TWI495224B - Rapid charging apparatus of smartphone - Google Patents

Description

Fast charging device for smart phones

The present invention relates to an electronic device, and more particularly to a fast charging device for a smart phone.

With the increase in mobile phone penetration rate, mobile phones have undoubtedly replaced traditional indoor phones for modern people, and become the fastest and most convenient communication channel. However, mobile phones that only have basic functions such as calling, web browsing, and playing multimedia files are gradually unable to meet the increasingly diverse needs of consumers. In order to meet the needs of consumers, manufacturers of mobile phone products are committed to developing smart phones with stronger functions and better expansion, thereby increasing market share.

Since the smart phone has the same function as the personal computer, the smart phone can connect to the connection port of the personal computer through the connection cable, and transfer data to and from the personal computer, such as a universal serial bus (USB). ) Connection 埠. When transmitting data from smart phones and personal computers, smart phones can also receive power from a personal computer through the port to charge the battery. Due to the popularity of computers, it is becoming more and more common for smart phones to be connected to personal computers for charging. How to quickly charge smart phones through personal computers has become an important issue.

The invention provides a fast charging device for a smart phone, which can activate a fast charging function of the smart phone.

The invention provides a fast charging device for a smart phone, which comprises a first connecting unit, a second connecting unit and a fast charging source converting unit. The first connecting unit is coupled to the connecting base with the power source. The fast charge source conversion unit is coupled to the first connection unit to receive the voltage of the connection base, and provides the first voltage and the second voltage. Wherein, the first voltage is between 3.2 and 1.1 volts, the second voltage is between 2.7 and 0.6 volts, and the voltage difference between the first voltage and the second voltage is between 0.5 and 0.8 volts. The second connection unit is coupled to the smart phone and the fast charge source conversion unit to transmit the first voltage and the second voltage to the smart phone, and the smart phone activates a fast charge mode according to the first voltage and the second voltage.

In an embodiment of the invention, the fast charge source conversion unit includes a first resistor, a second resistor, a third resistor, and a fourth resistor. The first end of the first resistor is coupled to the voltage of the connection block, and the second end of the first resistor outputs the first voltage. The first end of the second resistor is coupled to the second end of the first resistor, and the second end of the second resistor is coupled to the ground voltage. The first end of the third resistor is coupled to the voltage of the connection block, and the second end of the third resistor outputs the second voltage. The first end of the fourth resistor is coupled to the second end of the third resistor, and the second end of the fourth resistor is coupled to the ground voltage.

The invention further provides a fast charging device for a smart phone, which comprises a first connecting unit, a second connecting unit, a switch and a quick charging source starting unit. The first connecting unit is coupled to the connecting base with the power source. The second connection unit is coupled to the smart phone. The switch has an input end, a first connection end, and a The second connection end, wherein the input end is coupled to the first connection unit, and the first connection end is coupled to the second connection unit. The fast charge source activation unit is coupled to the second connection end of the switch and the second connection unit to receive the power of the first connection unit, and provides the first voltage and the second voltage to the second connection unit. Wherein, the first voltage is between 3.2 and 1.1 volts, the second voltage is between 2.7 and 0.6 volts, and the second connecting unit transmits the first voltage and the second voltage to the smart phone, and the smart phone is based on the first voltage A fast charge mode is activated corresponding to the second voltage. And the voltage difference between the first voltage and the second voltage is between 0.5 and 0.8 volts. In an embodiment of the invention, the fast charge source activation unit includes a first resistor, a second resistor, a third resistor, and a fourth resistor. The first end of the first resistor is coupled to the power source of the first connecting unit, and the second end of the first resistor outputs the first voltage. The first end of the second resistor is coupled to the second end of the first resistor, and the second end of the second resistor is coupled to the ground voltage. The first end of the third resistor is coupled to the power source of the first connecting unit, and the second end of the third resistor outputs the second voltage. The first end of the fourth resistor is coupled to the second end of the third resistor, and the second end of the fourth resistor is coupled to the ground voltage.

In an embodiment of the invention, the first connecting unit is a universal serial bus (USB) connector, and the second connecting unit is a universal serial bus port.

In one embodiment of the present invention, the first voltage and the second voltage are respectively transmitted to the smart phone through a first data pin and a second data pin of the second connecting unit.

In an embodiment of the invention, the first connecting unit is an IEEE 1394 connector, and the second connecting unit is a universal serial bus port.

