TWI488021B - Solar power supply with adjustable power supply for multiple power supplies - Google Patents

Description

Solar power supply with adjustable power and multiple power output

This creation is about a "solar power supply with adjustable power and multiple power output", especially a voltage limiting circuit with multiple voltage adjustment functions and multiple current limiting voltages with a current adjustment function. A solar panel (module, array) has multiple sets of power output, and can stably supply power to a plurality of different load solar power supply circuits with selected power supply voltage, protected power supply current, and power supply power requirements of multiple different loads. By.

According to the current market, most of the electricity systems on the market use utility power or batteries as electric drive energy. However, for applications that are difficult to charge by using mains or batteries, it is necessary to seek alternative energy sources. The best option for alternative energy sources is to use solar energy. This is because solar energy sources have inexhaustible advantages. In addition, future oil supply, environmental awareness and other issues will gradually be valued and affect human daily life. Actively advocate the practice of green energy to reduce carbon, therefore, the use of solar energy sources has become the trend of the times.

The solar power source system uses a solar panel (module, array) to convert light energy into electrical energy. The power voltage generated by the solar panel is reduced to a power voltage through a step-down circuit of a controller. The demand value is used to supply power to a load.

However, when the solar panel is to be supplied with a plurality of different loads, the power supply voltage and the power demand value of the plurality of different loads are different, or the power supply voltage values of the plurality of different loads are the same, but the circuit is A wire impedance, a current limiting resistor, etc., and a voltage loading effect between the plurality of different loads cause the solar panel and the controller to fail to supply the plurality of different loads with the same electrical voltage. The actual power supply voltage obtained by an individual load varies with the impedance of the load itself, so that part of the load may not work properly due to insufficient supply voltage and power supply, or part of the load may be caused by excessive supply voltage and power supply. Damage to internal components.

In view of the shortcomings arising from the above prior art, the creator of this case is the innovation and innovation of the singer, and after years of painstaking research, he finally succeeded in research and development of a "solar power supply with adjustable power and multiple power output". .

The purpose of the present invention is to provide a solar power supply circuit with adjustable power output power and multiple sets of power output, which is a current limiting circuit with multiple voltage adjustment functions and multiple current limiting functions. The voltage-corresponding circuit enables a solar panel (module, array) to have multiple sets of power output, and can stably supply power to a plurality of different power sources, a selected power supply voltage, a protected power supply current, and a plurality of different load power requirements. load.

In order to achieve the above purpose, the technical means of the present invention is that a solar power supply is provided at the output end of a solar panel, and the solar power supply is provided with a plurality of sets of power output externally, and the plurality of sets of power output can be directly and multiple The load group is electrically connected, and the plurality of load groups respectively contain different loads (a plurality of different loads) of different electrical requirements. The solar power supply internally has a plurality of sets of step-down voltage regulator circuits, a plurality of voltage adjustment circuits with voltage adjustment functions, and a plurality of current limiting voltages with current adjustment functions between the solar panel and the plurality of load groups. The circuit enables the plurality of sets of buck regulator circuits to reduce and stabilize the power supply voltage supplied by the solar panel, and the plurality of sets of voltage adjustment circuits can adjust the plurality of groups via a voltage adjustment control panel external to the solar power supply The reduced voltage of the buck regulator circuit reaches the demand voltage value of the plurality of load groups (sets the voltage values of the plurality of sets of power output); and the plurality of sets of current limiting voltage follower circuits can pass the solar power source Another current adjustment control panel external to the supplier adjusts the power supply current supplied by the solar panel to meet the power current specification value (current limit) of the solar power supply and the plurality of load groups and the plurality of load groups The electric current demand value (set the maximum power consumption value of the multiple sets of power output), and the multi-group power supply output of the solar power supply has no voltage loading effect. In this way, by setting the power voltage value and the maximum power consumption value of the plurality of power sources, the power values of the plurality of power sources can be set, and the solar panel is passed through the solar power source and another external one thereof. The plurality of sets of power output selected by the power output control panel can stably supply power to the plurality of load groups with the selected power supply voltage, the protected power supply current, and the power supply requirements of the plurality of load groups.

