Intelligent pulse temperature control charger
First Claim
1. An intelligent pulse temperature control charger, comprising a casing and a charging circuit having a high voltage switch power supply circuit and a low voltage control circuit, wherein in the low voltage control circuit, a single chip microcomputer (SCM) is employed for controlling the low voltage control circuit, the SCM has three pins as input terminals which are connected to a temperature sampling circuit of a battery, a charging voltage sampling circuit of the battery and a charging current sampling circuit of the battery, respectively;
- the SCM has two pins as output terminals, one of which is connected via a photoelectric coupler with a high voltage switch power supply and the other of which is connected in turn with a dichromatic light emitting tube and a heat dissipation fan, the SCM in the low voltage control circuit has two pins as output terminals;
a second pin of the SCM is grounded via a resistor, the light emitting tube of the photoelectric coupler, and an indication light emitting tube, to control the high voltage switch power supply;
a third pin of the SCM is connected via a resistor to a base of a first triode, and a collector of the first triode is connected to a connection point of sixth, seventh and eighth resistors, the other end of the seventh resistor is connected to a red light of the dichromatic light emitting tube, the other end of the eighth resistor is connected to the base of a second triode, and an emitter of the second triode is connected to a base of a third triode, a collector of the second triode is connected to a green light of the dichromatic light emitting tube and one end of a ninth resistor, an emitter of the third triode is grounded, and the collector of the third triode is connected to a negative terminal of the heat dissipation fan, and a positive terminal of the heat dissipation fan is connected via a resistor to the positive terminal of a capacitor and a negative electrode of a fifth diode, a positive electrode of the fifth diode is connected to a seventh connecting terminal of a secondary coil of a high frequency transformer, and an eighth connecting terminal of the secondary coil is grounded.
1 Assignment
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Accused Products
Abstract
A battery charger employs a temperature sensor and single chip microcomputer (SCM) programs for controlling and performs charging with a pulse current. The polarization occurred during battery charging can be eliminated and the charging voltage and current can be automatically regulated based on ambient temperature. An intelligent pulse temperature control charger has a casing and a charging circuit having a high voltage switch power supply circuit and a low voltage control circuit. In the low voltage control circuit, a SCM is employed for controlling, the SCM has three pins as input terminals connected to a temperature sampling circuit, charging voltage sampling circuit and charging current sampling circuit of the battery, respectively, and the SCM has two pins as output terminals, one connected via a photoelectric coupler with the high voltage switch power supply and the other connected with a dichromatic light emitting tube and a heat dissipation fan.
7 Citations
4 Claims
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1. An intelligent pulse temperature control charger, comprising a casing and a charging circuit having a high voltage switch power supply circuit and a low voltage control circuit, wherein in the low voltage control circuit, a single chip microcomputer (SCM) is employed for controlling the low voltage control circuit, the SCM has three pins as input terminals which are connected to a temperature sampling circuit of a battery, a charging voltage sampling circuit of the battery and a charging current sampling circuit of the battery, respectively;
- the SCM has two pins as output terminals, one of which is connected via a photoelectric coupler with a high voltage switch power supply and the other of which is connected in turn with a dichromatic light emitting tube and a heat dissipation fan, the SCM in the low voltage control circuit has two pins as output terminals;
a second pin of the SCM is grounded via a resistor, the light emitting tube of the photoelectric coupler, and an indication light emitting tube, to control the high voltage switch power supply; a third pin of the SCM is connected via a resistor to a base of a first triode, and a collector of the first triode is connected to a connection point of sixth, seventh and eighth resistors, the other end of the seventh resistor is connected to a red light of the dichromatic light emitting tube, the other end of the eighth resistor is connected to the base of a second triode, and an emitter of the second triode is connected to a base of a third triode, a collector of the second triode is connected to a green light of the dichromatic light emitting tube and one end of a ninth resistor, an emitter of the third triode is grounded, and the collector of the third triode is connected to a negative terminal of the heat dissipation fan, and a positive terminal of the heat dissipation fan is connected via a resistor to the positive terminal of a capacitor and a negative electrode of a fifth diode, a positive electrode of the fifth diode is connected to a seventh connecting terminal of a secondary coil of a high frequency transformer, and an eighth connecting terminal of the secondary coil is grounded. - View Dependent Claims (2, 3, 4)
- the SCM has two pins as output terminals, one of which is connected via a photoelectric coupler with a high voltage switch power supply and the other of which is connected in turn with a dichromatic light emitting tube and a heat dissipation fan, the SCM in the low voltage control circuit has two pins as output terminals;
Specification