In an embodiment of the invention, the first connecting unit and the second connecting unit are respectively a connector having a transmission power source or a connection port having a transmission power source.

In an embodiment of the invention, the first connecting unit and the second connecting unit are connected interfaces of the same form or form.

In an embodiment of the invention, the first connecting unit and the second connecting unit are different types of connection interfaces.

Based on the above, the fast charging device of the smart phone of the present invention has a fast charging source conversion unit and a fast charging source activation unit that provide a first voltage and a second voltage that can activate the fast charging function of the smart phone. When the smart phone is coupled to the power supply connector through the fast charging device, the smart phone receives the first voltage and the second voltage to activate its fast charging function, thereby improving the charging speed of the smart phone.

The above described features and advantages of the present invention will be more apparent from the following description.

1 is a system block diagram of a fast charging device of a smart phone according to an embodiment of the invention. Referring to FIG. 1, in the embodiment, the smart phone 20 takes the iPhone as an example. The fast charging device 100 includes a fast charging source conversion unit 110, a first connection unit 120, and a second connection unit 130. The first connection unit 120 can be a connector, and can be a universal serial bus (USB) connector (that is, a connector with a transmission power supply) to be connected to the universal serial bus connection of the motherboard 10.埠 (also That is, the connection base of the power supply). At this time, the first connection unit 120 is coupled to the motherboard 10 to receive the system voltage Vcc of the motherboard 10 (ie, the voltage of the connector), wherein the system voltage Vcc may be the operating voltage or standby voltage of the motherboard 10.

On the other hand, the second connection unit 130 can be a connection port, and can be a universal serial bus connection port (that is, a connection port with transmission power) to facilitate the connection line and the second connection of the smart phone 20. The unit 130 is coupled to the second connection unit 130 to be coupled to the smart phone 20. Moreover, the second connection unit 130 is coupled to the first connection unit 120 to transmit the system voltage Vcc of the motherboard 10 to the smart phone 20 .

The fast charging source conversion unit 110 is coupled to the first connection unit 120 to receive the system voltage Vcc of the motherboard 10 and coupled to the second connection unit 130 to provide the first voltage V1 and the second voltage V2 to the smart phone 20 . Wherein, the first voltage V1 is between 3.2 and 1.1 volts, the second voltage V2 is between 2.7 and 0.6 volts, and the voltage difference between the first voltage V1 and the second voltage V2 is between 0.5 and 0.8 volts. between. Moreover, the first voltage V1 and the second voltage V2 can turn on the fast charging function of the smart phone 20.

Further, the first voltage V1 of the fast charge source conversion unit 110 is transmitted to the first data pin DP1 of the second connection unit 130 to transmit the first voltage V1 to the smart phone 20 through the first data pin DP1. The second voltage V2 of the fast charge source conversion unit 110 is transmitted to the second data pin DP2 of the second connection unit 130 to transmit the second voltage V2 to the smart phone 20 through the second data pin DP2. The first data pin DP1 can be a positive data (D+) of the universal serial bus connection port. The pin, the second data pin DP2, can be a negative data (D-) pin of the universal serial bus connection port.

According to the above, when the smart phone 20 is coupled to the motherboard 10 through the fast charging device 100, the smart phone 20 receives the first voltage V1 and the second voltage V2 supplied by the fast charging source conversion unit 110, and is smart. The mobile phone 20 receives the system voltage Vcc of the motherboard 10 through the first connection unit 120 and the second connection unit 130. At this time, the smart phone 20 is controlled by the first voltage V1 and the second voltage V2 to turn on its fast charging function, so that the smart phone 20 can receive the system voltage Vcc of the motherboard 100 and perform fast charging of the mobile phone battery. .

It should be noted that the above embodiment uses a motherboard as a device for providing power, but in other embodiments, an electronic device having a universal serial bus bar can also be used as a device for providing power, for example, having a universal serial bus. Connect the 充电器 charger or power supply. Moreover, the first connection unit 120 can also be an IEEE 1394 connector for coupling the IEEE 1394 port of the motherboard 10 to receive the system voltage Vcc of the motherboard 10. In addition, the form of the second connection unit 130 can be changed corresponding to the connection line connector of the smart phone 20. Furthermore, the first connection unit 120 and the second connection unit 130 of the embodiment of the present invention may be the connection interface of the same form (such as a universal serial bus or IEEE 1394) or the same form (joint or connection port), or may be different. Form or different form of connection interface, which can be determined according to design needs.

