Power amplifier module circuit

Abstract

The utility model discloses a power amplifier module circuit. No.1 to No.3 pins of a singlechip circuit are connected to an OLED (Organic Light Emitting Diode) internal driving circuit; a fifth pin and a seventh pin of the single-chip microcomputer circuit are connected with the H5 interface circuit. Pins 9-11 of the single-chip microcomputer circuit are connected with the button circuit. No.17 to No.20 pins of the single-chip microcomputer circuit are connected with the H2 interface circuit; no.17 to No.20 pins of the single-chip microcomputer circuit are connected with the USB connection circuit; pins 22-25 of the single-chip microcomputer circuit are connected with the H4 interface circuit. No.30 to No.33 pins of the single-chip microcomputer circuit are connected with the H3 interface circuit; pins 34-37 of the single-chip microcomputer circuit are connected with the H1 interface circuit. And pins 43-44 of the single-chip microcomputer circuit are connected with the OLED internal drive circuit. According to the utility model, the module performance is more stable, the display is clearer, and the information response speed is shortened to 3 milliseconds.

Description

TECHNICAL FIELD

[0001] The utility model relates to power amplifier class display module technical field especially a kind of power amplifier module circuit. BACKGROUND

[0002] Power amplifier is abbreviated as power amplifier, generally refers to a kind of most basic equipment in sound system, commonly known as "amplifier", its task is to amplify the weak electric signal from signal source (in professional sound system, it is from mixing console) to drive loudspeaker to emit sound.Power amplifier its function is mainly to amplify the relatively weak signal input by sound source equipment, to generate enough current to drive loudspeaker to replay sound. Due to considering power, impedance, distortion, dynamic and different use range and control adjustment function, different power amplifier is different in internal signal processing, circuit design and production process.

[0003] The existing power amplifier module has low integration level, and the core driving display chip is an imported component. In order to solve the problems existing in the prior art, the utility model provides a power amplifier module circuit of domestic substitution, which solves the bottleneck problem of long delivery cycle of foreign chips. UTILITY MODEL CONTENT

[0004] The utility model provides a power amplifier module circuit of domestic substitution, which solves the bottleneck problem of long delivery cycle of foreign chips.

[0005] The utility model solves the technical problems by adopting the following technical solutions:

[0006] A power amplifier module circuit comprises a single-chip microcomputer circuit, an OLED internal driving circuit, an interface circuit, a key circuit, a power input circuit, an LED indicating circuit and a USB connection circuit. The No.1-3 pins of the single-chip microcomputer circuit are connected to the OLED internal driving circuit. The No.5 and No.7 pins of the single-chip microcomputer circuit are connected to the H5 interface circuit. The No.9-11 pins of the single-chip microcomputer circuit are connected to the key circuit. The No.17-20 pins of the single-chip microcomputer circuit are connected to the H2 interface circuit. The No.17-20 pins of the single-chip microcomputer circuit are connected to the USB connection circuit. The No.22-25 pins of the single-chip microcomputer circuit are connected to the H4 interface circuit. The No.30-33 pins of the single-chip microcomputer circuit are connected to the H3 interface circuit. The No.34-37 pins of the single-chip microcomputer circuit are connected to the H1 interface circuit. The No.43-44 pins of the single-chip microcomputer circuit are connected to the OLED internal driving circuit. The power input circuit is connected to the single-chip microcomputer circuit, the OLED internal driving circuit, the LED indicating circuit and the USB connection circuit.

[0007] The utility model also has the following additional technical features:

[0008] As the further specific optimization of the utility model technical scheme, the chip model of the single-chip microcomputer circuit is STC12C5A60S2-35I C8696.

[0009] As the further specific optimization of the utility model technical scheme, the chip model of the power input circuit is TLV61046ADBVR.

[0010] As the further specific optimization of the utility model technical scheme, the power input circuit inputs voltage 5V through Type C interface, generates two voltages, is U1 boost part respectively, outputs voltage 9V to OLED internal drive circuit power supply, and outputs 3.3V for OLED internal chip power supply.

[0011] As the further specific optimization of the utility model technical scheme, the single-chip microcomputer circuit adopts domestic 8-bit single-chip microcomputer, and the built-in IIC drive circuit is used to drive OLED display screen to display.

[0012] As the further specific optimization of the utility model technical scheme, the key circuit is inputted to the single-chip microcomputer IO port through the key, and interface switching and resetting single-chip microcomputer program are carried out.