Please refer to the following detailed description of a preferred embodiment of the present invention and its accompanying drawings, which will further understand the technical content of the present creation and its purpose:

A "solar power supply with adjustable power and multiple power output" provided by the present invention, as shown in Figures 1 and 2, is provided with a solar power supply 11 at the output end of a solar panel 10, The solar power supply 11 is externally provided with a first power output and a second power output (multiple sets of power outputs), and the first power output and the second power output are directly connected to a first load group 12 and a second load, respectively. The group 13 is electrically connected, and the first load group 12 and the second load group 13 respectively comprise different loads (a plurality of different loads) of different electrical requirements. A first step-down voltage regulator circuit 1101 (adjustable voltage regulation circuit) and a first current-limiting voltage-corresponding circuit 1102 are disposed between the solar panel 10 and the first load group 12. A first voltage regulating circuit 1103 is disposed between the first buck regulator circuit 1101 and the first current limiting voltage follower circuit 1102, so that the first buck regulator circuit 1101 can reduce and stabilize the supply of the solar panel 10. The power voltage (lower voltage, stable voltage), and the first voltage adjusting circuit 1103 can adjust the power voltage of the first buck regulator circuit 1101 to reach the load voltage of the load of the first load group 12 a value (voltage adjustment, setting one of the first power supply output voltage values); and the first current limiting voltage with the coupling circuit 1102 can adjust the power supply current supplied by the solar panel 10 to meet the first current limiting voltage The current consumption specification value (current limit) of the load of the coupling circuit 1102 and the first load group 12 and the current demand value of the load of the first load group 12 (current adjustment, setting the first power source) One of the output is the largest electricity Flow value), the first current limiting voltage follower circuit 1102 further reduces the first buck regulator circuit 1101 and the adjusted power supply voltage output (the first power supply output of the one used voltage value) has no voltage a load effect; thus, setting the power value of one of the first power output by setting the value of the power voltage and the value of the maximum power output of the first power source, so that the solar panel 10 passes the The first power supply output provided by the solar power supply 11 can stably supply power to the first load group with a selected power supply voltage, a protected power supply current, and a power supply power requirement of the load of the first load group 12 12 of this load.

Please refer to the first and second figures. The solar power supply 11 is further provided with a voltage adjustment control panel 1104, a current adjustment control panel 1105 and a power output control panel 1106. The voltage adjustment control panel 1104 and the first A first switch 1107 is disposed between the voltage adjustment circuit 1103, and a second switch 1108 is disposed between the current adjustment control panel 1105 and the first current limiting voltage follower circuit 1102. The power output control panel 1106 and the first A third switch 1109 is disposed between the load group 12, so that the voltage adjustment control panel 1104 can control the first switch 1107 to be turned on (ON), so that the first voltage adjustment circuit 1103 can adjust the control panel via the voltage. 1104 adjusts the reduced power supply voltage (voltage adjustment) of the first buck regulator circuit 1101, or the voltage adjustment control panel 1104 can control the first switch 1107 to be open (OFF) as the cut-off, then the The first voltage adjustment circuit 1103 stops the voltage adjustment (stop voltage adjustment) of the power supply voltage that has been reduced by the first buck regulator circuit 1101; and the current adjustment control panel 1105 can control the current The second switch 1108 is turned on (ON) to be turned on, so that the first current limiting voltage with the coupling circuit 1102 can adjust the power supply current (current adjustment) supplied by the solar panel 10 via the current adjustment control panel 1105, or The current adjustment control panel 1105 can control the second switch 1108 to be open (OFF) as the cut-off conduction, and the first current-limiting voltage with the coupling circuit 1102 stops the current adjustment of the power supply current supplied by the solar panel 10 (stop current) The power output control panel 1106 can control the third switch 1109 to be turned on (ON) to be turned on, so that the solar panel 10 can be powered by the first power output supplied by the solar power supply 11 The first load group 12 (first power output), or the power output control panel 1106 can control the third switch 1109 to be turned off (OFF), and the solar panel 10 is powered by the solar power source. The first power output supplied by the supplier 11 stops supplying power to the first load group 12 (stopping the first power output). The voltage adjustment control panel 1104, the current adjustment control panel 1105, and the power output control panel 1106 can selectively control the first switch 1107 and the second switch 1108 according to the actual electrical demand of one of the first load groups 12 . The timing of the third switch 1109 is closed or open.