2 is a circuit diagram of the fast charge source conversion unit of FIG. 1. Referring to FIG. 2, in the embodiment, the fast charge source conversion unit 110 includes a first resistor. R1, a second resistor R2, a third resistor R3, and a fourth resistor R4. The first end of the first resistor R1 is coupled to the system voltage Vcc, and the second end of the first resistor R1 outputs the first voltage V1. The first end of the second resistor R2 is coupled to the second end of the first resistor R1, and the second end of the second resistor R2 is coupled to the ground voltage. The first end of the third resistor R3 is coupled to the system voltage Vcc, and the second end of the third resistor R3 is outputting the second voltage V2. The first end of the fourth resistor R4 is coupled to the second end of the third resistor R3, and the second end of the fourth resistor is coupled to the ground voltage.

3 is a system block diagram of a fast charging device of a smart phone according to another embodiment of the present invention. Referring to FIG. 1 and FIG. 3 , in the embodiment, the difference is the switch 310 of the fast charging device 300 and the fast charging source starting unit 320 . The input end 311 of the switch 310 is coupled to the first connection unit 120 to receive the power of the first connection unit 120 (ie, the system voltage Vcc), and the first connection end 312 of the switch 310 is coupled to the second connection unit 130 to transmit the system voltage. Vcc to the second connection unit 130, the second connection end 313 of the switch 310 is coupled to the fast charge source activation unit 320 to determine whether to transmit the system voltage Vcc to the fast charge source activation unit 320.

When the fast charge source activation unit 320 receives the system voltage Vcc, the first voltage V1 and the second voltage V2 are supplied by the system voltage Vcc and transmitted to the second connection unit 130. At this time, the first voltage V1 and the second voltage V2 are transmitted to the smart phone 20 through the second connection unit 130 to enable the fast charging function of the smart phone 20, so that the smart phone 20 uses the system voltage Vcc to perform the mobile phone battery. Fast charge. The circuit structure of the fast charge source activation unit 320 is similar to that of the fast charge source conversion unit 110, and details are not described herein again.

In summary, the fast charging device of the smart phone of the embodiment of the invention has a fast charging source conversion unit and a fast charging source activation unit that provide a first voltage and a second voltage that can activate the fast charging function of the smart phone. When the smart phone is coupled to the connector of the motherboard (or the connector of the electronic device) through the fast charging device, the smart phone receives the first voltage and the second voltage to activate the fast charging function, thereby improving the smart phone. Charging speed.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

10‧‧‧ motherboard

20‧‧‧Smart Phone

100, 300‧‧‧ fast charging device

110‧‧‧fast charge source conversion unit

120‧‧‧First connection unit

130‧‧‧Second connection unit

310‧‧‧Toggle switch

311‧‧‧ input

312‧‧‧ first connection

313‧‧‧Second connection

320‧‧‧fast charge source starter unit

DP1‧‧‧First data pin

DP2‧‧‧Second data pin

V1‧‧‧ first voltage

V2‧‧‧second voltage

R1‧‧‧first resistance

R2‧‧‧second resistance

R3‧‧‧ third resistor

R4‧‧‧fourth resistor

Vcc‧‧‧ system voltage

1 is a system block diagram of a fast charging device of a smart phone according to an embodiment of the invention.

2 is a circuit diagram of the fast charge source conversion unit of FIG. 1.

3 is a system block diagram of a fast charging device of a smart phone according to another embodiment of the present invention.

10‧‧‧ motherboard

20‧‧‧Smart Phone

100‧‧‧ fast charging device

110‧‧‧fast charge source conversion unit

120‧‧‧First connection unit

130‧‧‧Second connection unit

DP1‧‧‧First data pin

DP2‧‧‧Second data pin

V1‧‧‧ first voltage

V2‧‧‧second voltage

Vcc‧‧‧ system voltage

Claims (18)