[0013] As the further specific optimization of the utility model technical scheme, the three indicator lamps of LED indication circuit are used to display 5V, 9V, 3.3V power indication respectively, and the last lamp is used to display whether the single-chip microcomputer is normal.

[0014] Compared with the prior art, the utility model has the advantages that the module performance is more stable, display is clearer, and information response speed is shortened to 3 milliseconds. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is USB connection circuit structure schematic drawing of the utility model;

[0016] Figure 2 It is power input circuit structure schematic drawing of the utility model;

[0017] Figure 3 It is power input circuit structure schematic drawing of the utility model;

[0018] Figure 4 It is OLED internal drive circuit structure schematic drawing of the utility model;

[0019] Figure 5 It is LED indication circuit structure schematic drawing of the utility model;

[0020] Figure 6 It is key circuit structure schematic drawing of the utility model;

[0021] Figure 7 It is an interface circuit structure schematic diagram of the utility model.

[0022] Figure 8 It is an interface circuit structure schematic diagram of the utility model.

[0023] Figure 9 It is a single-chip microcomputer circuit structure schematic diagram of the utility model.

[0024] Mark explanation: single-chip microcomputer circuit, OLED internal drive circuit, interface circuit, keying circuit, power input circuit, LED indicating circuit, USB connection circuit. DETAILED DESCRIPTION

[0025] The exemplary embodiments disclosed by the utility model will be described in more detail below with reference to the drawings.

[0026] A power amplifier module circuit, including single-chip microcomputer circuit, OLED internal drive circuit, interface circuit, keying circuit, power input circuit, LED indicating circuit, USB connection circuit;Among them: single-chip microcomputer circuit's 1-3 pin is connected to OLED internal drive circuit;Single-chip microcomputer circuit's 5 and 7 pin is connected to H5 interface circuit;Single-chip microcomputer circuit's 9-11 pin is connected to keying circuit;Single-chip microcomputer circuit's 17-20 pin is connected to H2 interface circuit;Single-chip microcomputer circuit's 17-20 pin is connected to USB connection circuit;Single-chip microcomputer circuit's 22-25 pin is connected to H4 interface circuit;Single-chip microcomputer circuit's 30-33 pin is connected to H3 interface circuit;Single-chip microcomputer circuit's 34-37 pin is connected to H1 interface circuit;Single-chip microcomputer circuit's 43-44 pin is connected to OLED internal drive circuit;Power input circuit is connected to single-chip microcomputer circuit, OLED internal drive circuit, LED indicating circuit and USB connection circuit.

[0027] The chip model of single-chip microcomputer circuit is STC12C5A60S2-35I C8696. The chip model of power input circuit is TLV61046ADBVR.

[0028] The power input circuit inputs voltage 5V through Type C interface, generates two voltages, is U1 boost part respectively, and outputs voltage 9V to OLED internal drive circuit to power supply, and outputs 3.3V to OLED internal chip power supply.

[0029] The single-chip microcomputer circuit adopts domestic 8-bit single-chip microcomputer, and the built-in IIC drive circuit is used to drive OLED display screen to display.

[0030] The keying circuit passes through the key and transmits signal into single-chip microcomputer IO, carries out interface switching, and resets single-chip microcomputer program.

[0031] The three indicator lights of the LED indication circuit are used to display 5V, 9V, and 3.3V power indications, respectively. The last light is used to show whether the single-chip microcomputer is working normally.

[0032] The driving principle of the internal driving circuit of an OLED is the emission of light caused by carrier injection and recombination.

[0033] An OLED (Organic Light-Emitting Diode) is a current-driven organic light-emitting device whose working principle is based on the emission phenomenon caused by carrier injection and recombination of organic semiconductor materials and light-emitting materials under the driving of an electric field. Specifically, the working principle of an OLED can be divided into the following steps:

[0034] ‌Carrier injection‌: Under the action of an applied driving voltage, electrons are injected from the cathode, while holes (positive charges) are injected from the anode. These electrons and holes pass through the electron injection layer and the hole injection layer, respectively, overcoming the energy level barriers between them and the electrodes, and then enter the electron transport layer and the hole transport layer, respectively.