Referring to FIG. 1 and FIG. 2 , a second step-down voltage regulator circuit 1110 (adjustable voltage regulation circuit) and a capacitor between the solar panel 10 and the second load group 13 are also disposed inside the solar power supply 11 . a second current limiting voltage follower circuit 1111, a second voltage adjusting circuit 1112 is disposed between the second buck regulator circuit 1110 and the second current limiting voltage follower circuit 1111, so that the second buck regulator circuit 1110 can also reduce and stabilize the power supply voltage (lower voltage, stable voltage) supplied by the solar panel 10, and the second voltage adjusting circuit 1112 can also adjust the reduced power supply voltage of the second buck regulator circuit 1110. The voltage demand value of the load of one of the second load groups 13 (voltage adjustment, setting one of the power values of the second power output); and the second current limiting voltage with the coupling circuit 1111 can also adjust the solar panel 10 supply current to meet the current limit specification value (current limit) of the load of the second current limiting voltage follower circuit 1111 and the second load group 13 and the load of the second load group 13 Current demand value (current adjustment, setting) The second power-supply voltage outputting circuit 1111 further reduces the adjusted power supply voltage output (the second power supply) The output voltage value of the output is no voltage load effect; thus, one of the second power output can be set by setting the power voltage value and the maximum power consumption value of the second power output The electric power value, and the second power output of the solar panel 10 via the solar power supply 11 can also be the selected power supply voltage, the protected power supply current, and the power supply of the load of the second load group 13 The power demand stabilizes the power supply to the load of the second load group 13.

Referring to FIGS. 1 and 2 , a fourth switch 1113 is further disposed between the voltage adjustment control panel 1104 and the second voltage adjustment circuit 1112 , and the current adjustment control panel 1105 and the solar power supply 11 . A fifth switch 1114 is disposed between the second current limiting voltage and the decoupling circuit 1111. A sixth switch 1115 is disposed between the power output control panel 1106 and the second load group 13 to enable the voltage adjustment control panel 1104 to control the The fourth switch 1113 is turned on (ON) to be turned on, so that the second voltage adjusting circuit 1112 can adjust the reduced power voltage (voltage adjustment) of the second buck regulator circuit 1110 via the voltage adjustment control panel 1104. Alternatively, the voltage adjustment control panel 1104 can control the fourth switch 1113 to be open (OFF) to be turned off, and the second voltage adjustment circuit 1112 stops the reduced power supply voltage of the second buck regulator circuit 1110. Voltage adjustment (stop voltage adjustment); the current adjustment control panel 1105 can also control the fifth switch 1114 to be turned on (ON) to be turned on, so that the second current limiting voltage with the coupling circuit 1111 can be powered The flow adjustment control panel 1105 adjusts the power supply current (current adjustment) supplied by the solar panel 10, or the current adjustment control panel 1105 can control the fifth switch 1114 to be open (OFF) to be turned off, then the second The current limiting voltage follower circuit 1111 stops the current adjustment (stop current adjustment) of the power supply current supplied by the solar panel 10; further, the power output control panel 1106 can also control the sixth switch 1115 to be closed (ON) as Turning on, the second power output supplied by the solar panel 10 via the solar power supply 11 can be powered to the second load group 13 (second power output), or the power output control panel 1106 can control the sixth The switch 1115 is open (OFF) to be turned off, and the second power supply output of the solar panel 10 via the solar power supply 11 stops supplying power to the second load group 13 (stopping the second power output). The voltage adjustment control panel 1104, the current adjustment control panel 1105, and the power output control panel 1106 can also selectively control the fourth switch 1113 and the fifth switch according to the actual electrical demand of one of the second load groups 13 . The timing of 1114 and the sixth switch 1115 is closed or open.