A fast charging device for a smart phone, comprising: a first connecting unit coupled to a power supply connector to receive a system voltage; a fast charging source converting unit coupled to the first connecting unit to receive the connector a system voltage, and providing a first voltage and a second voltage, wherein the first voltage is between 3.2 and 1.1 volts, the second voltage is between 2.7 and 0.6 volts, and the first voltage is a voltage difference between the second voltage is between 0.5 and 0.8 volts; and a second connection unit coupled to the smart phone and the fast charge source conversion unit to apply the system voltage, the first voltage and the The second voltage is transmitted to the smart phone, and the smart phone activates a fast charge mode according to the first voltage and the second voltage to receive the system voltage for fast charging. The fast charging device of the smart phone of claim 1, wherein the fast charging source conversion unit comprises: a first resistor, the first end of the first resistor is coupled to the voltage of the connector, the first The second end of the second resistor is coupled to the second end of the second resistor, the second end of the second resistor is coupled to the second end of the first resistor, and the second end of the second resistor is coupled to a ground voltage; a third resistor, a first end of the third resistor is coupled to the voltage of the connector, a second end of the third resistor outputs the second voltage, and a fourth resistor, the first end of the fourth resistor is coupled Connected to the second end of the third resistor, the second end of the fourth resistor is coupled to the ground voltage. Fast charging of the smart phone as described in claim 1 The device, wherein the first connection unit is a universal serial bus (USB) connector, and the second connection unit is a universal serial bus connection port. The fast charging device of the smart phone of claim 3, wherein the first voltage and the second voltage are respectively transmitted through a first data pin and a second data pin of the second connecting unit To the smart phone. For example, the fast charging device of the smart phone described in claim 1 is wherein the smart phone is an iPhone. The fast charging device of the smart phone of claim 1, wherein the first connecting unit is an IEEE 1394 connector, and the second connecting unit is a universal serial bus port. The fast charging device of the smart phone of claim 1, wherein the first connecting unit and the second connecting unit are respectively a connector having a transmission power source or a port having a transmission power source. The quick charging device of the smart phone according to claim 7, wherein the first connecting unit and the second connecting unit are in the same form or form connection interface. The quick charging device of the smart phone according to claim 7, wherein the first connecting unit and the second connecting unit are different types of connecting interfaces. A fast charging device for a smart phone, comprising: a first connecting unit coupled to a connector having a power source to receive a system voltage; a second connecting unit coupled to the smart phone; a switch having an input end, a first connecting end and a second connecting end, wherein the input end is coupled to the first connecting unit, the first connection The second connection unit is coupled to the second connection unit; a fast charge source activation unit is coupled to the second connection end of the switch and the second connection unit to receive the system voltage of the first connection unit, and provide a a first voltage and a second voltage to the second connecting unit, wherein the first voltage is between 3.2 and 1.1 volts, the second voltage is between 2.7 and 0.6 volts, and the first voltage and the first The voltage difference between the two voltages is between 0.5 and 0.8 volts, and the second connecting unit transmits the system voltage, the first voltage and the second voltage to the smart phone, and the smart phone is based on the first voltage The second voltage corresponds to initiating a fast charge mode to receive the system voltage for fast charging. The fast charging device of the smart phone of claim 10, wherein the fast charging source activation unit comprises: a first resistor, the first end of the first resistor is coupled to the power of the first connecting unit, The second end of the first resistor outputs the first voltage; the second resistor is coupled to the second end of the first resistor, and the second end of the second resistor is coupled to a ground a third resistor, the first end of the third resistor is coupled to the power supply of the first connecting unit, the second end of the third resistor outputs the second voltage, and a fourth resistor, the fourth resistor The first end is coupled to the second end of the third resistor, and the second end of the fourth resistor is coupled to the ground voltage. As fast as the smart phone described in claim 10 The charging device, wherein the first connecting unit is a universal serial bus bar connector, and the second connecting unit is a universal serial bus bar port. The fast charging device of the smart phone of claim 12, wherein the first voltage and the second voltage are respectively transmitted through a first data pin and a second data pin of the second connecting unit To the smart phone. For example, the fast charging device of the smart phone described in claim 10, wherein the smart phone is an iPhone. The fast charging device of the smart phone of claim 10, wherein the first connecting unit is an IEEE 1394 connector, and the second connecting unit is a universal serial bus port. The fast charging device of the smart phone of claim 10, wherein the first connecting unit and the second connecting unit are respectively a connector having a transmission power source or a port having a transmission power source. The fast charging device of the smart phone of claim 16, wherein the first connecting unit and the second connecting unit are in the same form or form of a connection interface. The fast charging device of the smart phone of claim 16, wherein the first connecting unit and the second connecting unit are different types of connecting interfaces.