[0035] ‌Carrier transport‌: In the transport layers, electrons and holes move towards the light-emitting layer. The electron transport layer is responsible for transporting electrons to the light-emitting layer, while the hole transport layer is responsible for transporting holes to the light-emitting layer.

[0036] ‌Carrier recombination‌: In the light-emitting layer, electrons and holes meet and recombine to form excitons. These excitons have unstable high-energy states.

[0037] ‌Exciton de-excitation light‌: Excitons transition from high-energy states to low-energy states through radiative relaxation and emit photons, which are the visible light we see.

[0038] In addition, OLED devices also include some auxiliary layers such as electron blocking layers and hole blocking layers, which function to adjust the distribution of electrons and holes in the device to improve light-emitting efficiency and device lifespan. The driving method of an OLED is divided into active driving (active driving) and passive driving (passive driving). Active driving has a cathode band, an organic layer, and an anode band, and applies current to selected cathode bands and anode bands through an external circuit to control the emission of pixels. Passive driving controls the emission of pixels through a thin-film transistor (TFT) array.

[0039] Overall, the working principle of an OLED is based on the injection, transport, recombination, and emission processes of electrons and holes under the driving of an electric field. By precisely controlling these processes, high-efficiency, high-contrast, and color-rich displays can be achieved.

[0040] Software code:

[0041] / / Anti-display function

[0042] void OLED_ColorTurn(unsigned char i)

[0043] {

[0044] if (i == 0) {

[0045] OLED_WR_Byte(0xA6,OLED_CMD); / / Normal display

[0046] }

[0047] if (i == 1) {

[0048] OLED_WR_Byte(0xA7,OLED_CMD); / / Invert color display

[0049] }

[0050] }

[0051] / / Rotate the screen 180 degrees

[0052] void OLED_DisplayTurn(unsigned char i)

[0053] {

[0054] if (i == 0) {

[0055] OLED_WR_Byte(0xC8,OLED_CMD); / / Normal display

[0056] OLED_WR_Byte(0xA1,OLED_CMD);

[0057] }

[0058] if (i == 1) {

[0059] OLED_WR_Byte(0xC0,OLED_CMD); / / Invert display

[0060] OLED_WR_Byte(0xA0,OLED_CMD);

[0061] }

[0062] }

[0063] / / Function to send data

[0064] void OLED_WR_Byte(unsigned char dat,unsigned char cmd)

[0065] {

[0066] unsigned char i;

[0067] if (cmd)

[0068] OLED_DC_Set();

[0069] else

[0070] OLED_DC_Clr();

[0071] OLED_CS_Clr();

[0072] for (i = 0; i < 8; i++) {

[0073] OLED_SCL_Clr();

[0074] if (dat & 0x80) {

[0075] OLED_SDA_Set();

[0076] }

[0077] else {

[0078] OLED_SDA_Clr();

[0079] }

[0080] OLED_SCL_Set();

[0081] dat <<= 1;

[0082] }

[0083] OLED_CS_Set(); [[ID=�4]]

[0084] OLED_DC_Set();

[0085] } [[ID=5ƽ]]

[0086] / / Coordinate setting <000ο186>

[0087] void OLED_Set_Pos(unsigned char x, unsigned char y)

[0088] { [[ID=Ϧ9]]

[0089] OLED_WR_Byte(0xb0 + y, OLED_CMD);

[0090] OLED_WR_Byte(((x & 0xf0) >> 4) | 0x10, OLED_CMD);

[0091] 请注意,原文中存在一些可能的错误或不规范之处,比如“[[ID=5ƽ]]”“[[ID=Ϧ9]]”“[[ID=ο186]]”这些,我按照原样进行了翻译。你可以检查一下原文是否准确。OLED_WR_Byte((x&0x0f),OLED_CMD);

[0092] }

[0093] / / / / Enable OLED display

[0094] / / void OLED_Display_On(void)

[0095] / / {

[0096] / / OLED_WR_Byte(0X8D,OLED_CMD); / / SET DCDC command

[0097] / / OLED_WR_Byte(0X14,OLED_CMD); / / DCDC ON

[0098] / / OLED_WR_Byte(0XAF,OLED_CMD); / / DISPLAY ON

[0099] / / }

[0100] / / This function clears the screen, leaving the entire screen black, as if it were never turned on!!!