Please refer to FIG. 2 and FIG. 3 , wherein the first current limiting voltage with coupling circuit 1102 of the solar power supply 11 is composed of a single power supply operational amplifier 11021 and a transistor circuit 11022 (complementary transistor circuit or Lington consists of a transistor circuit and a current limiting variable resistor 11023. The single-supply operational amplifier 11021 has a unity gain negative feedback loop, such that the single-supply operational amplifier 11021 can limit the output of the solar panel 10 to the load of the first load group 12 via the first buck regulator circuit 1101. The power supply voltage (the first power output) maintains a fixed value (the required voltage value of the load) to avoid the circuit lead impedance after the first buck regulator circuit 1101 and the first load group 12 A voltage load effect is generated between the loads, so that the power supply voltage output by the first buck regulator circuit 1101 fails to reach the power demand value of the load of the first load group 12, and the first buck is also avoided. The circuit lead impedance after the voltage stabilizing circuit 1101 and the plurality of different loads of the first load group 12 (the same as the electric voltage demand value and the load impedance are different) generate a voltage load effect, so that the first buck regulator circuit 1101 outputs The plurality of different loads of the first load group 12 are not powered by the same supply voltage. In addition, the transistor circuit 11022 can amplify the current demand value of the current outputted by the solar panel 10 via the single-supply operational amplifier 11021 to the load of the first load group 12, and the current limiting variable resistor 11023 The current adjustment control panel 1105 can limit and adjust the current consumption specification that the output current of the transistor circuit 11022 is amplified to satisfy the load of the first current limiting voltage with the circuit 1102 and the first load group 12 The value allows the solar panel 10 to supply power to the load (current limit) of the first load group 12 via the solar power supply 11 with a protected power supply current. Similarly, the internal circuit structure and circuit function of the other second current limiting voltage of the solar power supply 11 are completely consistent with the internal circuit structure and circuit function of the first current limiting voltage dependent circuit 1102.

Please refer to FIG. 2 and FIG. 4 , wherein the first voltage adjusting circuit 1103 of the solar power supply 11 is composed of a minimum voltage fixed resistor 11031 and a voltage adjusting variable resistor 11032 . The minimum voltage fixed resistor 11031 can be configured to cause the first buck regulator circuit 1101 to lower the power supply voltage supplied by the solar panel 10 to a minimum power demand value of the first power output, and the voltage adjustment variable resistor The voltage adjustment control panel 1104 can adjust, by the voltage adjustment control panel 1104, the first voltage-down regulator circuit 1101 to lower the power supply voltage of the solar panel 10 to a load value of the load of the first load group 12, so that the solar energy is The board 10 can supply power to the load of the first load group 12 via the solar power supply 11 at a selected power supply voltage. Similarly, the internal circuit structure and circuit function of the other second voltage adjusting circuit 1112 of the solar power supply 11 are completely consistent with the internal circuit structure and circuit function of the first voltage adjusting circuit 1103.

