rectifying circuit locates into the specific tolerances and control said photo coupler to drive and control said high-voltage end switch control circuit for regulating the “
ON” and
“
OFF”
cycle of said high-voltage end switch;
f. a low-voltage end switch, and a filtering and anti-inversing charging circuit, said low-voltage end switch'"'"'s input end is wired to the direct current output of said low-voltage rectifying circuit and the its output is wired to said filtering and anti-inversing charging circuit for outputting a normal voltage for charging;
g. a low-voltage switch control circuit for controlling “
ON”
or “
OFF”
of said low-voltage end switch;
h. a voltage comparator and a current comparator for sending a control signal to said low-voltage end switch control circuit, therefore, the circuit decides the “
ON” and
“
OFF”
cycle of said low-voltage end switch;
i. a first reference voltage circuit outputting a voltage for comparing said voltage with a output voltage of said filtering and anti-inversing charging circuit and sending a control signal with high frequency to regulating the “
ON” and
“
OFF”
cycle of said low-voltage end switch;
j. a second reference voltage circuit and a current detecting circuit, said current detecting circuit feeds back the real current output of charging and outputs said feed back current to said current comparator comparing said feed back current with a output of said second reference voltage circuit to output a control signal to control said low-end voltage switch control circuit with high frequence and regulate the “
ON” and
“
OFF”
cycle;
k. a microprocessor and a voltage and current regulating switch, said microprocessor decides the output voltage and current of charging according to the control signal from said voltage and current regulating switch, and selection of said voltage and current regulating switch controls said first reference voltage circuit and said second reference voltage circuit to output a corresponding reference voltage being the base of said voltage comparator and current comparator comparing with a charging voltage and a charging current; and
l. a voltage transforming circuit and a current transforming circuit which sample the charging voltage and current and transforms them to be the references for said microprocessor;
wherein, said charge unit has a multi-mode charge connect set for holding batteries and connecting output voltage of said charger for charging batteries.
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Abstract
A multi-mode output charger is to support different kinds of batteries for the mobile telecommunication facility. It comprises a charger and a charge unit. Users can choose different charging voltages and charging currents with a voltage and current regulating switch of the charger. Therefore, the charger can support different voltage and current combinations for batteries. And the charge unit has several kinds of charge connecting set for different brand batteries. Also, the charge unit can extend to engage with different mode charge connecting set for enlarging its supporting range.
13 Citations
18 Claims
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1. A multi-mode output charger, comprising a charger and a charge unit, a circuit structure of said charger further comprising:
-
a. a high-voltage rectifying circuit for transforming the indoor system power to a high-voltage direct current output;
b. a high-frequency transformer whose primary end is wired to said high-voltage rectifying circuit output for loading said high-voltage direct current output outputting a low-voltage high-frequency alternating current power in the secondary end;
c. a high-voltage end switch and a high-voltage end switch control circuit, said switch is wired to said high-frequency transformer and its “
ON” and
“
OFF”
is controlled by said control circuit with high frequency, therefore, said high-frequency transformer'"'"'s secondary end outputs a low-voltage high-frequency alternating current power;
d. a low-voltage rectifying circuit wired to the secondary end of said high-frequency transformer for outputting a direct current voltage in some specific tolerances;
e. a voltage detecting circuit and a photo coupler, said voltage detecting circuit is to monitor whether the direct current output of said low-voltage rectifying circuit locates into the specific tolerances and control said photo coupler to drive and control said high-voltage end switch control circuit for regulating the “
ON” and
“
OFF”
cycle of said high-voltage end switch;
f. a low-voltage end switch, and a filtering and anti-inversing charging circuit, said low-voltage end switch'"'"'s input end is wired to the direct current output of said low-voltage rectifying circuit and the its output is wired to said filtering and anti-inversing charging circuit for outputting a normal voltage for charging;
g. a low-voltage switch control circuit for controlling “
ON”
or “
OFF”
of said low-voltage end switch;
h. a voltage comparator and a current comparator for sending a control signal to said low-voltage end switch control circuit, therefore, the circuit decides the “
ON” and
“
OFF”
cycle of said low-voltage end switch;
i. a first reference voltage circuit outputting a voltage for comparing said voltage with a output voltage of said filtering and anti-inversing charging circuit and sending a control signal with high frequency to regulating the “
ON” and
“
OFF”
cycle of said low-voltage end switch;
j. a second reference voltage circuit and a current detecting circuit, said current detecting circuit feeds back the real current output of charging and outputs said feed back current to said current comparator comparing said feed back current with a output of said second reference voltage circuit to output a control signal to control said low-end voltage switch control circuit with high frequence and regulate the “
ON” and
“
OFF”
cycle;
k. a microprocessor and a voltage and current regulating switch, said microprocessor decides the output voltage and current of charging according to the control signal from said voltage and current regulating switch, and selection of said voltage and current regulating switch controls said first reference voltage circuit and said second reference voltage circuit to output a corresponding reference voltage being the base of said voltage comparator and current comparator comparing with a charging voltage and a charging current; and
l. a voltage transforming circuit and a current transforming circuit which sample the charging voltage and current and transforms them to be the references for said microprocessor;
wherein, said charge unit has a multi-mode charge connect set for holding batteries and connecting output voltage of said charger for charging batteries. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification
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Current AssigneeLong Well Electronics Corp.
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Original AssigneeLong Well Electronics Corp.
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InventorsWu, Hsin-Hong
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Primary Examiner(s)Tso, Edward H.
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Application NumberUS09/556,708Time in Patent Office288 DaysField of Search320/106, 320/110, 320/125, 320/128, 320/160, 320/162, 320/163, 320/164US Class Current320/110CPC Class CodesH02J 2207/20 Charging or discharging cha...H02J 7/00041 in response to measured bat...H02J 7/00047 with provisions for chargin...H02J 7/02 for charging batteries from...
