Green power converter

Abstract

A green power converter which omits the pulse width modulation (PWM) technique in the traditional power converter, does not have high-frequency power device, does not generate EMI interference, simultaneously adopts the symmetry basic primitive (SBP) technique, the amplitude high modulate (AHM) technique and the dynamic rectification (DR) technique, and only needs to perform traditional power conversion on a small part of the input power so as to acquire the whole output power, namely that a large part of the output power neither need traditional power conversion nor need to pass through a magnetic core transformer. The input AC voltage neither needs to be rectified and filtered nor has large inductance and large capacitance, thus the power factor is 1, and the total harmonic distortion (THD) is 0. A transformer secondary side adopts dynamic rectification, can acquire a DC circuit, and can also acquire an AC voltage. The circuit complexity, the power consumption and the failure rate of the whole green power converter are greatly lowered, and the power converter can be applied in all the fields to replace the traditional power converter.

What is claimed is: 
     
         1 . A power converter, comprising:
 a first basic circuit comprising a first unit circuit with a first end point A and a second end point B;   a second basic circuit comprising a second unit circuit with a first end point A and a second end point B, and a first transformer with a primary side and a secondary side; and   a third basic circuit comprising a third unit circuit with a first end point A and a second end point B, and a second transformer with a primary side and a secondary side;   wherein the secondary sides of the first and second transformers are connected to corresponding dynamic rectification circuits.   
     
     
         2 . The power converter of  claim 1 , wherein the first end point A of the first unit circuit is connected with the fire wire of an input voltage (Vin), and a first resistor or capacitor element is connected between the zero wire of the input voltage and the second end point B of the first unit circuit, wherein the first resistor or capacitor element comprises a first resistor or a first step-up capacitor network and step-down capacitor network. 
     
     
         3 . The power converter of  claim 2 , wherein the first end point A of the second unit circuit is connected with the primary side of the first transformer, and the second end point B of the second unit circuit is connected to the negative electrode or zero wire of the input voltage. 
     
     
         4 . The power converter of  claim 3 , wherein the first end point A of the third unit circuit is connected with the primary side of the second transformer, and a second resistor or capacitor element is connected between the zero wire of the input voltage and the second end point B of the third unit circuit, wherein the second resistor or capacitor element comprises a second resistor or a second step-up capacitor network and step-down capacitor network 
     
     
         5 . The power converter of  claim 1 , wherein the first unit circuit comprises one of the following two forms:
 a first form comprising a first and a second field effect tube, and a first and second diode, wherein the unit circuit end point A is formed by connection of the positive electrode of the first diode with the negative electrode of the second diode, and the unit circuit endpoint B is formed by the source electrode of the second field-effect tube, further wherein the drain electrode of the first field effect tube is connected with the negative electrode of the first diode, the source electrode of the first field effect tube is connected to the unit circuit end point B, the drain electrode of the second field effect tube is connected with the positive electrode of the second diode, the source electrode of the second field effect tube is connected to the unit circuit end point B, the grid electrode of the first field effect tube is connected to the positive electrode of a first driving voltage, the grid electrode of the second field effect tube is connected to the negative electrode of a second driving voltage, and the negative electrode of the first driving voltage and the positive electrode of the second driving voltage are connected to the unit circuit end point B; or   a second form comprising a first and a second field tube, wherein the unit circuit end point A is the drain electrode of the first field effect tube, and the unit circuit end point B is the source electrode of the second field effect tube, further wherein the source electrode of the first field effect tube is connected to the drain electrode of the second field effect tube, the grid electrode of the first field effect tube is connected to the grid electrode of the second field effect tube, the grid electrode of the first field effect tube is connected to the positive electrode of a first driving voltage, and the negative electrode of the first driving voltage is connected to the unit circuit end point B.   
     
     
         6 . The power converter of  claim 1 , wherein the second unit circuit comprises one of the following two forms:
 a first form comprising a first and a second field effect tube, and a first and second diode, wherein the unit circuit end point A is formed by connection of the positive electrode of the first diode with the negative electrode of the second diode, and the unit circuit endpoint B is formed by the source electrode of the second field-effect tube, further wherein the drain electrode of the first field effect tube is connected with the negative electrode of the first diode, the source electrode of the first field effect tube is connected to the unit circuit end point B, the drain electrode of the second field effect tube is connected with the positive electrode of the second diode, the source electrode of the second field effect tube is connected to the unit circuit end point B, the grid electrode of the first field effect tube is connected to the positive electrode of a first driving voltage, the grid electrode of the second field effect tube is connected to the negative electrode of a second driving voltage, and the negative electrode of the first driving voltage and the positive electrode of the second driving voltage are connected to the unit circuit end point B; or   a second form comprising a first and a second field tube, wherein the unit circuit end point A is the drain electrode of the first field effect tube, and the unit circuit end point B is the source electrode of the second field effect tube, further wherein the source electrode of the first field effect tube is connected to the drain electrode of the second field effect tube, the grid electrode of the first field effect tube is connected to the grid electrode of the second field effect tube, the grid electrode of the first field effect tube is connected to the positive electrode of a first driving voltage, and the negative electrode of the first driving voltage is connected to the unit circuit end point B.   
     
     
         7 . The power converter of  claim 1 , wherein the third unit circuit comprises one of the following two forms:
 a first form comprising a first and a second field effect tube, and a first and second diode, wherein the unit circuit end point A is formed by connection of the positive electrode of the first diode with the negative electrode of the second diode, and the unit circuit endpoint B is formed by the source electrode of the second field-effect tube, further wherein the drain electrode of the first field effect tube is connected with the negative electrode of the first diode, the source electrode of the first field effect tube is connected to the unit circuit end point B, the drain electrode of the second field effect tube is connected with the positive electrode of the second diode, the source electrode of the second field effect tube is connected to the unit circuit end point B, the grid electrode of the first field effect tube is connected to the positive electrode of a first driving voltage, the grid electrode of the second field effect tube is connected to the negative electrode of a second driving voltage, and the negative electrode of the first driving voltage and the positive electrode of the second driving voltage are connected to the unit circuit end point B; or   a second form comprising a first and a second field tube, wherein the unit circuit end point A is the drain electrode of the first field effect tube, and the unit circuit end point B is the source electrode of the second field effect tube, further wherein the source electrode of the first field effect tube is connected to the drain electrode of the second field effect tube, the grid electrode of the first field effect tube is connected to the grid electrode of the second field effect tube, the grid electrode of the first field effect tube is connected to the positive electrode of a first driving voltage, and the negative electrode of the first driving voltage is connected to the unit circuit end point B.   
     
     
         8 . The power converter of  claim 1 , wherein the first and second voltages are generated by a high-frequency driving signal generator (VDrvh) and a synchronous driving signal generator (VDrvs). 
     
     
         9 . The power converter of  claim 1 , further comprising an amplitude height modulation circuit.