In addition, the solar power supply 11 can adjust the power supply voltage supplied by the solar panel 10 to reach the power demand value of the first load group 12 and the second load group 13 through the voltage adjustment control panel 1104, and can be The voltage adjustment control panel 1104 displays the adjusted power supply voltage, and the solar power supply 11 can also adjust the power supply current supplied by the solar panel 10 via the current adjustment control panel 1105 to reach the first load group 12 and the second The power demand value of the load group 13 is displayed, and the adjusted power source current is displayed via the current adjustment control panel 1105. When the solar light is enhanced to cause the solar panel 10 to supply more power supply voltage and more power supply current, the voltage adjustment control panel 1104 can display more power supply voltages, and the current adjustment control panel 1105 displays more power supply currents. The solar power supply 11 can adjust the power supply voltage and the power supply current supplied by the solar panel 10 to reach the electric power demand value and the electric current demand value of the first load group 12 and the second load group 13; When the solar light is weakened, the solar panel 10 supplies less power supply voltage and less power supply current, the voltage adjustment control panel 1104 can also display less power supply voltage, and the current adjustment control panel 1105 displays less power. a current source that allows the solar power supply 11 to adjust the power supply voltage and the power supply current supplied by the solar panel 10 to approximate the power demand value of the first load group 12 and the second load group 13 , The electric current demand value is used, or the solar power supply 11 can stop supplying power to the first load group 12 and the second load group 13.

In this manner, the first voltage adjustment circuit 1103 and the second voltage adjustment circuit 1112 of the solar power supply 11 can be adjusted to reduce the first step-down regulator circuit 1101 and the second step-down regulator circuit 1110. Stabilizing the power supply voltage supplied by the solar panel 10 to the electric power demand value of the first load group 12 and the second load group 13, and the solar panel 10 can be powered by the selected power supply voltage via the solar power supply 11 The first load group 12 and the second load group 13 do not cause the load of the first load group 12 and the second load group 13 to be unable to work normally due to insufficient supply voltage and power supply, or the first The load of the load group 12 and the second load group 13 is damaged by the internal components of the load due to the excessive supply voltage and power supply. At the same time, the first current limiting voltage with the coupling circuit 1102 and the second current limiting voltage with the coupling circuit 1111 of the solar power supply 11 can limit and adjust the power supply current supplied by the solar panel 10 to meet the solar power supply. The current consumption specification values of the first load group 12 and the second load group 13 and the current demand values of the first load group 12 and the second load group 13, and the solar panel 10 passes the The solar power supply 11 can supply the protected power supply current to the first load group 12 and the second load group 13 without excessive supply current, so that the internal circuit components of the solar power supply 11 are damaged. The single-supply operational amplifier 11021, the transistor circuit 11022) or the first load group 12 and the second load group 13 are loaded with internal components.

The detailed description above is specific to one of the possible embodiments of this creation. It is to be understood that the examples are not intended to limit the scope of the invention, and equivalent embodiments or variations, such as equivalent variations, should be included in the scope of the patent. in.

10‧‧‧ solar panels

11‧‧‧Solar power supply

1101‧‧‧First step-down regulator circuit

1102‧‧‧First current limiting voltage with coupling circuit

11021‧‧‧Single-Supply Operational Amplifier

11022‧‧‧Crystal circuit

11023‧‧‧current limiting variable resistor

1103‧‧‧First voltage adjustment circuit

11031‧‧‧Minimum voltage fixed resistor

11032‧‧‧Voltage adjustment variable resistor

1104‧‧‧Voltage adjustment control panel

1105‧‧‧Current adjustment control panel

1106‧‧‧Power Output Control Panel

1107‧‧‧First switch

1108‧‧‧Second switch

1109‧‧‧third switch

1110‧‧‧Second step-down regulator circuit

1111‧‧‧Second current limiting voltage with coupling circuit

1112‧‧‧Second voltage adjustment circuit

1113‧‧‧fourth switch

1114‧‧‧ fifth switch

1115‧‧‧ sixth switch

12‧‧‧First load group

13‧‧‧Second load group

Figure 1 is a block diagram of the structure of the creation.

Figure 2 is an internal block diagram of the solar power supply of the creation.

The third figure is the internal block diagram of the first current-limiting voltage with the coupling circuit of the creation.