[0101] void OLED_Clear(void)

[0102] {

[0103] unsigned char i,n;

[0104] for(i=0;i<8;i++) {

[0105] OLED_WR_Byte (0xb0+i,OLED_CMD); / / Sets the page address (0~7)

[0106] OLED_WR_Byte (0x00,OLED_CMD); / / Sets the display position—lower column address

[0107] OLED_WR_Byte (0x10,OLED_CMD); / / Sets the display position—column height address

[0108] for(n=0;n<128;n++)

[0109] OLED_WR_Byte(0,OLED_DATA);

[0110] / / Update display

[0111] }

[0112] / / In the specified position to display a character, including partial characters

[0113] / / x:0~127

[0114] / / y:0~63

[0115] / / sizey:Select font 6x8 8x16

[0116] void OLED_ShowChar(unsigned char x, unsigned char y, unsigned char chr, unsigned char sizey)

[0117] {

[0118] unsigned char c = 0, sizex = sizey / 2;

[0119] unsigned int i = 0, size1;

[0120] if (sizey == 8)

[0121] size1 = 6;

[0122] else

[0123] size1 = (sizey / 8 + ((sizey % 8)? 1 : 0)) * (sizey / 2);

[0124] c = chr -''; / / Get the offset value

[0125] OLED_Set_Pos(x, y);

[0126] for (i = 0; i < size1; i++) {

[0127] if (i % sizex == 0 && sizey!= 8) OLED_Set_Pos(x, y++);

[0128] if (sizey == 8) OLED_WR_Byte(asc2_0806[c][i], OLED_DATA); / / 6X8 font

[0129] else if (sizey == 16) OLED_WR_Byte(asc2_1608[c][i], OLED_DATA); / / 8x16 font

[0130] / / else if(sizey==xx) OLED_WR_Byte(asc2_xxxx[c][i],OLED_DATA); / / User adds font size

[0131] else return;

[0132] }

[0133] }

[0134] / / m^n function

[0135] unsigned int oled_pow(unsigned char m,unsigned char n)

[0136] {

[0137] unsigned int result = 1;

[0138] while (n--)result*=m;

[0139] return result;

[0140] }

[0141] / / Display numbers

[0142] / / x,y : starting coordinates

[0143] / / num: The number to display

[0144] / / len : the number of digits

[0145] / / sizey: font size

[0146] void OLED_ShowNum(unsigned char x, unsigned char y, unsigned int num, unsigned char len, unsigned char sizey)

[0147] {

[0148] unsigned char t,temp,m=0;

[0149] unsigned char enshow=0;

[0150] if (sizey == 8) m = 2;

[0151] for(t=0;t <len;t++) {

[0152] temp = (num / oled_pow(10, len - t - 1)) % 10;

[0153] if (enshow == 0 && t < (len - 1)) {

[0154] if (temp == 0) {

[0155] OLED_ShowChar(x + (sizey / 2 + m) * t, y,' ', sizey);

[0156] continue;

[0157] }

[0158] else

[0159] enshow = 1;

[0160] }

[0161] OLED_ShowChar(x + (sizey / 2 + m) * t, y, temp + '0', sizey);

[0162] }

[0163] }

[0164] / / Display a character string

[0165] void OLED_ShowString(unsigned char x, unsigned char y, unsigned char *chr, unsigned char sizey)

[0166] {

[0167] unsigned char j = 0;

[0168] while (chr[j] != '\0') {

[0169] OLED_ShowChar(x, y, chr[j++], sizey);

[0170] if (sizey == 8)

[0171] x += 6;

[0172] else

[0173] x += sizey / 2;

[0174] }

[0175] }

[0176] / / Show Chinese characters

[0177] void OLED_ShowChinese(unsigned char x, unsigned char y, unsigned char no, unsigned char sizey)

[0178] {

[0179] unsigned int i, size1 = (sizey / 8 + ((sizey % 8)? 1 : 0)) * sizey;

[0180] for (i = 0; i < size1; i++) {

[0181] if (i % sizey == 0) OLED_Set_Pos(x, y++);

[0182] if (sizey == 16) OLED_WR_Byte(Hzk[no][i], OLED_DATA); / / 16x16 font

[0183] / / else if(sizey==xx) OLED_WR_Byte(xxx[c][i],OLED_DATA); / / User added font

[0184] else return;

[0185] }

[0186] }

[0187] / / Show pictures

[0188] / / x, y display coordinates

[0189] / / sizex, sizey, picture length and width

[0190] / / BMP: picture to be displayed

[0191] void OLED_DrawBMP(unsigned char x, unsigned char y, unsigned char sizex, unsigned char sizey, unsigned char BMP[])