Figure 4 is an internal block diagram of the first voltage adjustment circuit of the present invention.

10. . . Solar panels

11. . . Solar power supply

12. . . First load group

13. . . Second load group

Claims (3)

A solar power supply with adjustable power and multiple power output, the solar power supply can adjust a power supply voltage supplied by a solar panel via a voltage adjustment control panel to achieve a load voltage demand value of a load, and adjust the voltage through the voltage The control panel displays the adjusted power supply voltage, and the solar power supply can also adjust the power supply current supplied by the solar panel via a current adjustment control panel to reach the current demand value of the load, and display the control panel through the current adjustment panel. The adjusted power supply current; when the solar light is enhanced to cause the solar panel to supply more power supply voltage and more power supply current, the voltage adjustment control panel can display more power supply voltage, and the current adjustment control panel displays The power supply current allows the solar power supply to adjust the power supply voltage and the power supply current supplied by the solar panel to reach the power demand value of the load and the current demand value, and the solar panel supply is caused when the sunlight is weakened. Less power supply voltage, less power supply current, The voltage adjustment control panel displays less power supply voltage, and the current adjustment control panel displays less power supply current, so that the solar power supply can adjust the power supply voltage and the power supply current supplied by the solar panel to approach the power consumption voltage of the load. The demand value, the current demand value, or the solar power supply can stop supplying power to the load; thus, through the setting and operation of the solar power supply, a solar panel can adjust the selected power voltage, Adjust the selected supply current to stably supply power to loads of different electrical requirements. Solar power supply with adjustable power and multiple power output, The solar power supply can be expanded to include a microprocessor circuit, so that the solar power supply can set a power supply voltage supplied by a solar panel via a voltage adjustment control panel and the microprocessor circuit to achieve a load. The electric power demand value, the solar power supply device can also set a power supply current supplied by the solar panel via a current adjustment control panel and the microprocessor circuit to achieve a current demand value of the load; when the solar light enhances the solar energy When the board supplies more power supply voltage and more power supply current, the solar power supply can automatically adjust the power supply voltage and the power supply current supplied by the solar panel to achieve the power demand voltage of the load. Value, the current demand value, and when the solar light is weakened, the solar panel supplies less power supply voltage and less power supply current, so that the solar power supply can also automatically adjust the solar energy by the microprocessor circuit. The supply voltage and power supply current supplied by the board are close to the load voltage demand value of the load, and the current is used. Evaluating, or enabling the solar power supply to automatically stop supplying power to the load by the microprocessor circuit; thus, through the expansion and setting of the solar power supply, a solar panel can be automatically Adjust the selected power supply voltage, the hardware automatically adjusts the selected power supply current, and stably supplies power to the load of different electrical requirements. The solar power supply device with adjustable power multi-power output according to the second aspect of the patent application, the microprocessor circuit and the voltage adjustment control panel, the current adjustment control panel can be changed into a computer software interface, so that The solar power supply can set a power supply voltage supplied by a solar panel through the computer software interface to reach a load electric voltage The demand value, the solar power supply can also set the power supply current supplied by the solar panel through the computer software interface to reach the current demand value of the load; when the sunlight is enhanced, the solar panel supplies more power supply voltage, When the power supply current is large, the solar power supply can automatically adjust the power supply voltage and the power supply current supplied by the solar panel by the software interface of the computer to reach the power demand value and the current demand value of the load. When the solar light is weakened, the solar panel supplies less power supply voltage and less power supply current, so that the solar power supply can automatically adjust the power supply voltage and the power supply current supplied by the solar panel by the computer software interface to approach the The demand voltage value of the load, the demand value of the electric current, or the solar power supply can automatically stop supplying power to the load through the computer software interface; thus, through the expansion setting and operation of the solar power supply, Enable a solar panel to automatically adjust the selected power supply voltage and software to automatically adjust The constant current power supply, the power supply to the load stably different electrical requirements of use.