[0192] {

[0193] unsigned int j = 0;

[0194] unsigned char i, m;

[0195] sizey = sizey / 8 + ((sizey % 8)? 1 : 0);

[0196] for (i = 0; i < sizey; i++) {

[0197] OLED_Set_Pos(x, i + y);

[0198] for (m = 0; m < sizex; m++) {

[0199] [[ID=1​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​OLED_WR_Byte(0x40, OLED_CMD); / *set display start lines* /

[0214] OLED_WR_Byte(0x81, OLED_CMD); / *contract control* /

[0215] OLED_WR_Byte(0x88, OLED_CMD); / *4d* /

[0216] OLED_WR_Byte(0x82, OLED_CMD); / * iref resistor set and adjust ISEG* /

[0217] OLED_WR_Byte(0x00, OLED_CMD);

[0218] OLED_WR_Byte(0xA1, OLED_CMD); / *set segment remap 0xA0* /

[0219] OLED_WR_Byte(0xA2, OLED_CMD); / *set seg pads hardwareconfiguration* /

[0220] OLED_WR_Byte(0xA4, OLED_CMD); / *Disable Entire Display On (0xA4 / 0xA5)* /

[0221] OLED_WR_Byte(0xA6, OLED_CMD); / *normal / reverse* /

[0222] OLED_WR_Byte(0xA8, OLED_CMD); / *multiplex ratio* /

[0223] OLED_WR_Byte(0x3F, OLED_CMD); / *duty = 1 / 64* /

[0224] OLED_WR_Byte(0xC8, OLED_CMD); / *Com scan direction 0XC0* /

[0225] OLED_WR_Byte(0xD3, OLED_CMD); / *set display offset* /

[0226] OLED_WR_Byte(0x00, OLED_CMD);

[0227] OLED_WR_Byte(0xD5, OLED_CMD); / *set osc division* /

[0228] OLED_WR_Byte(0xa0, OLED_CMD);

[0229] OLED_WR_Byte(0xD9, OLED_CMD); / *set pre-charge period* /

[0230] OLED_WR_Byte(0x22, OLED_CMD);

[0231] OLED_WR_Byte(0xdb, OLED_CMD); / *set vcomh* /

[0232] OLED_WR_Byte(0x40, OLED_CMD);

[0233] OLED_WR_Byte(0x31, OLED_CMD); / * Set pump 7.4v * /

[0234] OLED_WR_Byte(0xad, OLED_CMD); / *set charge pump enable* /

[0235] OLED_WR_Byte(0x8b, OLED_CMD); / *Set DC-DC enable (0x8a=disable; 0x8b=enable) * /

[0236] OLED_Clear();

[0237] OLED_WR_Byte(0xAF, OLED_CMD);

[0238] }

[0239] The above detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application.

Claims

1. A power amplifier module circuit, characterized in that: The single-chip microcomputer circuit, the OLED internal driving circuit, the interface circuit, the key circuit, the power input circuit, the LED indicating circuit and the USB connecting circuit are connected.

2. A power amplifier module circuit according to claim 1, wherein: The chip model of the single-chip microcomputer circuit is STC12C5A60S2-35IC8696.

3. A power amplifier module circuit according to claim 1, wherein: The chip model of the power input circuit is TLV61046ADBVR.

4. A power amplifier module circuit according to claim 1, characterized in that: The power input circuit inputs a voltage of 5V through a Type C interface, generates two voltages, and outputs a voltage of 9V to the OLED internal driving circuit and a voltage of 3.3V to the internal chip power supply of the OLED.

5. A power amplifier module circuit according to claim 1, characterized in that: The single-chip microcomputer circuit adopts a domestic 8-bit single-chip microcomputer, and drives the OLED display screen to display through a built-in IIC driving circuit.

6. A power amplifier module circuit according to claim 1, characterized in that: The key circuit transmits signals into the single-chip microcomputer IO port through the keys, switches the interface, and resets the single-chip microcomputer program.

7. A power amplifier module circuit according to claim 1, wherein: The three indicating lamps of the LED indicating circuit are used to display the 5V, 9V and 3.3V power supply indications respectively, and the last lamp is used to display whether the single-chip microcomputer works normally.

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